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.

Connect your agent

41500 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
AgentFeed

Crypto briefs and data, Solana pre-trade checks, sanctions, papers, NLP. 102 tools, USDC, 20 chains.

Finance & CryptoPayments & trading

Outdated check357 ms15 / 22
UGC Fans Studio

Turn a website into a launch film; trim, caption and reformat your own clips

MediaAI / LLM tooling

Outdated check357 ms15 / 22
io.github.castralis122/base-web3-m2m-hub

Live Base Mainnet on-chain data (gas, DEX, Aave, token risk, prices). Pay per call in USDC via x402.

Finance & CryptoPayments & trading

Responded359 ms15 / 22
EQVPS — VPS and code sandboxes for AI agents

No-KYC VPS + per-second code sandboxes AI agents run over MCP — 75 tools, SDK, pay BTC/XMR/USDC/USDT

Developer ToolsCode & DevOps

Outdated check361 ms15 / 22
Product catalog

Search a product catalog for a title, price, pictures, and a page where it can be bought.

E-commerceCode & DevOps

Outdated check362 ms15 / 22
audit.domains - Domain Valuation

Deterministic domain name valuation: fair-value interval, scored factors, real comparable sales.

OtherOther

Responded363 ms15 / 22
BinaSmart

Ethiopia: Addis rides, jobs, tenders, hotels, health, homes, cars, news and government guides

GovernmentData access / search

Outdated check364 ms15 / 22
com.trip1/mcp

Book hotels over MCP. Pay over x402. 3M+ properties in 200+ countries, USDC on Base.

Finance & CryptoPayments & trading

Responded365 ms15 / 22
Accredible MCP by usefulapi

Read Accredible credentials, groups, designs, analytics, skills; issue one credential as a draft.

Data & AnalyticsData access / search

Responded365 ms15 / 22
BMLT Meetings

Search Narcotics Anonymous meetings worldwide via the BMLT directory.

Developer ToolsCode & DevOps

Outdated check365 ms15 / 22
Ferritin — Rust documentation

Search and read Rust documentation for the standard library and any crate on crates.io

OtherFile & docs

Responded367 ms15 / 22
Strale

Hundreds of pay-per-call tools for agents: company records, screening, validation, web reading.

Developer ToolsCode & DevOps

Outdated check368 ms15 / 22
Page Change

Free compare_page_observations for two held JSON pages. No fetch, wallet, or payment.

Finance & CryptoPayments & trading

Outdated check368 ms15 / 22
io.github.kody-w/rapp-agent-builder

Turn an idea or meeting transcript into a working single-file AI agent, check it, use it right away.

Developer ToolsCode & DevOps

Responded369 ms15 / 22
CultureMonkey MCP by usefulapi

List, add, update and deactivate employees in CultureMonkey.

Developer ToolsCode & DevOps

Responded369 ms15 / 22
Neuronto ARD Registry: Agentic Resource Discovery (ARD) Index

Agent Resource Discovery (ARD, IETF draft) registry: search every ARD registry + verified MCP tools

Developer ToolsData access / search

Outdated check369 ms15 / 22
SEC EDGAR Insider Trades & Financials

SEC EDGAR for agents: Form 4 insider trades, cluster buys, filings, XBRL financials and search.

Developer ToolsCode & DevOps

Outdated check370 ms15 / 22
DaedalMap Reverse Geocoding (coordinates to loc_id)

Resolve WGS84 points and map boxes to available administrative loc_id hierarchies.

Data & AnalyticsData access / search

Outdated check370 ms15 / 22
FactReason

Check exact npm/PyPI upgrades for evidence-backed breaking changes; query APIs and components.

Developer ToolsCode & DevOps

Outdated check371 ms15 / 22
DomainKits

Search newly registered, expired, aged, active, deleted and for-sale domains, plus WHOIS and DNS.

Developer ToolsCode & DevOps

Outdated check371 ms15 / 22
CloudSign MCP by usefulapi

Create, send and track e-signature documents with their files and recipients in CloudSign.

Developer ToolsFile & docs

Responded373 ms15 / 22
AI Storefront Readiness Grader

Grades any storefront URL A-F on 20 weighted conversion checks. $1.00/call via x402.

E-commerceCode & DevOps

Responded374 ms15 / 22
Agent Tools UK

Pay-per-use agent tools: screenshots, web to Markdown, PDF tables, OCR, UK company checks

Developer ToolsFile & docs

Responded375 ms15 / 22
0s and 1s CIS calculators

Free UK CIS calculators: deductions, deadlines, late penalties, gross payment test, verification.

Finance & CryptoPayments & trading

Responded375 ms15 / 22

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