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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40974 servers

Ordered by checks passed
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
JobsPipe

Live job postings from 30+ ATS feeds and job boards, one schema. Sign in with OAuth, or use a key.

Developer ToolsCode & DevOps

Outdated check145 ms15 / 22
FPV-DB

Specs of FPV drone parts and every Betaflight/INAV CLI setting by release; checks a pasted diff

Developer ToolsCode & DevOps

Outdated check145 ms15 / 22
pretix MCP by usefulapi

Read pretix events, tickets and orders; check attendees in or out with your own account.

Developer ToolsCode & DevOps

Responded146 ms15 / 22
MoltNode by Chord

Read 31 blockchains over JSON-RPC and swap via Chord: best route, unsigned tx, simulation. No key.

Finance & CryptoPayments & trading

Responded146 ms15 / 22
referencesource.org

Verified reference data; each record carries its source URL and quote. verify_quote checks claims.

Developer ToolsCode & DevOps

Outdated check146 ms15 / 22
AgentGate

Check if an AI agent is registered, Active and Verified in the Concordium Agent Registry (CIS-8004).

Developer ToolsCode & DevOps

Outdated check146 ms15 / 22
MusedIn

Job network for AI agents: join, apply to jobs, post jobs, check work records. OAuth for writes.

Developer ToolsCode & DevOps

Outdated check146 ms15 / 22
Ecommerce Leads

Ecommerce store metrics by domain: revenue, ad spend, traffic. Log in to search 600k+ stores.

E-commerceData access / search

Outdated check146 ms15 / 22
FindA.Sale

Find yard sales, garage sales, auctions, flea markets and resale shops, and search items for sale.

E-commerceData access / search

Responded147 ms15 / 22
NEMO x402 Micro-Services

34 paid tools: site/SEO, weather, crypto+markets, podcasts, YouTube, Polymarket. x402/MPP/Stripe.

Finance & CryptoPayments & trading

Outdated check147 ms15 / 22
Bonafido: Business Domain Verification API

Bonafido: is a domain a real business site? Verdict, trust score, risk flags.

Developer ToolsCode & DevOps

Outdated check147 ms15 / 22
RecallChecker — Vehicle Safety Recalls

Check U.S. NHTSA vehicle safety recall campaigns by make, model, and year. Live official data.

Marketing & SalesData access / search

Outdated check147 ms15 / 22
ThinkReservations MCP by usefulapi

Read rooms, rates, inventory, reservations and price quotes in ThinkReservations.

OtherOther

Responded148 ms15 / 22
Spreaker MCP by usefulapi

Read shows, episodes, statistics and comments; update episode details in Spreaker.

Data & AnalyticsData access / search

Responded148 ms15 / 22
CharlieHR MCP by usefulapi

Read CharlieHR team members, leave, allowances, offices, teams and salaries; add team member notes.

ProductivityFile & docs

Responded148 ms15 / 22
Castle MCP by usefulapi

Investigate security events and manage the allow/deny lists an analyst acts on.

Developer ToolsCode & DevOps

Responded148 ms15 / 22
Feedpeck: RSS Feed Finder & Reader by Website

Feedpeck: find any site's RSS/Atom/JSON feeds + latest posts. Free, no key.

Developer ToolsCode & DevOps

Outdated check148 ms15 / 22
ExpenseIn MCP by usefulapi

Read expenses, invoices, receipts and card transactions, and add expenses or notes in ExpenseIn.

Finance & CryptoPayments & trading

Responded149 ms15 / 22
RotaCloud MCP by usefulapi

Read RotaCloud shifts, attendance, leave, availability and payroll; create shifts and handle leave.

Finance & CryptoPayments & trading

Responded150 ms15 / 22
Fiken MCP by usefulapi

Read invoices, bills, contacts, ledger and bank balances; create drafts and contacts in Fiken.

Finance & CryptoPayments & trading

Responded150 ms15 / 22
Demio MCP by usefulapi

Read webinars, sessions and participants, and register attendees for a webinar in Demio.

Developer ToolsCode & DevOps

Responded150 ms15 / 22
QuickUnits

Exact unit conversion with the factor and a citable page URL. Answers in your language.

Developer ToolsCode & DevOps

Responded150 ms15 / 22
Tailscale MCP by usefulapi

Read devices, users, keys, ACLs and DNS for a tailnet; manage devices, routes and auth keys.

Developer ToolsCode & DevOps

Responded151 ms15 / 22
Speechmatics MCP by usefulapi

Transcribe audio and video with Speechmatics speech-to-text from Claude and any MCP client.

MediaAI / LLM tooling

Responded151 ms15 / 22

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