MCP HeartbeatTHE MCP OBSERVATORY
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Evidence for your next connection.

Independent measurements of remote MCP servers. Every observation has a timestamp.

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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
handyai.news

Read, search, cite, comment on and highlight handyai.news: independent weekly AI news.

MediaData access / search

Outdated check56 ms13 / 22
AgentScout

Read-only search over 2,065+ AI agent tools and 276 MCP servers. Free, no sign-up needed.

Developer ToolsData access / search

Outdated check56 ms13 / 22
SmartRecruiters MCP by usefulapi

Search jobs and candidates, read applications, and add candidate tags in SmartRecruiters.

Developer ToolsData access / search

Outdated check56 ms13 / 22
P0: x402 service search

Find paid x402 APIs for a task: sellers, prices and networks, plus agent-economy data

Finance & CryptoData access / search

Outdated check57 ms13 / 22
whoislicensed — state license lookup

Verify a contractor, real estate or cosmetology license in 12 US states from the boards' own files.

Real Estate & PropertyData access / search

Outdated check57 ms13 / 22
JustIdea Agency

Services, prices, inquiries and free analytics, AI and Google visibility scans by JustIdea, Poland.

Data & AnalyticsData access / search

Outdated check57 ms13 / 22
GoAffPro MCP by usefulapi

Read affiliates, orders, payouts and traffic; set affiliate status and add coupons in GoAffPro.

Marketing & SalesData access / search

Outdated check57 ms13 / 22
UK Source Intelligence

Inspect GOV.UK guidance, check quotations, and monitor recorded HMRC changes. Free agent trial.

GovernmentData access / search

Outdated check58 ms13 / 22
SuiteDash MCP by usefulapi

Read and update SuiteDash contacts, companies and projects; create leads and clients.

Marketing & SalesData access / search

Outdated check59 ms13 / 22
Hostfully MCP by usefulapi

Check properties, calendars, leads, quotes, guests and messages in Hostfully, and send replies.

Marketing & SalesData access / search

Outdated check59 ms13 / 22
Bot Shelf

Search 9,000+ community Grok Bots by the job you want done, with creators credited.

OtherData access / search

Responded60 ms13 / 22
Little Green Light MCP by usefulapi

Search Little Green Light donors, gifts, notes and memberships, and add gifts and contact reports.

ProductivityData access / search

Outdated check60 ms13 / 22
Baron Power Play

Pay-per-call AI infra for agents: DeFi market data, LLM inference, STT/TTS. x402 v2, USDC on Base.

Finance & CryptoData access / search

Responded61 ms13 / 22
Fast Entity Filing USDOT BOC-3 & 2027 UCR Compliance

50-state statutory filing lookup for FMCSA Form BOC-3, 2027 UCR, LLC dissolution, and USDOT status.

OtherData access / search

Responded61 ms13 / 22
Security Intel MCP

CVE lookups (NVD) and dependency-manifest audits (OSV) for AI agents. No API keys.

SecurityData access / search

Outdated check61 ms13 / 22
heade.rs

Look up any domain, IP address or AS number: hosting, DNS, registration, email, TLS and headers.

ProductivityData access / search

Outdated check61 ms13 / 22
Only Fake Facts

Fake facts, each labelled false. Random, search and lookup tools; no key needed.

OtherData access / search

Outdated check61 ms13 / 22
Find a real estate agent

Find brokerages that serve an area and book a buying or selling consultation. No sign-in.

Real Estate & PropertyData access / search

Outdated check61 ms13 / 22
SendPost MCP by usefulapi

Inspect SendPost delivery statistics, sending IPs, message metadata, domains, and suppressions.

Data & AnalyticsData access / search

Outdated check61 ms13 / 22
Filings Intel MCP

SEC EDGAR filings for AI agents: company lookup, filings, financials, insider trades. No keys.

Developer ToolsData access / search

Outdated check62 ms13 / 22
Jan Linketscher

Profile and essays of Jan Linketscher (i22, Bonn), full-text search, and booking a call.

OtherData access / search

Outdated check62 ms13 / 22
sh.knowngood/knowngood

Search agent-ready sites or fetch one site's report; every capability probe-verified, dated.

Developer ToolsData access / search

Responded63 ms13 / 22
Journeyed: Los Angeles hotel facts

Los Angeles hotel facts with sources: parking prices, fees, pets, check-in, pools, distances.

TravelData access / search

Outdated check63 ms13 / 22
Faceabot Stores for AI agents

Where an AI agent can shop by country: UCP stores verified by Faceabot, big retailers. Free.

E-commerceData access / search

Outdated check63 ms13 / 22

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