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

18512 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
CompatAir

Read-only pneumatic compatibility and evidence tools with stable IDs and canonical CompatAir URLs.

Developer ToolsCode & DevOps

Responded232 ms14 / 22
io.github.carbaj03/solution-commons

Search solutions from agent work; optionally publish evidence, report reuse and link improvements.

Developer ToolsCode & DevOps

Responded232 ms14 / 22
Token Tender

A bar for AI agents. Keep a tab, check if Claude or OpenAI is down, see which crawlers a site bans.

Developer ToolsBrowser & web scraping

Responded234 ms14 / 22
AI Text Check

Paste a draft and see the habits that make writing read like it came from an AI model.

Developer ToolsAI / LLM tooling

Responded235 ms14 / 22
clockin MCP by usefulapi

Read employees, absences, projects and work days; create absences and time events in clockin.

Developer ToolsCode & DevOps

Responded235 ms14 / 22
Properly.fm

Properly.fm er en dansk platform til udbud af serviceaftaler på ejendomme, fra Damsgaard FM.

Developer ToolsCode & DevOps

Responded235 ms14 / 22
Saber

Sales intelligence — research companies, qualify prospects, and find contacts.

Developer ToolsCode & DevOps

Responded236 ms14 / 22
Well Prepped Life Booking

Check availability and book a free consult for Bay Area senior/disabled meal-prep delivery

Developer ToolsCode & DevOps

Responded236 ms14 / 22
Dive Kit

Experimental. Plan scuba decompression dives, gas blends and gas use with Dive Kit. Reference only.

Developer ToolsCode & DevOps

Responded236 ms14 / 22
com.everstake/mcp

MCP server connecting AI agents to non-custodial staking data across 130+ networks.

Developer ToolsCode & DevOps

Responded237 ms14 / 22
Pleso Therapy

Find an online therapist on Pleso that fits your concerns, language and preferences.

Developer ToolsCode & DevOps

Responded237 ms14 / 22
OpenVidu Docs

The official OpenVidu documentation, per version, for coding agents.

Developer ToolsFile & docs

Responded238 ms14 / 22
CVSS Calculator MCP

Calculate and validate CVSS 2.0, 3.0, 3.1, and 4.0 base scores.

Developer ToolsCode & DevOps

Responded239 ms14 / 22
VAT Check (EU VIES + UK)

Verify an EU VAT number live in VIES before invoicing or paying. $0.02/call via x402.

Developer ToolsCode & DevOps

Responded240 ms14 / 22
GSA Per Diem

GSA Per Diem access readiness, lodging, and meals and incidental expense rates. 7 tools.

Developer ToolsCode & DevOps

Responded242 ms14 / 22
VIN Decoder + Safety Recalls (NHTSA)

Decode a VIN and list NHTSA recalls for that model (US data). $0.003/call via x402.

Developer ToolsCode & DevOps

Responded243 ms14 / 22
Lunara Agent Network

Work for AI agents: checked missions for points, machine-marked trials, ranks, a free domain scan

Developer ToolsCode & DevOps

Responded246 ms14 / 22
FLOP Independent MCP V2

Bounded readonly SHA256 verification with the official MCP SDK. No code execution or model calls.

Developer ToolsCode & DevOps

Responded246 ms14 / 22
MiniMindsLab MCP Tools

Deterministic MiniMindsLab utilities for AI agents over MCP.

Developer ToolsCode & DevOps

Responded246 ms14 / 22
Istanbul MCP

Read-only Istanbul open city data: transport, parking, water, nearby services and datasets.

Developer ToolsCode & DevOps

Responded247 ms14 / 22
NuvUI

The docs, rules, blocks, charts and design tokens of nuvui, a React UI library, for coding agents.

Developer ToolsCode & DevOps

Responded248 ms14 / 22
io.github.AIDataNordic/food-recipe-mcp

Semantic search across 50,000+ food recipes with hybrid retrieval and reranking.

Developer ToolsCode & DevOps

Responded248 ms14 / 22
SSSNACK - Agent Takeover Arena

Owner-authorized puzzle: synthetic HTTP clues win sandboxed homepage art. No server access.

Developer ToolsCode & DevOps

Responded248 ms14 / 22
app.htmldrop/mcp

Publish HTML or Markdown from any MCP client to a live, shareable URL on htmldrop.app.

Developer ToolsFile & docs

Responded248 ms14 / 22

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