> ## Documentation Index > Fetch the complete documentation index at: https://docs.budgetpixel.com/llms.txt > Use this file to discover all available pages before exploring further. # Upload input media > Upload an image, video, or audio file to use as input for a generation (e.g. the `image` param on an image-to-image or image-to-video request). Returns a short-lived `url` you pass as that media parameter. Files are ephemeral — stored privately and deleted ~24h after upload. Max 50 MB. You don't have to upload first: any media param also accepts a public image URL, a data URI, or raw base64 directly. Uploading is the convenient path when you have a local file and no public URL to point at. **Rate limit.** This endpoint is free (not metered), so it carries a dedicated cap of **60 uploads/min per account** (a rolling window), on top of the global per-key and per-IP request limits. Exceeding it returns `429` with a `Retry-After` header. ## OpenAPI ````yaml /openapi.yaml post /uploads openapi: 3.1.0 info: contact: email: support@budgetpixel.com name: BudgetPixel Support description: > The BudgetPixel developer API for programmatic image, video, music and sound-effect generation. Generation is **asynchronous**: you create a job, then poll its status until it reaches a terminal state (`succeeded` / `failed`). You are charged in credits only on success — never for failures, timeouts, or content blocked before generation. **Authentication.** All requests require an API key sent as a bearer token: Authorization: Bearer bpx_live_xxx Create and manage keys from your BudgetPixel account dashboard. The developer API is available on **every paid plan**. On the **Free** plan, API keys can call one endpoint: `GET /v1/stock/images`, the free stock image library search. **Pricing.** API usage is metered in credits at each model's published price (see `GET /v1/models`), and your plan's model discounts and active promotions apply to API charges exactly as they do on the web — `POST /v1/cost` quotes your discounted price. Pro and Ultra plans include a daily free-models allowance (a shared pool of free generations per day across qualified image models such as FLUX 2 Klein and Qwen-Image) that covers API requests too — the standard price applies once the day's pool is used. Other promotional free daily generations remain web/app-only. Failed generations are never charged. **Rate limits.** Requests are limited per minute: **600 requests/min per API key** and **1200 requests/min per source IP** (defaults; subject to tuning). Every response carries `X-RateLimit-Limit`, `X-RateLimit-Remaining`, and `X-RateLimit-Reset` (seconds until the window resets). Exceeding a limit returns HTTP `429` with a `Retry-After` header — wait that long before retrying. Rejected requests still count against the window, so a tight retry loop keeps you limited; back off instead. Generation jobs additionally have a per-plan concurrency cap (the same one as the web workshop), independent of these request limits. `POST /v1/uploads` also has a dedicated **60 uploads/min per account** cap (it's free/unmetered) on top of these limits. title: BudgetPixel API version: '2026-06-20' servers: - description: Production url: https://api.budgetpixel.com/v1 security: - ApiKeyAuth: [] tags: - description: Account and credit balance name: Account - description: Discover available models and pricing name: Models - description: Upload input media for image/video generation name: Uploads - description: Image job status name: Images - description: FLUX image models name: Black Forest Labs - description: SeeDream image models name: Bytedance - description: Video job status name: Videos - description: Kuaishou Kling video models name: Kling - description: SeeDance video models name: ByteDance (SeeDance) - description: Music and sound-effect job status name: Audios - description: Music generation models name: Music - description: Text-to-sound-effect models (priced per second) name: Sound Effects - description: Format conversion for images, video, and audio name: Conversions - description: Publish posts to your BudgetPixel feed and enter clan themes name: Social - description: Content moderation — NSFW rating and CSAM detection name: Moderation - description: Content classification — music genre detection name: Classification - description: >- Search the free stock image library — available on every plan, including Free name: Stock Images paths: /uploads: post: tags: - Uploads summary: Upload input media description: > Upload an image, video, or audio file to use as input for a generation (e.g. the `image` param on an image-to-image or image-to-video request). Returns a short-lived `url` you pass as that media parameter. Files are ephemeral — stored privately and deleted ~24h after upload. Max 50 MB. You don't have to upload first: any media param also accepts a public image URL, a data URI, or raw base64 directly. Uploading is the convenient path when you have a local file and no public URL to point at. **Rate limit.** This endpoint is free (not metered), so it carries a dedicated cap of **60 uploads/min per account** (a rolling window), on top of the global per-key and per-IP request limits. Exceeding it returns `429` with a `Retry-After` header. operationId: uploadMedia requestBody: content: multipart/form-data: schema: properties: file: description: >- The media file. Image (PNG/JPEG/WebP/GIF), video (MP4/WebM), or audio (MP3/WAV/OGG). format: binary type: string required: - file type: object required: true responses: '200': content: application/json: schema: $ref: '#/components/schemas/UploadResponse' description: Stored. Pass `url` as a media param on a generation request. '400': $ref: '#/components/responses/BadRequest' '401': $ref: '#/components/responses/Unauthorized' '403': $ref: '#/components/responses/Forbidden' '413': content: application/json: schema: $ref: '#/components/schemas/Error' description: File exceeds the size limit. '415': content: application/json: schema: $ref: '#/components/schemas/Error' description: Unsupported file type. '429': $ref: '#/components/responses/TooManyRequests' components: schemas: UploadResponse: description: >- A stored, ephemeral input file. Pass `url` as a media parameter on a generation request. properties: bytes: description: Stored file size in bytes. type: integer content_type: example: image/png type: string expires_in: description: Seconds the file is retained (~86400). type: integer url: description: Short-lived URL to use as a media input (valid ~24h). format: uri type: string type: object Error: properties: error: properties: code: description: Stable machine-readable code. example: model_not_available type: string message: type: string type: description: Error category. example: invalid_request_error type: string required: - type - code - message type: object required: - error type: object ModerationBlocked: description: >- Returned (with HTTP 400) when the input content moderation gate blocks a generation request. The block is a property of the request's prompt or input media — reword the prompt or change the input and retry. Branch on `restriction_reason`, which is stable and machine-readable. properties: error: description: Human-readable explanation of the block. type: string restriction_reason: description: Stable machine-readable block reason. enum: - input_csam - input_explicit_adult - input_upload_nudity - input_celebrity_likeness - strict_model_nsfw type: string required: - error - restriction_reason type: object responses: BadRequest: content: application/json: schema: oneOf: - $ref: '#/components/schemas/Error' - $ref: '#/components/schemas/ModerationBlocked' description: >- The request was malformed, referenced an unavailable model, or was blocked by input content moderation (moderation blocks carry a `restriction_reason` — see ModerationBlocked). Unauthorized: content: application/json: schema: $ref: '#/components/schemas/Error' description: Missing or invalid API key. Forbidden: content: application/json: schema: $ref: '#/components/schemas/Error' description: >- Authenticated but not permitted (plan gate, ownership, account restriction). Content-moderation blocks are 400, not 403. TooManyRequests: content: application/json: schema: $ref: '#/components/schemas/Error' description: Rate or queue limit reached. Retry after a short delay. securitySchemes: ApiKeyAuth: bearerFormat: bpx_live_* description: 'API key as a bearer token: Authorization: Bearer bpx_live_xxx' scheme: bearer type: http ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.