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

18337 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
SaaS Puppy

Look up or compare free-tier developer tools, with the catch spelled out.

Developer ToolsData access / search

Outdated check775 ms15 / 22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

Outdated check784 ms15 / 22
Buy My Agent

Search a curated, human-reviewed AI agent marketplace, and post what you could not find.

Developer ToolsCode & DevOps

Outdated check789 ms15 / 22
io.github.shawndei/glimind

Live reliability for AI agent tools: is it working right now, and how do I call it correctly?

Developer ToolsCode & DevOps

Responded795 ms15 / 22
GoSQLX

SQL validation, formatting, parsing, metadata extraction, linting, and security analysis.

Developer ToolsCode & DevOps

Outdated check795 ms15 / 22
runx

The governed runtime for agent skills. Search the catalog and inspect a skill before running it.

Developer ToolsData access / search

Responded798 ms15 / 22
ai.mitosislabs/mitosis

Mitosis agent-memory platform: pricing, docs search, platform status, agent skills. No auth.

Developer ToolsKnowledge & memory

Responded799 ms15 / 22
Rokha

Search a registry of agent skills and MCP servers, then run them for real. No install, traced.

Developer ToolsData access / search

Responded803 ms15 / 22
Ichimoku Signal

Free Ichimoku trend; paid signals, levels, scan, setups and Telegram signal alerts via x402.

Developer ToolsCommunication & messaging

Outdated check803 ms15 / 22
The Daily Workflow — AI Tools & Free Alternatives

Find free open-source replacements for paid software; search 15,000+ AI tools and MCP servers.

Developer ToolsAutomation & workflows

Outdated check806 ms15 / 22
Fizzl Buy

Say what your agent needs: Fizzl buys the right paid x402 API, checks the answer. Free pick.

Developer ToolsCode & DevOps

Outdated check807 ms15 / 22
Project100 — open work and tasks for agents

Free work board for autonomous agents: pick a task, deliver it, get a verifiable certificate.

Developer ToolsCode & DevOps

Outdated check807 ms15 / 22
Abonnement24 deals

Actuele Nederlandse deals: smartphone met abonnement, sim only en internet en tv, op echte prijs.

Developer ToolsCode & DevOps

Responded809 ms15 / 22
ExpenseBot

Receipt ingestion, Gmail capture, expense analysis, and reviewed reports for AI-agent workflows.

Developer ToolsCommunication & messaging

Responded813 ms15 / 22
ModelCostComparison

Find AI model pricing, estimate token costs and compare offers. No API key required.

Developer ToolsAI / LLM tooling

Outdated check821 ms15 / 22
Staffing Math

Exact staffing math: FTE needed, a monthly hiring plan, and Erlang C queue staffing.

Developer ToolsCode & DevOps

Outdated check821 ms15 / 22
TheRundown Documentation MCP

Official TheRundown API documentation search. No live data or authenticated Product API calls.

Developer ToolsFile & docs

Responded830 ms15 / 22
Whisper

One routable IPv6 per AI agent, verifiable from the DNS root. Keyless tools need no signup.

Developer ToolsCode & DevOps

Responded831 ms15 / 22
Evercraft Web

Read public web content with Evercraft; search and browser automation stay behind safety gates.

Developer ToolsAutomation & workflows

Outdated check845 ms15 / 22
Upforge

Talk with Upforge Echo, compare services and proof, or request a human-approved project review.

Developer ToolsCode & DevOps

Responded846 ms15 / 22
Agent Help Network

Web step blocked? Host's declared agent policy, official path and status, plus one next action.

Developer ToolsCode & DevOps

Outdated check846 ms15 / 22
disputes.online

Read prediction disputes and the crowd's odds on real-world events from disputes.online.

Developer ToolsCode & DevOps

Responded849 ms15 / 22
Agentboard Skills

Don't redo web tasks: find a verified workflow, replay it (often 0 model calls). Failures shown.

Developer ToolsCode & DevOps

Outdated check849 ms15 / 22
KnownFix

Developer fixes, free skills, browser tools and scoped technical services over MCP.

Developer ToolsCode & DevOps

Outdated check849 ms15 / 22

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