---
title: "Redeem passkey bridge sign in"
method: POST
path: "/auth/passkey-bridge/{ceremony_id}/redeem"
tags: ["Auth"]
---

# Redeem passkey bridge sign in

`POST /auth/passkey-bridge/{ceremony_id}/redeem`

Redeem a finished sign in or two-factor passkey bridge ceremony once. Requires the nonce kept by the starting page and the completion code handed back when the ceremony finished.

## Path parameters

- `ceremony_id` string, required — Identifier of the passkey ceremony

## Request body

- PasskeyBridgeRedeemRequest
  - `nonce` string, required — Nonce whose SHA-256 digest was sent when the ceremony started
  - `completion_code` string, required — Code handed back when the ceremony finished

## Response `200`

Success

- union
  - CancelledPasskeyBridgeLoginRedeemResponse
    - `status` 'cancelled', required — The ceremony was cancelled
  - CompletedPasskeyBridgeLoginRedeemResponse
    - `status` 'completed', required — The ceremony finished
    - `token` string, required — Authentication token for API requests
    - `user_id` string, snowflake, required
    - `user` UserPartialResponse, required
      - `id` string, snowflake, required
      - `username` string, required — The username of the user, not unique across the platform
      - `discriminator` string, required — The four-digit discriminator tag of the user
      - `global_name` string, nullable, required — The display name of the user, if set
      - `avatar` string, nullable, required — The hash of the user avatar image
      - `avatar_color` integer, required
      - `bot` boolean — Whether the user is a bot account
      - `system` boolean — Whether the user is an official system user
      - `flags` integer, required — The public flags on the user account
      - `mention_flags` 0 | 1 | 2 — Reply mention preference

## Other responses

- `400` — Bad Request - The request was malformed or contained invalid data
- `429` — Too Many Requests - You are being rate limited
- `500` — Internal Server Error - An unexpected error occurred

## Changes

> 21 revisions in range; 2 not diffed.

- **2026-09-26** `3d3fd6ec1785` — 1 info
  - endpoint added

[Change history](https://skmtc.dev/fluxer/apis/fluxer-api/changes/auth/passkey-bridge/:ceremony_id/redeem/post.md)

---

[API](https://skmtc.dev/fluxer/apis/fluxer-api.md) · [All operations](https://skmtc.dev/fluxer/apis/fluxer-api/llms.txt) · [OpenAPI document](https://skmtc.dev/fluxer/apis/fluxer-api/revisions/3d3fd6ec1785?raw)