SingleFax

Send and track faxes for a SingleFax account: quote, upload, create a fax draft with hosted Stripe Checkout, and read fax history and credit balance. AP2 credit-pack purchases use signed mandates, separate account-owner passkey approval and a scoped Stripe Shared Payment Token. Uses the MCP OAuth server with explicit scopes. Not for PHI.

Skills

• 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.
  faxpricingread-only
• Upload a document
  Get a one-time upload link for a document too large to inline (about 20 KB or more). Returns uploadPageUrl (a person drops the file in a browser, no login), uploadUrl (HTTP PUT of the raw bytes) and uploadToken. Call again with { uploadToken } to check stored. Send the original Word, Excel, PDF or image; do not convert to PDF first.
  faxupload
• Create a fax draft with a checkout link
  Create a fax to one destination from an uploadToken (or base64 for a file under about 20 KB). Over A2A this never spends account credit or plan pages: it returns status awaiting_payment with a Stripe Checkout link (checkoutUrl) and an orderId. The fax is sent only after a person pays at that link. Task state is input-required until then; poll with GetTask.
  faxsendcheckout
• 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 sending a document; use create_fax_draft.
  checkoutnumberscredits
• Fax status
  Read fulfillmentStatus and paymentStatus of one outbound fax order this account owns. Argument: id (the orderId UUID from create_fax_draft). Read-only.
  faxstatusread-only
• List sent faxes
  List this account's outbound fax orders, newest first (id, destination, fulfillmentStatus, paymentStatus). Optional limit (default 20, max 50) and offset. Read-only.
  faxhistoryread-only
• List received faxes
  List faxes received on this account's numbers (envelope and AI summary state). Optional cursor and limit (max 50). HIPAA Secure and held faxes return the envelope only. Read-only.
  faxinboxread-only
• Read a received fax
  Read one received fax: extracted fields and a bounded transcript slice for released non-HIPAA faxes. Arguments: id, optional offset. HIPAA Secure content stays on the website. Read-only.
  faxinboxread-only
• Credit balance
  Read the prepaid credit balance (availableCents, reservedCents). Read-only.
  creditsread-only
• ap2 create cart
  ap2_create_cart: human-present AP2 v0.1 credit-pack purchase. Requires the AP2 extension and credits:checkout. Signed carts, passkey-bound approval and Stripe Shared Payment Tokens. See /ap2.md for the mandate schemas, arguments and approval flow.
  ap2creditspayments
• ap2 prepare payment
  ap2_prepare_payment: human-present AP2 v0.1 credit-pack purchase. Requires the AP2 extension and credits:checkout. Signed carts, passkey-bound approval and Stripe Shared Payment Tokens. See /ap2.md for the mandate schemas, arguments and approval flow.
  ap2creditspayments
• ap2 complete payment
  ap2_complete_payment: human-present AP2 v0.1 credit-pack purchase. Requires the AP2 extension and credits:checkout. Signed carts, passkey-bound approval and Stripe Shared Payment Tokens. See /ap2.md for the mandate schemas, arguments and approval flow.
  ap2creditspayments
• ap2 get cart
  ap2_get_cart: human-present AP2 v0.1 credit-pack purchase. Requires the AP2 extension and credits:checkout. Signed carts, passkey-bound approval and Stripe Shared Payment Tokens. See /ap2.md for the mandate schemas, arguments and approval flow.
  ap2creditspayments
• ap2 cancel cart
  ap2_cancel_cart: human-present AP2 v0.1 credit-pack purchase. Requires the AP2 extension and credits:checkout. Signed carts, passkey-bound approval and Stripe Shared Payment Tokens. See /ap2.md for the mandate schemas, arguments and approval flow.
  ap2creditspayments

How to call

https://singlefax.com/a2a

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