Skip to main content
GET
Get Environment Balance

Authorizations

Authorization
string
header
required

API key as Bearer token. Use an account key (mfx_acct_...) for /account/* endpoints, and an environment key (mfx_test_... for sandbox, mfx_live_... for live) for /environment/*, /faxes, /webhooks, and /events.

Response

BalanceResource

type
enum<string>
required

Balance type.

Available options:
live,
sandbox
Example:

"sandbox"

available
integer
required

Credits available for new faxes, in cents.

Example:

4550

held
integer
required

Credits held for in-flight faxes, in cents.

Example:

450

auto_top_up
object
required
Last modified on May 21, 2026