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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7796 servers

Ordered by checks passedClear filters
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
Achromat Machine Operational Memory

Recall and calibrate policy-compliant tool-call arguments before execution. Does not run the tool.

Developer ToolsKnowledge & memory

Responded73 ms16 / 22
agent-bev

The world's largest agentic B2B hub for beer, wine and spirits. Powered by CUVEE. Trade only.

OtherAI / LLM tooling

Responded75 ms16 / 22
Atako

Remote MCP server to run your Atako AI agents: chat, projects, files, integrations and channels.

Developer ToolsCode & DevOps

Responded132 ms16 / 22
A2UI Atomic Catalog

500+ typed UI atoms an agent composes into real rendered interfaces. Free, no API key.

Developer ToolsCode & DevOps

Responded166 ms16 / 22
CloudBrowser

Give AI agents a real cloud Chrome: open sessions, navigate, read pages, click, type and screenshot.

Developer ToolsCode & DevOps

Responded198 ms16 / 22
Drillr — The financial MCP for AI agents

Financial data and research MCP for US/CN/JP equities: filings, statements, ownership, signals.

Developer ToolsCode & DevOps

Responded566 ms16 / 22
AgentMart

Webhook inbox, memory, wake-up calls, uptime watch and code kits for AI agents. Prepaid balance.

ProductivityMonitoring & observability

Responded707 ms16 / 22
DeepDNA

Pharmacogenomics for AI agents: cited drug–gene, gene and rsID lookups plus a medication screen.

HealthcareData access / search

Responded1277 ms16 / 22
Bankrolled.ai Agent Hub

Free, sourced deposit-insurance/savings/retirement limits. US, UK, CA, AU, NZ. No key, no payment.

Finance & CryptoPayments & trading

Responded6111 ms16 / 22
sigelo

One identity an AI agent owns: proves who it is offline, keeps its reputation, pays, messages agents

Developer ToolsCode & DevOps

Responded58 ms15 / 22
Finch Agent Catalog

Free: OFAC check, ATS keywords, FOMC/CPI dates, US yields, HL perps, SG stamp duty, Finch agents

Developer ToolsCode & DevOps

Responded58 ms15 / 22
402cron

Paid cron for AI agents: we call your https URL on schedule, signed. No account, paid with x402.

Finance & CryptoPayments & trading

Responded58 ms15 / 22
X402-Broker Universal MCP Gateway & Multi-Agent Swarm Router

Single-connection MCP gateway discovering and executing 490+ verified MCP & A2A tools.

Finance & CryptoPayments & trading

Responded59 ms15 / 22
DiffCI

Fail-closed, change-aware verification for AI coding agents with affected-test guidance.

Developer ToolsCode & DevOps

Responded60 ms15 / 22
CitedBy

Check a page, AI-crawler access, llms.txt and backlinks of a site. Free, read-only.

OtherBrowser & web scraping

Responded60 ms15 / 22
pkgxray

Pre-install security scans for npm packages, MCP servers, and AI agents with cited verdict evidence.

Developer ToolsCode & DevOps

Responded66 ms15 / 22
Hatch

Hosting for AI agents: publish a live website in one tool call, ephemeral or forever.

Developer ToolsCode & DevOps

Responded66 ms15 / 22
Tabularium

Agent memory and a signed spending ledger: pay any x402 API, keep a provable receipt.

Finance & CryptoCode & DevOps

Responded67 ms15 / 22
Qiniso

Deterministic fact verification for AI agents — checksums & curated data, not guesses.

Developer ToolsCode & DevOps

Responded67 ms15 / 22
InferIndex

LLM API prices across 70+ providers: cheapest offer, comparisons, history and cost estimates.

Developer ToolsCode & DevOps

Responded68 ms15 / 22
AgenticWebScore

Scan a public website for AI agent readiness: 60 checks, a score, and the evidence for each.

Developer ToolsCode & DevOps

Responded69 ms15 / 22
Agent Bounty Feed

Open, paid bounties AI agents can claim, verified hourly from funded boards and audit contests.

Developer ToolsCode & DevOps

Responded70 ms15 / 22
PromptSpend

LLM pricing where every rate carries its source and the date it was last confirmed.

Developer ToolsCode & DevOps

Responded70 ms15 / 22
Protologue

Sourced, citable definitions of prompting and LLM techniques, with relations and primary sources.

Developer ToolsAI / LLM tooling

Responded70 ms15 / 22

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