Find known subdomains of a domain. Passive data; may include historic entries. List or count.
Cloud & Infrav1.0.1streamable-httpapi.subdomain.app
| Criterion | Points | Observed |
|---|---|---|
| reachability | 25 / 25 | HTTP 200, initialize accepted in 833ms |
| protocol | 15 / 15 | valid JSON-RPC initialize result, protocolVersion 2025-06-18, serverInfo subdomain-app@1.0.0 |
| tooling | 35 / 35 | tools/list OK: 2 tools e.g. "find_subdomains"; 2/2 described, 2/2 fully-typed schemas, median description 604 chars |
| latency | 7 / 10 | initialize round-trip 833ms |
| provenance | 12 / 15 | description present; no repository URL; version 1.0.1; namespace app.subdomain matches endpoint/repo |
Score 94/100 · latency 833ms · 2 tools · auth: open
Claude Code:
claude mcp add --transport http subdomains https://api.subdomain.app/mcp
Generic MCP client config:
{ "mcpServers": { "subdomains": { "type": "http", "url": "https://api.subdomain.app/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/app.subdomain/subdomains · referral link https://mcpqueen.com/go/app.subdomain/subdomains (counts as “routed via the queen”).
Live badge, re-probed continuously — put it in your README:
[](https://mcpqueen.com/s/app.subdomain/subdomains)
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 |
|---|---|---|---|
| 2026-07-12 19:18 | A | 94 | 833ms |