API Reference

Complete reference for the Call0 REST API. Manage agents, calls, bookings, and more.

Authentication

All requests require an Authorization header with your API key.

curl -H "Authorization: Bearer <your-api-key>" \
  https://call0.de/api/v1/agents

Create API keys in your Developer Portal.

Base URL

https://call0.de/api/v1

Agents

GET
/api/v1/agents

List all agents

POST
/api/v1/agents

Create an agent

Requires write scope.

Request body

namedescriptionsystem_promptgreetinglanguagevoice_providervoice_idagent_type

Calls

GET
/api/v1/calls

List call logs

Query parameters

limit (max 100)offsetagent_id

Bookings

GET
/api/v1/bookings

List bookings

Query parameters

limit (max 100)offsetstatus

Customers

GET
/api/v1/customers

List customers

Query parameters

limit (max 100)offset

Phone Numbers

GET
/api/v1/phone-numbers

List phone numbers

Analytics

GET
/api/v1/analytics

Get analytics summary

Query parameters

days (7 | 14 | 30 | 90)

Quotes

GET
/api/v1/quotes

List quotes

Waitlist

GET
/api/v1/waitlist

List waitlist entries

Feedback

GET
/api/v1/feedback

List call feedback

Call0 API v1 · Documentation · Home