MCP QUEEN
io.github.doc2mcp/langchain C
MCP server for langchain documentation, generated by doc2mcp.
Cloud & Infrav1.0.1781396655streamable-httpdoc2mcp.site repository
Grade evidence — probed 2026-07-14 00:15 UTC
| Criterion | Points | Observed |
|---|---|---|
| reachability | 25 / 25 | HTTP 200, initialize accepted in 207ms |
| protocol | 15 / 15 | valid JSON-RPC initialize result, protocolVersion 2025-06-18, serverInfo doc2mcp@1.0.0 |
| tooling | 0 / 35 | tools/list failed: HTTP 401 {"code":-32003,"message":"Unauthorized: missing or invalid token"} |
| latency | 10 / 10 | initialize round-trip 207ms |
| provenance | 15 / 15 | description present; repository linked; version 1.0.1781396655; namespace io.github.doc2mcp matches endpoint/repo |
Score 65/100 · latency 207ms · — tools · protocol access: open ⓘ
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.doc2mcp/langchain.json
Connect your agent
Claude Code:
claude mcp add --transport http langchain https://doc2mcp.site/api/mcp/0cd2635e-0cd5-4712-b33c-13b10c547e42/mcp
Generic MCP client config:
{ "mcpServers": { "langchain": { "type": "http", "url": "https://doc2mcp.site/api/mcp/0cd2635e-0cd5-4712-b33c-13b10c547e42/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/io.github.doc2mcp/langchain · referral link https://mcpqueen.com/go/io.github.doc2mcp/langchain (counts as “routed via the queen”).
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.doc2mcp/langchain)
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.
Queen Watch
Email alerts when the grade changes or the endpoint stops answering. Double-opt-in, one-click unwatch, free while in beta.
Probe history
| When (UTC) | Grade | Score | Latency |
|---|---|---|---|
| 2026-07-14 00:15 | C | 65 | 207ms |