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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18292 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
Online Poll Maker

Create poll drafts on onlinepollmaker.com. Free, no sign-up; you review and publish in the browser.

Developer ToolsCode & DevOps

Outdated check415 ms15 / 22
io.github.physics-star-cat/databutler-facts

Official thresholds, rates and fees by key, with source, verified date and signature.

Developer ToolsCode & DevOps

Responded416 ms15 / 22
Verse by A-to-Mind

Ask Verse anything with sources, plus code review, translation and more paid per call over x402.

Developer ToolsCode & DevOps

Outdated check417 ms15 / 22
Symvanta

Hosted code graph over MCP: exact callers, dependencies, and cross-repo blast radius for AI agents.

Developer ToolsCode & DevOps

Outdated check418 ms15 / 22
SQLGuard — permission before production writes

AI agents need permission before production SQL writes. Pilot $100 · Gateway $299. Lint≠authorize.

Developer ToolsDatabase

Responded420 ms15 / 22
Telesherpa Ontology Platform

Ontology platform for field service: AI agents observe, connect and act on business objects.

Developer ToolsCode & DevOps

Outdated check420 ms15 / 22
Aircall MCP by usefulapi

Read calls, contacts, users, teams and numbers; tag calls and create or update contacts.

Developer ToolsCode & DevOps

Responded423 ms15 / 22
Trooth

Read any company's record on the Trooth Network, each fact labeled with who said it and when.

Developer ToolsCode & DevOps

Responded425 ms15 / 22
Spin Wheel Names

Spin a random picker wheel, pick a random number, and search shared wheels from spinwheelnames.com.

Developer ToolsCode & DevOps

Outdated check427 ms15 / 22
JW3 MCP Server

JW3.ai remote MCP server for market reads and confirm-gated trading execution.

Developer ToolsCode & DevOps

Outdated check427 ms15 / 22
MiniURL

OAuth 2.1 short-link tools for AI agents with scoped tokens, approvals, audit logs, and revocation.

Developer ToolsCode & DevOps

Outdated check427 ms15 / 22
Laplace’s Mini World

Interactive 3D science models in Chinese and English, found and shown live in the chat.

Developer ToolsCode & DevOps

Outdated check428 ms15 / 22
Ireland MCP

Read-only Irish public data for AI assistants: stats, weather, transport, law, property and maps.

Developer ToolsCode & DevOps

Outdated check428 ms15 / 22
Emission Factors

Keyless US grid carbon + power cost by ZIP: eGRID Scope 2, Scope 1 fuels, site ranking, clean hours

Developer ToolsCode & DevOps

Responded431 ms15 / 22
Dietary Supplement Analysis (NIH data)

NIH supplement checks: upper limits, drug and herb interactions, FDA recalls, with citations.

Developer ToolsCode & DevOps

Outdated check431 ms15 / 22
The Agent Forge

See which AI models fall for traps in real jobs, and check MCP servers or skills before install.

Developer ToolsCode & DevOps

Responded435 ms15 / 22
io.github.VestOSAI/vest-mcp

Earn up to 20% cashback on 200+ AI tool subscriptions. Browse, build stacks, get tracked links.

Developer ToolsPayments & trading

Responded436 ms15 / 22
Emailens MCP

Analyze, audit, fix and diff HTML, MJML, Maizzle and React Email across 21 email clients.

Developer ToolsCommunication & messaging

Outdated check437 ms15 / 22
bitHuman docs

The bitHuman docs over MCP: two read-only tools, search and fetch; it needs no account and no key.

Developer ToolsData access / search

Responded438 ms15 / 22
NicheDB

Sources in, feeds out: an open, ever-growing database of real-time public data, enriched.

Developer ToolsDatabase

Outdated check438 ms15 / 22
LingYi Tools

Search 162 AI tools in the LingYi Tools directory by keyword, category, pricing, or featured picks.

Developer ToolsCode & DevOps

Outdated check439 ms15 / 22
io.github.johnsmalls22-rgb/backlinkmcp-server

Backlink & domain authority MCP for AI agents: referring domains, link gap, toxic review queue

Developer ToolsCode & DevOps

Responded441 ms15 / 22
VirWave Breathe

Calm, animated breathing sessions paced to your breath. Runs locally and collects nothing.

Developer ToolsCode & DevOps

Responded443 ms15 / 22
FlowState Hosted

Hosted shared memory for AI apps: project decisions, to-dos and learnings. Beta.

Developer ToolsCode & DevOps

Outdated check443 ms15 / 22

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