# API v0 is deprecated

Quo API (formerly OpenPhone) deprecated /v0/* without giving a shutdown date yet.

- API: Quo API (formerly OpenPhone) (api.quo.com)
- Kind: Version retirement
- Announced: October 21, 2024
- Takes effect: no date given yet
- Calls after that day: fail
- Calls it hits: `/v0/*`
- Source: [Announcement](https://www.quo.com/docs/mdx/api-reference/changelog)
- Page: https://www.okapi.bot/providers/quo-api-formerly-openphone/breaking-changes/api-v0-is-deprecated/

## What to use instead

Call the same resources under /v1 (for example GET /v1/calls, POST /v1/messages).

## Quo API (formerly OpenPhone)'s words

> /v0 endpoints have been deprecated. Please use /v1 instead.