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Repository files navigation

SAFESWAP LOGO_ON RICH BLACK

SafeSwap

P2P USDC Transfers on Stellar

Welcome to SafeSwap, a peer-to-peer platform that allows users to transfer USDC between Stellar wallet addresses through escrow-secured transactions. Powered by the Stellar Network and integrated with the Trustless Work API, SafeSwap ensures every transfer is transparent, trustless, and protected by smart contracts.

🚀 Features

  • P2P USDC Transfers: Send USDC directly to any Stellar wallet address in a secure, peer-to-peer flow.
  • Escrow-Protected Transactions: Funds are held in Stellar escrow contracts and only released when both parties fulfill the agreed conditions.
  • Trustless by Design: No central authority controls the process — smart contracts on Stellar handle every step automatically.
  • Trustless Work API: Manages escrow creation, funding, completion, and dispute resolution.
  • Fast & Low-Cost: Built on Stellar for near-instant settlement with minimal transaction fees.

🛠️ Technology Stack

  • P2P App: Next.js, Tailwind CSS v4, shadcn/ui
  • Backend (legacy): NestJS, GraphQL (Apollo Server), Prisma
  • Blockchain: Stellar Network
  • API: Trustless Work API for escrow smart contract management
  • Database: PostgreSQL, Supabase

🔑 How It Works

The UI is intentionally minimal — no unnecessary steps, no friction.

  1. Browse Listings: Users see a simple list of people who want to buy or sell USDC. Each listing shows the amount, direction (buy/sell), and the user's Stellar wallet address.
  2. Match & Connect: A user picks a counterpart from the list whose offer matches their need.
  3. Initiate the Transfer: Both parties agree on the amount. An escrow contract is created via the Trustless Work API, locking the USDC on the Stellar blockchain.
  4. Fund the Escrow: The sender deposits the USDC into the escrow contract.
  5. Release: Once both parties confirm, the contract releases the funds to the recipient's Stellar wallet automatically.
  6. Dispute Resolution: If something goes wrong, either party can open a dispute handled by the escrow contract.

📄 Usage

Prerequisites

  • Node.js version 20 or higher

  • npm version 10.9.2 or higher

    • To check your installed npm version:

      npm -v

    • To globally install or update npm:

      npm install -g npm@10.9.2

Installation

  1. Clone the Repository:

    git clone https://github.com/your-username/SafeSwap.git
cd SafeSwap

  2. Install Dependencies:

    npm install

  3. Environment Variables:

    Copy .env.example to .env.local in the relevant app folder and fill in your values:

    cp p2p-safe-swap/.env.local p2p-safe-swap/.env.local

    Required variables:

    • NEXT_PUBLIC_SUPABASE_URL — your Supabase project URL
    • NEXT_PUBLIC_SUPABASE_ANON_KEY — your Supabase anon key
    • SUPABASE_SERVICE_ROLE_KEY — your Supabase service role key (server-side only)
    • TRUSTLESS_WORK_API_KEY — your Trustless Work API key (server-side only)

    Full Supabase setup (projects, CLI, and client wrappers) is documented in docs/SUPABASE-SETUP.md.

Running Supabase migrations locally

The repo ships Supabase CLI configuration in supabase/config.toml with migrations in supabase/migrations/ and a local dev seed in supabase/seed.sql.

  1. Install the Supabase CLI.

  2. Start the local stack and apply all migrations + seed:

    supabase start
supabase db reset

    Or from the app folder: npm run db:reset.

  3. Push migrations to a linked remote project (dev/prod) with supabase db push.

See docs/SUPABASE-SETUP.md for CLI linking, environment variables, and the browser/server client wrappers.

Available Commands

  • npm run dev — Starts all applications in development mode.
  • npm run build — Builds all applications for production.

Running Specific Applications

Run individual applications directly from the root directory:

  1. P2P App:

    cd p2p-safe-swap
    npm run dev

Applications in the Monorepo

AppDescriptionPath
p2p-safe-swapP2P USDC transfer app built with Next.js 16 and Tailwind v4p2p-safe-swap/

📚 Documentation

🤝 Contributing

We appreciate and welcome contributions! Please review our CONTRIBUTING GUIDELINES and GIT GUIDELINES before submitting a PR.

🧑‍💻 Authors

Daniel Calderón Díaz
Daniel Calderón Díaz
GitHub 		Diego Duarte Fernández
Diego Duarte Fernández
GitHub

📜 License

This project is licensed under the MIT License - see the LICENSE file for details.

About

A safe marketplace for buyers and sellers

safe-swap-landing.vercel.app/

Topics

blockchainp2pp2p-chatsafeswapstellar

Resources

Readme
MIT license
Activity
Custom properties

Stars

25 stars

Watchers

6 watching

Forks

104 forks
Report repository

Releases

Packages

Used by

Contributors

Languages

, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all 
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

Skip to content
BranchesTags
Repository files navigation
SAFESWAP LOGO_ON RICH BLACK
SafeSwap
P2P USDC Transfers on Stellar
Welcome to SafeSwap, a peer-to-peer platform that allows users to transfer USDC between Stellar wallet addresses through escrow-secured transactions. Powered by the Stellar Network and integrated with the Trustless Work API, SafeSwap ensures every transfer is transparent, trustless, and protected by smart contracts.
🚀 Features
  • P2P USDC Transfers: Send USDC directly to any Stellar wallet address in a secure, peer-to-peer flow.
  • Escrow-Protected Transactions: Funds are held in Stellar escrow contracts and only released when both parties fulfill the agreed conditions.
  • Trustless by Design: No central authority controls the process — smart contracts on Stellar handle every step automatically.
  • Trustless Work API: Manages escrow creation, funding, completion, and dispute resolution.
  • Fast & Low-Cost: Built on Stellar for near-instant settlement with minimal transaction fees.
🛠️ Technology Stack
  • P2P App: Next.js, Tailwind CSS v4, shadcn/ui
  • Backend (legacy): NestJS, GraphQL (Apollo Server), Prisma
  • Blockchain: Stellar Network
  • API: Trustless Work API for escrow smart contract management
  • Database: PostgreSQL, Supabase
🔑 How It Works
The UI is intentionally minimal — no unnecessary steps, no friction.
  1. Browse Listings: Users see a simple list of people who want to buy or sell USDC. Each listing shows the amount, direction (buy/sell), and the user's Stellar wallet address.
  2. Match & Connect: A user picks a counterpart from the list whose offer matches their need.
  3. Initiate the Transfer: Both parties agree on the amount. An escrow contract is created via the Trustless Work API, locking the USDC on the Stellar blockchain.
  4. Fund the Escrow: The sender deposits the USDC into the escrow contract.
  5. Release: Once both parties confirm, the contract releases the funds to the recipient's Stellar wallet automatically.
  6. Dispute Resolution: If something goes wrong, either party can open a dispute handled by the escrow contract.
📄 Usage
Prerequisites
  • Node.js version 20 or higher
  • npm version 10.9.2 or higher
    • To check your installed npm version:
      npm -v
    • To globally install or update npm:
      npm install -g npm@10.9.2
Installation
  1. Clone the Repository:
    git clone https://github.com/your-username/SafeSwap.git
cd SafeSwap
  2. Install Dependencies:
    npm install
  3. Environment Variables:
    Copy .env.example to .env.local in the relevant app folder and fill in your values:
    cp p2p-safe-swap/.env.local p2p-safe-swap/.env.local
    Required variables:
    • NEXT_PUBLIC_SUPABASE_URL — your Supabase project URL
    • NEXT_PUBLIC_SUPABASE_ANON_KEY — your Supabase anon key
    • SUPABASE_SERVICE_ROLE_KEY — your Supabase service role key (server-side only)
    • TRUSTLESS_WORK_API_KEY — your Trustless Work API key (server-side only)
    Full Supabase setup (projects, CLI, and client wrappers) is documented in
docs/SUPABASE-SETUP.md.
Running Supabase migrations locally
The repo ships Supabase CLI configuration in supabase/config.toml with
migrations in supabase/migrations/ and a local dev seed in
supabase/seed.sql.
  1. Install the Supabase CLI.
  2. Start the local stack and apply all migrations + seed:
    supabase start
supabase db reset
    Or from the app folder: npm run db:reset.
  3. Push migrations to a linked remote project (dev/prod) with
supabase db push.
See docs/SUPABASE-SETUP.md for CLI linking,
environment variables, and the browser/server client wrappers.
Available Commands
  • npm run dev — Starts all applications in development mode.
  • npm run build — Builds all applications for production.
Running Specific Applications
Run individual applications directly from the root directory:
  1. P2P App:
    cd p2p-safe-swap
    npm run dev
Applications in the Monorepo
AppDescriptionPath
p2p-safe-swapP2P USDC transfer app built with Next.js 16 and Tailwind v4p2p-safe-swap/
📚 Documentation
🤝 Contributing
We appreciate and welcome contributions! Please review our CONTRIBUTING GUIDELINES and GIT GUIDELINES before submitting a PR.
🧑‍💻 Authors
Daniel Calderón Díaz
Daniel Calderón Díaz

GitHub
Diego Duarte Fernández
Diego Duarte Fernández

GitHub

📜 License
This project is licensed under the MIT License - see the LICENSE file for details.
About
A safe marketplace for buyers and sellers
safe-swap-landing.vercel.app/
Topics
blockchainp2pp2p-chatsafeswapstellar
Resources
Readme
MIT license
Activity
Custom properties
Stars
25 stars
Watchers
6 watching
Forks
104 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix");
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
Repository files navigation
SAFESWAP LOGO_ON RICH BLACK
SafeSwap
P2P USDC Transfers on Stellar
Welcome to SafeSwap, a peer-to-peer platform that allows users to transfer USDC between Stellar wallet addresses through escrow-secured transactions. Powered by the Stellar Network and integrated with the Trustless Work API, SafeSwap ensures every transfer is transparent, trustless, and protected by smart contracts.
🚀 Features
  • P2P USDC Transfers: Send USDC directly to any Stellar wallet address in a secure, peer-to-peer flow.
  • Escrow-Protected Transactions: Funds are held in Stellar escrow contracts and only released when both parties fulfill the agreed conditions.
  • Trustless by Design: No central authority controls the process — smart contracts on Stellar handle every step automatically.
  • Trustless Work API: Manages escrow creation, funding, completion, and dispute resolution.
  • Fast & Low-Cost: Built on Stellar for near-instant settlement with minimal transaction fees.
🛠️ Technology Stack
  • P2P App: Next.js, Tailwind CSS v4, shadcn/ui
  • Backend (legacy): NestJS, GraphQL (Apollo Server), Prisma
  • Blockchain: Stellar Network
  • API: Trustless Work API for escrow smart contract management
  • Database: PostgreSQL, Supabase
🔑 How It Works
The UI is intentionally minimal — no unnecessary steps, no friction.
  1. Browse Listings: Users see a simple list of people who want to buy or sell USDC. Each listing shows the amount, direction (buy/sell), and the user's Stellar wallet address.
  2. Match & Connect: A user picks a counterpart from the list whose offer matches their need.
  3. Initiate the Transfer: Both parties agree on the amount. An escrow contract is created via the Trustless Work API, locking the USDC on the Stellar blockchain.
  4. Fund the Escrow: The sender deposits the USDC into the escrow contract.
  5. Release: Once both parties confirm, the contract releases the funds to the recipient's Stellar wallet automatically.
  6. Dispute Resolution: If something goes wrong, either party can open a dispute handled by the escrow contract.
📄 Usage
Prerequisites
  • Node.js version 20 or higher
  • npm version 10.9.2 or higher
    • To check your installed npm version:
      npm -v
    • To globally install or update npm:
      npm install -g npm@10.9.2
Installation
  1. Clone the Repository:
    git clone https://github.com/your-username/SafeSwap.git
cd SafeSwap
  2. Install Dependencies:
    npm install
  3. Environment Variables:
    Copy .env.example to .env.local in the relevant app folder and fill in your values:
    cp p2p-safe-swap/.env.local p2p-safe-swap/.env.local
    Required variables:
    • NEXT_PUBLIC_SUPABASE_URL — your Supabase project URL
    • NEXT_PUBLIC_SUPABASE_ANON_KEY — your Supabase anon key
    • SUPABASE_SERVICE_ROLE_KEY — your Supabase service role key (server-side only)
    • TRUSTLESS_WORK_API_KEY — your Trustless Work API key (server-side only)
    Full Supabase setup (projects, CLI, and client wrappers) is documented in
docs/SUPABASE-SETUP.md.
Running Supabase migrations locally
The repo ships Supabase CLI configuration in supabase/config.toml with
migrations in supabase/migrations/ and a local dev seed in
supabase/seed.sql.
  1. Install the Supabase CLI.
  2. Start the local stack and apply all migrations + seed:
    supabase start
supabase db reset
    Or from the app folder: npm run db:reset.
  3. Push migrations to a linked remote project (dev/prod) with
supabase db push.
See docs/SUPABASE-SETUP.md for CLI linking,
environment variables, and the browser/server client wrappers.
Available Commands
  • npm run dev — Starts all applications in development mode.
  • npm run build — Builds all applications for production.
Running Specific Applications
Run individual applications directly from the root directory:
  1. P2P App:
    cd p2p-safe-swap
    npm run dev
Applications in the Monorepo
AppDescriptionPath
p2p-safe-swapP2P USDC transfer app built with Next.js 16 and Tailwind v4p2p-safe-swap/
📚 Documentation
🤝 Contributing
We appreciate and welcome contributions! Please review our CONTRIBUTING GUIDELINES and GIT GUIDELINES before submitting a PR.
🧑‍💻 Authors
Daniel Calderón Díaz
Daniel Calderón Díaz

GitHub
Diego Duarte Fernández
Diego Duarte Fernández

GitHub

📜 License
This project is licensed under the MIT License - see the LICENSE file for details.
About
A safe marketplace for buyers and sellers
safe-swap-landing.vercel.app/
Topics
blockchainp2pp2p-chatsafeswapstellar
Resources
Readme
MIT license
Activity
Custom properties
Stars
25 stars
Watchers
6 watching
Forks
104 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms");
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
Repository files navigation
SAFESWAP LOGO_ON RICH BLACK
SafeSwap
P2P USDC Transfers on Stellar
Welcome to SafeSwap, a peer-to-peer platform that allows users to transfer USDC between Stellar wallet addresses through escrow-secured transactions. Powered by the Stellar Network and integrated with the Trustless Work API, SafeSwap ensures every transfer is transparent, trustless, and protected by smart contracts.
🚀 Features
  • P2P USDC Transfers: Send USDC directly to any Stellar wallet address in a secure, peer-to-peer flow.
  • Escrow-Protected Transactions: Funds are held in Stellar escrow contracts and only released when both parties fulfill the agreed conditions.
  • Trustless by Design: No central authority controls the process — smart contracts on Stellar handle every step automatically.
  • Trustless Work API: Manages escrow creation, funding, completion, and dispute resolution.
  • Fast & Low-Cost: Built on Stellar for near-instant settlement with minimal transaction fees.
🛠️ Technology Stack
  • P2P App: Next.js, Tailwind CSS v4, shadcn/ui
  • Backend (legacy): NestJS, GraphQL (Apollo Server), Prisma
  • Blockchain: Stellar Network
  • API: Trustless Work API for escrow smart contract management
  • Database: PostgreSQL, Supabase
🔑 How It Works
The UI is intentionally minimal — no unnecessary steps, no friction.
  1. Browse Listings: Users see a simple list of people who want to buy or sell USDC. Each listing shows the amount, direction (buy/sell), and the user's Stellar wallet address.
  2. Match & Connect: A user picks a counterpart from the list whose offer matches their need.
  3. Initiate the Transfer: Both parties agree on the amount. An escrow contract is created via the Trustless Work API, locking the USDC on the Stellar blockchain.
  4. Fund the Escrow: The sender deposits the USDC into the escrow contract.
  5. Release: Once both parties confirm, the contract releases the funds to the recipient's Stellar wallet automatically.
  6. Dispute Resolution: If something goes wrong, either party can open a dispute handled by the escrow contract.
📄 Usage
Prerequisites
  • Node.js version 20 or higher
  • npm version 10.9.2 or higher
    • To check your installed npm version:
      npm -v
    • To globally install or update npm:
      npm install -g npm@10.9.2
Installation
  1. Clone the Repository:
    git clone https://github.com/your-username/SafeSwap.git
cd SafeSwap
  2. Install Dependencies:
    npm install
  3. Environment Variables:
    Copy .env.example to .env.local in the relevant app folder and fill in your values:
    cp p2p-safe-swap/.env.local p2p-safe-swap/.env.local
    Required variables:
    • NEXT_PUBLIC_SUPABASE_URL — your Supabase project URL
    • NEXT_PUBLIC_SUPABASE_ANON_KEY — your Supabase anon key
    • SUPABASE_SERVICE_ROLE_KEY — your Supabase service role key (server-side only)
    • TRUSTLESS_WORK_API_KEY — your Trustless Work API key (server-side only)
    Full Supabase setup (projects, CLI, and client wrappers) is documented in
docs/SUPABASE-SETUP.md.
Running Supabase migrations locally
The repo ships Supabase CLI configuration in supabase/config.toml with
migrations in supabase/migrations/ and a local dev seed in
supabase/seed.sql.
  1. Install the Supabase CLI.
  2. Start the local stack and apply all migrations + seed:
    supabase start
supabase db reset
    Or from the app folder: npm run db:reset.
  3. Push migrations to a linked remote project (dev/prod) with
supabase db push.
See docs/SUPABASE-SETUP.md for CLI linking,
environment variables, and the browser/server client wrappers.
Available Commands
  • npm run dev — Starts all applications in development mode.
  • npm run build — Builds all applications for production.
Running Specific Applications
Run individual applications directly from the root directory:
  1. P2P App:
    cd p2p-safe-swap
    npm run dev
Applications in the Monorepo
AppDescriptionPath
p2p-safe-swapP2P USDC transfer app built with Next.js 16 and Tailwind v4p2p-safe-swap/
📚 Documentation
🤝 Contributing
We appreciate and welcome contributions! Please review our CONTRIBUTING GUIDELINES and GIT GUIDELINES before submitting a PR.
🧑‍💻 Authors
Daniel Calderón Díaz
Daniel Calderón Díaz

GitHub
Diego Duarte Fernández
Diego Duarte Fernández

GitHub

📜 License
This project is licensed under the MIT License - see the LICENSE file for details.
About
A safe marketplace for buyers and sellers
safe-swap-landing.vercel.app/
Topics
blockchainp2pp2p-chatsafeswapstellar
Resources
Readme
MIT license
Activity
Custom properties
Stars
25 stars
Watchers
6 watching
Forks
104 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links");
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

Skip to content
BranchesTags
Repository files navigation
SAFESWAP LOGO_ON RICH BLACK
SafeSwap
P2P USDC Transfers on Stellar
Welcome to SafeSwap, a peer-to-peer platform that allows users to transfer USDC between Stellar wallet addresses through escrow-secured transactions. Powered by the Stellar Network and integrated with the Trustless Work API, SafeSwap ensures every transfer is transparent, trustless, and protected by smart contracts.
🚀 Features
  • P2P USDC Transfers: Send USDC directly to any Stellar wallet address in a secure, peer-to-peer flow.
  • Escrow-Protected Transactions: Funds are held in Stellar escrow contracts and only released when both parties fulfill the agreed conditions.
  • Trustless by Design: No central authority controls the process — smart contracts on Stellar handle every step automatically.
  • Trustless Work API: Manages escrow creation, funding, completion, and dispute resolution.
  • Fast & Low-Cost: Built on Stellar for near-instant settlement with minimal transaction fees.
🛠️ Technology Stack
  • P2P App: Next.js, Tailwind CSS v4, shadcn/ui
  • Backend (legacy): NestJS, GraphQL (Apollo Server), Prisma
  • Blockchain: Stellar Network
  • API: Trustless Work API for escrow smart contract management
  • Database: PostgreSQL, Supabase
🔑 How It Works
The UI is intentionally minimal — no unnecessary steps, no friction.
  1. Browse Listings: Users see a simple list of people who want to buy or sell USDC. Each listing shows the amount, direction (buy/sell), and the user's Stellar wallet address.
  2. Match & Connect: A user picks a counterpart from the list whose offer matches their need.
  3. Initiate the Transfer: Both parties agree on the amount. An escrow contract is created via the Trustless Work API, locking the USDC on the Stellar blockchain.
  4. Fund the Escrow: The sender deposits the USDC into the escrow contract.
  5. Release: Once both parties confirm, the contract releases the funds to the recipient's Stellar wallet automatically.
  6. Dispute Resolution: If something goes wrong, either party can open a dispute handled by the escrow contract.
📄 Usage
Prerequisites
  • Node.js version 20 or higher
  • npm version 10.9.2 or higher
    • To check your installed npm version:
      npm -v
    • To globally install or update npm:
      npm install -g npm@10.9.2
Installation
  1. Clone the Repository:
    git clone https://github.com/your-username/SafeSwap.git
cd SafeSwap
  2. Install Dependencies:
    npm install
  3. Environment Variables:
    Copy .env.example to .env.local in the relevant app folder and fill in your values:
    cp p2p-safe-swap/.env.local p2p-safe-swap/.env.local
    Required variables:
    • NEXT_PUBLIC_SUPABASE_URL — your Supabase project URL
    • NEXT_PUBLIC_SUPABASE_ANON_KEY — your Supabase anon key
    • SUPABASE_SERVICE_ROLE_KEY — your Supabase service role key (server-side only)
    • TRUSTLESS_WORK_API_KEY — your Trustless Work API key (server-side only)
    Full Supabase setup (projects, CLI, and client wrappers) is documented in
docs/SUPABASE-SETUP.md.
Running Supabase migrations locally
The repo ships Supabase CLI configuration in supabase/config.toml with
migrations in supabase/migrations/ and a local dev seed in
supabase/seed.sql.
  1. Install the Supabase CLI.
  2. Start the local stack and apply all migrations + seed:
    supabase start
supabase db reset
    Or from the app folder: npm run db:reset.
  3. Push migrations to a linked remote project (dev/prod) with
supabase db push.
See docs/SUPABASE-SETUP.md for CLI linking,
environment variables, and the browser/server client wrappers.
Available Commands
  • npm run dev — Starts all applications in development mode.
  • npm run build — Builds all applications for production.
Running Specific Applications
Run individual applications directly from the root directory:
  1. P2P App:
    cd p2p-safe-swap
    npm run dev
Applications in the Monorepo
AppDescriptionPath
p2p-safe-swapP2P USDC transfer app built with Next.js 16 and Tailwind v4p2p-safe-swap/
📚 Documentation
🤝 Contributing
We appreciate and welcome contributions! Please review our CONTRIBUTING GUIDELINES and GIT GUIDELINES before submitting a PR.
🧑‍💻 Authors
Daniel Calderón Díaz
Daniel Calderón Díaz

GitHub
Diego Duarte Fernández
Diego Duarte Fernández

GitHub

📜 License
This project is licensed under the MIT License - see the LICENSE file for details.
About
A safe marketplace for buyers and sellers
safe-swap-landing.vercel.app/
Topics
blockchainp2pp2p-chatsafeswapstellar
Resources
Readme
MIT license
Activity
Custom properties
Stars
25 stars
Watchers
6 watching
Forks
104 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default");
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
Repository files navigation
SAFESWAP LOGO_ON RICH BLACK
SafeSwap
P2P USDC Transfers on Stellar
Welcome to SafeSwap, a peer-to-peer platform that allows users to transfer USDC between Stellar wallet addresses through escrow-secured transactions. Powered by the Stellar Network and integrated with the Trustless Work API, SafeSwap ensures every transfer is transparent, trustless, and protected by smart contracts.
🚀 Features
  • P2P USDC Transfers: Send USDC directly to any Stellar wallet address in a secure, peer-to-peer flow.
  • Escrow-Protected Transactions: Funds are held in Stellar escrow contracts and only released when both parties fulfill the agreed conditions.
  • Trustless by Design: No central authority controls the process — smart contracts on Stellar handle every step automatically.
  • Trustless Work API: Manages escrow creation, funding, completion, and dispute resolution.
  • Fast & Low-Cost: Built on Stellar for near-instant settlement with minimal transaction fees.
🛠️ Technology Stack
  • P2P App: Next.js, Tailwind CSS v4, shadcn/ui
  • Backend (legacy): NestJS, GraphQL (Apollo Server), Prisma
  • Blockchain: Stellar Network
  • API: Trustless Work API for escrow smart contract management
  • Database: PostgreSQL, Supabase
🔑 How It Works
The UI is intentionally minimal — no unnecessary steps, no friction.
  1. Browse Listings: Users see a simple list of people who want to buy or sell USDC. Each listing shows the amount, direction (buy/sell), and the user's Stellar wallet address.
  2. Match & Connect: A user picks a counterpart from the list whose offer matches their need.
  3. Initiate the Transfer: Both parties agree on the amount. An escrow contract is created via the Trustless Work API, locking the USDC on the Stellar blockchain.
  4. Fund the Escrow: The sender deposits the USDC into the escrow contract.
  5. Release: Once both parties confirm, the contract releases the funds to the recipient's Stellar wallet automatically.
  6. Dispute Resolution: If something goes wrong, either party can open a dispute handled by the escrow contract.
📄 Usage
Prerequisites
  • Node.js version 20 or higher
  • npm version 10.9.2 or higher
    • To check your installed npm version:
      npm -v
    • To globally install or update npm:
      npm install -g npm@10.9.2
Installation
  1. Clone the Repository:
    git clone https://github.com/your-username/SafeSwap.git
cd SafeSwap
  2. Install Dependencies:
    npm install
  3. Environment Variables:
    Copy .env.example to .env.local in the relevant app folder and fill in your values:
    cp p2p-safe-swap/.env.local p2p-safe-swap/.env.local
    Required variables:
    • NEXT_PUBLIC_SUPABASE_URL — your Supabase project URL
    • NEXT_PUBLIC_SUPABASE_ANON_KEY — your Supabase anon key
    • SUPABASE_SERVICE_ROLE_KEY — your Supabase service role key (server-side only)
    • TRUSTLESS_WORK_API_KEY — your Trustless Work API key (server-side only)
    Full Supabase setup (projects, CLI, and client wrappers) is documented in
docs/SUPABASE-SETUP.md.
Running Supabase migrations locally
The repo ships Supabase CLI configuration in supabase/config.toml with
migrations in supabase/migrations/ and a local dev seed in
supabase/seed.sql.
  1. Install the Supabase CLI.
  2. Start the local stack and apply all migrations + seed:
    supabase start
supabase db reset
    Or from the app folder: npm run db:reset.
  3. Push migrations to a linked remote project (dev/prod) with
supabase db push.
See docs/SUPABASE-SETUP.md for CLI linking,
environment variables, and the browser/server client wrappers.
Available Commands
  • npm run dev — Starts all applications in development mode.
  • npm run build — Builds all applications for production.
Running Specific Applications
Run individual applications directly from the root directory:
  1. P2P App:
    cd p2p-safe-swap
    npm run dev
Applications in the Monorepo
AppDescriptionPath
p2p-safe-swapP2P USDC transfer app built with Next.js 16 and Tailwind v4p2p-safe-swap/
📚 Documentation
🤝 Contributing
We appreciate and welcome contributions! Please review our CONTRIBUTING GUIDELINES and GIT GUIDELINES before submitting a PR.
🧑‍💻 Authors
Daniel Calderón Díaz
Daniel Calderón Díaz

GitHub
Diego Duarte Fernández
Diego Duarte Fernández

GitHub

📜 License
This project is licensed under the MIT License - see the LICENSE file for details.
About
A safe marketplace for buyers and sellers
safe-swap-landing.vercel.app/
Topics
blockchainp2pp2p-chatsafeswapstellar
Resources
Readme
MIT license
Activity
Custom properties
Stars
25 stars
Watchers
6 watching
Forks
104 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers");
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
Repository files navigation
SAFESWAP LOGO_ON RICH BLACK
SafeSwap
P2P USDC Transfers on Stellar
Welcome to SafeSwap, a peer-to-peer platform that allows users to transfer USDC between Stellar wallet addresses through escrow-secured transactions. Powered by the Stellar Network and integrated with the Trustless Work API, SafeSwap ensures every transfer is transparent, trustless, and protected by smart contracts.
🚀 Features
  • P2P USDC Transfers: Send USDC directly to any Stellar wallet address in a secure, peer-to-peer flow.
  • Escrow-Protected Transactions: Funds are held in Stellar escrow contracts and only released when both parties fulfill the agreed conditions.
  • Trustless by Design: No central authority controls the process — smart contracts on Stellar handle every step automatically.
  • Trustless Work API: Manages escrow creation, funding, completion, and dispute resolution.
  • Fast & Low-Cost: Built on Stellar for near-instant settlement with minimal transaction fees.
🛠️ Technology Stack
  • P2P App: Next.js, Tailwind CSS v4, shadcn/ui
  • Backend (legacy): NestJS, GraphQL (Apollo Server), Prisma
  • Blockchain: Stellar Network
  • API: Trustless Work API for escrow smart contract management
  • Database: PostgreSQL, Supabase
🔑 How It Works
The UI is intentionally minimal — no unnecessary steps, no friction.
  1. Browse Listings: Users see a simple list of people who want to buy or sell USDC. Each listing shows the amount, direction (buy/sell), and the user's Stellar wallet address.
  2. Match & Connect: A user picks a counterpart from the list whose offer matches their need.
  3. Initiate the Transfer: Both parties agree on the amount. An escrow contract is created via the Trustless Work API, locking the USDC on the Stellar blockchain.
  4. Fund the Escrow: The sender deposits the USDC into the escrow contract.
  5. Release: Once both parties confirm, the contract releases the funds to the recipient's Stellar wallet automatically.
  6. Dispute Resolution: If something goes wrong, either party can open a dispute handled by the escrow contract.
📄 Usage
Prerequisites
  • Node.js version 20 or higher
  • npm version 10.9.2 or higher
    • To check your installed npm version:
      npm -v
    • To globally install or update npm:
      npm install -g npm@10.9.2
Installation
  1. Clone the Repository:
    git clone https://github.com/your-username/SafeSwap.git
cd SafeSwap
  2. Install Dependencies:
    npm install
  3. Environment Variables:
    Copy .env.example to .env.local in the relevant app folder and fill in your values:
    cp p2p-safe-swap/.env.local p2p-safe-swap/.env.local
    Required variables:
    • NEXT_PUBLIC_SUPABASE_URL — your Supabase project URL
    • NEXT_PUBLIC_SUPABASE_ANON_KEY — your Supabase anon key
    • SUPABASE_SERVICE_ROLE_KEY — your Supabase service role key (server-side only)
    • TRUSTLESS_WORK_API_KEY — your Trustless Work API key (server-side only)
    Full Supabase setup (projects, CLI, and client wrappers) is documented in
docs/SUPABASE-SETUP.md.
Running Supabase migrations locally
The repo ships Supabase CLI configuration in supabase/config.toml with
migrations in supabase/migrations/ and a local dev seed in
supabase/seed.sql.
  1. Install the Supabase CLI.
  2. Start the local stack and apply all migrations + seed:
    supabase start
supabase db reset
    Or from the app folder: npm run db:reset.
  3. Push migrations to a linked remote project (dev/prod) with
supabase db push.
See docs/SUPABASE-SETUP.md for CLI linking,
environment variables, and the browser/server client wrappers.
Available Commands
  • npm run dev — Starts all applications in development mode.
  • npm run build — Builds all applications for production.
Running Specific Applications
Run individual applications directly from the root directory:
  1. P2P App:
    cd p2p-safe-swap
    npm run dev
Applications in the Monorepo
AppDescriptionPath
p2p-safe-swapP2P USDC transfer app built with Next.js 16 and Tailwind v4p2p-safe-swap/
📚 Documentation
🤝 Contributing
We appreciate and welcome contributions! Please review our CONTRIBUTING GUIDELINES and GIT GUIDELINES before submitting a PR.
🧑‍💻 Authors
Daniel Calderón Díaz
Daniel Calderón Díaz

GitHub
Diego Duarte Fernández
Diego Duarte Fernández

GitHub

📜 License
This project is licensed under the MIT License - see the LICENSE file for details.
About
A safe marketplace for buyers and sellers
safe-swap-landing.vercel.app/
Topics
blockchainp2pp2p-chatsafeswapstellar
Resources
Readme
MIT license
Activity
Custom properties
Stars
25 stars
Watchers
6 watching
Forks
104 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode");
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

Skip to content
BranchesTags
Repository files navigation
SAFESWAP LOGO_ON RICH BLACK
SafeSwap
P2P USDC Transfers on Stellar
Welcome to SafeSwap, a peer-to-peer platform that allows users to transfer USDC between Stellar wallet addresses through escrow-secured transactions. Powered by the Stellar Network and integrated with the Trustless Work API, SafeSwap ensures every transfer is transparent, trustless, and protected by smart contracts.
🚀 Features
  • P2P USDC Transfers: Send USDC directly to any Stellar wallet address in a secure, peer-to-peer flow.
  • Escrow-Protected Transactions: Funds are held in Stellar escrow contracts and only released when both parties fulfill the agreed conditions.
  • Trustless by Design: No central authority controls the process — smart contracts on Stellar handle every step automatically.
  • Trustless Work API: Manages escrow creation, funding, completion, and dispute resolution.
  • Fast & Low-Cost: Built on Stellar for near-instant settlement with minimal transaction fees.
🛠️ Technology Stack
  • P2P App: Next.js, Tailwind CSS v4, shadcn/ui
  • Backend (legacy): NestJS, GraphQL (Apollo Server), Prisma
  • Blockchain: Stellar Network
  • API: Trustless Work API for escrow smart contract management
  • Database: PostgreSQL, Supabase
🔑 How It Works
The UI is intentionally minimal — no unnecessary steps, no friction.
  1. Browse Listings: Users see a simple list of people who want to buy or sell USDC. Each listing shows the amount, direction (buy/sell), and the user's Stellar wallet address.
  2. Match & Connect: A user picks a counterpart from the list whose offer matches their need.
  3. Initiate the Transfer: Both parties agree on the amount. An escrow contract is created via the Trustless Work API, locking the USDC on the Stellar blockchain.
  4. Fund the Escrow: The sender deposits the USDC into the escrow contract.
  5. Release: Once both parties confirm, the contract releases the funds to the recipient's Stellar wallet automatically.
  6. Dispute Resolution: If something goes wrong, either party can open a dispute handled by the escrow contract.
📄 Usage
Prerequisites
  • Node.js version 20 or higher
  • npm version 10.9.2 or higher
    • To check your installed npm version:
      npm -v
    • To globally install or update npm:
      npm install -g npm@10.9.2
Installation
  1. Clone the Repository:
    git clone https://github.com/your-username/SafeSwap.git
cd SafeSwap
  2. Install Dependencies:
    npm install
  3. Environment Variables:
    Copy .env.example to .env.local in the relevant app folder and fill in your values:
    cp p2p-safe-swap/.env.local p2p-safe-swap/.env.local
    Required variables:
    • NEXT_PUBLIC_SUPABASE_URL — your Supabase project URL
    • NEXT_PUBLIC_SUPABASE_ANON_KEY — your Supabase anon key
    • SUPABASE_SERVICE_ROLE_KEY — your Supabase service role key (server-side only)
    • TRUSTLESS_WORK_API_KEY — your Trustless Work API key (server-side only)
    Full Supabase setup (projects, CLI, and client wrappers) is documented in
docs/SUPABASE-SETUP.md.
Running Supabase migrations locally
The repo ships Supabase CLI configuration in supabase/config.toml with
migrations in supabase/migrations/ and a local dev seed in
supabase/seed.sql.
  1. Install the Supabase CLI.
  2. Start the local stack and apply all migrations + seed:
    supabase start
supabase db reset
    Or from the app folder: npm run db:reset.
  3. Push migrations to a linked remote project (dev/prod) with
supabase db push.
See docs/SUPABASE-SETUP.md for CLI linking,
environment variables, and the browser/server client wrappers.
Available Commands
  • npm run dev — Starts all applications in development mode.
  • npm run build — Builds all applications for production.
Running Specific Applications
Run individual applications directly from the root directory:
  1. P2P App:
    cd p2p-safe-swap
    npm run dev
Applications in the Monorepo
AppDescriptionPath
p2p-safe-swapP2P USDC transfer app built with Next.js 16 and Tailwind v4p2p-safe-swap/
📚 Documentation
🤝 Contributing
We appreciate and welcome contributions! Please review our CONTRIBUTING GUIDELINES and GIT GUIDELINES before submitting a PR.
🧑‍💻 Authors
Daniel Calderón Díaz
Daniel Calderón Díaz

GitHub
Diego Duarte Fernández
Diego Duarte Fernández

GitHub

📜 License
This project is licensed under the MIT License - see the LICENSE file for details.
About
A safe marketplace for buyers and sellers
safe-swap-landing.vercel.app/
Topics
blockchainp2pp2p-chatsafeswapstellar
Resources
Readme
MIT license
Activity
Custom properties
Stars
25 stars
Watchers
6 watching
Forks
104 forks
Report repository
Releases
Packages
Used by
Contributors
Languages