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

976 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
Patent Data

US patent status for agents: applications, office actions, owners, PTAB, claims, monitors.

LegalKnowledge & memory

Requires authNot measured4 / 22Not checked yet
Pedagrade

Check lessons and courses against their learning objectives, with each fix written.

EducationKnowledge & memory

Requires authOutdated checkNot measured4 / 22
People’s Court

Agentic commerce dispute resolution and AI arbitration for marketplaces. Read cases; draft filings.

LegalKnowledge & memory

Requires authOutdated checkNot measured4 / 22
Perfect Memory

Search what you've seen on screen and heard in meetings, recorded on your own Mac or PC.

ProductivityKnowledge & memory

Requires authOutdated checkNot measured4 / 22
Phasio

Quoting, pricing, production and part data for contract manufacturers (3D printing, CNC).

LegalKnowledge & memory

Requires authOutdated checkNot measured4 / 22
Pitstop Free

A memory for your assistant, and your yes on the exact content before it sends or changes anything.

Developer ToolsKnowledge & memory

Requires authOutdated checkNot measured4 / 22
pncp.dev

Query Brazil's public procurement portal (PNCP): tenders, contracts and price records.

LegalKnowledge & memory

Requires authOutdated checkNot measured4 / 22
Pravida — Russian law

Russian law for AI: statutes with edition dates, Supreme Court guidance and court practice.

LegalKnowledge & memory

Requires authOutdated checkNot measured4 / 22
PrawMi

Polish and EU law: statutes, rulings, UODO/UOKiK/KNF, EU regulations, citation checks. Free tier.

LegalKnowledge & memory

Requires authNot measured4 / 22Not checked yet
PrintPal

3D printing: printable models, calculators, troubleshooting wiki, build guides, AI 3D + CAD design.

OtherKnowledge & memory

Requires authNot measured4 / 22Not checked yet
Qanun: Tunisian law

Search Tunisian law and JORT announcements in Arabic and French, with article and JORT citations.

LegalKnowledge & memory

Requires authNot measured4 / 22Not checked yet
Quberi

Search, browse, and save notes into your Quberi knowledge base. Signs in with your Quberi account.

ProductivityKnowledge & memory

Requires authNot measured4 / 22
Recall MCP Server and API by Cotlet

Recall personal AI knowledge base MCP server: save URL, create note, add tags to card.

Developer ToolsKnowledge & memory

Requires authOutdated checkNot measured4 / 22
Recognitium

A memory your AI can prove and the market of the present tense. SHA-256, verifiable offline.

OtherKnowledge & memory

Requires authOutdated checkNot measured4 / 22
Remembite

Nutrition memory for your AI. Your AI does the math, Remembite keeps the record.

OtherKnowledge & memory

Requires authOutdated checkNot measured4 / 22
RepoFold

A cited wiki of your GitHub repo: search, read pages, find symbols and ask, with line citations.

Developer ToolsKnowledge & memory

Requires authNot measured4 / 22Not checked yet
Research papers

arXiv, PubMed, Crossref and OpenAlex scholarly metadata.

OtherKnowledge & memory

Requires authNot measured4 / 22Not checked yet
ResponseHub

Answer security questionnaires and RFPs from your AI knowledge base.

OtherKnowledge & memory

Requires authOutdated checkNot measured4 / 22
Reversa

Research legislation and case law, follow legislative procedures, and act on your Reversa alerts.

LegalKnowledge & memory

Requires authOutdated checkNot measured4 / 22
RFP.ai

Draft cited RFP and security questionnaire answers from your knowledge base, with human review

OtherKnowledge & memory

Requires authNot measured4 / 22Not checked yet
Roamer MCP

Hosted MCP server and Agent Skills for specs, engineering threads, and project memory.

Developer ToolsKnowledge & memory

Requires authNot measured4 / 22
Roster

Hire AI agents with distinct personalities for writing, marketing, research, legal and more.

LegalKnowledge & memory

Requires authNot measured4 / 22Not checked yet
Runlane

Kanban board for teams and coding agents: manage tasks, subtasks, sprints and wiki pages via MCP.

Developer ToolsKnowledge & memory

Requires authNot measured4 / 22Not checked yet
Runlog

Verified registry of third-party-system knowledge — the external-dependency layer for agent memory.

Developer ToolsKnowledge & memory

Requires authNot measured4 / 22Not checked yet

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