---
title: "Mint a short-lived token for the signed upload lane"
method: POST
path: "/v1/uploads/token"
tags: ["media"]
---

# Mint a short-lived token for the signed upload lane

`POST /v1/uploads/token`

## Request

- Base URL: `https://api.cueframe.ai`
- URL: `https://api.cueframe.ai/v1/uploads/token`
- Auth: one of:
  - HTTP bearer
  - OAuth 2 (authorization code, authorization URL `https://api.cueframe.ai/api/auth/mcp/authorize`, token URL `https://api.cueframe.ai/api/auth/mcp/token`, scopes: `media:write`)
  - API key in header `PAYMENT-SIGNATURE`

Required permission: media:write

## Request body

- UploadTokenRequest
  - `projectId` string: Optional project to scope the token to; omitted = org library.

## Response `201`

Upload token minted (~30 min TTL).

- UploadTokenResponse: POST /uploads/token response: a short-lived token for the signed upload lane (the upload-signing worker's `uppy-auth-token` header). The org is derived from the session server-side and stamped into the token.
  - `token` string, required
  - `expiresAt` integer, required: Expiry, ms since epoch (~30 min TTL).

## Other responses

- `400`: Bad request — validation_error / invalid_cursor / invalid_query.
- `401`: Missing or invalid Authorization header.
- `402`: Payment required. Returned when the caller presents no API key on a priced operation: the body AND the `Payment-Required` header carry the x402 v2 challenge (accepted scheme, network, USDC asset, amount, payTo). Sign the EIP-3009 authorization and retry with a `PAYMENT-SIGNATURE` header. A KEYED caller sees this status instead when their plan lacks or has exhausted the feature (`billing_required`).
- `403`: Forbidden — permission insufficient.
- `404`: Resource not found.
- `422`: Unprocessable — invalid_composition / media_in_use / session_in_use / render_not_cancellable.
- `429`: Rate limited. Retry-After header present.
- `500`: Internal error.

---

[API](https://skmtc.dev/cueframe/apis/cueframe-api.md) · [All operations](https://skmtc.dev/cueframe/apis/cueframe-api/llms.txt) · [OpenAPI document](https://skmtc.dev/cueframe/apis/cueframe-api/revisions/8f9bfe362b4a?raw)