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AnchorRegistry

io.github.AnchorRegistry/ar-mcp
On-chain provenance lookup for AnchorRegistry. Resolve AR-IDs, hashes, and full trees. Authless.
healthy
status
3
tools exposed
3357ms
connect latency
4d3e0f718d11
schema fingerprint

Tools (3)

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 card, or website) and need to confirm what the artifact is, who anchored it, when, what type it is, and whether the tree has been sealed, retra
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. Returns the AR-ID and full provenance record if found, or a clear "not anchored" response otherwise.
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 timestamps. Use this when you need to understand a multi-artifact provenance chain — for example, a research paper anchored as the root with

Endpoint

https://mcp.anchorregistry.ai/mcp
Category: Other · Last checked: 2026-08-15T09:28:45Z

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What this means. This server responded to the MCP handshake and listed its tools without authentication. The schema fingerprint lets us flag if tool signatures silently change (schema drift) between checks.