io.github.AnchorRegistry/ar-mcp

up checked 2026-11-11T08:40:00.258Z

Unclaimed · Unverified

Publisher-provided title

AnchorRegistry

Publisher-provided description

On-chain provenance lookup for AnchorRegistry. Resolve AR-IDs, hashes, and full trees. Authless.

Summary by lookupd

Look up on-chain provenance records by AR-ID or SHA-256 hash, and resolve full anchor trees to verify artifact origins.

Install

Claude Code, remote (streamable-http)

claude mcp add --transport http ar https://mcp.anchorregistry.ai/mcp

Claude Code, remote (sse)

claude mcp add --transport sse ar https://mcp.anchorregistry.ai/sse

Codex, remote (streamable-http)

codex mcp add ar --url https://mcp.anchorregistry.ai/mcp

Codex, remote (sse)

codex mcp add ar --url https://mcp.anchorregistry.ai/sse

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

{
  "mcpServers": {
    "ar": {
      "url": "https://mcp.anchorregistry.ai/mcp"
    }
  }
}

Cursor, remote (sse) → .cursor/mcp.json

{
  "mcpServers": {
    "ar": {
      "type": "sse",
      "url": "https://mcp.anchorregistry.ai/sse"
    }
  }
}

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

Publisher-provided text

ar_verify_arid Resolve an AnchorRegistry AR-ID to its full provenance record. Use this when you encounter an SPDX-Anchor or DAPX-Anchor tag (e.g. in a README, paper, model car
ar_verify_by_hash Resolve an artifact by its SHA-256 manifest hash. Use this when you have the artifact itself but no AR-ID, and want to check whether it has been anchored. Retur
ar_resolve_tree Resolve the full provenance tree for an AR-ID. Returns every anchor in the tree (root + all descendants) with their relationships, types, manifest hashes, and t

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