io.github.Mlartab2/canonicalhash

up checked 2026-11-10T20:37:51.397Z

Unclaimed · Unverified

Publisher-provided description

Deterministic JSON hashing and EIP-712 attestations for AI agents via x402.

Summary by lookupd

Canonicalizes and hashes JSON, signs EIP-712 attestations and receipts, verifies signatures, and extracts structured JSON from text.

Install

Claude Code, remote (streamable-http)

claude mcp add --transport http canonicalhash https://canonicalhash-production.up.railway.app/mcp

Codex, remote (streamable-http)

codex mcp add canonicalhash --url https://canonicalhash-production.up.railway.app/mcp

Cursor, remote (streamable-http) → .cursor/mcp.json

{
  "mcpServers": {
    "canonicalhash": {
      "url": "https://canonicalhash-production.up.railway.app/mcp"
    }
  }
}

Other clients: docs. Or tell your agent: Set up lookupd for me: read https://lookupd.com/agent.md and follow it.

Publisher-provided text

canonicalize Canonicalize JSON with RFC 8785 and return a SHA-256 hash plus an EIP-712 signed attestation.
batch_canonicalize Batch canonicalize up to 1000 JSON payloads in one call.
create_receipt Generate a tamper-evident EIP-712 action receipt for an agent decision.
structure_extraction Extract structured JSON from messy text (emails, logs, tickets) using regex or Needle 3.
verify_attestation Verify an EIP-712 attestation against the published public key. Always free.

Shows this live status and links here; updates hourly.

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