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AgentStack — GPT (OpenAI) integration

Integration of AgentStack with ChatGPT via GPT Actions: use a Custom GPT to create projects, manage API keys, get stats, and call one MCP tool (agentstack.execute) whose current actions come from the live /mcp/actions catalog.

AgentStack is a full backend ecosystem: 8DNA hierarchical data, Rules Engine, Buffs (trials/subscriptions), Payments, and MCP tools for Projects, Auth, Scheduler, Analytics, Webhooks, Notifications, and Wallets.

What’s in this repo

ItemDescription
OpenAPI schemaopenapi/agentstack-mcp.yaml — one action (execute MCP tool) for GPT Actions; supports API Key and OAuth2 auth modes.
InstructionsGPT_INSTRUCTIONS.md — copy into your Custom GPT Instructions field.
Quick StartGPT_QUICKSTART.md — get API key, create Custom GPT, add Action, paste instructions.
Artifact layoutARTIFACTS.md — where each file lives and what it’s for.

Quick Start

  1. Get an API key (anonymous project or account) — see GPT_QUICKSTART.md.
  2. Create a Custom GPT and add an Action with the OpenAPI schema; choose authentication mode:
    • API Key (X-API-Key) for service-style access.
    • OAuth2 (AgentStack as IdP) for end-user sign-in.
  3. Paste the instructions from GPT_INSTRUCTIONS.md.
  4. Use the GPT (e.g. “Create a project called Test”, “List my projects”).

What you can do

With the Custom GPT and Action configured, you can ask for any action exposed by the generated MCP capability matrix via agentstack.execute. Example prompts by domain:

DomainExample prompts
Projects"List my projects", "Get stats for my project", "Create a project named Test"
8DNA / Data"Store project data at key config.theme", "Read user data"
Rules Engine"Create a rule when user signs up", "List logic rules"
Buffs"Give user a 7-day trial", "List active buffs"
Payments"Create a payment", "Get wallet balance"
Auth"Get my profile", "Quick auth with email"
Scheduler, Analytics, Webhooks, Notifications, Wallets"Schedule a task", "Get analytics", "List webhooks"

Full tool list and parameters:MCP Capability Matrix. When to use which tool:CONTEXT_FOR_AI in the AgentStack repo.

Documentation

Links

License

MIT. See LICENSE.

About

AgentStack for ChatGPT: GPT Actions (OpenAPI 3.1) and 60+ MCP tools. Custom GPT setup, API key or OAuth2. 8DNA, Rules, Payments, Buffs.

agentstack.tech

Topics

8dnaagentstackbackendchatgptgptgpt-actionsmcpopenaiopenapi

Resources

Readme
MIT license
Activity

Stars

1 star

Watchers

0 watching

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, '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" + '

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AgentStack — GPT (OpenAI) integration
Integration of AgentStack with ChatGPT via GPT Actions: use a Custom GPT to create projects, manage API keys, get stats, and call one MCP tool (agentstack.execute) whose current actions come from the live /mcp/actions catalog.
AgentStack is a full backend ecosystem: 8DNA hierarchical data, Rules Engine, Buffs (trials/subscriptions), Payments, and MCP tools for Projects, Auth, Scheduler, Analytics, Webhooks, Notifications, and Wallets.
What’s in this repo
ItemDescription
OpenAPI schemaopenapi/agentstack-mcp.yaml — one action (execute MCP tool) for GPT Actions; supports API Key and OAuth2 auth modes.
InstructionsGPT_INSTRUCTIONS.md — copy into your Custom GPT Instructions field.
Quick StartGPT_QUICKSTART.md — get API key, create Custom GPT, add Action, paste instructions.
Artifact layoutARTIFACTS.md — where each file lives and what it’s for.
Quick Start
  1. Get an API key (anonymous project or account) — see GPT_QUICKSTART.md.
  2. Create a Custom GPT and add an Action with the OpenAPI schema; choose authentication mode:

    • API Key (X-API-Key) for service-style access.
    • OAuth2 (AgentStack as IdP) for end-user sign-in.
  3. Paste the instructions from GPT_INSTRUCTIONS.md.
  4. Use the GPT (e.g. “Create a project called Test”, “List my projects”).
What you can do
With the Custom GPT and Action configured, you can ask for any action exposed by the generated MCP capability matrix via agentstack.execute. Example prompts by domain:
DomainExample prompts
Projects"List my projects", "Get stats for my project", "Create a project named Test"
8DNA / Data"Store project data at key config.theme", "Read user data"
Rules Engine"Create a rule when user signs up", "List logic rules"
Buffs"Give user a 7-day trial", "List active buffs"
Payments"Create a payment", "Get wallet balance"
Auth"Get my profile", "Quick auth with email"
Scheduler, Analytics, Webhooks, Notifications, Wallets"Schedule a task", "Get analytics", "List webhooks"
Full tool list and parameters:MCP Capability Matrix. When to use which tool:CONTEXT_FOR_AI in the AgentStack repo.
Documentation
Links
License
MIT. See LICENSE.
About
AgentStack for ChatGPT: GPT Actions (OpenAPI 3.1) and 60+ MCP tools. Custom GPT setup, API key or OAuth2. 8DNA, Rules, Payments, Buffs.
agentstack.tech
Topics
8dnaagentstackbackendchatgptgptgpt-actionsmcpopenaiopenapi
Resources
Readme
MIT license
Activity
Stars
1 star
Watchers
0 watching
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0 forks
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, '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
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AgentStack — GPT (OpenAI) integration
Integration of AgentStack with ChatGPT via GPT Actions: use a Custom GPT to create projects, manage API keys, get stats, and call one MCP tool (agentstack.execute) whose current actions come from the live /mcp/actions catalog.
AgentStack is a full backend ecosystem: 8DNA hierarchical data, Rules Engine, Buffs (trials/subscriptions), Payments, and MCP tools for Projects, Auth, Scheduler, Analytics, Webhooks, Notifications, and Wallets.
What’s in this repo
ItemDescription
OpenAPI schemaopenapi/agentstack-mcp.yaml — one action (execute MCP tool) for GPT Actions; supports API Key and OAuth2 auth modes.
InstructionsGPT_INSTRUCTIONS.md — copy into your Custom GPT Instructions field.
Quick StartGPT_QUICKSTART.md — get API key, create Custom GPT, add Action, paste instructions.
Artifact layoutARTIFACTS.md — where each file lives and what it’s for.
Quick Start
  1. Get an API key (anonymous project or account) — see GPT_QUICKSTART.md.
  2. Create a Custom GPT and add an Action with the OpenAPI schema; choose authentication mode:

    • API Key (X-API-Key) for service-style access.
    • OAuth2 (AgentStack as IdP) for end-user sign-in.
  3. Paste the instructions from GPT_INSTRUCTIONS.md.
  4. Use the GPT (e.g. “Create a project called Test”, “List my projects”).
What you can do
With the Custom GPT and Action configured, you can ask for any action exposed by the generated MCP capability matrix via agentstack.execute. Example prompts by domain:
DomainExample prompts
Projects"List my projects", "Get stats for my project", "Create a project named Test"
8DNA / Data"Store project data at key config.theme", "Read user data"
Rules Engine"Create a rule when user signs up", "List logic rules"
Buffs"Give user a 7-day trial", "List active buffs"
Payments"Create a payment", "Get wallet balance"
Auth"Get my profile", "Quick auth with email"
Scheduler, Analytics, Webhooks, Notifications, Wallets"Schedule a task", "Get analytics", "List webhooks"
Full tool list and parameters:MCP Capability Matrix. When to use which tool:CONTEXT_FOR_AI in the AgentStack repo.
Documentation
Links
License
MIT. See LICENSE.
About
AgentStack for ChatGPT: GPT Actions (OpenAPI 3.1) and 60+ MCP tools. Custom GPT setup, API key or OAuth2. 8DNA, Rules, Payments, Buffs.
agentstack.tech
Topics
8dnaagentstackbackendchatgptgptgpt-actionsmcpopenaiopenapi
Resources
Readme
MIT license
Activity
Stars
1 star
Watchers
0 watching
Forks
0 forks
Report repository
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, '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
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AgentStack — GPT (OpenAI) integration
Integration of AgentStack with ChatGPT via GPT Actions: use a Custom GPT to create projects, manage API keys, get stats, and call one MCP tool (agentstack.execute) whose current actions come from the live /mcp/actions catalog.
AgentStack is a full backend ecosystem: 8DNA hierarchical data, Rules Engine, Buffs (trials/subscriptions), Payments, and MCP tools for Projects, Auth, Scheduler, Analytics, Webhooks, Notifications, and Wallets.
What’s in this repo
ItemDescription
OpenAPI schemaopenapi/agentstack-mcp.yaml — one action (execute MCP tool) for GPT Actions; supports API Key and OAuth2 auth modes.
InstructionsGPT_INSTRUCTIONS.md — copy into your Custom GPT Instructions field.
Quick StartGPT_QUICKSTART.md — get API key, create Custom GPT, add Action, paste instructions.
Artifact layoutARTIFACTS.md — where each file lives and what it’s for.
Quick Start
  1. Get an API key (anonymous project or account) — see GPT_QUICKSTART.md.
  2. Create a Custom GPT and add an Action with the OpenAPI schema; choose authentication mode:

    • API Key (X-API-Key) for service-style access.
    • OAuth2 (AgentStack as IdP) for end-user sign-in.
  3. Paste the instructions from GPT_INSTRUCTIONS.md.
  4. Use the GPT (e.g. “Create a project called Test”, “List my projects”).
What you can do
With the Custom GPT and Action configured, you can ask for any action exposed by the generated MCP capability matrix via agentstack.execute. Example prompts by domain:
DomainExample prompts
Projects"List my projects", "Get stats for my project", "Create a project named Test"
8DNA / Data"Store project data at key config.theme", "Read user data"
Rules Engine"Create a rule when user signs up", "List logic rules"
Buffs"Give user a 7-day trial", "List active buffs"
Payments"Create a payment", "Get wallet balance"
Auth"Get my profile", "Quick auth with email"
Scheduler, Analytics, Webhooks, Notifications, Wallets"Schedule a task", "Get analytics", "List webhooks"
Full tool list and parameters:MCP Capability Matrix. When to use which tool:CONTEXT_FOR_AI in the AgentStack repo.
Documentation
Links
License
MIT. See LICENSE.
About
AgentStack for ChatGPT: GPT Actions (OpenAPI 3.1) and 60+ MCP tools. Custom GPT setup, API key or OAuth2. 8DNA, Rules, Payments, Buffs.
agentstack.tech
Topics
8dnaagentstackbackendchatgptgptgpt-actionsmcpopenaiopenapi
Resources
Readme
MIT license
Activity
Stars
1 star
Watchers
0 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors

, '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" + '

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AgentStack — GPT (OpenAI) integration
Integration of AgentStack with ChatGPT via GPT Actions: use a Custom GPT to create projects, manage API keys, get stats, and call one MCP tool (agentstack.execute) whose current actions come from the live /mcp/actions catalog.
AgentStack is a full backend ecosystem: 8DNA hierarchical data, Rules Engine, Buffs (trials/subscriptions), Payments, and MCP tools for Projects, Auth, Scheduler, Analytics, Webhooks, Notifications, and Wallets.
What’s in this repo
ItemDescription
OpenAPI schemaopenapi/agentstack-mcp.yaml — one action (execute MCP tool) for GPT Actions; supports API Key and OAuth2 auth modes.
InstructionsGPT_INSTRUCTIONS.md — copy into your Custom GPT Instructions field.
Quick StartGPT_QUICKSTART.md — get API key, create Custom GPT, add Action, paste instructions.
Artifact layoutARTIFACTS.md — where each file lives and what it’s for.
Quick Start
  1. Get an API key (anonymous project or account) — see GPT_QUICKSTART.md.
  2. Create a Custom GPT and add an Action with the OpenAPI schema; choose authentication mode:

    • API Key (X-API-Key) for service-style access.
    • OAuth2 (AgentStack as IdP) for end-user sign-in.
  3. Paste the instructions from GPT_INSTRUCTIONS.md.
  4. Use the GPT (e.g. “Create a project called Test”, “List my projects”).
What you can do
With the Custom GPT and Action configured, you can ask for any action exposed by the generated MCP capability matrix via agentstack.execute. Example prompts by domain:
DomainExample prompts
Projects"List my projects", "Get stats for my project", "Create a project named Test"
8DNA / Data"Store project data at key config.theme", "Read user data"
Rules Engine"Create a rule when user signs up", "List logic rules"
Buffs"Give user a 7-day trial", "List active buffs"
Payments"Create a payment", "Get wallet balance"
Auth"Get my profile", "Quick auth with email"
Scheduler, Analytics, Webhooks, Notifications, Wallets"Schedule a task", "Get analytics", "List webhooks"
Full tool list and parameters:MCP Capability Matrix. When to use which tool:CONTEXT_FOR_AI in the AgentStack repo.
Documentation
Links
License
MIT. See LICENSE.
About
AgentStack for ChatGPT: GPT Actions (OpenAPI 3.1) and 60+ MCP tools. Custom GPT setup, API key or OAuth2. 8DNA, Rules, Payments, Buffs.
agentstack.tech
Topics
8dnaagentstackbackendchatgptgptgpt-actionsmcpopenaiopenapi
Resources
Readme
MIT license
Activity
Stars
1 star
Watchers
0 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors

, '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
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AgentStack — GPT (OpenAI) integration
Integration of AgentStack with ChatGPT via GPT Actions: use a Custom GPT to create projects, manage API keys, get stats, and call one MCP tool (agentstack.execute) whose current actions come from the live /mcp/actions catalog.
AgentStack is a full backend ecosystem: 8DNA hierarchical data, Rules Engine, Buffs (trials/subscriptions), Payments, and MCP tools for Projects, Auth, Scheduler, Analytics, Webhooks, Notifications, and Wallets.
What’s in this repo
ItemDescription
OpenAPI schemaopenapi/agentstack-mcp.yaml — one action (execute MCP tool) for GPT Actions; supports API Key and OAuth2 auth modes.
InstructionsGPT_INSTRUCTIONS.md — copy into your Custom GPT Instructions field.
Quick StartGPT_QUICKSTART.md — get API key, create Custom GPT, add Action, paste instructions.
Artifact layoutARTIFACTS.md — where each file lives and what it’s for.
Quick Start
  1. Get an API key (anonymous project or account) — see GPT_QUICKSTART.md.
  2. Create a Custom GPT and add an Action with the OpenAPI schema; choose authentication mode:

    • API Key (X-API-Key) for service-style access.
    • OAuth2 (AgentStack as IdP) for end-user sign-in.
  3. Paste the instructions from GPT_INSTRUCTIONS.md.
  4. Use the GPT (e.g. “Create a project called Test”, “List my projects”).
What you can do
With the Custom GPT and Action configured, you can ask for any action exposed by the generated MCP capability matrix via agentstack.execute. Example prompts by domain:
DomainExample prompts
Projects"List my projects", "Get stats for my project", "Create a project named Test"
8DNA / Data"Store project data at key config.theme", "Read user data"
Rules Engine"Create a rule when user signs up", "List logic rules"
Buffs"Give user a 7-day trial", "List active buffs"
Payments"Create a payment", "Get wallet balance"
Auth"Get my profile", "Quick auth with email"
Scheduler, Analytics, Webhooks, Notifications, Wallets"Schedule a task", "Get analytics", "List webhooks"
Full tool list and parameters:MCP Capability Matrix. When to use which tool:CONTEXT_FOR_AI in the AgentStack repo.
Documentation
Links
License
MIT. See LICENSE.
About
AgentStack for ChatGPT: GPT Actions (OpenAPI 3.1) and 60+ MCP tools. Custom GPT setup, API key or OAuth2. 8DNA, Rules, Payments, Buffs.
agentstack.tech
Topics
8dnaagentstackbackendchatgptgptgpt-actionsmcpopenaiopenapi
Resources
Readme
MIT license
Activity
Stars
1 star
Watchers
0 watching
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0 forks
Report repository
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, '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
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AgentStack — GPT (OpenAI) integration
Integration of AgentStack with ChatGPT via GPT Actions: use a Custom GPT to create projects, manage API keys, get stats, and call one MCP tool (agentstack.execute) whose current actions come from the live /mcp/actions catalog.
AgentStack is a full backend ecosystem: 8DNA hierarchical data, Rules Engine, Buffs (trials/subscriptions), Payments, and MCP tools for Projects, Auth, Scheduler, Analytics, Webhooks, Notifications, and Wallets.
What’s in this repo
ItemDescription
OpenAPI schemaopenapi/agentstack-mcp.yaml — one action (execute MCP tool) for GPT Actions; supports API Key and OAuth2 auth modes.
InstructionsGPT_INSTRUCTIONS.md — copy into your Custom GPT Instructions field.
Quick StartGPT_QUICKSTART.md — get API key, create Custom GPT, add Action, paste instructions.
Artifact layoutARTIFACTS.md — where each file lives and what it’s for.
Quick Start
  1. Get an API key (anonymous project or account) — see GPT_QUICKSTART.md.
  2. Create a Custom GPT and add an Action with the OpenAPI schema; choose authentication mode:

    • API Key (X-API-Key) for service-style access.
    • OAuth2 (AgentStack as IdP) for end-user sign-in.
  3. Paste the instructions from GPT_INSTRUCTIONS.md.
  4. Use the GPT (e.g. “Create a project called Test”, “List my projects”).
What you can do
With the Custom GPT and Action configured, you can ask for any action exposed by the generated MCP capability matrix via agentstack.execute. Example prompts by domain:
DomainExample prompts
Projects"List my projects", "Get stats for my project", "Create a project named Test"
8DNA / Data"Store project data at key config.theme", "Read user data"
Rules Engine"Create a rule when user signs up", "List logic rules"
Buffs"Give user a 7-day trial", "List active buffs"
Payments"Create a payment", "Get wallet balance"
Auth"Get my profile", "Quick auth with email"
Scheduler, Analytics, Webhooks, Notifications, Wallets"Schedule a task", "Get analytics", "List webhooks"
Full tool list and parameters:MCP Capability Matrix. When to use which tool:CONTEXT_FOR_AI in the AgentStack repo.
Documentation
Links
License
MIT. See LICENSE.
About
AgentStack for ChatGPT: GPT Actions (OpenAPI 3.1) and 60+ MCP tools. Custom GPT setup, API key or OAuth2. 8DNA, Rules, Payments, Buffs.
agentstack.tech
Topics
8dnaagentstackbackendchatgptgptgpt-actionsmcpopenaiopenapi
Resources
Readme
MIT license
Activity
Stars
1 star
Watchers
0 watching
Forks
0 forks
Report repository
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, '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); }
})();
})();

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AgentStack — GPT (OpenAI) integration
Integration of AgentStack with ChatGPT via GPT Actions: use a Custom GPT to create projects, manage API keys, get stats, and call one MCP tool (agentstack.execute) whose current actions come from the live /mcp/actions catalog.
AgentStack is a full backend ecosystem: 8DNA hierarchical data, Rules Engine, Buffs (trials/subscriptions), Payments, and MCP tools for Projects, Auth, Scheduler, Analytics, Webhooks, Notifications, and Wallets.
What’s in this repo
ItemDescription
OpenAPI schemaopenapi/agentstack-mcp.yaml — one action (execute MCP tool) for GPT Actions; supports API Key and OAuth2 auth modes.
InstructionsGPT_INSTRUCTIONS.md — copy into your Custom GPT Instructions field.
Quick StartGPT_QUICKSTART.md — get API key, create Custom GPT, add Action, paste instructions.
Artifact layoutARTIFACTS.md — where each file lives and what it’s for.
Quick Start
  1. Get an API key (anonymous project or account) — see GPT_QUICKSTART.md.
  2. Create a Custom GPT and add an Action with the OpenAPI schema; choose authentication mode:

    • API Key (X-API-Key) for service-style access.
    • OAuth2 (AgentStack as IdP) for end-user sign-in.
  3. Paste the instructions from GPT_INSTRUCTIONS.md.
  4. Use the GPT (e.g. “Create a project called Test”, “List my projects”).
What you can do
With the Custom GPT and Action configured, you can ask for any action exposed by the generated MCP capability matrix via agentstack.execute. Example prompts by domain:
DomainExample prompts
Projects"List my projects", "Get stats for my project", "Create a project named Test"
8DNA / Data"Store project data at key config.theme", "Read user data"
Rules Engine"Create a rule when user signs up", "List logic rules"
Buffs"Give user a 7-day trial", "List active buffs"
Payments"Create a payment", "Get wallet balance"
Auth"Get my profile", "Quick auth with email"
Scheduler, Analytics, Webhooks, Notifications, Wallets"Schedule a task", "Get analytics", "List webhooks"
Full tool list and parameters:MCP Capability Matrix. When to use which tool:CONTEXT_FOR_AI in the AgentStack repo.
Documentation
Links
License
MIT. See LICENSE.
About
AgentStack for ChatGPT: GPT Actions (OpenAPI 3.1) and 60+ MCP tools. Custom GPT setup, API key or OAuth2. 8DNA, Rules, Payments, Buffs.
agentstack.tech
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8dnaagentstackbackendchatgptgptgpt-actionsmcpopenaiopenapi
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