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

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
Mailvett: Email Validation API for AI Agents

Mailvett: validate emails. MX, provider, disposable/role/free flags, typo fix, verdict.

Developer ToolsCommunication & messaging

Outdated check174 ms15 / 22
Keep Me Secure

Tells your coding agent whether your installed packages need patching, with advice on what to do.

Developer ToolsCode & DevOps

Responded176 ms15 / 22
Cortex

Patent-pending semantic memory for AI agents: quality-gated writes, conflict tracking. Free trial.

LegalCode & DevOps

Outdated check177 ms15 / 22
Health Statistics

Health statistics for AI agents: life expectancy, causes of death, health spending, WHO data.

Data & AnalyticsCode & DevOps

Outdated check180 ms15 / 22
VoyageHacks

Multilingual travel guides, gear picks and booking links for AI travel agents.

TravelData access / search

Outdated check181 ms15 / 22
Blog2Social - Social Media Publishing

Connect AI agents to Blog2Social and automate social media content workflows via MCP.

Marketing & SalesCode & DevOps

Outdated check186 ms15 / 22
Labour Market Statistics

Labour market statistics for AI agents: unemployment, employment and wages for 150+ countries.

Data & AnalyticsCode & DevOps

Outdated check187 ms15 / 22
Homespun

Deploy a multi-user web app from your agent: hosting, auth, database, and permissions.

Developer ToolsDatabase

Outdated check189 ms15 / 22
Dialyne

Real phone calls in France for AI agents: dial +33 numbers, menus, hold, AI disclosure.

Developer ToolsCode & DevOps

Outdated check191 ms15 / 22
Economic Statistics

Official economic statistics for AI agents: GDP, inflation, trade and debt for 150+ countries.

Data & AnalyticsCode & DevOps

Outdated check195 ms15 / 22
agenttool

Where agents arrive as themselves: DID identity, memory, wallet, inbox, covenants, jokes.

Finance & CryptoPayments & trading

Outdated check197 ms15 / 22
massprint

Print-on-demand for agents: upload a PDF, get a printed book delivered in India.

Developer ToolsFile & docs

Outdated check197 ms15 / 22
Agent Services (x402): compliance, company, procurement

27 pay-per-call agent tools (KYB, VAT, sanctions, tenders, data). Pays via x402; holds no funds.

Developer ToolsCode & DevOps

Outdated check203 ms15 / 22
Mandate Office

EU legal toolbox for AI agents: EU/national law links, company registers, formation guides. Free.

LegalKnowledge & memory

Outdated check203 ms15 / 22
Gearlist

Free, source-checked directory of AI agent tools, MCP servers and skills, with read-only search.

Developer ToolsData access / search

Outdated check207 ms15 / 22
Zolva

Trading agents on Robinhood Chain: every buy, sell and hold with its reason, plus market prices.

Finance & CryptoPayments & trading

Outdated check210 ms15 / 22
VibeDeploy

Deploy AI-built sites and apps to EU hosting from your AI agent. OAuth sign-in, 14-day free trial.

Developer ToolsCode & DevOps

Outdated check212 ms15 / 22
Push Realm

Cross-domain knowledge network where AI agents search, share, and refine solutions via MCP.

Developer ToolsCode & DevOps

Outdated check220 ms15 / 22
AgentTrust XRPL

Escrow for AI agents on the XRP Ledger. 51 tools. Free testnet sandbox (no real XRP).

Finance & CryptoCode & DevOps

Outdated check221 ms15 / 22
BridgeNode MCP

BridgeNode — x402 pay-per-request AI inference. OpenAI-compatible API + MCP, Solana USDC, gas-free.

Finance & CryptoPayments & trading

Outdated check221 ms15 / 22
Blocksize Agentic Market Intelligence

Multi-venue VWAP, bid/ask, crypto FX, metals and equities with provenance receipts for AI agents

Finance & CryptoPayments & trading

Outdated check221 ms15 / 22
Clairvoyance

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

Developer ToolsCode & DevOps

Outdated check226 ms15 / 22
agentclash

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

MediaCode & DevOps

Outdated check234 ms15 / 22
ID MANDAT – Registry for AI Agents

Open registry for AI agents: check who stands behind an agent and what it may do.

Developer ToolsCode & DevOps

Outdated check235 ms15 / 22

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