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
TOVREK Current-State Resolver

Verify DOI metadata before autonomous action; preserve conflicts, provenance, and UNKNOWN.

OtherOther

Responded238 ms15 / 22
Dyslexia Steps

Phonics word lists and reading-game catalogue for dyslexia support. Read-only.

OtherOther

Responded238 ms15 / 22
rs.rides/airport-transfers

Airport transfers: Novi Sad ↔ Belgrade Airport (BEG). Look up prices and book a ride.

TravelData access / search

Responded238 ms15 / 22
Section 179 Deduction Calculator

Section 179 limits, 100% bonus depreciation, heavy SUV caps and asset loan cost (2025-2026, IRS).

Developer ToolsCode & DevOps

Responded238 ms15 / 22
RoamDial — World Radio Map

Explore 35,000+ live radio stations from 215 countries by city, genre, mood, and ICY track title.

MediaCode & DevOps

Responded239 ms15 / 22
Open Economics

Discover, resolve, and query official Brazilian economic data with semantic search and provenance.

Developer ToolsCode & DevOps

Responded239 ms15 / 22
io.github.snayyar00/webability

Free WCAG 2.2/ADA/508 accessibility MCP: scan, AI fixes, verify, vision audit, localhost tunnel

Developer ToolsCode & DevOps

Responded239 ms15 / 22
UK Legal Research

UK legal research — case law, legislation, Hansard, bills, votes, committees, HMRC, citations

LegalCode & DevOps

Outdated check239 ms15 / 22
Gas Prices Today MCP

Gas prices today from the EIA weekly survey: US, region, state and city, with year-ago change.

Developer ToolsCode & DevOps

Responded240 ms15 / 22
io.github.beneb89/changegamer

Agent-first resource directory for AI agents: protocols, security, RAG, memory, evals, and more.

Developer ToolsCode & DevOps

Responded240 ms15 / 22
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
Sentinelle syndic FR

French condominium registry: current syndic and mandate end date, by condo or by area.

Developer ToolsCode & DevOps

Responded245 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

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