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Free, open protocol for transparent AI content attribution. One HTTP call. No API keys, no auth tokens, no cost.

Website: attest.97115104.com

attest creates cryptographically signed records of who made something, what model was used, and how much was human vs. machine. You attach the record to your work and anyone can verify it later.

Three authorship types:

Install the SDK for deterministic, hallucination-proof attestations. The SDK handles URL construction, response parsing, and returns exact URLs from the server. No prompt engineering required.

npm install attest-client

import { attest } from 'attest-client';

const result = await attest({
  content_name: 'README.md',
  model: 'claude-opus-4',
  role: 'collaborated',
  author: 'my-agent',
  platform: 'GitHub Copilot VS Code'
});

console.log(result.urls.short);  // exact short URL from server
console.log(result.urls.verify); // exact verify URL from server

Or use the CLI:

npx attest --content README.md --model claude-opus-4 --role collaborated --author my-agent

The SDK adds determinism to agent-generated attestations by eliminating URL construction errors, validating inputs before sending, and identifying itself via User-Agent: attest-client/3.0.0 for tracking.

One GET request. The response includes a signed attestation and both a long verify URL and an auto-generated short link.

curl "https://attest.97115104.com/api/create?content_name=README.md&model=claude-opus-4&role=collaborated&author=my-agent"

The short URL is created automatically on every call, no extra step needed.

Go to attest.97115104.com/humans to create attestations through the web UI.

If your AI agent doesn't have internet access, the humans page has a "copy prompt to clipboard" button that gives your agent everything it needs to walk you through creating an attestation together.

Creates an attestation. Returns the signed attestation, a verify URL, and an auto-generated short URL.

Upload a file to hash and attest. Content-Type: multipart/form-data.

curl -F "[email protected]" -F "role=collaborated" -F "model=claude-opus-4" \
  https://attest.97115104.com/api/create-upload

Fetch a URL, hash its content, create attestation. Content-Type: application/json.

curl -X POST https://attest.97115104.com/api/create-url \
  -H "Content-Type: application/json" \
  -d '{"url":"https://example.com","role":"collaborated","model":"claude-opus-4"}'

Shorten an existing verify URL. Takes {"data":"base64..."}.

Live platform metrics: total attestations, verifications, agent visits, breakdowns by type and agent.

Machine-readable API spec for agent discovery.

Every create endpoint returns the same structure:

{
  "success": true,
  "attestation": {
    "version": "3.0",
    "id": "2026-04-03-a1b2c3",
    "content_name": "README.md",
    "model": "claude-opus-4",
    "role": "collaborated",
    "authorship_type": "collab",
    "timestamp": "2026-04-03T12:00:00.000Z",
    "platform": "GitHub Copilot VS Code",
    "author": "my-agent",
    "signature": { "type": "hmac-sha256", "..." : "..." }
  },
  "urls": {
    "verify": "https://attest.97115104.com/verify/?data=eyJ2ZXJz...",
    "short": "https://attest.97115104.com/s/abc12345"
  }
}

The urls.short field is always present. Short URLs are generated automatically.

[![attested: collab claude opus 4](https://img.shields.io/badge/attested-collab%20claude%20opus%204-blue)](https://attest.97115104.com/s/YOUR_SHORT_ID)

Agents can discover the API at /.well-known/attest.json or read /llms.txt for integration instructions.

The agents page has full endpoint documentation and examples.

The attest-client npm package provides deterministic attestation creation with zero dependencies. It eliminates the most common agent failure mode: URL hallucination. Instead of parsing raw JSON responses and risking URL fabrication, the SDK returns structured objects with exact server-generated URLs.

import { createClient } from 'attest-client';

const client = createClient({ author: 'my-agent' });
const result = await client.create({ content_name: 'output.md', model: 'claude-opus-4' });
// result.urls.short is always the exact URL from the server

CLI for scripts and CI/CD:

npx attest --content output.md --model claude-opus-4 --role generated --author my-bot
npx attest --metrics
npx attest --discover

• npm SDK (attest-client) for deterministic agent attestations, zero dependencies
• Platform tracking: records which tool/interface was used (GitHub Copilot, Claude Code, ChatGPT, etc.)
• Optional prompt capture: attach the prompt(s) used, with single or multi-prompt support
• WebGL noise field background (adapts to light/dark mode)
• Live dashboard with donut charts for authorship type + agent activity
• First-visit welcome modal for human visitors
• Offline prompt for agents without internet access
• Supports prefers-color-scheme for automatic light/dark mode
• HMAC-SHA256 signed attestations
• SQLite storage with agent visit tracking

git clone https://github.com/97115104/attest.git
cd attest
npm install
npm start

Requires Node.js. SQLite database created automatically in data/.

Set HOST to your domain (default: attest.97115104.com).

MIT