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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2903 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
Framezone

Your life dashboard for AI: tasks, habits, goals, budgets, workouts, nutrition, journal, notes.

Data & AnalyticsData access / search

Responded360 ms13 / 22
Google Keep

Google Keep MCP, read and edit your notes, lists, labels and collaborators. Connect with your Google

Developer ToolsCode & DevOps

Outdated check360 ms13 / 22
Enriquecimento de Lead

Enriches a contact from a mobile number and email, returning the associated registration data. Platf

Developer ToolsCommunication & messaging

Outdated check361 ms13 / 22
NotebookLM

Google NotebookLM via natural language: create notebooks, add sources (PDF, URL, YouTube) and ask gr

MediaCode & DevOps

Outdated check367 ms13 / 22
Base de Conhecimento

Your private knowledge base: upload documents (.md, .txt, .docx, PDF, images), the platform indexes

MediaKnowledge & memory

Outdated check368 ms13 / 22
thenetworkery

DNS, email auth, TLS, BGP/RPKI, WHOIS and subnet tools with plain-English fixes, plus webhook URLs.

ProductivityCommunication & messaging

Outdated check370 ms13 / 22
com.mart402/free

Free read-only tools: Market402 x402 index search, operator track records, PDF price quotes.

Finance & CryptoData access / search

Outdated check378 ms13 / 22
Expo

Your Expo and EAS project in natural language: up to date SDK docs, cloud builds (status, logs, trig

Developer ToolsCode & DevOps

Outdated check380 ms13 / 22
HiveCloud CT-e / MDF-e

Transportation fiscal-document issuer from Bsoft by nstech (HiveCloud). Query CT-e (freight bill of

Developer ToolsFile & docs

Outdated check392 ms13 / 22
Veículos do Proprietário

Lists the vehicles linked to a CPF or CNPJ nationwide, from the document provided. Platform-hosted,

Developer ToolsFile & docs

Outdated check395 ms13 / 22
Kras-Trans: transport quotes, CMR, WZ and interest notes

Van transport quotes in Poland and the EU, quote status, CMR in 25 languages, WZ, interest notes.

ProductivityFile & docs

Outdated check395 ms13 / 22
Emboss

Make any PDF form fillable, fill it from data or documents, read it back, and fax the result.

Developer ToolsFile & docs

Outdated check401 ms13 / 22
MailByGet

Temporary receive-only email inboxes for agents. Create, list and read messages without signup.

ProductivityCommunication & messaging

Responded402 ms13 / 22
iinventedlight Library

Public notes and openly licensed reference library from iinventedlight.

ProductivityFile & docs

Responded430 ms13 / 22
Kariaa

Find jobs worldwide, check posts for scams, see typical pay, and apply to DataHouse remote tasks.

Developer ToolsCode & DevOps

Responded434 ms13 / 22
Toolaby docs

Search and read Toolaby's docs: payments, licences and paywalls for Chrome extensions.

Finance & CryptoPayments & trading

Responded434 ms13 / 22
zerm

Agent utility belt: memory, locks, webhook inboxes, timers, DNS, email, URL, timezone, cron

ProductivityCommunication & messaging

Outdated check435 ms13 / 22
HeroX AirDomes Docs

Read-only search and reading of HeroX reference docs and blog articles about air domes.

Developer ToolsData access / search

Outdated check437 ms13 / 22
ShareNotes

Create and read text notes at memorable links like sharenotes.dev/blue-fox-42. No key, no account.

ProductivityFile & docs

Outdated check438 ms13 / 22
Agent Provider Depot

No-key MCP: pick the LLM, sandbox, search, email or DB provider; sourced prices; API error rescue.

ProductivityCommunication & messaging

Responded453 ms13 / 22
HideMail

Private email aliases that forward to your inbox: create, find, edit and turn aliases off or on.

ProductivityCommunication & messaging

Responded454 ms13 / 22
Youanai Docs

Search and read public youanai.com pages on pricing, products and guides. No sign-in needed.

OtherData access / search

Outdated check459 ms13 / 22
Couryo free email tools

Free, no login: verify an email address, check SPF/DKIM/DMARC, explain SMTP errors, build SPF/DMARC.

ProductivityCommunication & messaging

Responded463 ms13 / 22
JSONPad documentation

JSONPad docs, API, SDK and CLI references, and offline checkers for write rules and flows.

Developer ToolsFile & docs

Outdated check463 ms13 / 22

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