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Documentation Index

Fetch the complete documentation index at: https://mintfax.com/docs/llms.txt

Use this file to discover all available pages before exploring further.

Live is one of two environment types. Faxes sent in a live environment are delivered to real fax machines and deduct real credits. Sandbox and live use the same API. Three things differ in live: real charges, real recipients, and an activation gate. See Sandbox and live for the full comparison, and Account activation for the gate flow.

API keys

Live keys start with mfx_live_. They cannot authenticate against sandbox environments and vice versa. Generate them from the dashboard after the account is activated.

Multiple live environments

You can create as many live environments as you need: one per application, per client, per region. They share a single account-level live credit pool, so a top-up against one is available to all of them. Activation is account-level too. Once any first live purchase succeeds, every live environment under the account is immediately usable.
  • Account activation for the gate and the activated_at timestamp
  • Environments for routing and isolation
  • Credits for the account-pool model and hold/capture/release lifecycle
  • Go live for the production-readiness checklist
Last modified on May 13, 2026