# ArcID

> Look up AI agents on Arc: ERC-8004 identity, feedback, validations and USDC-backed trust scores.

- name: io.github.arcusid/arcid-mcp
- version: 0.2.0
- connection class: R0 (autonomous)
- trust: 96/100
- quality: 87/100 (good)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/io.github.arcusid%2Farcid-mcp
- tools: https://api.protogrid.dev/v1/servers/io.github.arcusid%2Farcid-mcp/tools

**An agent can connect right now, no human step.** Remote endpoint, no authentication, reachable on the last probe.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "arcid-mcp": {
      "type": "http",
      "url": "https://mcp.arcusid.com/mcp"
    }
  }
}
```


## Trust

- hygiene: 100
- liveness: 98
- freshness: 100
- provenance: 90
- drivers: +repository +namespace-matches-repo +website +reachable +uptime-96% +updated-23d-ago
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 87/100 (good)

### protocol: 75 (weight 25)

- warn `protocol.modern`: newest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
- n/a `protocol.stateless`: only applies to 2026-07-28 servers
- pass `protocol.transport`: streamable HTTP
- n/a `protocol.list_ttl`: only applies to 2026-07-28 servers

### authorization: n/a (weight 15)

- n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: 100 (weight 30)

- pass `tools.descriptions`: every tool has a description
- pass `tools.description_length`: descriptions are concise
- pass `tools.schemas`: every tool has an object input schema
- pass `tools.annotations`: 6 of 6 tools declare readOnlyHint or destructiveHint
- pass `tools.directory_hints`: every tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
- pass `tools.token_cost`: about 863 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: 100 (weight 15)

- pass `stability.changes`: no tool changes in 30 days
- pass `stability.rug_pull`: no tool changed its meaning under the same name

### dependencies: 67 (weight 15)

- pass `deps.known_vulns`: no known advisory in 98 resolved packages
- fail `deps.mcp_sdk_version`: @modelcontextprotocol/sdk 1.30.1 has 1 known advisory (GHSA-6qxp-vccf-f47h); update @modelcontextprotocol/sdk to 1.31.0 or later
- pass `deps.resolvable`: arcid-mcp@0.2.0 resolved: 98 packages

- tools: 6, about 863 tokens to load them all
- tool set hash: e3eb1ebaadd16c297dbb379c94a6df52
- badge: [![protogrid quality](https://protogrid.dev/badge/io.github.arcusid/arcid-mcp.svg)](https://protogrid.dev/servers/io.github.arcusid/arcid-mcp)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

_No tool definition changes recorded._

## Dependencies

- npm arcid-mcp@0.2.0: resolved, 97 dependencies, MCP SDK @modelcontextprotocol/sdk 1.30.1
  - GHSA-6qxp-vccf-f47h (high) in `` @modelcontextprotocol/sdk@1.30.1 ``, direct, fixed in `` 1.31.0 ``, advisory summary: "MCP TypeScript SDK: OAuth client could send credentials to an authorization server chosen by the MCP server" https://osv.dev/vulnerability/GHSA-6qxp-vccf-f47h

Dependency graphs from deps.dev; advisories from OSV.dev, including the GitHub Advisory Database and the PyPI Advisory Database; all CC BY 4.0.

## Remotes

- https://mcp.arcusid.com/mcp (streamable-http, auth none, reachable true, uptime30d 0.9550562)

## Packages

- npm arcid-mcp@0.2.0

## Tools (6)

- `get_agent`: Full ArcID record for one agent: profile, owner, agent wallet, reputation summary, validations, trust score and the USDC settlement evidence behind it.
- `get_agent_feedback`: Feedback left for an agent in the ERC-8004 Reputation Registry, newest first. Each entry is classified (receipt, rating, metric, self, revoked) with a normalised 0-100 rating where applicable.
- `get_agent_validations`: The latest 100 validation requests and responses for an agent from the ERC-8004 Validation Registry.
- `get_indexer_health`: How far the ArcID indexer is behind the Arc chain head. Check this when results look empty or stale.
- `get_registry_stats`: Totals across the ArcID index: agents, owners, feedback, validations and settled USDC.
- `search_agents`: Search the ArcID directory of AI agents registered on Arc (ERC-8004). Supports full-text search over names and descriptions, filtering by owner address, and sorting by trust score, feedback count or settled USDC.