Send fax from your application
Trigger outbound fax jobs directly from your product or internal tools.
Fax APIs that respect your time.
Add faxing to your app, portal, or workflow without becoming a fax company yourself. Faximus gives developers APIs, webhooks, delivery tracking, inbound fax handling, and operational visibility.
Guidance for everyday fax work
Simple first steps, deeper detail when your team needs it.
Send fax from your application
Receive fax events
Track status
Handle documents securely
Build for supportability
Everything needed to build fax into the workflow.
Use Faximus to add modern faxing without managing transmission behavior, document handling, or delivery visibility from scratch.
Your app
Faximus API
Recipient
Webhook event
Audit recorded
POST /v1/fax-jobs
Authorization: Bearer fax_key_example
{
"destinationNumber": "+12025550123",
"documents": [{ "documentId": "document-uuid" }],
"correlationId": "customer-123"
}Start
Submit a fax job
Use the guided workflow and copyable examples for the fastest first API call.
AuthCreate API keys
Review customer-session and bearer-token authentication boundaries.
Email FaxUse faxim.us routing
Configure verified source addresses for email-to-fax and fax-to-email flows.
WebhooksSubscribe to delivery events
Track queued, retrying, delivered, failed, and confirmed delivery states.
OpenAPIDownload the contract
Generate clients from the published production or non-production schema.
Developer value props
Receive fax events
Use webhooks to route inbound fax traffic into your workflows.
Track status
Give users and support teams visibility into delivery outcomes.
Handle documents securely
Support sensitive document workflows with security-minded handling and auditability.
Build for supportability
Help support and operations teams understand what happened when users ask.
Your app should not need a fax department.
Use Faximus to add modern faxing while keeping support and operations in the loop.