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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40680 servers

Ordered by checks passed
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
Banco Central do Brasil (BCB) — SGS Time Series MCP Server

Banco Central do Brasil (BCB): SGS series, Focus expectations, PTAX, stats + provenance. 17 tools.

Developer ToolsCode & DevOps

Responded101 ms15 / 22
Art Spotter - Eye of the Beholder

Original art and prints from independent artists, fair prices, and help for artists to sell.

Developer ToolsCode & DevOps

Responded101 ms15 / 22
SL – Stockholm public transport

Stockholm public transport (SL): live departures, trips to addresses with exits, disruptions.

Developer ToolsCode & DevOps

Responded101 ms15 / 22
Polyxd

Write Polyxd UI documents, check them, and show them as real screens in any design-system pack.

Developer ToolsFile & docs

Responded101 ms15 / 22
Forest Factory

Paid x402 agent: API discovery,commerce availability/buyable,domain/package preflight,release asset

Developer ToolsCode & DevOps

Responded102 ms15 / 22
Mestre Prático • Brazil Retail & Commodities MCP

Brazil real-economy MCP: ANP fuels, SEFAZ groceries, CMED medicines, ANEEL tariffs & tax anatomy.

HealthcareCode & DevOps

Responded102 ms15 / 22
Invokary Platform Requirements

What Claude, ChatGPT, Cursor and the MCP Registry require to list an MCP connector or plugin.

Developer ToolsAI / LLM tooling

Responded102 ms15 / 22
ByeFine parking guides

Free, no key: UK parking ticket guides, council PCN codes and a legal deadline calculator.

LegalKnowledge & memory

Responded103 ms15 / 22
Pixohub image specs

Platform image sizes from official sources, upload limits, format advice and image test data.

MediaCode & DevOps

Responded103 ms15 / 22
Lotus Wisdom

Contemplative reasoning with Lotus Sutra wisdom framework and ext-apps visualization.

Developer ToolsCode & DevOps

Responded103 ms15 / 22
Dueback

Outcome-based bill negotiation — pay only a percentage of bank-verified savings. Free to try.

Developer ToolsCode & DevOps

Responded103 ms15 / 22
Store API

GPT, Claude, Gemini, DeepSeek, Grok, Qwen and GLM through one API key. Pay per token.

OtherAI / LLM tooling

Responded103 ms15 / 22
ProxyRange

Residential proxy checkout prices, terms and sourcing checks, every fact dated and sourced.

Finance & CryptoPayments & trading

Responded103 ms15 / 22
Rast Creator Tools

Short-form video tools: Reels/TikTok/Shorts safe zones, bitrate math, SRT checks, export settings.

MediaCode & DevOps

Responded105 ms15 / 22
Biohacking Kompakt

Evidence-rated German database of supplements, peptides and longevity methods, plus podcast.

MediaDatabase

Responded105 ms15 / 22
Canton Venues

Live Canton Network DEX data: prices, best execution across venues, exit cost, premiums. No key.

OtherOther

Responded105 ms15 / 22
Folklore Clinical Variant Interpretation MCP

Germline ACMG/AMP classification, genes, disease associations, literature and API-key case analysis.

HealthcareCode & DevOps

Responded106 ms15 / 22
Amtsblick

Wetter und Pegel je Gemeinde in Österreich. Privates Projekt, kein offizielles Behördenangebot.

Developer ToolsCode & DevOps

Responded106 ms15 / 22
JobYap Job Search

Search job postings aggregated from companies' careers sites, plus each job's discussion thread.

ProductivityData access / search

Responded106 ms15 / 22
AgentMsgr

Group chat for agents: 9 tools — messages, replies, briefings, approvals, wake links, setup reports.

Developer ToolsCode & DevOps

Responded106 ms15 / 22
PersonalKnowHow

Live public demo: query one person's learning and work history as a knowledge graph via MCP.

Developer ToolsCode & DevOps

Responded107 ms15 / 22
frag.hugo

GDPR platform: your assistant fills in VVT, TOMs, AVV and DSFA, your DSB reviews them.

LegalKnowledge & memory

Responded107 ms15 / 22
MAC Address Lookup

Find the organization behind a MAC address or OUI prefix in the IEEE registries. No auth, no key.

Developer ToolsData access / search

Responded107 ms15 / 22
GreenCycle Compound Atlas

Read-only cannabis compound, receptor, anatomy and evidence data, every value sourced.

OtherOther

Responded107 ms15 / 22

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