Nixflex - AI Voice Platform for Building AI Phone Agents

Send call events to your own HTTPS endpoint after each call. Configured per phone number. A second webhook slot is also available for a second destination.

Set the webhook

string

required

The phone number in E.164 format, passed in the URL.

string

required

Your webhook endpoint. Must be an https URL.

curl -X PUT "https://api.nixflex.com/v1/integrations/webhook/number/+447446466847" \
  -H "Authorization: Bearer nxf_xxx:nxfs_xxx" \
  -H "Content-Type: application/json" \
  -d '{"url": "https://your-app.com/nixflex-webhook"}'

Second webhook

A second destination is available at the same shape under /integrations/webhook2/number/:phoneNumber.

Check / remove

curl -X GET "https://api.nixflex.com/v1/integrations/webhook/number/+447446466847" \
  -H "Authorization: Bearer nxf_xxx:nxfs_xxx"

curl -X DELETE "https://api.nixflex.com/v1/integrations/webhook/number/+447446466847" \
  -H "Authorization: Bearer nxf_xxx:nxfs_xxx"

Notes

The number must belong to your account. A number you do not own returns 404.
For the webhook payload details, see Webhooks.

API

Platform API

Webhook integration

Set the webhook

Second webhook

Check / remove

Notes

​Set the webhook

​Second webhook

​Check / remove

​Notes

Set the webhook

Second webhook

Check / remove

Notes