---
title: "GET /auth/tokens/github/codeChallenge"
method: GET
path: "/auth/tokens/github/codeChallenge"
tags: ["tokens"]
---

# GET /auth/tokens/github/codeChallenge

`GET /auth/tokens/github/codeChallenge`

Get a PKCE code challenge value and store the verifier.

## Response `200`

Get a PKCE code challenge value

- ClientPKCE
  - `hashedValue` string
  - `state` string

## Other responses

- `401` — Unauthorized
- `403` — Forbidden
- `409` — Conflict

## Changes

- **2026-06-03** `63efefdfd734` — 1 info
  - endpoint added
- **2025-05-05** `7a89c3c933f1` — 1 breaking
  - api path removed without deprecation

[Change history](https://skmtc.dev/dockstore/apis/dockstore-api/changes/auth/tokens/github/codeChallenge/get.md)

---

[API](https://skmtc.dev/dockstore/apis/dockstore-api.md) · [All operations](https://skmtc.dev/dockstore/apis/dockstore-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/dockstore/dockstore-api/revisions/9d82a4e96aa7/schema)