Skip to content
The MCP Census logo

The MCP Census MCP server

Which servers in the official MCP registry are The MCP Census's own, whether they answer, and what they offer. A program checked each of these, nobody copied them from a product page.

read 2026-10-24

← Back to The MCP Census

Whose server it is
  • Registry namecom.mcpcensus/censusverified in the MCP registry

The registry name sits under mcpcensus.com. The registry only lets a publisher use that namespace after proving control of the domain through DNS or HTTP.

When we asked itchecked 2026-10-24
  • Stateanswerschecked 2026-10-24
  • Tools15
  • Server calls itselfmcp-census
  • Server version1.4.0
  • Protocol version2025-06-18

On 2026-10-24 the server answered initialize and tools/list without a sign-in. First answer in 60 ms.

Should an agent connect itNot proven either way yet
  • Its tools do every use case we checked: check an MCP server before installing it; audit an MCP config file for risky servers.
  • Checked on 3 of the 7 days it takes to judge reliability.

Once connected

  • For "check an MCP server before installing it", the likely first call is census_preflight.
  • For "audit an MCP config file for risky servers", the likely first call is census_audit_config.
  • Parameters are untyped or undescribed in 4 of 15 tools: check arguments before calling.

Said by rules from the measurements above. The likely first call is a model's pick from the tool list; read its description before relying on it.

Measured dailydaily checks: 3, the first on 2026-10-24
  • INITE MCP scoreafter a weeka score needs 7 daily checks: 3 so far
  • What an agent can do with it2 of 2 use cases
  • Answeredmeasuring3 of the 7 daily checks it takes to print a share
  • Median first answer83 ms
  • Space in an agent's context≈ 2,191 tokensthe definitions of all its tools (15), which an agent carries on every turn
  • Tool definitionsB · 83 of 100
  • Typed results2 of 15 toolsdeclared outputSchema: results come typed, read once
  • Parameters without a description: in 4 of 15
  • Not saying whether it only reads or can destroy: 11 of 15

What an agent can do with it

  • can do · check an MCP server before installing it
  • can do · audit an MCP config file for risky servers
  • not sure · watch servers for archived repos or deprecated packages

Each of the product's use cases, put to Jev against this server's tool list: can an agent do it with these tools?

Worth a look

None of the five warning signs in these definitions.

A program checks the server once a day: initialize and tools/list, no model. Tokens are the definitions' length at about four characters a token. The grade averages six checks of every tool's name, description, schema and annotations; it says how well the tools are described, not whether they work. The score weighs what was measured and nothing else: answering (30%), doing the product's job (25%), definitions (20%), context (10%) and use (15%). A part that was not measured is left out, and a hidden instruction caps the score at 40. The state of vendors' MCP servers: method and numbers →

Tools it offers15 tools · read 2026-10-24
  • 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 |…

  • 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…

  • 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…

  • 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…

  • 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…

  • 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…

  • 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…

  • 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…

How to connect

Add the server to your MCP client config. Claude Desktop, Cursor and most other clients read this shape:

{
  "mcpServers": {
    "census": {
      "type": "http",
      "url": "https://api.mcpcensus.com/mcp"
    }
  }
}

Add it

Claude Code, in a terminal

claude mcp add --transport http mcpcensus https://api.mcpcensus.com/mcp

Add to CursorAdd to VS Code

claude.ai, ChatGPT and other clients: add https://api.mcpcensus.com/mcp as a custom connector in the settings.

OpenAPI spec

13 paths, read 2026-10-24. Open the spec ↗

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.