---
title: "Changes to Handles callbacks from SheerID's Zero Knowledge Proof technology"
method: POST
path: "/verification/sso/zkp"
---

# Changes to Handles callbacks from SheerID's Zero Knowledge Proof technology

`POST /verification/sso/zkp`

> Every recorded change to this operation, newest first.
> 13 revisions in range; 1 not diffed.

## Timeline

Changed in 3 of 13 revisions.

- **2026-10-28** `2373facbc1c2`: 1 info
- **2026-10-19** `bf4b86260e69`: 1 warning
- **2026-09-17** `1cf29eb46b99`: 1 breaking, 2 info

## Changes

- **2026-10-28** `2373facbc1c2`: 1 info
  - added the optional property `tryAgainUrl` to the response with the `429` status
- **2026-10-19** `bf4b86260e69`: 1 warning
  - added the new `inCountryVerification` enum value to the `currentStep` response property for the response status `429`
- **2026-09-17** `1cf29eb46b99`: 1 breaking, 2 info
  - removed the media type `text/html` for the response with the status `200`
  - added the media type `application/json` for the response with the status `200`
  - added the optional property `metadata` to the response with the `400` status

---

[Operation](https://skmtc.dev/sheerid/apis/sheerid-api/docs/verification/sso/zkp/post.md) - [API](https://skmtc.dev/sheerid/apis/sheerid-api.md) - [Page](https://skmtc.dev/sheerid/apis/sheerid-api/changes/verification/sso/zkp/post)