Mmcp.market

Oh Fax MCP server

by ohfax.com·com.ohfax/ohfax·v0.1.0
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Outbound US/CA fax for agents: quote PDF, pay via MPP, get delivery receipt.

C60/100grade C
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Safety scan
C60/100

full report

Adoption
New

Little public usage data yet

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If you have run it, two minutes of your experience saves the next person an afternoon.

Oh Fax tools (4, 1 write)

write = sends, deletes, buys or posts
  • get_fax_receiptFree

    Verifiable delivery receipt for a completed fax. Available once the fax has reached a final state. Use this to prove the workflow finished.

  • get_fax_statusFree

    Current delivery state of a fax: awaiting_payment, paid, submitted, sending, delivered, or failed. Failed faxes include a reason you can act on.

  • quote_faxFree

    Price a fax before committing to anything. Validates the destination and the document, counts pages, and returns an exact total plus a payment link. Free, and sends nothing. Always call this before send_fax.

  • send_faxwrite actionFree

    Returns the authorization instructions for sending a previously quoted fax. THIS ACTION COSTS MONEY AND CANNOT BE UNDONE: paying the returned link transmits a real document to a real fax machine. This tool itself does not charge you — it returns the exact price and a payment link, and the fax is only sent once you deliberately pay that link. Confirm the cost is acceptable before paying.

Public scan report

scanner v0.1.9 · 2026-09-20 · same rubric, same numbers if you re-run it

1 high1 low
  • –Code scanremote-only server, no package to scann/a
  • Live reliabilityremote reachable in 1344ms20/20
  • Tool poisoning4 tool descriptions checked15/15
  • Auth qualityopen endpoint exposes 1 write-action tools with no auth3/15
  • Maintenanceno repository listed3/15
  • Maintainer identityverified namespace with website, no repo4/10

Findings (2)

  • highWrite-action tools reachable without authenticationauth.open-write
  • lowNo source repository listedmaint.no-repo
Overall 60/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

Install directly

claude mcp add --transport http ohfax https://app.ohfax.com/mcp
Add to Cursor

Oh Fax: common questions

Is Oh Fax MCP server safe?
With care: it is graded C, so read the findings first (60/100). Read the Oh Fax safety report
How do I install Oh Fax?
It runs remotely at app.ohfax.com. Add it to Claude Code, Claude Desktop or Cursor with the snippets above, or call it through the mcp.market gateway without installing anything.
Does Oh Fax need an API key?
Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is Oh Fax maintained?
The latest release is v0.1.0.
Is Oh Fax up?
100% of our last 2 checks got an answer. We check remote servers about four times a day.

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