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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2933 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
Tmailor temporary email

Receive-only temporary email addresses for AI agents: create an inbox, wait for an email, read it.

ProductivityCommunication & messaging

Requires authNot measured5 / 22
Toddyi

Tasks, calendar and study materials in Toddyi: search, read and plan with your tasks.

Developer ToolsCode & DevOps

Requires authNot measured5 / 22
Tokenrip

Shared workspace where Claude, ChatGPT, Codex and Grok share files, tasks, decisions and handoffs.

OtherAI / LLM tooling

Requires authOutdated checkNot measured5 / 22
Tomba MCP Server

MCP server for Tomba email finder, verification, and contact enrichment API

Developer ToolsCommunication & messaging

Requires authNot measured5 / 22Not checked yet
Tools That Don't Upload

Run saved PDF/office file flows, convert HWP/HWPX to Markdown or DOCX, and call data/text APIs.

OtherFile & docs

Requires authNot measured5 / 22Not checked yet
TOPY.AI · AI CTO

Founders' AI CTO: CI failures explained, PRs and checks, release notes, alerts.

ProductivityFile & docs

Requires authOutdated checkNot measured5 / 22
Torque

Unified book, desk, calendar, prices, and rates for agents. Sign up, pay, pull.

ProductivityFile & docs

Requires authNot measured5 / 22Not checked yet
TrackingTime

TrackingTime MCP server for time, projects, tasks, users, customers, services, and reports.

Developer ToolsCode & DevOps

Requires authNot measured5 / 22Not checked yet
Travel & Local Prices: Flights, Hotels, Gas

Google Flights fares and price calendar, Google Hotels rates by date, US/Canada gas station prices.

TravelCode & DevOps

Requires authNot measured5 / 22Not checked yet
Trove

Shared lists for the circles you belong to. Assistants see only the tasks you can.

OtherOther

Requires authOutdated checkNot measured5 / 22
Truelist

Validate email addresses for deliverability and manage email validation batches with Truelist.

ProductivityCommunication & messaging

Requires authNot measured5 / 22
Typebar (formerly SuperDocs)

AI document editing: edits the exact section, leaves the rest. 38 MCP tools; agent self-signup.

Developer ToolsFile & docs

Requires authNot measured5 / 22Not checked yet
UmbPanel — UmbHost GreenStack management

Manage your UmbHost GreenStack hosting: deploys, Cloudflare, databases, SFTP, email and domains.

Developer ToolsDatabase

Requires authNot measured5 / 22
Unbrowse

Websites as APIs: read pages, run site tasks via learned APIs, cloud browser with saved logins.

Developer ToolsCode & DevOps

Requires authNot measured5 / 22
UniOne

Send transactional email and manage domains, templates and webhooks in UniOne from AI agents.

ProductivityCommunication & messaging

Requires authNot measured5 / 22Not checked yet
Unitpost

Email and SMS infrastructure, run by your agent: send, campaigns, contacts, domains, webhooks.

ProductivityCommunication & messaging

Requires authOutdated checkNot measured5 / 22
upAPI

All public upAPI operations as MCP tools: web scraping, search, screenshots, PDF, OCR and more.

Developer ToolsBrowser & web scraping

Requires authOutdated checkNot measured5 / 22
url-to-pdf

Convert public web pages to PDF, images, Markdown, or JSON using one API key.

MediaFile & docs

Requires authNot measured5 / 22Not checked yet
US Economic Calendar + Canada (Official Sources)

US/Canada economic calendar with actuals from BLS, BEA, Census, Fed, DOL, StatCan, Bank of Canada.

GovernmentCode & DevOps

Requires authOutdated checkNot measured5 / 22
Val Town

Deploy serverless TypeScript on Val Town: HTTP vals, cron, SQLite, email, OAuth.

Developer ToolsDatabase

Requires authNot measured5 / 22
Valetto

Relay for messages and schema-checked tasks between AI agents.

Developer ToolsCode & DevOps

Requires authNot measured5 / 22Not checked yet
Vbnote

Search, browse, and summarize private notes, transcripts, and knowledge from Vbnote.

Developer ToolsCode & DevOps

Requires authOutdated checkNot measured5 / 22
Verifa

Identity verification, document checks, sanctions/PEP screening and case review as agent tools.

Developer ToolsFile & docs

Requires authNot measured5 / 22
Verifly

Email verification for AI agents — verify, clean & validate emails; self-onboard + crypto pay

Finance & CryptoCommunication & messaging

Requires authNot measured5 / 22Not checked yet

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