MCP HeartbeatTHE MCP OBSERVATORY
Public workspace

Explore

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

1410 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
Nihr

UK NIHR (National Institute for Health and Care Research) open-data MCP.

Developer ToolsCode & DevOps

Outdated check97 ms13 / 22
New Jersey Code

New Jersey Statutes (N.J.S.A.) — section by citation (with amendment history), plus topic search.

LegalCode & DevOps

Outdated check97 ms13 / 22
Wikipedia

Wikipedia MCP — wraps Wikipedia REST API (free, no auth)

Developer ToolsCode & DevOps

Outdated check98 ms13 / 22
South Dakota Code

South Dakota Codified Laws — state statutes by citation and by topic. Fleet #2748.

LegalCode & DevOps

Outdated check99 ms13 / 22
Maryland Code

Maryland Code — state statutes by citation.

LegalCode & DevOps

Outdated check99 ms13 / 22
Nci Evs

NCI Thesaurus concepts and the other cancer-research vocabularies served by NCI Enterprise…

Developer ToolsCode & DevOps

Outdated check100 ms13 / 22
Vermont Code

Vermont Statutes Annotated — state statutes by citation.

LegalCode & DevOps

Outdated check101 ms13 / 22
Pennsylvania Code

Pennsylvania Consolidated Statutes — state statutes by citation.

LegalCode & DevOps

Outdated check101 ms13 / 22
Opencitations

OpenCitations MCP — citation index (COCI + general Index API).

Developer ToolsCode & DevOps

Outdated check102 ms13 / 22
Sk Rpo

RPO — Register právnických osôb, podnikateľov a orgánov verejnej moci (Register of Legal Entities…

LegalCode & DevOps

Outdated check103 ms13 / 22
Massachusetts Code

Massachusetts General Laws — state statutes by citation.

LegalCode & DevOps

Outdated check103 ms13 / 22
Fractal Process Intelligence

Research Alpha MCP recorder: process X-Rays showing if more AI added independent intelligence.

Developer ToolsCode & DevOps

Outdated check104 ms13 / 22
Wisconsin Code

Wisconsin Statutes — state statutes by citation.

LegalCode & DevOps

Outdated check104 ms13 / 22
Stat Gl

Statistics Greenland (Grønlands Statistik) PxWeb MCP.

Data & AnalyticsCode & DevOps

Outdated check104 ms13 / 22
New York Code

New York Consolidated Laws — state statutes by citation.

LegalCode & DevOps

Outdated check104 ms13 / 22
Missouri Code

Missouri Revised Statutes — state statutes by citation.

LegalCode & DevOps

Outdated check104 ms13 / 22
Wipo Pearl

WIPO Pearl MCP — scientific, technical and IP legal terminology database.

Developer ToolsDatabase

Outdated check105 ms13 / 22
West Virginia Code

West Virginia Code — state statutes by citation.

LegalCode & DevOps

Outdated check106 ms13 / 22
Tennessee Code

Tennessee Code Annotated (T.C.A.) — Tennessee state statutes by citation and by topic. Fleet #2885.

LegalCode & DevOps

Outdated check106 ms13 / 22
Montana Code

Montana Code Annotated — state statutes by citation.

LegalCode & DevOps

Outdated check107 ms13 / 22
Ibge Br

IBGE (Instituto Brasileiro de Geografia e Estatística) MCP. Brazil's official statistics agency.…

GovernmentCode & DevOps

Responded108 ms13 / 22
Us Code

US Code — the text of federal statutes, by citation.

LegalCode & DevOps

Outdated check108 ms13 / 22
Kentucky Code

Kentucky Revised Statutes (KRS) — state statutes by citation and by topic.

LegalCode & DevOps

Outdated check108 ms13 / 22
Writing Style Checker

Prose linter + AI-slop detector: weasel words, passive voice, hedging, and research-cited AI tells

Developer ToolsCode & DevOps

Outdated check109 ms13 / 22

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