mcpcensus

Trust before you install

Security and Certainty for 18,000+ MCP servers — health and ownership with evidence, before you install.

API / MCP·Lookup·watch alerts·free · no signup

manual install·prompt.md·llms.txt

15,382
servers
10,989
GitHub
2,442
issues
7,203
remotes

live from the census API

new in the registry
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Catalogs list. We check.

Vendor’s server or a clone? Still maintained? What’s the evidence?

Foragents · builders · anyone installing MCP
Notfake social proof · black-box scores

Why this exists → · Coverage →

agent watches

If it goes down, your agent hears it

Subscribe to a specific MCP server. We alert only when something real changes on that server — remote down/up, health flip, verification legs, OSV security. Webhook for agents, email optional.

HowPOST /v1/watch or census_watch_subscribe · API key · per-server
Nota firehose of the whole registry · not “still fine” spam

Watch docs → · llms.txt for agents →

findings

16% have a verified problem

Gone repo, archived, deprecated package, or no push in 6+ months. Unknown stays unknown.

Healthy (repo active <6mo)Healthy (repo active <6mo): 10,44410,444Unknown (insufficient evidenUnknown (insufficient evidence): 2,4962,496Has verified issuesHas verified issues: 2,4422,442
View as table
VerdictServers
Healthy (repo active <6mo)10,444
Unknown (insufficient evidence)2,496
Has verified issues2,442
Problems by type · categories
GitHub repo gone (deleted/prGitHub repo gone (deleted/private): 1,8801,880No repo push in 6+ monthsNo repo push in 6+ months: 299299npm package deprecatednpm package deprecated: 218218registry_deprecatedregistry_deprecated: 166166GitHub repo archivedGitHub repo archived: 126126npm package missingnpm package missing: 2525PyPI package missingPyPI package missing: 1515
View as table
ProblemServers
GitHub repo gone (deleted/private)1,880
No repo push in 6+ months299
npm package deprecated218
registry_deprecated166
GitHub repo archived126
npm package missing25
PyPI package missing15
dev-toolsdev-tools: 11,69711,697ai-mlai-ml: 1,9431,943api-integrationapi-integration: 1,6721,672securitysecurity: 864864financefinance: 847847communicationcommunication: 544544mediamedia: 536536files-documentsfiles-documents: 461461data-analyticsdata-analytics: 406406databasesdatabases: 399399weather-geoweather-geo: 377377productivityproductivity: 302302
View as table
CategoryServers
dev-tools11,697
ai-ml1,943
api-integration1,672
security864
finance847
communication544
media536
files-documents461
data-analytics406
databases399
weather-geo377
productivity302

Full report → · Live coverage →

use it

Free to look up. Agents at scale.

Freelookup · 10/day · no signup
Account100/day · personal key
API + MCPcustom · 200/day

Open lookup API access

faq

Is this server safe to depend on?

Look it up. You get healthy / issues / unknown from repo, package, and registry facts. Try free →

Can my agent check automatically?

Yes. MCP tools census_search, census_lookup, and census_watch_* for per-server alerts. Docs →

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Support is human. Data is public sources; the product is the live check.

agent-setup/prompt.md — paste Fetch into your agent · llms.txt · manual install →