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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41351 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
org.llmref/llmref

Versioned documentation registry and semantic search for AI tools and coding assistants.

Developer ToolsFile & docs

Responded225 ms15 / 22
AssetTiger MCP by usefulapi

Find assets and stock, read asset events; create assets and check them in or out in AssetTiger.

Finance & CryptoPayments & trading

Responded225 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

Outdated check225 ms15 / 22
Used Fork Truck

Read-only price book, seller screen, and financing illustration.

MediaAI / LLM tooling

Outdated check225 ms15 / 22
BlockVectra Docs: Robinhood Chain & EVM

Search and read Robinhood Chain and EVM RPC/API docs. No account, API key or local install.

OtherData access / search

Outdated check225 ms15 / 22
SAM.gov

SAM.gov readiness, entities, exclusions, opportunities, awards, hierarchy, and subawards. 20 tools.

Developer ToolsCode & DevOps

Outdated check225 ms15 / 22
Vegetable Yield Percentage MCP

Vegetable and fruit yield percentage, trim waste and how much produce to buy, from USDA refuse data.

Developer ToolsCode & DevOps

Responded226 ms15 / 22
Clairvoyance

Software design skills for AI coding agents, inspired by A Philosophy of Software Design.

Developer ToolsCode & DevOps

Outdated check226 ms15 / 22
Clio MCP by usefulapi

Read Clio matters, contacts, time, tasks, calendar and bills; add matters, time entries, notes.

ProductivityFile & docs

Responded227 ms15 / 22
Airfare Brain

True cost of flight extras (bags, seats, fees) on 29 airlines in Europe and North America, sourced.

TravelData access / search

Outdated check227 ms15 / 22
io.github.slookisen/finn-tannlege-mcp

Norwegian dental clinic MCP: more than 4,500 clinics with Helfo, specialty and emergency care data.

HealthcareCode & DevOps

Responded228 ms15 / 22
Better Stack MCP by usefulapi

Read monitors, incidents, heartbeats, on-call and status pages; acknowledge or resolve incidents.

Developer ToolsCode & DevOps

Responded228 ms15 / 22
The Cracks Index

Read-only MCP server for The Cracks Index: ranks countries and regions on social-safety strength

Developer ToolsCode & DevOps

Outdated check228 ms15 / 22
The Front Desk Review

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

OtherOther

Outdated check228 ms15 / 22
Dotypos MCP by usefulapi

Read orders, sales reports, stock and reservations; add customers, update products in Dotypos.

Finance & CryptoPayments & trading

Responded229 ms15 / 22
ai.shumi/mcp

Crypto market intelligence: prices, funding rates, narratives, regime, and delta-neutral research.

Finance & CryptoPayments & trading

Responded230 ms15 / 22
ASPERN: counterparty checks for agents

What the chain records about an address before you pay it, and whether a payment fits it.

Finance & CryptoPayments & trading

Responded230 ms15 / 22
DSCR Loan Calculator

DSCR loan calculator for rental property: DSCR, lender tiers, max loan, rent needed, amortization.

Real Estate & PropertyCode & DevOps

Responded230 ms15 / 22
縦綱 Tatezuna — o-sumo

Grand Sumo (大相撲) banzuke, torikumi results, and rikishi profiles from osada.us. Read-only, no auth.

OtherOther

Responded231 ms15 / 22
Checkfront MCP by usefulapi

Check Checkfront availability and rates, and manage booking sessions, bookings, customers and notes.

ProductivityFile & docs

Responded231 ms15 / 22
Indie Alternatives

Find indie-made tools and alternatives to big-name software. 1,500+ products. Logs unmet needs.

Developer ToolsCode & DevOps

Responded231 ms15 / 22
Packrift MCP

Find, size, price and order packaging: boxes, mailers, poly bags, tape. Live price and stock.

Finance & CryptoCode & DevOps

Outdated check233 ms15 / 22
Bahdan Hal

Bahdan Hal software consulting: services, pricing, CV and skills, and contact requests.

Developer ToolsCode & DevOps

Outdated check233 ms15 / 22
agentclash

Free practice runs of agentclash, a game where AI agents name hand-drawn images.

MediaCode & DevOps

Outdated check234 ms15 / 22

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