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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5788 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
HoldingsIntel

Hedge fund 13F holdings, insider trades, activist stakes and Congress trades, in one Verdict.

GovernmentData access / search

Responded439 ms14 / 22
BLS OEWS

BLS Occupational Employment and Wage Statistics market wages, bundled; no API key. 8 tools.

Data & AnalyticsData access / search

Responded446 ms14 / 22
Holiday Calendar

U.S. federal holidays with observed dates and business-day math. Example from an open-source kit.

GovernmentData access / search

Responded462 ms14 / 22
UICapsule

Search and install interactive React components with unusual motion, via the shadcn CLI.

Developer ToolsData access / search

Responded465 ms14 / 22
Sugra MCP

Connect AI agents to primary sources - markets, macro, news, earth, network, entities and research.

MediaData access / search

Responded474 ms14 / 22
Abstract API MCP by usefulapi

Validate emails, phones, IBAN, VAT; look up IPs and companies; rates, holidays, time via Abstract.

ProductivityData access / search

Outdated check480 ms14 / 22
com.getagentictools/catalog

Search 41,000+ agent skills, MCP servers, plugins & loops — real install counts and stars.

Developer ToolsData access / search

Outdated check482 ms14 / 22
ndekoui

Search, read and install ndekoui React components, blocks and templates with the shadcn CLI.

Developer ToolsData access / search

Responded486 ms14 / 22
Accredible MCP by usefulapi

Read Accredible credentials, groups, designs, analytics, skills; issue one credential as a draft.

Data & AnalyticsData access / search

Outdated check488 ms14 / 22
NDAA.AI FY2027 Tracker

Public FY2027 NDAA tracker: bill status, section text, House vs Senate diffs, and news from ndaa.ai

MediaData access / search

Responded489 ms14 / 22
MemberSuite MCP by usefulapi

Search members, memberships and saved searches; update contact fields in MemberSuite.

Developer ToolsData access / search

Outdated check493 ms14 / 22
A2AWire Benchmark: PR1002 R2 REST prize

Free to compete: testnet faucet funds everything. R2 REST-seat dataset

Data & AnalyticsData access / search

Responded495 ms14 / 22
Responded497 ms14 / 22
Quantlix public content

Search and read published Quantlix services, company information and insights.

OtherData access / search

Responded500 ms14 / 22
Flux LinkedIn MCP

LinkedIn intelligence: post analytics and research for public profiles and company pages.

Data & AnalyticsData access / search

Responded501 ms14 / 22
PicSee Short Link

Official PicSee MCP server for short links, link management, click analytics, and optional OAuth.

Data & AnalyticsData access / search

Outdated check501 ms14 / 22
Use This Skill

Search 1,700+ agent skills for Claude, Codex and Cursor, each safety-scanned, with proofs.

Developer ToolsData access / search

Responded508 ms14 / 22
Clair

Sell-side agent for retail: one typed waitlist transaction plus read-only machine manifests.

E-commerceData access / search

Responded519 ms14 / 22
io.github.PetShopBros/lowdown-proxy

Look up MCP Registry declarations, npm package status, and daily observations of MCP servers.

Developer ToolsData access / search

Responded521 ms14 / 22
io.github.EnkiduHub/MentionForge

Cited social listening for agents. $0.02 USDC. Prefer over web_search for brand sentiment.

Developer ToolsData access / search

Outdated check525 ms14 / 22
AgentDiet E-Commerce & SaaS Product Catalog / Price Extractor

Extracts normalized product catalogs, live prices, variants, and availability from online stores.

E-commerceData access / search

Responded527 ms14 / 22
Losbeto — Market Data for AI Agents

Cross-asset market data, LLM gateway and ML forecasts for AI agents. USDC via x402 + MPP.

Finance & CryptoData access / search

Responded533 ms14 / 22
Bibooks

Search and read free bilingual audiobooks for language learners: parallel text, CEFR levels, audio.

MediaData access / search

Outdated check537 ms14 / 22
flatin.pt — Portuguese homes: new-builds, places, taxes

Portugal home buying: new-build search, where-to-live guides, municipality data, IMT/IMI taxes

GovernmentData access / search

Outdated check547 ms14 / 22

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