Deterministic claim verification with receipts across ~60 domains. No model in the loop.
Cloud & Infrav2.0.0streamable-httpnarrowhighway.com repository
| Criterion | Points | Observed |
|---|---|---|
| reachability | 25 / 25 | HTTP 200, initialize accepted in 722ms |
| protocol | 15 / 15 | valid JSON-RPC initialize result, protocolVersion 2024-11-05, serverInfo narrow-highway@2.0.0a0 |
| tooling | 35 / 35 | tools/list OK: 38 tools e.g. "verify"; 38/38 described, 38/38 fully-typed schemas, median description 118 chars |
| latency | 7 / 10 | initialize round-trip 722ms |
| provenance | 15 / 15 | description present; repository linked; version 2.0.0; namespace com.narrowhighway matches endpoint/repo |
Score 97/100 · latency 722ms · 38 tools · auth: open
Claude Code:
claude mcp add --transport http concordance https://narrowhighway.com/mcp
Generic MCP client config:
{ "mcpServers": { "concordance": { "type": "http", "url": "https://narrowhighway.com/mcp" } } }
MCP Queen is a graded index, not a middleman — your agent connects directly to the server above. Check the grade and evidence first; that's the point.
Share this server: permalink https://mcpqueen.com/s/com.narrowhighway/concordance · referral link https://mcpqueen.com/go/com.narrowhighway/concordance (counts as “routed via the queen”).
Live badge, re-probed continuously — put it in your README:
[](https://mcpqueen.com/s/com.narrowhighway/concordance)
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.
Email alerts when the grade changes or the endpoint stops answering. Double-opt-in, one-click unwatch, free while in beta.
| When (UTC) | Grade | Score | Latency |
|---|---|---|---|
| 2026-07-13 04:30 | A | 97 | 722ms |