The MCP Census
mcp remote · streamable-http · v1.4.0 · source: crawl
https://api.mcpcensus.com/mcp
Vet any MCP server before you depend on it. Stamp: PASS, REVIEW, or BLOCK.
Works
100
Verified Oct 31, 2026 · p50 191 ms · p95 201 ms
Worth
no data
No outcomes reported yet. Agents report through report_outcome after a find_agents call.
Checks
| Check | Weight | Result | Evidence |
|---|---|---|---|
| reachable | 20 | pass | 3 of 3 handshakes succeeded; server 'mcp-census' |
| tools_listed | 15 | pass | 15 tools |
| schema_complete | 15 | pass | 14 of 15 tools have a description and a typed schema |
| latency_p50 | 10 | pass | p50 191 ms |
| latency_p95 | 5 | pass | p95 201 ms |
| error_free | 10 | pass | 0 of 3 attempts failed |
| auth_posture | 10 | pass | https, open |
| injection_scan | 10 | pass | no patterns found |
| scope | 5 | pass | no execution-style tools |
Unknown counts as fail; n/a is left out of the denominator. How the weights work.
Tools (15)
| Name | Description | Schema |
|---|---|---|
census_lookup | Get the live health verdict for one MCP server by its exact registry name (e.g. 'io.github.owner/name'). Returns stars, last-push recency, gone/archived/deprecated flags, name-collision count, and a f | typed |
census_search | Search MCP servers by keyword or partial name (e.g. 'github', 'postgres'). Returns ranked matches with health/trust. Also returns: resolved_query (auto typo fix), disambiguate (when unsure), known_bra | typed |
census_stats | Ecosystem headline numbers from the live census (same payload as GET /v1/stats). Unmetered. Returns total servers, healthy/issues counts, popular (gh_stars>=1000), remote-capable count, github-linked | typed |
census_recent | Newest MCP servers by real first_seen_at (same payload as GET /v1/recent). Unmetered. Only rows with a known first-seen date — never invents or guesses discovery times. Optional limit 1–50 (default 20 | typed |
census_coverage | Public transparency report (same payload as GET /v1/coverage). Unmetered. Live D1 census/identity/remote/protocol/adoption/pipeline counts plus method notes — never invents completeness percentages or | typed |
census_watch_subscribe | Subscribe this agent (or a human email) to alerts for ONE specific MCP server. Fires only on real observed changes: remote_down, remote_up, health_change, verified_change, security. Requires x-api-key | typed |
census_watch_list | List active per-server watches for this API key. Requires x-api-key. | typed |
census_watch_unsubscribe | Deactivate a watch by id. Requires x-api-key that owns the watch. | typed |
census_preflight | Evaluate one exact MCP server under a documented built-in install policy. Returns PASS, REVIEW, or BLOCK with evidence reasons, freshness, digests, and explicit limits. This is a first gate, not a sec | typed |
census_policy_list | List the exact immutable Preflight v1 built-in policy objects, canonical ruleset, and policy digests. Unmetered. | typed |
census_credits | Show remaining Census credits for this API key (wallet after the UTC-month grant). Unmetered. Without a key, returns anonymous unique-per-day remaining — not a wallet. | typed |
census_stamp | Census stamp for one exact MCP server under a built-in policy. Same input as census_preflight. Returns the preflight body plus compact CENSUS-STAMP/1 text and stamp_json. Cost matches preflight. Never | typed |
census_lookalikes | Contested identity for one exact server_name: official_for, name_collision_count, and up to 10 other census server_name values sharing the same namespace brand or tail. Never invents lookalikes. Cost | typed |
census_audit_config | Audit a whole MCP client config in one call (.mcp.json, claude_desktop_config.json, .cursor/mcp.json, .vscode/mcp.json, Codex config.toml text). Resolves every entry without guessing (url → remote_url | incomplete |
census_changes | The Census change feed (CENSUS-CHANGES/1): observed transitions across every server — server_new, remote_down, remote_up, tools_changed, health_change, verified_change, security, endpoint_moved, regis | typed |
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Paste into your README. It updates on every verification.
[](https://app.agent-xm.com/a/com-mcpcensus-census-2)
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