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
Attention Trends

Topic popularity, interest over time and trending topics from Wikipedia pageviews (x402 paid).

Finance & CryptoKnowledge & memory

Responded238 ms13 / 22
DavisStirling

California HOA law: Davis-Stirling Act text and 189 court decisions. Read-only, no auth.

LegalKnowledge & memory

Responded255 ms13 / 22
Kizupi

The math tutor that asks why, for grades 1 to 6, with free printable word-problem worksheets.

EducationKnowledge & memory

Responded258 ms13 / 22
Vitef

French admin chores: law-citing letters, calculators, quotes. Démarches en France, vite fait.

LegalKnowledge & memory

Responded260 ms13 / 22
Zoning Signal

Planning and zoning records: 25 jurisdictions in Lake, Orange, Osceola, Polk, Seminole counties, FL

LegalKnowledge & memory

Responded263 ms13 / 22
io.github.UnityNodes/blobpedia

Celestia knowledge base: CIPs, docs, forum, videos, GitHub, plus live on-chain state

Finance & CryptoKnowledge & memory

Responded264 ms13 / 22
nu:legal Deutsches Recht

German federal and Land statutes plus court decisions for agents. Keyless, read-only.

LegalKnowledge & memory

Responded265 ms13 / 22
Involucrados: Spain public spending data

Spain's public spending from official sources: state budget, 8,100 councils, grants and contracts

LegalKnowledge & memory

Responded268 ms13 / 22
ImmigrationLayer

USCIS fees, processing times, form editions, alerts, and the Visa Bulletin. Not legal advice.

LegalKnowledge & memory

Responded287 ms13 / 22
BailaYa MCP by usefulapi

Read schedules, students and packages; add or change classes, events and students in BailaYa.

EducationKnowledge & memory

Outdated check287 ms13 / 22
rust.wiki

Live data for the game Rust: skin prices and history, items, item store, loot tables, servers.

OtherKnowledge & memory

Responded291 ms13 / 22
Kolo Verify services

Expert checks for Indian homeowners before they build: plans, estimates, quotes, contracts.

LegalKnowledge & memory

Responded297 ms13 / 22
فکرستان (Fekrestan)

Public pages of fekrestan.com (Persian learning, grades 3–9) for parents and teachers. Read-only.

EducationKnowledge & memory

Responded305 ms13 / 22
Caper Wiki

Read Caper's wiki and DAO on-chain data; launch a DAO, trade, and propose on Radix testnet.

Finance & CryptoKnowledge & memory

Responded318 ms13 / 22
DatoQA — Economic Indicators

Official country economic indicators and annual history, with units, dates, citations and gaps.

OtherKnowledge & memory

Responded324 ms13 / 22
LightRay

Send a company name and city, get a report on its owners, directors, filings, courts and press.

LegalKnowledge & memory

Responded340 ms13 / 22
My Spain Visa: Spain visa helper

Spain visa rules 2026, Schengen 90/180 calculator and consulate wait times, by immigration lawyers

LegalKnowledge & memory

Responded343 ms13 / 22
Siporpro

Find verified doctors, dentists, lawyers and accountants; see free times; request a booking.

LegalKnowledge & memory

Responded345 ms13 / 22
Memmo

Team memory for AI coding agents and code reviews, reviewed by humans and served over MCP.

Developer ToolsKnowledge & memory

Responded346 ms13 / 22
Paņem brīvdienu

Latvian public holidays, days off and annual leave for 2026 and 2027, computed from Latvian law.

LegalKnowledge & memory

Responded351 ms13 / 22
Recall

Recall (recall.it) — your AI knowledge base / 'second brain'. Via the official API: semantic search

Developer ToolsKnowledge & memory

Responded360 ms13 / 22
Arca Life Sciences

Free, no-key search of PubMed, FDA drug and device records and ClinicalTrials.gov, with citations.

HealthcareKnowledge & memory

Responded362 ms13 / 22
Base de Conhecimento

Your private knowledge base: upload documents (.md, .txt, .docx, PDF, images), the platform indexes

MediaKnowledge & memory

Responded368 ms13 / 22
GovTube

Search what U.S. officials said on camera, with timestamps and citations. Not a government site.

GovernmentKnowledge & memory

Responded372 ms13 / 22

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