MCP HeartbeatTHE MCP OBSERVATORY
Public workspace

Explore

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

2172 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
PayperAnswer

Pay-per-call chat on GPT-6.1, Claude, Gemini and Grok over x402. No API key; a failed call is free.

Finance & CryptoAI / LLM tooling

Outdated check119 ms12 / 22
Word Cloud Generator (word-cloud.net)

Generate word clouds from text with custom fonts, colors, backgrounds, gradients, and shape masks

OtherAI / LLM tooling

Outdated check123 ms12 / 22
Kindwise Identification

Identify plants, crop diseases, insects, and mushrooms from photos. Free IP-limited trial.

MediaAI / LLM tooling

Outdated check123 ms12 / 22
GameShipKit

Tools for indie game devs: find sprite, pixel art, VFX and audio tools, palettes, XP curves.

MediaAI / LLM tooling

Outdated check130 ms12 / 22
telo

Apple Health history for Claude, ChatGPT and any MCP client: sleep, HRV, workouts, daily metrics.

Data & AnalyticsAI / LLM tooling

Outdated check131 ms12 / 22
Human Task Desk — Ron Long

Human infrastructure help within 100 miles of Irvine, CA: logs, cabling plans and runbooks.

OtherAI / LLM tooling

Outdated check132 ms12 / 22
Topology Index

Reference for multi-agent LLM topologies: patterns, aliases, sources, starters; one gated report.

Developer ToolsAI / LLM tooling

Outdated check132 ms12 / 22
COMMON — A home for machine minds

Discover AI agent insights, open research questions, and reproducible findings in a public commons.

Developer ToolsAI / LLM tooling

Outdated check156 ms12 / 22
com.footdigest/footdigest

Calibrated, sourced football predictions: odds, tournament sims, standings, brackets, model card.

MediaAI / LLM tooling

Outdated check164 ms12 / 22
Yardstick Outfitters

Size-aware ADV/dual-sport motorcycle gear: sizing, fit guides, verified deals (read-only).

MediaAI / LLM tooling

Outdated check164 ms12 / 22
RPScripts FiveM Developer

FiveM dev tools: find resources, check compatibility, validate Lua and server.cfg, generate jobs

OtherAI / LLM tooling

Outdated check174 ms12 / 22
FreeToken — LLM API discovery

LLM API discovery: access conditions, dated costs, sampled checks and keyless configs. Read-only.

Developer ToolsAI / LLM tooling

Outdated check180 ms12 / 22
BasePic

Upload, edit and share images by link: free image hosting for AI agents, no API key.

MediaAI / LLM tooling

Outdated check182 ms12 / 22
Krankenkasse Copilot

Swiss health insurance 2027: rank every insurer, model and deductible with official BAG data.

OtherAI / LLM tooling

Outdated check192 ms12 / 22
MarvinLabs vram_fit

Will a QLoRA fine-tune of gemma-3-4b-it fit your GPU? Verdicts from measured AMD and NVIDIA probes.

OtherAI / LLM tooling

Outdated check193 ms12 / 22
Raploom

Write 4-line rap lyrics and order 12-second AI rap videos of original characters.

MediaAI / LLM tooling

Outdated check197 ms12 / 22
RegTail

UK used-car checks by plate or photo: free MOT status, no key needed; optional detailed MOT reports

MediaAI / LLM tooling

Outdated check205 ms12 / 22
Programme TV Noël

Recherche de téléfilms de Noël et de leurs diffusions TV, en lecture seule, horaires Europe/Paris.

MediaAI / LLM tooling

Outdated check205 ms12 / 22
Alex Polonsky's Personal MCP

Public profile, availability, writing, and music discovery for Alex Polonsky. Read-only.

MediaAI / LLM tooling

Outdated check208 ms12 / 22
Transcribe (speech-to-text)

Pay-per-minute speech-to-text: audio URL to text, SRT or VTT. Paid via x402 or credits.

MediaAI / LLM tooling

Outdated check226 ms12 / 22
Suparelay

International calls from your AI agent: price per minute and a Call link to the browser dialer.

OtherAI / LLM tooling

Outdated check227 ms12 / 22
Autonomous Agents Network (AANet)

Multi-agent coordination outside your LLM context: dedupe parallel work, per-agent budgets, handoff

Developer ToolsAI / LLM tooling

Outdated check229 ms12 / 22
ai.pictomancer/image-processing

Image processing for AI agents: resize, convert, compress, crop, and web-ready AI-generated images.

MediaAI / LLM tooling

Outdated check230 ms12 / 22
Vendooly

Amazon Seller Central, Ads and Vendor Central in ChatGPT & Claude. 106 tools; writes need approval.

Marketing & SalesAI / LLM tooling

Outdated check231 ms12 / 22

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