Events Authentication

Events APIs use HTTP Basic Authentication. Include this header in every request:

Authorization: Basic <base64(api_key:)>

The API key goes in the username field of HTTP Basic Auth. The password is always empty — note the trailing colon before Base64 encoding.

Required Header

Authorization: Basic followed by Base64 of api_key: (API key + colon, empty password).

Where to find your API key

Dashboard path: Workspace Settings → API Keys
Create or manage keys in the Zixflow dashboard for your workspace.

Encoding example

# API key: ws_abc123
echo -n "ws_abc123:" | base64
# → d3NfYWJjMTIzOg==

Example request

curl -X POST "https://api-events.zixflow.com/v1/track" \
  -H "Authorization: Basic d3NfYWJjMTIzOg==" \
  -H "Content-Type: application/json" \
  -d '{"userId": "user_123", "event": "Button Clicked"}'

Auth error responses

HTTP Status	Reason
`401 Unauthorized`	Missing, invalid, or unrecognised API key
`503 Service Unavailable`	Auth cache temporarily unavailable

See Events Errors for the full error response shape.

Do not use messaging ingest headers (x-api-key, x-workspace-id) with Events APIs. Those apply only to api-ai.zixflow.com.

Events Introduction Context Object

Zixflow AI

Sendflow

Events

WhatsApp

RCS

SMS

Email

Delivery Report

Required Header

Where to find your API key

Encoding example

Example request

Auth error responses

​Required Header

​Where to find your API key

​Encoding example

​Example request

​Auth error responses

Required Header

Where to find your API key

Encoding example

Example request

Auth error responses