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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2912 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
switch402

Markdown scrape, site map, page metadata, screenshots, web search and PDF to text. Pay per call

OtherData access / search

Responded92 ms12 / 22
The List Access

Search the public Dutch event calendar by artist, city, venue, genre and date. Read-only.

ProductivityData access / search

Outdated check95 ms12 / 22
Printable Calendar Maker

Make a printable calendar as a print-ready vector PDF without leaving the chat.

Developer ToolsCode & DevOps

Outdated check95 ms12 / 22
Zovo Rent Receipt Maker

Make rent receipts for HRA in India as one print-ready PDF.

Developer ToolsCode & DevOps

Outdated check96 ms12 / 22
io.github.NitroRCr/gread

An MCP server that gives your AI access to the source code and docs of all public github repos

Developer ToolsCode & DevOps

Outdated check97 ms12 / 22
Zovo Activity Diagram

Turn a few lines of text into a UML activity diagram document, and check the flow.

Developer ToolsFile & docs

Outdated check97 ms12 / 22
Zovo Booklet Print

Turn a PDF into a booklet you can print at home, fold in half and staple on the fold.

Developer ToolsCode & DevOps

Outdated check99 ms12 / 22
Zovo Page Numbers

Add page numbers, Bates numbers or a text watermark to a PDF document right in the chat.

Developer ToolsFile & docs

Outdated check100 ms12 / 22
Mergewell Mail Merge

Mail merge from Excel or CSV to PDF, right in the chat.

Developer ToolsFile & docs

Outdated check100 ms12 / 22
Zovo State Diagram

Turn a few lines of text into a UML state machine diagram document, and check the machine.

Developer ToolsFile & docs

Outdated check101 ms12 / 22
Zovo PDF Maker

Turn Markdown or plain text into a clean PDF document to print or share, plus an editable Word file.

Developer ToolsFile & docs

Outdated check101 ms12 / 22
Zovo Cross Sum Puzzles

Make printable cross sum puzzles for puzzle fans, teachers and students as a PDF with an answer key.

EducationCode & DevOps

Outdated check101 ms12 / 22
Zovo Countdown Chain

Make a printable countdown calendar to the day you are waiting for: a vacation, a wedding.

TravelCode & DevOps

Outdated check105 ms12 / 22
Zovo Salary Slip Maker

Make a salary slip for an employee in India as a print-ready PDF and an Excel file.

Developer ToolsFile & docs

Outdated check107 ms12 / 22
Sheetwise Label Maker

Print address labels from a list or a spreadsheet without opening Word.

ProductivityFile & docs

Outdated check107 ms12 / 22
ManifoldBT Docs

Docs for writing manifoldbt backtests: DSL rules, signatures, examples and error fixes.

OtherOther

Responded108 ms12 / 22
Zovo Sheet to PDF

Turn a CSV or Excel sheet into a clean, print-ready PDF table right in the chat.

Developer ToolsFile & docs

Outdated check108 ms12 / 22
Zovo Invoice Ledger

Put a batch of supplier invoices into one spreadsheet with net, tax and gross totals.

Finance & CryptoFile & docs

Outdated check108 ms12 / 22
Zovo Document Compare

Compare two documents for differences and see each word that changed, not a summary.

Developer ToolsFile & docs

Outdated check110 ms12 / 22
voidjet empty legs

Search empty-leg private jet offers; prepare inquiries and alerts the user confirms by email.

ProductivityCommunication & messaging

Outdated check113 ms12 / 22
DrawKind Secret Santa

Draw names for Secret Santa without sign-ups or email addresses.

Developer ToolsCommunication & messaging

Outdated check113 ms12 / 22
com.auto-reader/ocr

Arabic-first OCR, translation and document extraction. First call mints a free trial key.

OtherFile & docs

Outdated check117 ms12 / 22
FreeSign — Free e-signature

Free e-signature for humans and AI agents — zero-document PDF signing from hashes only.

Developer ToolsFile & docs

Responded122 ms12 / 22
Zovo Habit Tracker

Make a printable habit tracker for any month as a print-ready PDF.

Developer ToolsCode & DevOps

Outdated check122 ms12 / 22

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