10 actions in 5 pieces of software · ranked by words, meaning and measured trust · 502 ms

1. 1SingleFaxverified and signedpassport

   agentrecord

   • Credit balance

     Read the prepaid credit balance (availableCents, reservedCents). Read-only. e.g. {"skill":"get_credits","arguments":{}}

   • Get a checkout link for a product

     Get a Stripe Checkout link for a catalog SKU: credit_pack, inbound_30day, monthly-basic, annual-basic, monthly-business, annual-business, lifetime-basic or lifetime-pro. Over A2A it always returns a checkout link and never spends existing credit. HIPAA, EIN and IRS products are website-only. Not for

   • Quote a fax

     Price a fax before sending. Arguments: to (destination fax number, E.164), pages (1-50, default 10) or base64 of a small original document with optional contentType. Read-only: never charges or sends. e.g. {"skill":"quote_fax","arguments":{"to":"+12025551234","pages":3}}

2. 2mcp-faxfound in code, not yet checkedno passport yet

   MCP serverohmeingott/mcp-fax

   • send_fax

     Send a fax to a German fax number. Accepts a base64-encoded PDF document or a URL to a PDF. The fax number must be in German format starting with +49.

   • check_fax_status

     Check the delivery status of a previously sent fax.

3. 3promptfaxverified and signedpassport

   MCP serverrecord

   • send_fax

     Queue a paid fax for transmission after payment is authorized and the user explicitly wants to send now.

   • get_quote

     Create a user-reviewable pay-per-use fax quote when you have a fax number and either an MCP session, a PromptFax documentId, or one or more HTTPS PDF URLs.

4. 4FaxSeal MCP Serverfound in code, not yet checkedno passport yet
   • get_credits

     Check the current FaxSeal credit balance for this API token.

5. 5Twilio - Faxverified and signedpassport

   APIrecord

   • ListFax

     Retrieve a list of all faxes.

   • FetchFax

     Fetch a specific fax.