Best fax APIs for developers and automated workflows
FaxScout independently compares online fax services, pricing, security, integrations and business fit to help you choose with confidence.
A fax API is a different buying decision from an ordinary online fax subscription. Developers need authentication, delivery webhooks, auditability, throughput, error handling and predictable production pricing—not just a dashboard.
FaxScout verdict
iFax
Strong low-volume healthcare and HIPAA-oriented option.
Basic $12.49/mo (200 pages); Plus $24.99/mo (500 pages)
- HIPAA-focused product positioning
- BAA support
- Cross-platform apps
- API and healthcare integrations
Avoid if: Basic is send-focused; buyers who need receiving/HIPAA should evaluate Plus or higher.
What matters for this decision
Side-by-side shortlist
| Provider | Starting price | Allowance | HIPAA / BAA | Number | Porting | Email fax | API | Score |
|---|---|---|---|---|---|---|---|---|
| iFaxStrong low-volume healthcare and HIPAA-oriented option | Basic $12.49/mo (200 pages); Plus $24.99/mo (500 pages) | 200 (combined) | Plus+ / Yes | Plus+ | Yes | Yes | Yes | 8.9/10 |
| Fax.PlusBest balanced choice for many small-business and team workflows | From $6.99/mo; Business $27.99/mo; Enterprise $79.99/mo | 200 (combined) | Enterprise only / Yes | Yes | Premium+ | Yes | Enterprise | 9.1/10 |
| eFaxEstablished brand with broad consumer, business and regulated-industry options | Plus $18.99/mo monthly; Pro $24.99/mo; Protect from $49.99/mo monthly | 340 (split) | Protect / eligible business offerings / Yes | Yes | Yes | Yes | Corporate | 8.5/10 |
Published plan facts verified August 19, 2026. “Verify” means the provider does not expose a sufficiently clear public answer for FaxScout to state it as fact.
How FaxScout would make the decision
Start with non-negotiables: BAA eligibility, monthly volume, existing-number continuity, team size and API/integration requirements. Then compare total expected cost. Cosmetic features are tiebreakers, not reasons to ignore a major constraint.
We use primary provider documentation for plan facts and label every untested performance dimension. See who creates FaxScout research →
Frequently asked questions
Does Fax.Plus include an API on every plan?
No. Fax.Plus currently lists its fax API as an Enterprise feature.
Does iFax offer a healthcare fax API?
Yes. iFax currently markets a HIPAA-compliant fax API with BAA support for API customers.
Sources & verification
Material plan facts were checked against primary provider documentation at the verification date shown above.
- iFax — official documentation
- iFax — official documentation
- Fax.Plus — official documentation
- eFax — official documentation
- eFax — official documentation