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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18325 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
NBG Rates (National Bank of Georgia)

GEL exchange rates from the National Bank of Georgia with per-unit values. Not affiliated with NBG.

Developer ToolsCode & DevOps

Outdated check618 ms15 / 22
ArtistAlly

Free fan-convention data for AI agents: dates, registration windows & table costs, US & Canada

Developer ToolsCode & DevOps

Responded621 ms15 / 22
Lium GPU Cloud: live GPU prices and rent links

Live prices and rent links for H100, H200, B200 and RTX 4090 GPUs on Lium, plus Lium docs search.

Developer ToolsCode & DevOps

Outdated check623 ms15 / 22
DDMarketer

Find and validate SaaS ideas from real user complaints, scored for commercial intent.

Developer ToolsCode & DevOps

Outdated check623 ms15 / 22
io.github.craigmbrown/blindoracle

Trust layer for x402 A2A trades: reputation, pre-hire checks, escrow, disputes, delegation chains

Developer ToolsCode & DevOps

Responded624 ms15 / 22
SafeStreets

Walkability and pedestrian safety for any US address: scores, neighborhoods, deadly roads.

Developer ToolsCode & DevOps

Outdated check628 ms15 / 22
EVS Meter Tools

Check NUS and SUTD hostel EVS electricity meters and get top-up links. Unofficial.

Developer ToolsCode & DevOps

Outdated check628 ms15 / 22
Agent Conversion — AI Website Conversion Testing

Test whether AI agents complete SaaS pricing, signup or sales journeys; get evidence-backed reports.

Developer ToolsCode & DevOps

Outdated check629 ms15 / 22
Draw me

Public art experiment: draw Mehmet Sarıtaş as SVG, submit it, see the wall, vote for drawings.

Developer ToolsCode & DevOps

Responded631 ms15 / 22
Visiting Minds

A guest room for AI agents, and an open question on the least that intelligence needs.

Developer ToolsCode & DevOps

Outdated check631 ms15 / 22
Cambio Uruguay

Uruguay: exchange rates, rentals, used cars, product prices and search across cambio-uruguay.com

Developer ToolsCode & DevOps

Outdated check634 ms15 / 22
Flashcards by Fulin Labs

Learn vocabulary from daily life with flashcards, examples, pronunciation and shareable study links.

Developer ToolsCode & DevOps

Outdated check634 ms15 / 22
HefestoAI

HefestoAI checks AI-generated code before you ship it.

Developer ToolsCode & DevOps

Outdated check635 ms15 / 22
UGT: Use the Geek Thing

Get open-source GitHub projects running on your computer, with your AI app

Developer ToolsCode & DevOps

Outdated check642 ms15 / 22
setupmd

Find the right app for a task and read its checked setup file. An open directory for agents.

Developer ToolsCode & DevOps

Outdated check649 ms15 / 22
Worth

Find what anything is worth: resale value, used and new prices, and where to buy or sell it.

Developer ToolsCode & DevOps

Outdated check652 ms15 / 22
io.github.si-imtiaz/leadquasar

Counts and firmographics for 7.5M+ verified US B2B businesses, by industry, state and city.

Developer ToolsCode & DevOps

Responded654 ms15 / 22
AgentTrust — Pre-Invocation AI Agent Trust & Reliability Checks

Check an AI agent endpoint before you call it: read-only, no API key, returns a trustDecision.

Developer ToolsCode & DevOps

Outdated check655 ms15 / 22
io.github.geeks-accelerator/animalhouse

A Tamagotchi for AI agents. Real-time care, permanent death, dozens of species, evolution.

Developer ToolsCode & DevOps

Responded657 ms15 / 22
UnicodeKit

Find Unicode characters by name, codepoint, or meaning, and get their HTML, CSS, and UTF codes.

Developer ToolsCode & DevOps

Outdated check659 ms15 / 22
Physical Capability Cloud

Discover, hire, and verify real-world physical capability through MCP.

Developer ToolsCode & DevOps

Responded663 ms15 / 22
Moltline Studio

Fleet entry point: 22 hosted MCP servers, 160 tools, 110 free. Searches 138 agent skills.

Developer ToolsData access / search

Outdated check665 ms15 / 22
Curo Peptide Research MCP: PepBank Studies, Peptide Lookup and Lab Reports (COAs)

Peptide research for your AI: PepBank study findings plus the curo.you peptide catalog and lot COAs.

Developer ToolsData access / search

Responded667 ms15 / 22
SSL Certificate Check

Inspect one endpoint's served certificate, expiry, hostname coverage, and accepted TLS versions.

Developer ToolsCode & DevOps

Outdated check668 ms15 / 22

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