Openfax Cloud Fax API
The facts below are what the maker publishes about Openfax Cloud Fax API, checked and dated. Our editors have not written about it yet.
Plans and prices
From Openfax Cloud Fax API's own pricing page, checked 20 Sep 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Standard fax broadcast | $0.03 a month | US-48 and Canada pricing is listed at $0.03 per page · Per-page pricing is subject to 60-second transmission times; longer transmissions may be billed per minute at the same r |
| Mail merge services broadcast | $0.04 a month | US-48 and Canada pricing is listed at $0.04 per page · Per-page pricing is subject to 60-second transmission times; longer transmissions may be billed per minute at the same r |
| Fax broadcasting | $3, paid once | US, Canada and worldwide destinations · no monthly fees · per page; international destinations may use per-minute rates |
The facts
Each one read from Openfax Cloud Fax API's own pages, with the date it was checked.
What it does
- Account requirements
- Using the API requires an account, account number and API key obtained from the portal.checked 30 Sep 2026
- API purpose
- The Openfax Cloud Fax API provides developers access to global facsimile services.checked 30 Sep 2026
- Broadcast modes
- Standard broadcasts remove duplicate fax numbers, while mail merge personalizes each fax from list data.checked 30 Sep 2026
- Data handling
- Openfax states that it does not share customer data except when required by law.checked 30 Sep 2026
- Delivery integrations
- Received faxes can be delivered by email, AWS S3 cloud storage or webhook postback.checked 30 Sep 2026
- Developer credits
- Openfax offers free developer trial credits after registration when contacted.checked 30 Sep 2026
- Fax operations
- The API supports single faxes, fax broadcasts, mail-merge broadcasts, inbound fax numbers and fax reception.checked 30 Sep 2026
- Opt-out compliance
- The optional Fax Removal Service supplies a dedicated toll-free number for mass-fax opt-out requests.checked 30 Sep 2026
- PDF limit
- The API limits the Base64-encoded PDF input to 50MB.checked 30 Sep 2026
- Reporting
- Broadcast jobs provide an email summary and JobID_Success.csv and JobID_Failed.csv attachments.checked 30 Sep 2026
- Retries
- Single-fax delivery uses up to three redial attempts with a four-minute wait between attempts.checked 30 Sep 2026
- Scheduling
- Web fax broadcasts can be sent immediately or scheduled for a chosen date and time.checked 30 Sep 2026
- Spreadsheet limit
- Openfax does not support multiple worksheets in Excel fax-list files.checked 30 Sep 2026
- Support
- API support is offered by phone, chat, email, Slack invite and Skype invite.checked 30 Sep 2026
The company
- Founded
- 1999checked 28 Sep 2026
Money
- Free plan
- Nochecked 20 Sep 2026
- Free test fax
- Free proof-copy test faxing is available for broadcast fax orders.checked 30 Sep 2026
