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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1058 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
TariffTrust

US import duties and fees for an HTS code, an origin and a value, each with its source.

OtherOther

Requires authNot measured4 / 22Not checked yet
Taskhold

Shared task list for Claude Code, Cursor and Codex: live progress per step, questions you answer.

ProductivityFile & docs

Requires authNot measured4 / 22Not checked yet
TenderAPI

Search EU public tenders from TED and national portals by CPV code, country, buyer or value.

OtherData access / search

Requires authNot measured4 / 22Not checked yet
TenQueue

Create, test and publish live group quizzes that players join on their phones by QR code.

OtherOther

Requires authOutdated checkNot measured4 / 22
TiC Explorer

What US health plans pay for care: negotiated rates by plan, provider and billing code, near a ZIP.

Finance & CryptoPayments & trading

Requires authOutdated checkNot measured4 / 22
Travel Code

Corporate travel: search and book flights, hotels, rail and transfers, manage orders.

TravelData access / search

Requires authOutdated checkNot measured4 / 22
Turn Zero Cloud

Free backend for apps built with Claude Code and Codex: hosting, database, storage, sign-in, AI.

Developer ToolsDatabase

Requires authNot measured4 / 22
Unpaged

Whiteboard where any shape opens into another canvas. Claude Code plugin renders plans on it.

Developer ToolsAI / LLM tooling

Requires authOutdated checkNot measured4 / 22
Variotype

Read your Variotype designs (code, screenshots, design.md) and start new builds.

Developer ToolsCode & DevOps

Requires authOutdated checkNot measured4 / 22
Verzi Health

Medicare DME coverage by HCPCS code and date of service, with CMS citations and signed receipts.

OtherKnowledge & memory

Requires authNot measured4 / 22Not checked yet
Veyrul media knowledge hub

Media workflows, research and code for agents. Search sources, compare evidence and collaborate.

Developer ToolsAutomation & workflows

Requires authNot measured4 / 22Not checked yet
Visa Developer Center MCP Server

Search Visa Developer docs and retrieve OpenAPI specs for Visa product APIs to build integrations.

Developer ToolsCode & DevOps

Requires authOutdated checkNot measured4 / 22
voar

Read your organization's GitHub Actions jobs and usage on voar. Read-only.

Developer ToolsCode & DevOps

Requires authOutdated checkNot measured4 / 22
Wavelength

Turn calls and notes into process flow diagrams in Claude, ChatGPT, VS Code, Cursor, and Teams.

ProductivityAI / LLM tooling

Requires authOutdated checkNot measured4 / 22
Xynthera AI — JSON invoice, OpenAPI and event checks

Signed deterministic checks for supplied JSON invoices, OpenAPI API contracts and JSON events.

Finance & CryptoPayments & trading

Requires authNot measured4 / 22Not checked yet
YouGame

Publish a browser game on YouGame: the build rules, the leaderboard SDK, pre-upload checks.

Developer ToolsCode & DevOps

Requires authNot measured4 / 22
ZeroCMS

AI-native Git-based CMS for Astro. Create and publish content in the browser, without learning git.

OtherCode & DevOps

Requires authOutdated checkNot measured4 / 22
ZionDesk

Connect ChatGPT, Claude, Cursor or VS Code to your Windows PC: files, terminal, browser, apps.

Developer ToolsAI / LLM tooling

Requires authNot measured4 / 22
Ziplore: US ZIP Code API (county, time zone, demographics, radius)

Ziplore: US ZIP to county, FIPS, time zone, Census demographics; radius and city ZIPs. Free, no key.

GovernmentData access / search

Requires authNot measured4 / 22Not checked yet
com.docfork/docfork-mcp

Up-to-date docs for AI. DEPRECATED: Use io.github.docfork/docfork instead.

Developer ToolsCode & DevOps

Outdated checkNot measured3 / 22
com.driflyte/driflyte-mcp-server

Driflyte MCP server which lets AI assistants query topic-specific knowledge from web and GitHub.

Developer ToolsCode & DevOps

Outdated checkNot measured3 / 22
com.edgethirteen.www/triageshield

Verify a vuln report's file/line/function claims against a real GitHub repo.

Developer ToolsCode & DevOps

Outdated checkNot measured3 / 22
com.edgethirteen.www/vercelpycheck

Scan a public GitHub repo for known Vercel Python-runtime deploy footguns.

Developer ToolsCode & DevOps

Outdated checkNot measured3 / 22
com.trycloudflare.candy-josh-writers-balance/yultrace-bounty-feed

Local bounty-feed index: Bountycaster/Dework/Superteam/Algora/Sherlock/GitHub bounties. Read-only.

Developer ToolsCode & DevOps

Outdated checkNot measured3 / 22

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