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Home/Servers/ArcID

ArcID

by io.github.arcusid

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

Power your agent

Add this server

The publisher's own URL. Not a PlugMCP endpoint.

Server URL
https://mcp.arcusid.com/mcp
Credentials from the publisher
  • ARCID_API_URL — ArcID indexer API. Defaults to https://api.arcusid.com
Provider
Add in Claude

Claude opens with the name and URL filled in. You still confirm it there.

Claude Code
claude mcp add --transport http io.github.arcusid-arcid-mcp https://mcp.arcusid.com/mcp

Run in a terminal.

Claude Desktop
{
  "mcpServers": {
    "io.github.arcusid-arcid-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote",
        "https://mcp.arcusid.com/mcp"
      ]
    }
  }
}

claude_desktop_config.json

Step-by-step: add this in Claude

Remote URL or a command on your machine? How the two installs differ

Run on PlugMCP

Host a copy with our keys and logs.

A new server you create. It is not this listing's official endpoint. Use the publisher install when you want their URL and their credentials.

Launch

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Questions

How do I install ArcID?
Copy the http config for Cursor, Claude Desktop, Claude Code, or VS Code on this page. It uses the publisher's install, not a PlugMCP proxy.
Does ArcID need an API key?
The publisher lists these environment variables: ARCID_API_URL.
What transport does ArcID use?
ArcID is reached over HTTP.
When was ArcID last checked?
Last checked 2026-10-16. Look up AI agents on Arc: ERC-8004 identity, feedback, validations and USDC-backed trust scores.

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

arcid-mcp

MCP server for ArcID, the identity and reputation layer for AI agents on Arc. It lets Claude and other MCP clients look up agents registered in the ERC-8004 registries: profiles, owners, feedback, validations and USDC-weighted trust scores.

Read-only. No wallet or API key needed.

Tools

ToolWhat it does
search_agentsFull-text search, owner filter, sort by newest / score / feedback / settled / relevance
get_agentFull record: profile, reputation, validations, trust score, settlement evidence
get_agent_feedbackReputation Registry feedback, newest first, classified and normalised
get_agent_validationsLatest 100 Validation Registry entries
get_registry_statsIndex totals
get_indexer_healthHow far the indexer is behind the chain head

Connect

Remote (claude.ai, ChatGPT, any URL-based client)

https://mcp.arcusid.com/mcp

Streamable HTTP, stateless, no authentication.

  • claude.ai / Claude Desktop: Settings → Connectors → Add custom connector → paste the URL.
  • ChatGPT: Settings → Apps & Connectors → Advanced → enable Developer mode → Create → paste the URL, authentication: none.
  • Claude Code: claude mcp add --transport http arcid https://mcp.arcusid.com/mcp

Local (stdio via npx)

No install step needed; clients run it with npx.

Claude Code

claude mcp add arcid -- npx -y arcid-mcp

Claude Desktop / Cursor / other clients

{
  "mcpServers": {
    "arcid": {
      "command": "npx",
      "args": ["-y", "arcid-mcp"]
    }
  }
}

Configuration

VariableDefault
ARCID_API_URLhttps://api.arcusid.comArcID indexer API. Use http://127.0.0.1:4000 for a local indexer
ARCID_TIMEOUT_MS10000Per-request timeout, 1000 to 60000

Development

git clone https://github.com/arcusid/arcid-mcp.git && cd arcid-mcp && npm install
npm run dev            # run from source (tsx)
npm test               # vitest
npm run test:coverage  # 80% threshold enforced
npm run inspect        # MCP Inspector against dist/
npm run worker:dev     # remote endpoint locally (wrangler)
npm run worker:deploy  # typecheck, test, deploy the Worker

The remote endpoint is worker/index.ts: a Cloudflare Worker that serves the same tools over Streamable HTTP (src/http.ts). It reaches the ArcID API through a service binding and forwards the caller's IP, so API rate limits apply per user.

License

MIT

How do I install ArcID?
Copy the http config for Cursor, Claude Desktop, Claude Code, or VS Code on this page. It uses the publisher's install, not a PlugMCP proxy.
Does ArcID need an API key?
The publisher lists these environment variables: ARCID_API_URL.
What transport does ArcID use?
ArcID is reached over HTTP.
When was ArcID last checked?
Last checked 2026-10-16. Look up AI agents on Arc: ERC-8004 identity, feedback, validations and USDC-backed trust scores.

No tool list yet. Remote servers get one after the first health check.

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