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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5043 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
INMAR business knowledge

Search and retrieve public INMAR services, projects and business information.

OtherData access / search

Responded162 ms13 / 22
Anchor Terminal

Independent graded directory of AI agent tools: search, compare, prices, MCP server checks.

Developer ToolsData access / search

Responded162 ms13 / 22
AZPay Monetize — Sepolia Sandbox

Search, negotiate and buy resource access with x402 test USDC on Ethereum Sepolia.

Finance & CryptoPayments & trading

Responded162 ms13 / 22
HotAPI Docs

Read-only HotAPI documentation: search integration guides and inspect OpenAPI operations.

Developer ToolsFile & docs

Responded162 ms13 / 22
FastCAC

Register a Nigerian business with CAC: name checks, fees, register search, TIN. Sign in when needed.

OtherData access / search

Responded163 ms13 / 22
Steiner hat gesagt

Search and quote Rudolf Steiner's collected works (Gesamtausgabe) with volume, page and date.

OtherData access / search

Responded172 ms13 / 22
Agent Field Kit

Search, price and buy field-tested agent-ops kits (evals, security, runbooks) via Stripe checkout.

Finance & CryptoPayments & trading

Responded172 ms13 / 22
Softwear Prints

Search the Softwear Prints catalogue of workwear, teamwear and promotional items.

OtherData access / search

Responded175 ms13 / 22
Ninth Life Lab

Match a business to ready-made AI assistants for SMEs; search the catalog, in English or Turkish.

OtherData access / search

Responded179 ms13 / 22
AILANG Executor

Write, type-check and run AILANG in a sandbox, with Z3-proved contracts and docs search.

LegalCode & DevOps

Responded187 ms13 / 22
Drupal Code Query

Drupal core API changes, contrib usage, upgrade checks, patches, code search, SQL, WordPal themes.

Developer ToolsData access / search

Responded187 ms13 / 22
NoKYC Score

Search no-KYC exchanges, swaps, wallets and VPNs with privacy and safety grades.

Finance & CryptoPayments & trading

Responded187 ms13 / 22
Bestshopping Cashback — IT, DE, FR

Search eligible retail merchants and prepare cashback links for adult account holders in IT, DE, FR.

E-commerceData access / search

Responded187 ms13 / 22
xkcd Comic Suggester

Suggests a relevant xkcd comic during a conversation, via semantic search over every comic.

MediaCode & DevOps

Responded188 ms13 / 22
Netstate

Search 128 million official company registrations across every US state, DC, Puerto Rico and Canada.

OtherData access / search

Responded188 ms13 / 22
com.expandingweb/nord-trail-store

Reference agent-ready storefront: search, look up and price a real Magento catalog.

E-commerceData access / search

Responded189 ms13 / 22
Open Medici Public Fellowship and Grant Search

Public fellowship and grant search with sourced details and live filter vocabularies.

OtherData access / search

Responded190 ms13 / 22
Traceproof

Search security findings and contribute versioned, evidence-backed reproduction reports.

OtherData access / search

Responded191 ms13 / 22
HolidayFox

Search independent UK holiday stays, check live availability and exact prices, then open checkout.

Finance & CryptoPayments & trading

Responded191 ms13 / 22
eSky holidays

Search eSky holiday packages (flight + hotel), destination ideas and regions, with a booking link.

TravelCode & DevOps

Responded192 ms13 / 22
OpenNash Jobs

Official job listings at Forbes Global 2000 companies: search, new and removed jobs, hiring trends.

ProductivityData access / search

Responded192 ms13 / 22
com.hypeibiza/offers

Sneaker prices and stock per size across European shops: search, offers, deals, size conversion.

Finance & CryptoData access / search

Responded194 ms13 / 22
Pocket Network Agentic Marketplace

Search and call pay-per-request data services, paying in USDC on Base with x402.

Finance & CryptoPayments & trading

Responded197 ms13 / 22
Arne Kellmann Consulting

Read consulting services and search public architecture consulting documents in English or German.

OtherFile & docs

Responded198 ms13 / 22

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