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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41709 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
Dyscalculia.io

Open number-sense practice data and game catalogue for dyscalculia. Read-only.

OtherOther

Responded242 ms15 / 22
Sentinelle catnat FR

French natural-disaster decrees (CatNat) per commune, with the open insurance-claim deadline.

Developer ToolsCode & DevOps

Responded242 ms15 / 22
Atera MCP by usefulapi

Check devices, alerts and tickets in Atera, and open tickets, comment or resolve alerts.

Developer ToolsCode & DevOps

Responded242 ms15 / 22
Paycheck Calculator

Take-home pay for 2025-2026: IRS brackets, FICA wage base and state income tax for 50 states + DC.

Developer ToolsCode & DevOps

Responded242 ms15 / 22
Cups to Grams

Cups to grams for 271 ingredients with USDA and King Arthur densities, recipe scaling, oven temps.

Developer ToolsCode & DevOps

Responded242 ms15 / 22
audioknihy.cz Catalog

Czech audiobook catalog MCP server. Search 12 000+ titles + compare prices across 5 partners.

OtherData access / search

Responded243 ms15 / 22
The Front Desk Review

4,764 products, 626 categories: sourced prices, dated price history, independent-test coverage.

OtherOther

Responded243 ms15 / 22
Siren

Deterministic visual marketing engine. Your agent plans, renders, and posts on-brand campaigns.

Marketing & SalesData access / search

Responded243 ms15 / 22
Recruitee MCP by usefulapi

Search Recruitee candidates, jobs, pipelines and interviews, and add notes, tags and tasks.

ProductivityData access / search

Responded244 ms15 / 22
Car Loan Interest Deduction Calculator

2025-2028 car loan interest deduction, SALT cap, child tax credit and 2026 tax brackets (IRS).

Developer ToolsCode & DevOps

Responded244 ms15 / 22
Revuo

Agent-callable B2B SaaS directory: capability-structured, continuously verified listings.

Developer ToolsCode & DevOps

Responded246 ms15 / 22
io.github.theluckystrike/minimum-wage-mcp

US state minimum wage 2026-2027: rates, tipped wages and scheduled increases for 50 states and DC.

Developer ToolsCode & DevOps

Responded246 ms15 / 22
Apilo MCP by usefulapi

Read orders, shipments, products and stock; set order status, notes and stock quantity in Apilo.

Finance & CryptoPayments & trading

Responded246 ms15 / 22
GoTRON MCP

TRON blockchain: accounts, TRC20 tokens, staking, contracts, resources and transaction builders

Finance & CryptoPayments & trading

Responded247 ms15 / 22
MachineWitness

EU archive of the machine-readable web: check a domain, order a time-stamped record or extract.

OtherOther

Responded247 ms15 / 22
Traffic Parrot

Traffic Parrot simulates APIs and messaging. Request or withdraw a trial, read docs, send feedback.

OtherCommunication & messaging

Responded247 ms15 / 22
USPS Holiday Shipping Deadlines MCP

USPS holiday shipping deadlines: Christmas send-by dates, days left, military and international.

Developer ToolsCode & DevOps

Responded247 ms15 / 22
HirePulse Commerce Research

11 commerce tools: product data, store discovery, merchant evidence. 10 free calls a day, then USDC.

Developer ToolsCode & DevOps

Responded248 ms15 / 22
Cerebras MCP by usefulapi

List models, read model details and send chat messages in Cerebras.

Developer ToolsCode & DevOps

Responded248 ms15 / 22
Agiloft MCP by usefulapi

List tables, read records and search a knowledgebase in Agiloft.

Developer ToolsData access / search

Responded248 ms15 / 22
tickadoo Experiences and Events

Discover and book theatre, tours, attractions, and live experiences worldwide. No API key required.

Developer ToolsCode & DevOps

Responded248 ms15 / 22
Appointo MCP by usefulapi

Read Appointo bookings, availability and subscriptions; create, reschedule and cancel bookings.

Developer ToolsPayments & trading

Responded249 ms15 / 22
YouTube Transcript + YouTube Search MCP

YouTube transcripts, search, channel browsing, and playlists for AI agents via MCP.

MediaData access / search

Responded250 ms15 / 22
Auvik MCP by usefulapi

Read devices, networks, alerts and statistics; dismiss alerts in Auvik.

Data & AnalyticsData access / search

Responded250 ms15 / 22

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