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AnchorRegistry

io.github.AnchorRegistry/ar-mcp · v0.1.0

No registry update 90+ days

Measured by MCP Station

Last check	Reachable
Checked at	—
Check success 7 / 30 days	—
First-try success 30 days	—
Median response	—
Lookups 30 days	—
Authentication	No auth
MCP version	2025-06-18
Rank score	—
Declared risk	Not declared (tools carry no read/destructive hints)
Capabilities declared	tools
Tool definitions	3 tools · with description 100% · input schema is an object 100% · read/destructive hints 0%

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

streamable-http · https://mcp.anchorregistry.ai/mcp

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

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

sse · https://mcp.anchorregistry.ai/sse

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

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

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

Repository · Website · JSON · Text for agents · Registry updated 2026-04-30