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Repository files navigation

descriptionEnd-to-end Encrypted. End-to-end Secured. End-to-end Decentralized.

TACo | Cryptographic Public Good

TACo – Threshold Access Control – is a free and open source public good; cryptographic infrastructure to undergird a non-surveilling, non-rent-seeking, non-exploitative internet.

{% hint style="info" icon="hand-fist" %} The TACo project is now under the stewardship of the World Ethical Data Foundation. Although operators may choose to continue running TACo node clients in the interim, a stable version of the service will be relaunched in Q3 2026 – centered around a Privacy Coalition. If you represent an organization in the domains of privacy advocacy, anti-surveillance, human rights, encryption/whistleblower technology, or pertinent academic research, and would like to be involved, please get in touch. {% endhint %}

From an app developer's perspective, TACo is a straightforward and affordable plugin. Once integrated, TACo can enforce user-authored policies over who or what can access sensitive data – without single points of failure, data custodians, or centralized authorities.

This is possible thanks to the TACo network; an array of independently-controlled nodes each running the TACo client. Apps that have integrated the plugin connect to the network via the taco-web API. Groups of TACo nodes respond to user requests by collectively validating sharing or policies. Specifically, nodes individually verify the requestor's fulfillment of pre-specified conditions, before providing the necessary fragment of decryption material, enabling the requestor's access.

Without relying on centralized servers, TACo empowers the application user to truly control the conditions under which their data is accessible: by whom, for how long, and contingent on any digital source of truth.

For example: share my archive of evidence with journalists if I do not check-in over the next 7 days.

{% hint style="info" %} There is also an experimental variant of TACo centered around conditions-based signing. For more information, see Threshold Action Control. {% endhint %}

I'm interested in..

Cover image
Building with TACoIntegrate TACo into your application and enable low-trust data sharing and automation workflows for your users.get-started-with-tac.mdTACo-diagram-white-1.png
Evaluating TACo's utilityLearn about TACo's unique capabilities, including expressive condition logic, infrastructural flexibility, and low-trust model.value-propositions.mdTACo-diagram-white-6.png
Running a TACo nodeSupport TACo's adopting applications by spinning up a low-memory, low-cost, low-maintenance node client.Broken linkTACo-diagram-white-5.png

Get Started Now

About

Application development documentation for TACo

Resources

Readme
AGPL-3.0 license

Code of conduct

Code of conduct

Contributing

Contributing
Activity
Custom properties

Stars

1 star

Watchers

4 watching

Forks

1 fork
Report repository

Contributors

, '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
descriptionEnd-to-end Encrypted. End-to-end Secured. End-to-end Decentralized.
TACo | Cryptographic Public Good
TACo – Threshold Access Control – is a free and open source public good; cryptographic infrastructure to undergird a non-surveilling, non-rent-seeking, non-exploitative internet. 
{% hint style="info" icon="hand-fist" %}
The TACo project is now under the stewardship of the World Ethical Data Foundation. Although operators may choose to continue running TACo node clients in the interim, a stable version of the service will be relaunched in Q3 2026 – centered around a Privacy Coalition. If you represent an organization in the domains of privacy advocacy, anti-surveillance, human rights, encryption/whistleblower technology, or pertinent academic research, and would like to be involved, please get in touch. {% endhint %}
From an app developer's perspective, TACo is a straightforward and affordable plugin. Once integrated, TACo can enforce user-authored policies over who or what can access sensitive data – without single points of failure, data custodians, or centralized authorities.
This is possible thanks to the TACo network; an array of independently-controlled nodes each running the TACo client. Apps that have integrated the plugin connect to the network via the taco-web API. Groups of TACo nodes respond to user requests by collectively validating sharing or policies. Specifically, nodes individually verify the requestor's fulfillment of pre-specified conditions, before providing the necessary fragment of decryption material, enabling the requestor's access. 
Without relying on centralized servers, TACo empowers the application user to truly control the conditions under which their data is accessible: by whom, for how long, and contingent on any digital source of truth. 
For example: share my archive of evidence with journalists if I do not check-in over the next 7 days.
{% hint style="info" %}
There is also an experimental variant of TACo centered around conditions-based signing. For more information, see Threshold Action Control. {% endhint %}
I'm interested in..
Cover image
Building with TACoIntegrate TACo into your application and enable low-trust data sharing and automation workflows for your users.get-started-with-tac.mdTACo-diagram-white-1.png
Evaluating TACo's utilityLearn about TACo's unique capabilities, including expressive condition logic, infrastructural flexibility, and low-trust model.value-propositions.mdTACo-diagram-white-6.png
Running a TACo nodeSupport TACo's adopting applications by spinning up a low-memory, low-cost, low-maintenance node client.Broken linkTACo-diagram-white-5.png
Get Started Now
About
Application development documentation for TACo
Resources
Readme
AGPL-3.0 license
Code of conduct
Code of conduct
Contributing
Contributing
Activity
Custom properties
Stars
1 star
Watchers
4 watching
Forks
1 fork
Report repository
Contributors

, '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
descriptionEnd-to-end Encrypted. End-to-end Secured. End-to-end Decentralized.
TACo | Cryptographic Public Good
TACo – Threshold Access Control – is a free and open source public good; cryptographic infrastructure to undergird a non-surveilling, non-rent-seeking, non-exploitative internet. 
{% hint style="info" icon="hand-fist" %}
The TACo project is now under the stewardship of the World Ethical Data Foundation. Although operators may choose to continue running TACo node clients in the interim, a stable version of the service will be relaunched in Q3 2026 – centered around a Privacy Coalition. If you represent an organization in the domains of privacy advocacy, anti-surveillance, human rights, encryption/whistleblower technology, or pertinent academic research, and would like to be involved, please get in touch. {% endhint %}
From an app developer's perspective, TACo is a straightforward and affordable plugin. Once integrated, TACo can enforce user-authored policies over who or what can access sensitive data – without single points of failure, data custodians, or centralized authorities.
This is possible thanks to the TACo network; an array of independently-controlled nodes each running the TACo client. Apps that have integrated the plugin connect to the network via the taco-web API. Groups of TACo nodes respond to user requests by collectively validating sharing or policies. Specifically, nodes individually verify the requestor's fulfillment of pre-specified conditions, before providing the necessary fragment of decryption material, enabling the requestor's access. 
Without relying on centralized servers, TACo empowers the application user to truly control the conditions under which their data is accessible: by whom, for how long, and contingent on any digital source of truth. 
For example: share my archive of evidence with journalists if I do not check-in over the next 7 days.
{% hint style="info" %}
There is also an experimental variant of TACo centered around conditions-based signing. For more information, see Threshold Action Control. {% endhint %}
I'm interested in..
Cover image
Building with TACoIntegrate TACo into your application and enable low-trust data sharing and automation workflows for your users.get-started-with-tac.mdTACo-diagram-white-1.png
Evaluating TACo's utilityLearn about TACo's unique capabilities, including expressive condition logic, infrastructural flexibility, and low-trust model.value-propositions.mdTACo-diagram-white-6.png
Running a TACo nodeSupport TACo's adopting applications by spinning up a low-memory, low-cost, low-maintenance node client.Broken linkTACo-diagram-white-5.png
Get Started Now
About
Application development documentation for TACo
Resources
Readme
AGPL-3.0 license
Code of conduct
Code of conduct
Contributing
Contributing
Activity
Custom properties
Stars
1 star
Watchers
4 watching
Forks
1 fork
Report repository
Contributors

, '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
descriptionEnd-to-end Encrypted. End-to-end Secured. End-to-end Decentralized.
TACo | Cryptographic Public Good
TACo – Threshold Access Control – is a free and open source public good; cryptographic infrastructure to undergird a non-surveilling, non-rent-seeking, non-exploitative internet. 
{% hint style="info" icon="hand-fist" %}
The TACo project is now under the stewardship of the World Ethical Data Foundation. Although operators may choose to continue running TACo node clients in the interim, a stable version of the service will be relaunched in Q3 2026 – centered around a Privacy Coalition. If you represent an organization in the domains of privacy advocacy, anti-surveillance, human rights, encryption/whistleblower technology, or pertinent academic research, and would like to be involved, please get in touch. {% endhint %}
From an app developer's perspective, TACo is a straightforward and affordable plugin. Once integrated, TACo can enforce user-authored policies over who or what can access sensitive data – without single points of failure, data custodians, or centralized authorities.
This is possible thanks to the TACo network; an array of independently-controlled nodes each running the TACo client. Apps that have integrated the plugin connect to the network via the taco-web API. Groups of TACo nodes respond to user requests by collectively validating sharing or policies. Specifically, nodes individually verify the requestor's fulfillment of pre-specified conditions, before providing the necessary fragment of decryption material, enabling the requestor's access. 
Without relying on centralized servers, TACo empowers the application user to truly control the conditions under which their data is accessible: by whom, for how long, and contingent on any digital source of truth. 
For example: share my archive of evidence with journalists if I do not check-in over the next 7 days.
{% hint style="info" %}
There is also an experimental variant of TACo centered around conditions-based signing. For more information, see Threshold Action Control. {% endhint %}
I'm interested in..
Cover image
Building with TACoIntegrate TACo into your application and enable low-trust data sharing and automation workflows for your users.get-started-with-tac.mdTACo-diagram-white-1.png
Evaluating TACo's utilityLearn about TACo's unique capabilities, including expressive condition logic, infrastructural flexibility, and low-trust model.value-propositions.mdTACo-diagram-white-6.png
Running a TACo nodeSupport TACo's adopting applications by spinning up a low-memory, low-cost, low-maintenance node client.Broken linkTACo-diagram-white-5.png
Get Started Now
About
Application development documentation for TACo
Resources
Readme
AGPL-3.0 license
Code of conduct
Code of conduct
Contributing
Contributing
Activity
Custom properties
Stars
1 star
Watchers
4 watching
Forks
1 fork
Report repository
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" + '

Skip to content
BranchesTags
Repository files navigation
descriptionEnd-to-end Encrypted. End-to-end Secured. End-to-end Decentralized.
TACo | Cryptographic Public Good
TACo – Threshold Access Control – is a free and open source public good; cryptographic infrastructure to undergird a non-surveilling, non-rent-seeking, non-exploitative internet. 
{% hint style="info" icon="hand-fist" %}
The TACo project is now under the stewardship of the World Ethical Data Foundation. Although operators may choose to continue running TACo node clients in the interim, a stable version of the service will be relaunched in Q3 2026 – centered around a Privacy Coalition. If you represent an organization in the domains of privacy advocacy, anti-surveillance, human rights, encryption/whistleblower technology, or pertinent academic research, and would like to be involved, please get in touch. {% endhint %}
From an app developer's perspective, TACo is a straightforward and affordable plugin. Once integrated, TACo can enforce user-authored policies over who or what can access sensitive data – without single points of failure, data custodians, or centralized authorities.
This is possible thanks to the TACo network; an array of independently-controlled nodes each running the TACo client. Apps that have integrated the plugin connect to the network via the taco-web API. Groups of TACo nodes respond to user requests by collectively validating sharing or policies. Specifically, nodes individually verify the requestor's fulfillment of pre-specified conditions, before providing the necessary fragment of decryption material, enabling the requestor's access. 
Without relying on centralized servers, TACo empowers the application user to truly control the conditions under which their data is accessible: by whom, for how long, and contingent on any digital source of truth. 
For example: share my archive of evidence with journalists if I do not check-in over the next 7 days.
{% hint style="info" %}
There is also an experimental variant of TACo centered around conditions-based signing. For more information, see Threshold Action Control. {% endhint %}
I'm interested in..
Cover image
Building with TACoIntegrate TACo into your application and enable low-trust data sharing and automation workflows for your users.get-started-with-tac.mdTACo-diagram-white-1.png
Evaluating TACo's utilityLearn about TACo's unique capabilities, including expressive condition logic, infrastructural flexibility, and low-trust model.value-propositions.mdTACo-diagram-white-6.png
Running a TACo nodeSupport TACo's adopting applications by spinning up a low-memory, low-cost, low-maintenance node client.Broken linkTACo-diagram-white-5.png
Get Started Now
About
Application development documentation for TACo
Resources
Readme
AGPL-3.0 license
Code of conduct
Code of conduct
Contributing
Contributing
Activity
Custom properties
Stars
1 star
Watchers
4 watching
Forks
1 fork
Report repository
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
Repository files navigation
descriptionEnd-to-end Encrypted. End-to-end Secured. End-to-end Decentralized.
TACo | Cryptographic Public Good
TACo – Threshold Access Control – is a free and open source public good; cryptographic infrastructure to undergird a non-surveilling, non-rent-seeking, non-exploitative internet. 
{% hint style="info" icon="hand-fist" %}
The TACo project is now under the stewardship of the World Ethical Data Foundation. Although operators may choose to continue running TACo node clients in the interim, a stable version of the service will be relaunched in Q3 2026 – centered around a Privacy Coalition. If you represent an organization in the domains of privacy advocacy, anti-surveillance, human rights, encryption/whistleblower technology, or pertinent academic research, and would like to be involved, please get in touch. {% endhint %}
From an app developer's perspective, TACo is a straightforward and affordable plugin. Once integrated, TACo can enforce user-authored policies over who or what can access sensitive data – without single points of failure, data custodians, or centralized authorities.
This is possible thanks to the TACo network; an array of independently-controlled nodes each running the TACo client. Apps that have integrated the plugin connect to the network via the taco-web API. Groups of TACo nodes respond to user requests by collectively validating sharing or policies. Specifically, nodes individually verify the requestor's fulfillment of pre-specified conditions, before providing the necessary fragment of decryption material, enabling the requestor's access. 
Without relying on centralized servers, TACo empowers the application user to truly control the conditions under which their data is accessible: by whom, for how long, and contingent on any digital source of truth. 
For example: share my archive of evidence with journalists if I do not check-in over the next 7 days.
{% hint style="info" %}
There is also an experimental variant of TACo centered around conditions-based signing. For more information, see Threshold Action Control. {% endhint %}
I'm interested in..
Cover image
Building with TACoIntegrate TACo into your application and enable low-trust data sharing and automation workflows for your users.get-started-with-tac.mdTACo-diagram-white-1.png
Evaluating TACo's utilityLearn about TACo's unique capabilities, including expressive condition logic, infrastructural flexibility, and low-trust model.value-propositions.mdTACo-diagram-white-6.png
Running a TACo nodeSupport TACo's adopting applications by spinning up a low-memory, low-cost, low-maintenance node client.Broken linkTACo-diagram-white-5.png
Get Started Now
About
Application development documentation for TACo
Resources
Readme
AGPL-3.0 license
Code of conduct
Code of conduct
Contributing
Contributing
Activity
Custom properties
Stars
1 star
Watchers
4 watching
Forks
1 fork
Report repository
Contributors

, '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
descriptionEnd-to-end Encrypted. End-to-end Secured. End-to-end Decentralized.
TACo | Cryptographic Public Good
TACo – Threshold Access Control – is a free and open source public good; cryptographic infrastructure to undergird a non-surveilling, non-rent-seeking, non-exploitative internet. 
{% hint style="info" icon="hand-fist" %}
The TACo project is now under the stewardship of the World Ethical Data Foundation. Although operators may choose to continue running TACo node clients in the interim, a stable version of the service will be relaunched in Q3 2026 – centered around a Privacy Coalition. If you represent an organization in the domains of privacy advocacy, anti-surveillance, human rights, encryption/whistleblower technology, or pertinent academic research, and would like to be involved, please get in touch. {% endhint %}
From an app developer's perspective, TACo is a straightforward and affordable plugin. Once integrated, TACo can enforce user-authored policies over who or what can access sensitive data – without single points of failure, data custodians, or centralized authorities.
This is possible thanks to the TACo network; an array of independently-controlled nodes each running the TACo client. Apps that have integrated the plugin connect to the network via the taco-web API. Groups of TACo nodes respond to user requests by collectively validating sharing or policies. Specifically, nodes individually verify the requestor's fulfillment of pre-specified conditions, before providing the necessary fragment of decryption material, enabling the requestor's access. 
Without relying on centralized servers, TACo empowers the application user to truly control the conditions under which their data is accessible: by whom, for how long, and contingent on any digital source of truth. 
For example: share my archive of evidence with journalists if I do not check-in over the next 7 days.
{% hint style="info" %}
There is also an experimental variant of TACo centered around conditions-based signing. For more information, see Threshold Action Control. {% endhint %}
I'm interested in..
Cover image
Building with TACoIntegrate TACo into your application and enable low-trust data sharing and automation workflows for your users.get-started-with-tac.mdTACo-diagram-white-1.png
Evaluating TACo's utilityLearn about TACo's unique capabilities, including expressive condition logic, infrastructural flexibility, and low-trust model.value-propositions.mdTACo-diagram-white-6.png
Running a TACo nodeSupport TACo's adopting applications by spinning up a low-memory, low-cost, low-maintenance node client.Broken linkTACo-diagram-white-5.png
Get Started Now
About
Application development documentation for TACo
Resources
Readme
AGPL-3.0 license
Code of conduct
Code of conduct
Contributing
Contributing
Activity
Custom properties
Stars
1 star
Watchers
4 watching
Forks
1 fork
Report repository
Contributors

, '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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descriptionEnd-to-end Encrypted. End-to-end Secured. End-to-end Decentralized.
TACo | Cryptographic Public Good
TACo – Threshold Access Control – is a free and open source public good; cryptographic infrastructure to undergird a non-surveilling, non-rent-seeking, non-exploitative internet. 
{% hint style="info" icon="hand-fist" %}
The TACo project is now under the stewardship of the World Ethical Data Foundation. Although operators may choose to continue running TACo node clients in the interim, a stable version of the service will be relaunched in Q3 2026 – centered around a Privacy Coalition. If you represent an organization in the domains of privacy advocacy, anti-surveillance, human rights, encryption/whistleblower technology, or pertinent academic research, and would like to be involved, please get in touch. {% endhint %}
From an app developer's perspective, TACo is a straightforward and affordable plugin. Once integrated, TACo can enforce user-authored policies over who or what can access sensitive data – without single points of failure, data custodians, or centralized authorities.
This is possible thanks to the TACo network; an array of independently-controlled nodes each running the TACo client. Apps that have integrated the plugin connect to the network via the taco-web API. Groups of TACo nodes respond to user requests by collectively validating sharing or policies. Specifically, nodes individually verify the requestor's fulfillment of pre-specified conditions, before providing the necessary fragment of decryption material, enabling the requestor's access. 
Without relying on centralized servers, TACo empowers the application user to truly control the conditions under which their data is accessible: by whom, for how long, and contingent on any digital source of truth. 
For example: share my archive of evidence with journalists if I do not check-in over the next 7 days.
{% hint style="info" %}
There is also an experimental variant of TACo centered around conditions-based signing. For more information, see Threshold Action Control. {% endhint %}
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Building with TACoIntegrate TACo into your application and enable low-trust data sharing and automation workflows for your users.get-started-with-tac.mdTACo-diagram-white-1.png
Evaluating TACo's utilityLearn about TACo's unique capabilities, including expressive condition logic, infrastructural flexibility, and low-trust model.value-propositions.mdTACo-diagram-white-6.png
Running a TACo nodeSupport TACo's adopting applications by spinning up a low-memory, low-cost, low-maintenance node client.Broken linkTACo-diagram-white-5.png
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