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.

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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
Savantis Memory

One user-owned memory shared across AI assistants: recall, spaces, and confirmed references.

OtherKnowledge & memory

Requires authOutdated checkNot measured4 / 22
ScopeAI GEO Observation

GEO brand visibility and AI citation evidence. Free capability discovery and request matching.

OtherKnowledge & memory

Requires authNot measured4 / 22Not checked yet
SelskabsInfo — Danish company data

Danish company data from CVR: owners, management, accounts, credit risk, court cases, bankruptcies.

LegalKnowledge & memory

Requires authOutdated checkNot measured4 / 22
SessionKeeper

Dungeons & Dragons (D&D) and TTRPG companion: SessionKeeper sessions, NPCs, wiki, DM prep.

Developer ToolsKnowledge & memory

Requires authOutdated checkNot measured4 / 22
Shared team memory for agents

Shared project-scoped memory for agent teams: typed records, corroboration, handoff briefs.

Developer ToolsKnowledge & memory

Requires authOutdated checkNot measured4 / 22
SignSimple

Send PDFs for legally binding e-signature, free and unlimited. Track status; free legal templates.

LegalKnowledge & memory

Requires authNot measured4 / 22Not checked yet
Silent tool-failure outcome monitor

Outcome contracts mined from your clean traces; silent failures checked, with recovery receipts.

LegalKnowledge & memory

Requires authOutdated checkNot measured4 / 22
simulis — marketing brain

A business's marketing memory: campaigns, results, decisions, brand and audience knowledge.

Marketing & SalesKnowledge & memory

Requires authNot measured4 / 22Not checked yet
Sivella

Read and update a Sivella household: tasks, calendar, budget, reminders, decisions and memory.

ProductivityKnowledge & memory

Requires authOutdated checkNot measured4 / 22
Slab MCP Server and API by Cotlet

Slab team knowledge base MCP server: search posts, read post, create post, verify post.

Developer ToolsKnowledge & memory

Requires authOutdated checkNot measured4 / 22
socs.fr, la commande publique française

French public procurement: open tenders from BOAMP, public buyers, and contracts won by a company.

LegalKnowledge & memory

Requires authOutdated checkNot measured4 / 22
SOKI (想起) — Personal Memory

Personal memory outside the AI. Due dates, loose ends and old notes come back on their own.

ProductivityKnowledge & memory

Requires authOutdated checkNot measured4 / 22
Solved Tax & Legal

UK tax and legal research grounded in legislation, HMRC guidance and case law, with citations.

LegalKnowledge & memory

Requires authOutdated checkNot measured4 / 22
Specter Cite

German and EU law for AI assistants: statutes and case law in current wording, with sources.

LegalKnowledge & memory

Requires authOutdated checkNot measured4 / 22
SPEKTRUM MCP – Swiss spatial planning

Swiss spatial planning: official geodata, ÖREB cadastre, zoning, building zone capacity, case law

LegalKnowledge & memory

Requires authNot measured4 / 22
SpendQuery

US federal spending, contracts, SAM.gov notices, FAR clauses and SBIR awards, in plain English.

LegalKnowledge & memory

Requires authNot measured4 / 22Not checked yet
SPM

Agent memory that refuses to guess: evidence-gated recall, exact-source reads, verifiable deletion.

Developer ToolsKnowledge & memory

Requires authNot measured4 / 22Not checked yet
Squirrel Brain

Give your AI agent a memory and body on your iPhone: set alarms, ring your phone, over MCP.

Developer ToolsKnowledge & memory

Requires authNot measured4 / 22Not checked yet
Station Zero

One MCP server for the services your AI needs: memory, files, Microsoft 365, kanban and more.

Developer ToolsKnowledge & memory

Requires authOutdated checkNot measured4 / 22
STEM — Persistent AI Memory

Persistent memory and shared context across compatible AI assistants, with account-scoped OAuth.

OtherKnowledge & memory

Requires authOutdated checkNot measured4 / 22
Sternly

Checks finished AI work after it is done: figures, citations and quotations, with a signed record.

OtherKnowledge & memory

Requires authNot measured4 / 22Not checked yet
Syfert Legal Research

Verify legal citations, case treatment, quotes and whole briefs against 10.7M U.S. opinions

LegalKnowledge & memory

Requires authNot measured4 / 22Not checked yet
Syntology

Provenance-tagged knowledge graph of AI/ML research: papers, citations, methods, code.

OtherKnowledge & memory

Requires authNot measured4 / 22Not checked yet
TaiLexi AI

Taiwan legal research: court judgments, statutes, and interpretations. 台灣判決、法條、函釋、釋字搜尋。

LegalKnowledge & memory

Requires authOutdated checkNot measured4 / 22

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