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

5077 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
LexAtlas

Current law as data for AI: search, read and verify statutes and citations. CIS countries first.

LegalKnowledge & memory

Requires authOutdated checkNot measured6 / 22
Maguyva

Code intelligence for coding agents: semantic, AST, graph, and full-text search. 279+ languages.

Developer ToolsData access / search

Requires authNot measured6 / 22Not checked yet
Market Research API

Consumer demand signals across search, shopping and social. Free key at trendsapi.ai

E-commerceData access / search

Requires authNot measured6 / 22Not checked yet
Memegician

Search 400+ meme templates, see trends, render memes, or sign in to have AI write 6 memes.

OtherData access / search

Requires authNot measured6 / 22Not checked yet
Memocore

Cloud memory for AI agents and teams — save, search, recall.

Developer ToolsKnowledge & memory

Requires authNot measured6 / 22
miniDesk

Work your miniDesk support inbox from AI apps: read conversations, search docs, draft replies.

ProductivityCommunication & messaging

Requires authNot measured6 / 22Not checked yet
Multi Mail

Gmail, Outlook, Hotmail, Microsoft 365, Yahoo, iCloud and other IMAP mailboxes: search, read, send.

ProductivityCommunication & messaging

Requires authOutdated checkNot measured6 / 22
Naumu

Search, extend, and act on your team's Naumu knowledge graph: notes, threads, and nodes.

ProductivityData access / search

Requires authNot measured6 / 22
PlayDrop

Publish, test and share browser games on PlayDrop from your AI agent.

OtherAI / LLM tooling

Requires authNot measured6 / 22
PlugMCP directory

Search MCP servers and agent skills, compare them, and get install configs for your client.

Developer ToolsData access / search

Requires authNot measured6 / 22Not checked yet
Qlane

AI QA that runs your app in a browser on every pull request: projects, test targets, test cases.

Developer ToolsCode & DevOps

Requires authNot measured6 / 22
QuillHub

Meeting transcripts for AI agents: search calls, read who said what, transcribe files and links.

ProductivityAI / LLM tooling

Requires authNot measured6 / 22
refd

Read AI search visibility, competitors, and citations from refd; manage tracked prompts.

OtherKnowledge & memory

Requires authNot measured6 / 22
SearchConsole.ai

Read-only Search Console analytics, URL inspection, indexing diagnostics, and sitemaps.

Data & AnalyticsData access / search

Requires authOutdated checkNot measured6 / 22
SEO Trends API

Spot keyword demand rising or fading across search and social. Free key at trendsapi.ai

Marketing & SalesData access / search

Requires authNot measured6 / 22Not checked yet
Soundza

Free sound effects, music and ambience for games, videos and apps. Search, play and download.

MediaData access / search

Requires authOutdated checkNot measured6 / 22
SpecStream

The live web data engine for teams and agents: Search API, Extract API and Deep Search.

Developer ToolsData access / search

Requires authNot measured6 / 22Not checked yet
StealAds

Search competitor Meta ads, find winning and longest-running ads, and adapt one for your brand.

Marketing & SalesData access / search

Requires authOutdated checkNot measured6 / 22
String Web Access

Search the web, fetch any URL and map a site as clean, LLM-ready Markdown.

Developer ToolsFile & docs

Requires authNot measured6 / 22Not checked yet
Whimsical

Create and edit flowcharts, mind maps, wireframes, and docs in Whimsical, or search your workspace.

Developer ToolsData access / search

Requires authOutdated checkNot measured6 / 22
YouTube Transcript AI

Read YouTube transcripts and search what people say across 425k videos. Free API key.

MediaData access / search

Requires authNot measured6 / 22Not checked yet
YouTube Trends API

YouTube search volume and trending videos over time. Free key at trendsapi.ai

MediaData access / search

Requires authNot measured6 / 22Not checked yet
YouTube Trends MCP

YouTube search interest and trend data over time, with growth metrics. Free key at trendsmcp.ai

MediaData access / search

Requires authNot measured6 / 22Not checked yet
ai.argushq/enforcement-database

Search Argus HQ public FDA enforcement data: warning letters, recalls, approvals, 483s.

Developer ToolsDatabase

UnreachableNot measured5 / 22

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