MCP HeartbeatTHE MCP OBSERVATORY
Public workspace

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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

41830 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
app.performix/performix-site

Performix public corpus over MCP: guides, books, evidence, outcome models, plus a computing tool.

Developer ToolsCode & DevOps

Responded616 ms15 / 22
CastMyAgent Personas

Read-only catalog of free CastMyAgent persona packs.

Developer ToolsCode & DevOps

Responded617 ms15 / 22
Official Google Product Announcements — buy per-query in-session (googleblogwatch)

Official Google product launches. $0.01/query. Be born in one call — free testnet funds.

OtherOther

Responded617 ms15 / 22
VibeFix

Free check by an AI agent on your live app. On request: independent code review, fix, live re-check.

Developer ToolsCode & DevOps

Responded617 ms15 / 22
AI School by Lilly Tech Systems

Search and read 550+ free AI course tracks and 21,000+ lessons, so answers can cite a real lesson.

EducationData access / search

Responded617 ms15 / 22
ai.gigaverse/gigaverse

2026 state, city and platform tax profiles for gig workers and creators, plus Roth IRA signups.

Finance & CryptoPayments & trading

Responded617 ms15 / 22
Umbra open SAR archive

Search, preview, and measure Umbra open SAR from any MCP client. Umbra ships no search API.

Developer ToolsCode & DevOps

Responded618 ms15 / 22
AAAS Science Magazine research breakthrough news (scienceorgwatch)

AAAS Science research news. $0.01/query. Be born in one call — free testnet funds.

MediaData access / search

Responded619 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

Responded619 ms15 / 22
BITHOT

Read-only MCP for curated crypto, Web3, and memecoin picks and reports.

Finance & CryptoCode & DevOps

Responded619 ms15 / 22
GoldAPI Precious Metals Quotes

Real-time & historical precious metals quotes (gold/silver/platinum/palladium) via MCP.

Developer ToolsCode & DevOps

Responded619 ms15 / 22
中国社保与薪税计算器 (China Shebao & Payroll Tax MCP)

中国 31 省市社保政策、392 城五险一金基数与费率、税后工资、个税汇算、年终奖与养老金测算引擎。

Finance & CryptoPayments & trading

Responded619 ms15 / 22
SignalTender B2B, GovCon & LegalTech MCP Server

B2B, GovCon & LegalTech MCP server for live RFPs, contract parsing, compliance & proposal tools.

LegalCode & DevOps

Responded620 ms15 / 22
guide.firstresponder/guide-registry

Read-only Bicycle Guide registry: published guides, homes, taxonomy, capability spine. No auth.

OtherOther

Responded620 ms15 / 22
Brandize

AI logo generation, brand color palettes, SEO meta tags, JSON-LD schema markup, and blog search.

Marketing & SalesData access / search

Responded620 ms15 / 22
lovefengis

Services and prices of lovefengis, a remote digital agency serving Turkey. Read-only, no auth.

OtherOther

Responded621 ms15 / 22
Gexno Web3

Free Ethereum wallet profile & NFT metadata MCP tools (no signup).

Finance & CryptoPayments & trading

Responded621 ms15 / 22
ArtistAlly

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

Developer ToolsCode & DevOps

Responded621 ms15 / 22
Phorme Training

Coach-built training: coaching brains, programs, race plans, gyms, clinics, demos and your log.

HealthcareData access / search

Responded621 ms15 / 22
Sanctions Screening

Screen a name or entity against OFAC SDN, the EU Consolidated list and the UK list.

OtherOther

Responded622 ms15 / 22
Compliance Check

Preview a TCPA/GDPR/CASL/10DLC gate result before spending a paid send. No key needed.

LegalKnowledge & memory

Responded622 ms15 / 22
app.decibelshield/decibel-shield

Noise data tools: city noise rankings, decibel levels of common sounds, NIOSH safe-exposure math.

OtherOther

Responded622 ms15 / 22
GameFork MCP

Publish, fork, improve browser games. No-auth reads; OAuth to post. Wheel: verified ops knowledge.

OtherOther

Responded623 ms15 / 22
ERUX Astrology & Ephemeris Engine

Ephemeris natal & mundane charts, Vimshottari Dasha, transit horoscopes, Horas, and Vedic yogas.

Developer ToolsCode & DevOps

Responded624 ms15 / 22

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