MCP HeartbeatTHE MCP OBSERVATORY
Public workspace

Explore

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.

Connect your agent

41826 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
guide.constructionleader/guide-registry

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

OtherOther

Responded586 ms15 / 22
guide.manufacturingleader/guide-registry

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

OtherOther

Responded587 ms15 / 22
Agent Safety Index

Is this AI agent safe with a wallet? Signed x402 Agent Safety exam results, and live demos.

Finance & CryptoPayments & trading

Responded588 ms15 / 22
classifier.dev

Sort up to 1,000 texts into your own labels with a calibrated confidence per answer. No API key.

OtherOther

Responded588 ms15 / 22
BreckenWander Travel

Search flights, hotels & experiences at all-in prices, then build a trip on breckenwander.com.

TravelData access / search

Responded588 ms15 / 22
RealRun

Independent AI model test scores on 5 tasks: inbox, scheduling, receipts, finance, support replies.

ProductivityAI / LLM tooling

Responded588 ms15 / 22
Responded588 ms15 / 22
GitHub Platform Changelog — buy per-query in-session (githubchangelog)

GitHub platform changelog feed. $0.01/query. Be born in one call — free testnet funds.

Developer ToolsCode & DevOps

Responded589 ms15 / 22
Cheap NY Publication: New York LLC filings

Look up any New York LLC: publication deadline, county and price. Quotes for NY LLC filings.

OtherData access / search

Responded589 ms15 / 22
The White Report

The White Report news archive: crypto and AI stories, search, full text, ticker, graded calls.

Finance & CryptoPayments & trading

Responded590 ms15 / 22
io.github.itsryanarmani/surrogacyagencies

Find surrogacy agencies and organisations for your journey.

Developer ToolsCode & DevOps

Responded590 ms15 / 22
guide.marketingleader/guide-registry

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

OtherOther

Responded590 ms15 / 22
Document Integrity Validator

AI reasoning checks any document against known international standards before your agent acts on it.

Developer ToolsFile & docs

Responded591 ms15 / 22
Storied Collection Venues

Search historic castles, manors and châteaux for exclusive-use rental in the UK, Ireland and France.

Developer ToolsCode & DevOps

Responded591 ms15 / 22
A2AWire Benchmark: R4 QA-035 Fresh Probe Capitals

Free to compete: testnet faucet funds everything. QA-035 retest: fresh benchmark for…

OtherOther

Responded592 ms15 / 22
Get2Great — management and selection science magazine

Read-only Get2Great magazine essays on who is good at a job, and the management-tool catalog.

OtherOther

Responded593 ms15 / 22
SeenRelay

Avoid redundant expensive validation. CHECK recent evidence; OBSERVE fresh independent results.

Developer ToolsCode & DevOps

Responded593 ms15 / 22
Sri Lanka Payslip

Source-backed Sri Lanka payslip tools for APIT/PAYE, EPF, ETF, stamp duty, and net pay.

Developer ToolsCode & DevOps

Responded593 ms15 / 22
MCP Server Discovery — new model-context-protocol repos ($0.01/query)

New MCP servers on GitHub: discovery index. $0.01/query. Be born in one call — free testnet funds.

Developer ToolsCode & DevOps

Responded594 ms15 / 22
Mode VC LLM Token Economics & Model Release Velocity

Query empirical frontier LLM release velocity, inference token deflation, and enterprise AI spend.

Developer ToolsAI / LLM tooling

Responded594 ms15 / 22
ai.exa/exa

Connect AI agents to Exa for web search, content fetching, and multi-step research.

Developer ToolsData access / search

Responded594 ms15 / 22
Finance Ops — Report Audit — Northgate Services Group (b9e5e630)

Free to compete: testnet faucet funds everything. 12 synthetic report exception cases: duplicate…

OtherOther

Responded595 ms15 / 22
Pressmark

Create PDF invoices, estimates, contracts, and real estate documents. (mooshworks.com)

Real Estate & PropertyFile & docs

Responded595 ms15 / 22
guide.salesleader/salesleader-desk

Read-only Sales Leader Guide desk: writers roster and magazine pieces. Public, no authentication.

OtherOther

Responded596 ms15 / 22

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