---
title: "Changes to Respond to Authorization Challenge"
method: POST
path: "/v1/card_authorizations/{event_token}/challenge_response"
---

# Changes to Respond to Authorization Challenge

`POST /v1/card_authorizations/{event_token}/challenge_response`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 1 of 103 revisions.

- **2026-05-15** `161d70ef4fdf`: 1 info

## Changes

- **2026-05-15** `161d70ef4fdf`: 1 info
  - endpoint added

---

[Operation](https://skmtc.dev/lithic-com/apis/lithic-developer-api/docs/v1/card_authorizations/:event_token/challenge_response/post.md) - [API](https://skmtc.dev/lithic-com/apis/lithic-developer-api.md) - [Page](https://skmtc.dev/lithic-com/apis/lithic-developer-api/changes/v1/card_authorizations/:event_token/challenge_response/post)