---
title: "Create exchange token"
method: POST
path: "/token-exchange"
tags: ["Token Exchange"]
---

# Create exchange token

`POST /token-exchange`

Creates a short-lived (60 s) HMAC-SHA256-signed token. The Base64URL-encoded payload contains: userId, merchantId, accountSlug, iat (issued-at ms), exp (expiry ms), and nonce. Consuming applications that share the signing secret can verify the signature and trust the payload contents.

## Response `200`

OK

- ExchangeTokenResponseDTO
  - `token` string, required — Short-lived (60 s) HMAC-SHA256-signed exchange token. The Base64URL-encoded payload contains: userId, merchantId, accountSlug, iat, exp, and nonce.

## Other responses

- `202` — The merchant is entitled but its environment is not provisioned yet. Provisioning has been kicked off (exactly once) and is in progress; retry the request — it succeeds once the environment is ready. Returned only for identity-token (dashboard) requests bound to a merchant, not for secret-key API calls; any such endpoint can return it while provisioning is underway.
- `401` — No API key was supplied, or the key is not valid. `type` is `authentication_error`.
- `403` — The API key is valid but lacks the permission this operation requires. `type` is `permission_error`.
- `409` — `type` is `conflict_error`. The supplied `X-Idempotency-Key` was already used with a different request body (`code` is `idempotency_conflict`, and retrying will not help), or the resource is being modified by another in-flight request (`code` is `resource_locked`, and retrying with backoff will).
- `429` — Too many requests. The rate limit is applied per client across all operations. `type` is `rate_limit_error`.
- `500` — The request could not be completed because of an unexpected error. `type` is `api_error`.
- `504` — The request exceeded the processing time limit and was abandoned. `type` is `api_error` and `code` is `timeout` — unlike a plain 500 the request may still have taken effect, so retry with the same idempotency key rather than blindly.

---

[API](https://skmtc.dev/odus/apis/odus-orchestration-api.md) · [All operations](https://skmtc.dev/odus/apis/odus-orchestration-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/odus/odus-orchestration-api/revisions/d5fdcba31576/schema)