Oh Fax

com.ohfaxPublished by ohfax.comOfficial publisherv0.1.0Updated Oct 24, 2026

Outbound US/CA fax for agents: quote PDF, pay via MPP, get delivery receipt.

VerifiedStreamable HTTPWeb executableCommunication & CollaborationBusiness & Commerce

Overview

AI-generated overview

Remote MCP server that lets an assistant price, send and track outbound US/Canada faxes, returning a payment link and a verifiable delivery receipt.

What you can do
Quote a fax: validate the destination and document, count pages, and get an exact total with a payment link, free and without sending anything. Send a quoted fax: get authorization instructions and the price with a payment link; paying transmits the document. Check delivery state: awaiting payment, paid, submitted, sending, delivered or failed, with a reason for failures. Retrieve a verifiable delivery receipt once the fax reaches a final state.
When to use it
Use it when an assistant needs to send a real document to a US or Canada fax number as part of a workflow, and you want the cost quoted before committing and proof of delivery afterwards.
Requirements
A remote streamable HTTP endpoint at app.ohfax.com; no package, environment variables or headers are declared. Sending requires paying the payment link returned by the quote and send tools.
Before you install
Sending a fax costs money and cannot be undone: paying the returned link transmits a real document to a real fax machine. Always quote first. The document and destination number go to a third-party fax service. Receipts are only available after a final state.

Installation

In SourceWeft

  1. Open Oh Fax in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/com.ohfax%2Fohfax/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "oh-fax": {
      "type": "http",
      "url": "https://app.ohfax.com/mcp"
    }
  }
}

Tools

4

quote_fax

Quote a fax

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.

Parameterstorequireddocument_urldocument_base64

send_fax

Send a fax (costs money)

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.

Parametersquote_idrequired

get_fax_status

Check fax status

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

Parametersfax_idrequired

get_fax_receipt

Get fax receipt

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

Parametersfax_idrequired

Version history

1
  1. v0.1.0LatestSep 21, 2026

Score

83% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listedRequired15 pts
  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts

    Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.

  • LicenseNot applicable

    A hosted service is used under its provider's terms, so no license is expected here. This check is left out of the percentage.