io.github.arcusid/arcid-mcp
ArcID
Look up AI agents on Arc: ERC-8004 identity, feedback, validations and USDC-backed trust scores.
alive probed 2026-10-05 · HTTP 200
6tools
1.3ktokens in Claude Opus 5.5
1.3ktokens in Claude Code
0.6 %of a 200k context window
718o200k_base estimate
624 msto initialize
450 msto list tools
- Endpoint
- https://mcp.arcusid.com/mcp (streamable-http)
- Host
- mcp.arcusid.com
- Protocol
- 2025-11-25
- Reports itself as
- arcid 0.2.0
- Capabilities
- tools
- Instructions
- 255 characters
- Claude count
- Claude Opus 5.5, measured 2026-10-05. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/arcusid/arcid-mcp
- Website
- https://arcusid.com/mcp
- Registry
- active, updated 2026-09-27 · registry entry
- Reachable
- 6 of the last 6 probes
Most expensive tools
| Tool | Tokens (o200k) | Share of this server |
|---|---|---|
| search_agents | 257 | 36 % |
| get_agent_feedback | 175 | 24 % |
| get_agent | 105 | 15 % |
| get_agent_validations | 96 | 13 % |
| get_indexer_health | 45 | 6 % |
History
We add a row when the result changes. A server with no change keeps its last row.
| Probed | Result | Init | Tools | Claude | o200k |
|---|---|---|---|---|---|
| 2026-10-05 14:32 | alive | 624 ms | 6 | 1.3k | 718 |
| 2026-10-05 00:32 | alive | 379 ms | 6 | 718 | |
| 2026-10-04 10:03 | alive | 893 ms | 6 | 718 | |
| 2026-10-04 07:57 | alive | 778 ms | 6 | 718 | |
| 2026-10-03 20:36 | alive | 624 ms | 6 | 718 | |
| 2026-10-03 17:52 | alive | 505 ms | 6 | 718 |
Badge and feed
[](https://mcpcost.ulehla.dev/s/io.github.arcusid/arcid-mcp)
An entry for every probe that changed the result, the tool count or the token cost: Atom feed. Add it to a feed reader or a Slack RSS app to hear when the server stops answering or its tool set grows.