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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41827 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
Veredicto Humano

Ask a real human (not an LLM) for a judgment, $0.10 USDC via x402. The result returns to the agent.

Finance & CryptoPayments & trading

Responded601 ms15 / 22
paidfor

Check an x402 seller before paying: verdict, failure rate and evidence from paid calls on Base.

Finance & CryptoPayments & trading

Responded601 ms15 / 22
io.github.pooriaarab/funeralcompare

Compare funeral homes and cremation providers by what they publish.

Developer ToolsCode & DevOps

Responded601 ms15 / 22
US compliance and books health

US company filing obligations, plus a 25-check bookkeeping diagnostic. Sourced, dated, no signup.

Finance & CryptoPayments & trading

Responded604 ms15 / 22
Responded604 ms15 / 22
Lotlytics — US Real Estate Market Data & Investment Analytics

US real estate market data for AI agents: prices, yields, forecasts and scores for 894 markets.

Real Estate & PropertyData access / search

Responded604 ms15 / 22
PlugRail Japanese Calendar

Japanese holiday and business-day calculations using official Japan Cabinet Office data.

ProductivityFile & docs

Responded605 ms15 / 22
Bikefuchs — Bike Parts Price Comparison

Price comparison & cart optimizer for bike parts across German & Austrian shops

E-commerceData access / search

Responded605 ms15 / 22
guide.governmentleader/guide-registry

Read-only Bicycle Guide registry: published guides, homes, taxonomy, capability spine. No auth.

OtherOther

Responded605 ms15 / 22
BizVerify

KYB for AI agents: verify business registrations from MCP clients.

Developer ToolsCode & DevOps

Responded606 ms15 / 22
io.github.m9labs-railscope/verantis-mcp

Verified directory for machine payments (x402 & MPP): check services and wallets before agents pay.

Finance & CryptoPayments & trading

Responded606 ms15 / 22
Responded606 ms15 / 22
KABO Indian Nutrition Index

ICMR-NIN nutrition for 52 Indian foods: protein, targets by age, cost ranking. Every answer cited.

Developer ToolsCode & DevOps

Responded607 ms15 / 22
Project Gumball

One MCP server exposing every tool in the Gumball portfolio.

Developer ToolsCode & DevOps

Responded607 ms15 / 22
io.github.itsryanarmani/auctionfinder

Auction houses, online auctions and government surplus.

GovernmentCode & DevOps

Responded607 ms15 / 22
Mode VC AI Chart Lab: 38 Empirical AI & Venture Charts

Search and retrieve time-series data across 38 empirical AI adoption and venture research charts.

OtherData access / search

Responded608 ms15 / 22
SavingsLast retirement calculators

Retirement drawdown, 72(t) SEPP, RMD, Roth conversion, Social Security and state-tax calculators.

Finance & CryptoPayments & trading

Responded608 ms15 / 22
Manusights

Check if references exist or were retracted, look up journal AI policies, and preview manuscripts.

OtherData access / search

Responded608 ms15 / 22
guide.homegarden/guide-registry

Read-only Bicycle Guide registry: published guides, homes, taxonomy, capability spine. No auth.

OtherOther

Responded608 ms15 / 22
UpGrow Instagram Growth

UpGrow Instagram growth MCP server: plans, one-time shop, free Instagram tools and blog search.

E-commerceData access / search

Responded609 ms15 / 22
io.github.pooriaarab/apostilles

Find the government office that issues your apostille.

GovernmentCode & DevOps

Responded609 ms15 / 22
hotpath-cloud

Read-only access to Rust profiling reports from CI: benchmark history, diffs and policies

OtherOther

Responded609 ms15 / 22
ScriptGrain

Your writing voice measured across 45 attributes; drafts in that voice, scored against it.

OtherOther

Responded610 ms15 / 22
ViewportWitness by Apex Labs

Agent website testing: browser QA, visual regression, Markdown extraction, and security checks.

Developer ToolsFile & docs

Responded611 ms15 / 22

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