MCP HeartbeatTHE MCP OBSERVATORY
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Evidence for your next connection.

Independent measurements of remote MCP servers. Every observation has a timestamp.

Read-only probes

DiscoveryServer directory

Remote MCP servers

Find a server for your workflow, with connection evidence you can inspect.

Connect your agent

1052 servers

Ordered by checks passedClear filters
Dated server measurements. The status describes the last probe or a listed authentication requirement. Checks that have not been measured are not failures. Open a server to inspect the evidence.
Server / capabilityLast probeMedian latencyChecks passedLast checked
Outdated check31 ms12 / 22
Outdated check32 ms12 / 22
Outdated check32 ms12 / 22
Outdated check32 ms12 / 22
Outdated check33 ms12 / 22
Outdated check34 ms12 / 22
Responded35 ms12 / 22
Outdated check35 ms12 / 22
Outdated check35 ms12 / 22
Git Ref Shape

Check whether a git ref name is safe. Name discarded.

Developer ToolsCode & DevOps

Outdated check37 ms12 / 22
Responded41 ms12 / 22
Outdated check41 ms12 / 22
Responded42 ms12 / 22
Outdated check43 ms12 / 22
Outdated check44 ms12 / 22
Outdated check46 ms12 / 22
Outdated check46 ms12 / 22
Outdated check51 ms12 / 22
Outdated check57 ms12 / 22
Outdated check59 ms12 / 22
US EPA Compliance Check MCP

EPA compliance, violations, inspections and penalties for any US ZIP code or company.

Developer ToolsCode & DevOps

Responded69 ms12 / 22
Hyades

Render LaTeX math as pure Unicode text art for terminals, code comments, and emails.

Developer ToolsCommunication & messaging

Outdated check70 ms12 / 22
Outdated check74 ms12 / 22
GitHub Repo Shape

Parse owner and repo from a GitHub URL. Path discarded.

Developer ToolsCode & DevOps

Outdated check83 ms12 / 22

Automated measurements. Not a rating. Unmeasured checks are not failures. How to read the evidence