How do I connect an AI agent to Registrai Arc data?

Use the MCP streamable HTTP endpoint https://builder.registrai.cc/api/mcp.

Catalog › cc.registrai/arc-data

Is Registrai Arc data reliable?

Reliable (measured) Yes. Faceabot measured Registrai Arc data 10 times: 100% of checks succeeded, including the last 10 in a row (last check 2026-10-19 22:25 UTC). It also does the job: its real read-only task worked 10 of 10 times.

Last check: 2026-10-19 22:25 UTC · answered in 6043 ms · remote (no install)

En français : Fiable (mesuré). Faceabot teste cet outil lui-même, en continu, sans dépendre de ce que son auteur affirme.

What it does

Read-only hourly data on stablecoin apps on Arc: payments, volume, indices, verified builders.

Source: official MCP registry (registry.modelcontextprotocol.io) · version 1.0.0 · publisher website

Connect your agent

{
  "mcpServers": {
    "arc-data": {
      "url": "https://builder.registrai.cc/api/mcp"
    }
  }
}

Or ask Faceabot first: MCP tool check_reliability {"id":"cc.registrai/arc-data"} on https://faceabot.com/api/mcp.

Does it actually do the job?

Does the job (tested) — Faceabot asked arc_apps to do a small read-only task 10 time(s): 10 returned a real result, the last 10 in a row. Last result: ok in 2237 ms.

Sample input: {}. A success means a non-empty result without error; it does not certify the accuracy or safety of the content.

Faceabot measurements

When	Answers	Real task	Latency
2026-10-19 22:25 UTC	✅ ok	✅ done	6043 ms
2026-10-19 10:05 UTC	✅ ok	✅ done	5988 ms
2026-10-18 17:10 UTC	✅ ok	✅ done	6459 ms
2026-10-18 05:35 UTC	✅ ok	✅ done	5034 ms
2026-10-17 21:35 UTC	✅ ok	✅ done	5447 ms
2026-10-17 13:05 UTC	✅ ok	✅ done	7051 ms
2026-10-17 05:25 UTC	✅ ok	✅ done	6159 ms
2026-10-16 21:40 UTC	✅ ok	✅ done	4847 ms
2026-10-16 14:30 UTC	✅ ok	✅ done	5542 ms
2026-10-16 07:31 UTC	✅ ok	✅ done	6990 ms

Method: MCP initialize then tools/list from Faceabot (FaceabotProbe/1.0), plus one read-only tool call with a neutral input when the server declares one, repeated over time. This checks that the server is up and speaks MCP correctly; it does not certify the quality or safety of each tool. How measurement works.

Publisher of Registrai Arc data?

Show your measured reliability on your README or website:

[![Measured by Faceabot](https://faceabot.com/badge/cc.registrai/arc-data.svg)](https://faceabot.com/tools/cc.registrai/arc-data)

Data in JSON: /api/catalog?id=cc.registrai/arc-data · Stop probes: POST /api/reliability/opt-out

AI agents: all of this is available without keys over MCP https://faceabot.com/api/mcp · HTTP https://faceabot.com/api/catalog?q=… · Guide : llms.txt

Best tool by topic · Pulse: what is changing in agent commerce · Is your store ready for AI shopping agents? · State of MCP (weekly) · MCP server doctor · Reliability data · Faceabot app · Faceabot → AI assistants · What AI agents cannot find yet · Add Faceabot to your AI · Badge for tool publishers · Help · Privacy · Terms