The MCP Census
Check whether an MCP server is safe to install, with registry, security and policy records. Remote MCP at https://api.mcpcensus.com/mcp.
ホスト型 MCP サーバー
npx add-mcp 'https://api.mcpcensus.com/mcp'Claude Code、Codex、Cursor などにインストールできます
ドキュメント
The MCP Census developer portal
This portal is how you call The MCP Census from an agent or from CI. The live API is the sandbox. Unmetered stats need no account.
curl -s https://api.mcpcensus.com/v1/stats
Human page: https://mcpcensus.com/developers.
Product: The MCP Census (also MCP Census, mcpcensus). Domain: https://mcpcensus.com. Contact: info@mcpcensus.com.
Quickstart
- Optional key: https://mcpcensus.com/account — header
x-api-key. - Agents: add MCP
https://api.mcpcensus.com/mcp(see https://mcpcensus.com/agent-setup/prompt.md). - REST:
GET https://api.mcpcensus.com/v1/search?q=thenPOST /v1/preflightorGET /v1/stampwith one exact canonical name. - Stop on BLOCK. Ask a human on REVIEW. PASS is not a sandbox. Never install from a Census result alone.
Developer resources
- Human API docs: https://mcpcensus.com/api
- OpenAPI spec: https://mcpcensus.com/openapi.json
- Auth / API keys: https://mcpcensus.com/account
- MCP server: https://api.mcpcensus.com/mcp
- Webhooks (watches): https://mcpcensus.com/api#watch
- Agent instructions (when to use): https://mcpcensus.com/agent-instructions.md
- Agent map: https://mcpcensus.com/llms.txt
- CI action: https://mcpcensus.com/agent-setup/census-preflight.yml
- Pricing / credits: https://mcpcensus.com/pricing
- Policies: https://mcpcensus.com/policies
Sandbox
No separate staging host. The live MCP Census API is the sandbox.
- Anonymous: 10 unique lookups/day per IP
- Free account: 1,000 credits/UTC month. Builder $19/mo, pack $9, team $49/mo
- Search/lookup 1, preflight/stamp 5, watch 10. Repeats same UTC day are free
- Empty wallet: HTTP 402
payment_required→ https://mcpcensus.com/pricing - Unmetered:
/v1/stats,/v1/recent,/v1/coverage,/v1/policies,census_credits
curl -s https://api.mcpcensus.com/v1/stats
curl -s "https://api.mcpcensus.com/v1/search?q=github"
curl -s https://api.mcpcensus.com/v1/policies
Auth
Keys are minted on the account page. Send x-api-key. Anonymous works until the daily unique cap. Lost keys are emailed, never shown in page HTML.
Stamp: GET /v1/stamp or MCP census_stamp. Lookalikes: census_lookalikes. Wallet: census_credits / GET /v1/credits.
Webhooks
POST https://api.mcpcensus.com/v1/watch (API key). Events only on observed transitions: remote_down / remote_up, health_change, verified_change, security. Headers: X-Census-Event, X-Census-Signature (sha256 HMAC), X-Census-Watch-Id.