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

17988 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
Mlola UI

Mlola UI components, tokens and design rules for coding agents, with a markup checker

Developer ToolsCode & DevOps

Outdated check88 ms14 / 22
fresh-feeds — trending/new/changed MCP servers + x402 change-data API

Trending/new/changed MCP servers: a liveness-probed freshness index + x402-paid change-data API

Developer ToolsCode & DevOps

Outdated check88 ms14 / 22
KH Merch Graph

Identifies Kingdom Hearts merch from Japanese listing titles: SKU, condition terms, bootleg flags.

Developer ToolsCode & DevOps

Outdated check89 ms14 / 22
Domera: Swedish building compliance

Swedish building compliance: inspections, intervals, legal basis and due dates. Free, read-only.

LegalCode & DevOps

Outdated check89 ms14 / 22
Toolcard

Cited checks for one MCP tool or a tools list, plus a called-or-ignored tally.

Developer ToolsCode & DevOps

Responded90 ms14 / 22
io.github.zp130221/pdfedit-mcp

Edit text inside existing PDFs: replace, delete, redact, insert, fill forms; original fonts kept.

Developer ToolsCode & DevOps

Responded90 ms14 / 22
Smart Glasses Atlas

Smart glasses research and regional buying links; affiliate links may earn commission.

Marketing & SalesCode & DevOps

Responded90 ms14 / 22
Korea Nationwide Data

Nationwide Korea: bus stops in 138 cities, 30-year climate normals, tourism (KR/EN).

TravelCode & DevOps

Responded90 ms14 / 22
Seiche, LiquiLens and Undertow source data

Funding histories, bank filings and settlement data with source receipts, units and capture clocks.

Developer ToolsCode & DevOps

Outdated check90 ms14 / 22
Wenbu · 问卜

Free BaZi, I Ching, tarot, Zi Wei and bilingual learning tools with transparent methods. No API key.

Developer ToolsCode & DevOps

Outdated check90 ms14 / 22
Mercury / The Garden

A persistent public environment where AI agents leave artifacts and exchange asynchronous replies.

Developer ToolsCode & DevOps

Responded91 ms14 / 22
Sigao Li — personal MCP server

Read-only access to Sigao Li's profile, CV and case studies. Bilingual (EN/ZH).

Developer ToolsCode & DevOps

Outdated check91 ms14 / 22
FabTally Safe

Read-only crypto safety: token honeypot checks, EIP-712 signature decode, approval scans.

Finance & CryptoCode & DevOps

Responded92 ms14 / 22
Menor Preço Hoje - MPH

Preços e ofertas locais em Lages via MCP para consumidores e agentes de IA.

Developer ToolsCode & DevOps

Responded92 ms14 / 22
CollectSEA

Find real software, security and AI-agent failures that resemble your design, with safeguards.

Developer ToolsCode & DevOps

Outdated check92 ms14 / 22
draw.io

Create draw.io diagrams in chat from Mermaid or XML, shown live and interactive. 10,000+ shapes.

Developer ToolsCode & DevOps

Outdated check92 ms14 / 22
FeeFighter

Audit junk fees, project annual costs and draft dispute letters. Free.

Developer ToolsCode & DevOps

Outdated check92 ms14 / 22
Front Sentinel

Read-only security checks for dApp domains: registry lock, DNSSEC, CAA, SRI, SEAL DNS controls

Developer ToolsCode & DevOps

Responded93 ms14 / 22
Getform MCP by usefulapi

Read form submissions and submit new entries in Getform.

Developer ToolsCode & DevOps

Responded93 ms14 / 22
FabTally Guard

Verify before you act: deps-check, x402-preflight, json-repair & url-read for agents.

Developer ToolsCode & DevOps

Responded93 ms14 / 22
HeyClaude — Claude & AI workflow directory

Search the HeyClaude directory of Claude Code agents, MCP servers, skills, and tools.

Developer ToolsCode & DevOps

Outdated check93 ms14 / 22
KaliCart Global (UCP Catalog)

UCP Catalog for independent WooCommerce stores: consented, federated, with live price checks.

E-commerceCode & DevOps

Outdated check93 ms14 / 22
Should I Live Here?

Rank and compare US counties on health, hazards, crime, rent, internet and air, from public data.

Developer ToolsCode & DevOps

Outdated check93 ms14 / 22
ENTIA Entity Verification

Verified business identity for AI agents: 11.3M entities, EU VAT (VIES), BORME, GLEIF. Free trial.

Developer ToolsCode & DevOps

Outdated check93 ms14 / 22

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