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The MCP Census

com.mcpcensus/census · v1.4.0

Vet any MCP server before you depend on it. Stamp: PASS, REVIEW, or BLOCK.

Connect Remote server

Terminal
claude mcp add --transport http census https://api.mcpcensus.com/mcp
~/.cursor/mcp.json
{
  "mcpServers": {
    "census": {
      "url": "https://api.mcpcensus.com/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "census": {
      "type": "http",
      "url": "https://api.mcpcensus.com/mcp"
    }
  }
}
Claude Desktop
Settings > Connectors > Add custom connector
URL: https://api.mcpcensus.com/mcp

Tools 15 found in our last check

  • 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 fact-based health verdict (healthy | issues | unknown).

  • 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_brand (we recognize a strong product but it has no official MCP — e.g. CodeRabbit)…

  • 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 count, and captured_at. No invented metrics.

  • 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).

  • 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 a brand_audit punch list.

  • 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. Prefer webhook_url (https) so your agent can receive POST callbacks; email op…

  • census_watch_list

    List active per-server watches for this API key. Requires x-api-key.

  • census_watch_unsubscribe

    Deactivate a watch by id. Requires x-api-key that owns the watch.

  • 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 security audit. refresh=if_stale requires x-api-key.

  • census_policy_list

    List the exact immutable Preflight v1 built-in policy objects, canonical ruleset, and policy digests. Unmetered.

  • 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.

  • 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 connect without a stamp. PASS is not a malware scan or permission review.

  • 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 1.

  • 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, npx → npm package, uvx → PyPI package) and returns one PASS / REVIEW / BLOCK…

  • 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, registry_status, spec_era_change. Cursor-paginated: pass next_cursor back as since.…

Details

Endpointhttps://api.mcpcensus.com/mcp (Streamable HTTP)
First published30 Aug 2026
Last updated30 Aug 2026
Registry namecom.mcpcensus/census

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