Send fax
documentedCreate and queue a fax for sending (legacy v2).
POST faxesFaxesno implementation yet0 runsInput
to*
Recipient phone number (E.164)
+14141234567
content_url*
Content URL
https://example.com/file.pdf
header_text
Header text
My Fax
caller_id
Caller ID
+14141234567
callback_url
Callback URL
https://example.com/phaxio-callback
batch_delay
Batch delay (seconds)
0
batch_collision_avoidance
Batch collision avoidance
false
cancel_timeout
Cancel timeout (minutes)
15
order_id
Order ID tag
1234
test_fail
Test failure type
documentConversionError
Calls Phaxio as you (your API key is your account); keychains.dev holds the credentials.