---
title: "Authenticate Compatibility"
method: POST
path: "/authenticate/compatibility"
---

# Authenticate Compatibility

`POST /authenticate/compatibility`

Exchange an explicitly marked client-owned migration transaction.

## Request body

- CompatibilityAuthenticateRequest — Explicit migration-only exchange for a client-owned code flow.
  - `code` string, required
  - `code_verifier` string, required
  - `connection` string, required
  - `issuer` string, required
  - `nonce` string, required
  - `organization` string, required
  - `redirect_uri` string, required
  - `state` string, required

## Response `200`

Successful Response

- AuthenticateResponse — Response after successful authentication.
  - `success` boolean, required
  - `access_token` string, nullable, required

## Other responses

- `422` — Validation Error

---

[API](https://skmtc.net/traversal/apis/fastapi.md) · [All operations](https://skmtc.net/traversal/apis/fastapi/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/traversal/fastapi/revisions/2134ebffd1ef/schema)