mintfax
mintfax: A focused REST fax API for outbound delivery control, not inbound faxing. Ranked #19 of 26 in Fax APIs by our editors (7.4/10); pricing: Paid; best for outbound-only developers needing delivery controls.
At a glance
- Editor score7.4 / 10
- PricingPaid
- Best forOutbound-only developers needing delivery controls
- Free planNo
- Paid from$0.04/unit usage-based
- Inbound faxingNo
- Facts checked20 Sep 2026
Where it wins
- Signed webhooks, idempotency keys, and automatic retries
- OpenAPI 3.1 specification with deterministic sandbox testing
- Configurable retention, content deletion, and exportable audit logs
Where it doesn't
- Outbound-only; no receiving numbers or inbound faxing
- No free plan for production usage
- Prepaid per-page pricing requires volume forecasting
Our verdict on mintfax
mintfax is a REST/JSON fax API for software teams that need to send documents to fax destinations. Its feature set is aimed at SaaS, startup, and healthcare developers building outbound fax workflows into their products. The service provides submission through a REST API, delivery-status tracking, signed webhook events, idempotency keys, automatic retries for temporary delivery failures, and documented errors. It is a focused fit for teams that want delivery control in an API rather than a general-purpose fax workspace.
Pricing is prepaid per page and billed monthly. The Standard plan costs $0.06 per page and includes prepaid credits with all features included. At 100,000 or more pages, the published rate is $0.048 per page through an automatic volume rate. At 1,000,000 or more pages, the rate is $0.036 per page, also applied automatically. There is no free production plan, although the product includes a deterministic sandbox with simulated deliveries for development and integration work. This structure suits teams that can estimate page volume and want the same feature set across plans, while high-volume users receive lower per-page pricing.
The strongest technical case is its delivery and operational tooling: signed webhooks help verify events, idempotency keys help prevent duplicate submissions, and retries address temporary delivery failures. OpenAPI 3.1 documentation supports API-oriented integration, while configurable retention, content deletion, AES-256 storage encryption, audit logs, and dashboard-based BAA and DPA agreements support teams with defined data-handling requirements. mintfax is a good choice when outbound delivery visibility and controls matter more than a broad fax feature set. Teams that need receiving numbers or verified inbound faxing should choose a product that supports inbound workflows.
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mintfax pricing
All 3 mintfax plans and prices →
mintfax fact sheet
| Free plan | No |
|---|---|
| Paid from | $0.04/unit usage-based |
| Inbound faxing | No |
| Outbound faxing | Yes |
| Delivery tracking | Yes |
| Webhook events | Yes |
| API protocol | Rest |
| Included pages | Not verified |
| Deployment | Cloud |
| Platforms | Web |
| Compliance & security | HIPAA |
| Support | Email, Docs |
| Built for | Small business, Mid-market (editorial estimate) |
| Pricing | Paid (source) |
| Website | mintfax.com |
| Facts checked | 20 Sep 2026 |
Alternatives to mintfax
- Telnyx Fax APIA low per-page REST fax API with inbound, outbound, tracking, and webhook support.9.4
- PhaxioA feature-rich fax API for sending, receiving, tracking, and routing documents.9.2
- FaxxingA practical free-start fax API with inbound support, signed webhooks, and usage-based pricing.9.1
See all mintfax alternatives →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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