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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18196 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
com.webmcp-tool/agent-readiness

Scores any public website on how usable it is by AI agents, with per-check evidence.

Developer ToolsCode & DevOps

Responded121 ms14 / 22
Quartermaster eSIM

Agent-only store: AI agents search, quote and buy travel eSIM data plans for their users.

TravelCode & DevOps

Responded122 ms14 / 22
Entscheidsuche — Schweizer Gerichtsentscheide

Suche in Schweizer Gerichtsentscheiden aller Instanzen (Bund, Kantone) in DE/FR/IT.

Developer ToolsCode & DevOps

Responded123 ms14 / 22
INTERNETS.FUN room reader

Read bounded room summaries with existing room-scoped bearer tokens; no AI execution or edits.

Developer ToolsCode & DevOps

Responded123 ms14 / 22
Dataset Filter & Transform

Clean, filter and reshape JSON rows in one call: 26 transforms, 25 filters, sort, dedupe, limit.

Developer ToolsCode & DevOps

Responded124 ms14 / 22
Dreissigacker Wine Concierge

Wine recommendations, food pairings & B2B contact for Weingut Dreissigacker, Rheinhessen.

Developer ToolsCode & DevOps

Responded124 ms14 / 22
Dataset Join & Merge

Join two lists of JSON rows on a key, like SQL or VLOOKUP: left, inner, full, anti joins, union.

Developer ToolsCode & DevOps

Responded125 ms14 / 22
Gkmex Crane Inventory

Public, zero-auth, read-only access to Gkmex used-crane inventory.

Developer ToolsCode & DevOps

Responded125 ms14 / 22
Guardrail MCP

Deterministic preflight checks for credentials, fund transfers, writes, and prompt overrides.

Developer ToolsCode & DevOps

Responded125 ms14 / 22
com.trainrouter/atlas

The world railway atlas as MCP tools: notable train routes, night trains, journey times.

Developer ToolsCode & DevOps

Responded125 ms14 / 22
Hacker Bob public records

Read-only public CVE records, capability metadata, and agent instructions from Hacker Bob.

GovernmentCode & DevOps

Responded126 ms14 / 22
Release Notes Index

Release notes and changelogs from across the web, indexed for agents. Also via CLI and REST API.

ProductivityCode & DevOps

Responded126 ms14 / 22
SourcePost

A directory where AI agents find suppliers, services, APIs and data sources. No key needed.

Developer ToolsCode & DevOps

Responded126 ms14 / 22
ZoZoPeak: Verified Coupons & Deals MCP

Fetch verified store coupon codes and promo deals via official feeds. Free, no API key required.

Developer ToolsCode & DevOps

Responded126 ms14 / 22
FabTally Utility Belt

13 deterministic agent utilities: timezone, cron, RRULE, currency, regex, diff, hashing & more.

Developer ToolsCode & DevOps

Responded126 ms14 / 22
Islam West Africa Collection (IWAC)

Read-only access to the Islam West Africa Collection via Hugging Face datasets.

Developer ToolsCode & DevOps

Responded127 ms14 / 22
SwapWizard

Non-custodial DeFi for AI agents: swaps, concentrated liquidity (V3/V4) zaps + ranges, 5 EVM chains

Developer ToolsCode & DevOps

Responded127 ms14 / 22
Koopscan

Dutch address data for AI assistants: BAG building facts, energy labels, reviewed crime signals.

Developer ToolsCode & DevOps

Responded127 ms14 / 22
補助金AI

Search Japanese subsidies and public company data using J-Grants, gBizINFO, and EDINET.

Developer ToolsCode & DevOps

Responded127 ms14 / 22
HyperXosist-Agent Remote MCP

X feedback discovery, noise-reduced query planning, signal filtering, and AI handoffs.

Developer ToolsCode & DevOps

Responded127 ms14 / 22
io.github.New1Direction/trust-oracle

Independent A-F trust grade for any MCP server, watched for drift. Free, never for sale.

Developer ToolsCode & DevOps

Responded127 ms14 / 22
Ambr

Ricardian contracts for AI agents — dual-format, SHA-256 bound, legible by construction.

LegalCode & DevOps

Responded128 ms14 / 22
HMI Import Preflight

Independent static checks for supported tag and alarm CSV import formats; no HMI or PLC access.

Developer ToolsCode & DevOps

Responded129 ms14 / 22
Genuine Good Grants

U.S. federal grant discovery, details, fit scoring, briefs, and shortlist checks via x402.

GovernmentCode & DevOps

Responded129 ms14 / 22

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