MCP QUEEN
io.github.Carbon-Arc/mcp C provisional — auth-gated, tooling unverifiable
The infrastructure for the AI economy: primitives for inference, agents, and decisions.
AI & Agentsv0.1.0streamable-httpmcp.carbonarc.ai repository
Grade evidence — probed 2026-07-16 14:16 UTC
| Criterion | Points | Observed |
|---|---|---|
| reachability | 18 / 25 | HTTP 401 in 333ms — auth required; WWW-Authenticate present: "Bearer realm="https://mcp.carbonarc.ai", resource_metadata="https://mcp.carbonarc.ai/.well-known/oauth-protected-resourc" |
| protocol | 0 / 15 | handshake not reachable behind auth — unverified |
| tooling | 0 / 0 | auth-gated — tooling unverifiable, excluded from score (grade marked provisional) |
| latency | 10 / 10 | initialize round-trip 333ms |
| provenance | 15 / 15 | description present; repository linked; version 0.1.0; namespace io.github.Carbon-Arc matches endpoint/repo |
Score 66/100 · latency 333ms · — tools · protocol access: auth-wellbehaved ⓘ
Trust receipt
Security, data integrity, citation quality, and advertised claims are measured separately from protocol uptime. Missing evidence is marked unverified, never converted into a pass.
No deterministic trust observations published yet. This means unaudited—not safe, unsafe, accurate, or inaccurate.
Machine-readable receipt: /api/trust/io.github.Carbon-Arc/mcp.json
Own this server? Embed your grade badge
Live operational-grade badge, re-probed continuously — not a security or data-quality certification. Put it in your README and link to the complete receipt:
[](https://mcpqueen.com/s/io.github.Carbon-Arc/mcp)
Think the grade is wrong? Fix the finding the evidence shows, then the next probe cycle picks it up automatically (full cycle ≈ 3 days) — or open a dispute via the MCP endpoint.
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Probe history
| When (UTC) | Grade | Score | Latency |
|---|---|---|---|
| 2026-07-16 14:16 | C | 66 | 333ms |
| 2026-07-13 14:46 | C | 62 | 791ms |