Oh Fax vs FaxZero: price, account, and agent support
An honest comparison of Oh Fax and FaxZero for sending a fax in the US or Canada, with prices checked Oct 24, 2026 on FaxZero's own site.
Oh Fax: $1.00 per fax by card for up to 25 pages ($0.02 per page after that, 30-page cap), or $0.02 per page from a prepaid balance or USDC. No subscription, no fax number, and no account needed for card or USDC payments.
FaxZero pricing
We compare FaxZero's paid premium fax: $3.29 per fax for up to 25 pages to the US or Canada, with no branding and no daily limit (FaxZero FAQ, checked Oct 24, 2026).
Price per fax (US/Canada, outbound)
| Pages | FaxZero | Oh Fax |
|---|---|---|
| 1 page | $3.29 (premium) | $1.00 card / $0.02 balance or USDC |
| 3 pages | $3.29 (premium) | $1.00 card / $0.06 balance or USDC |
| 10 pages | $3.29 (premium) | $1.00 card / $0.20 balance or USDC |
Oh Fax prices come from our pricing page.
At a glance
| FaxZero | Oh Fax | |
|---|---|---|
| Account required | No account; an email address is required. | No for card or USDC payments. An API key with a prepaid balance is optional. |
| API | FaxZero's FAQ points to an API at a sister service, edwyna.com. We did not check that service's pricing. | REST API at app.ohfax.com/api/v1 |
| AI agent / MCP | None published. | Remote MCP at https://app.ohfax.com/mcp. Paid MPP requests need no account. |
| Coverage | See FaxZero | US and Canada only, up to 30 pages per fax. Outbound only. |
When FaxZero is better
- You need to send internationally. FaxZero sends outside the US and Canada, and Oh Fax does not.
- You want a fax web form for people and no agent or API.
When Oh Fax is better
- You want an AI agent (Claude, ChatGPT, Cursor, Codex) to send the fax without signing up or keeping a subscription.
- You send faxes occasionally and want to pay per fax.
- You want an exact quote before you pay, and an automatic refund if the fax can't be delivered.
Switch in a minute
Add https://app.ohfax.com/mcp to your agent as an MCP server, or open ohfax.com and upload a PDF. See the MCP setup guide.
Sources
- FaxZero FAQ (checked Oct 24, 2026)
The competitor prices above are taken from each competitor's own published pages. Check them before you rely on them, because they can change.