{
  "markdown": "# Elucora Evidence MCP Server\n\nCapture a public web source and return a portable, cryptographically signed evidence receipt.\n\nElucora is a hosted MCP server. There is nothing to install: point your client at\n`https://elucora.com/mcp`. Two of the four tools need no API key at all, so a client can verify\nand read receipts before anyone signs up for anything.\n\nAn agent can seal the exact page, PDF, or JSON field behind a claim, hand the receipt to\nsomeone else, and have them verify it without trusting Elucora's dashboard or its API.\n\n## Tools\n\n| Tool | Key required | What it does |\n|---|---|---|\n| `elucora_verify` | No | Checks whether a receipt is genuine and unaltered, and what source bytes it covers. |\n| `elucora_get_receipt` | No | Reads a receipt: source, sealed passage, signature status, Bitcoin anchor state. |\n| `elucora_capture` | Yes | Fetches a public HTTP(S) source, preserves the original bytes, optionally pins an exact quote or JSON Pointer, and returns a signed receipt. Consumes quota and contacts the source. |\n| `elucora_attest` | Yes | Seals a SHA-256 hash the caller already holds, for content with no URL. Proves the content existed then and has not changed since — not where it came from. Consumes quota. |\n\nThe free tier is 500 receipts a month with no card.\n\n## Connecting\n\n`elucora_verify` and `elucora_get_receipt` work with no credentials. For the two tools that\ncontact a source or spend quota, create an API key at\n[elucora.com/dashboard/keys](https://elucora.com/dashboard/keys), then:\n\n```json\n{\n  \"mcpServers\": {\n    \"elucora\": {\n      \"url\": \"https://elucora.com/mcp\",\n      \"headers\": { \"Authorization\": \"Bearer elu_live_...\" }\n    }\n  }\n}\n```\n\nThe server implements stateless Streamable HTTP, protocol version `2025-11-25`.\n\nHosts should keep a human approval step before `elucora_capture`: it makes a request to an\nexternal URL and consumes the account's monthly quota.\n\n## What a receipt proves\n\n- The captured bytes and the selected evidence match their recorded SHA-256 hashes\n- Elucora issued the receipt and it has not been altered since, by ES256 signature over\n  [RFC 8785](https://www.rfc-editor.org/rfc/rfc8785.html) canonical JSON\n- The entry is in a public hash-linked log, published as signed checkpoints outside Elucora\n- When a timestamp authority is configured, an [RFC 3161](https://www.rfc-editor.org/rfc/rfc3161)\n  token binds the entry to an independently signed time, and entry digests are submitted to\n  OpenTimestamps for Bitcoin anchoring\n\nA valid receipt proves integrity, issuer, and time. It does not prove that the source was\ntelling the truth.\n\n## Limits, stated before you find them\n\n- **Captures are HTTP, not a browser.** A page that renders its content with JavaScript is captured\n  as the shell the server sent. Filings, feeds, APIs and article pages are exactly right; single\n  page applications and social posts are not.\n- **Elucora is trusted at the moment of capture.** The receipt proves what Elucora was served.\n  Everything after that instant is verifiable without trusting Elucora at all.\n- **No affidavit.** Nothing here is offered as court-admissible; that is a matter for a court and\n  its rules, not for a vendor.\n- **One operator, and a young log.** Both are publicly countable at\n  [elucora.com/transparency](https://elucora.com/transparency).\n\n## Verifying without Elucora\n\nEvery receipt carries `jwks_url`, and verification keys are published at\n[`/.well-known/jwks.json`](https://elucora.com/.well-known/jwks.json). Any ES256 implementation\ncan check a receipt offline. The public verifier for a receipt lives at `/verify/{id}`.\n\n## Links\n\n- API documentation: <https://elucora.com/docs>\n- OpenAPI 3.1 contract: <https://elucora.com/openapi.json>\n- Public transparency log: <https://elucora.com/transparency>\n- Registry listing: `com.elucora/evidence`\n",
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  "repo_slug": "fuyuki0/elucora-mcp",
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  "api": "https://agentalog.com/api/listings/mcp_com_elucora_evidence_4d43fb3b/readme"
}