Look up AI agents on Arc: ERC-8004 identity, feedback, validations and USDC-backed trust scores.
Quick Install
Automated & IDE SetupCopy the AI prompt to install this server into Claude Code, Cursor, or another agent — or use 1-click editor setup below.
One-click editor setup isn’t available for this listing yet — we don’t have a confirmed install command, and we’d rather show nothing than point your editor at the wrong package or host. Follow the project’s own setup instructions, linked above.
Manual Client & Custom JSON ConfigExpand JSON ▾
No confirmed setup config for this listing yet. We only publish a config block when the install details come from the project itself — its README, its docs, or a verified owner. We haven’t found those for ArcID, and we’d rather show nothing than a guess you’d paste into your client. Follow the project’s own setup instructions for the current steps.
Documentation Overview
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
| Tool | What it does |
|---|---|
search_agents | Full-text search, owner filter, sort by newest / score / feedback / settled / relevance |
get_agent | Full record: profile, reputation, validations, trust score, settlement evidence |
get_agent_feedback | Reputation Registry feedback, newest first, classified and normalised |
get_agent_validations | Latest 100 Validation Registry entries |
get_registry_stats | Index totals |
get_indexer_health | How far the indexer is behind the chain head |
Connect
Remote (claude.ai, ChatGPT, any URL-based client)
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 Desktop / Cursor / other clients
Configuration
| Variable | Default | |
|---|---|---|
ARCID_API_URL | https://api.arcusid.com | ArcID indexer API. Use http://127.0.0.1:4000 for a local indexer |
ARCID_TIMEOUT_MS | 10000 | Per-request timeout, 1000 to 60000 |
Development
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
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