> ## Documentation Index > Fetch the complete documentation index at: https://cut.pro/docs/llms.txt > Use this file to discover all available pages before exploring further. # Start an upload > Returns a presigned URL plus the generated `video_id` for uploading your own video file directly to storage. PUT the bytes to `upload_url` with the same `Content-Type` you declared here, then call `POST /videos/upload/complete` to register the upload and get the credit cost. Limits: max 5 GB, extensions `.mp4`, `.mov`, `.webm`, `.mkv`. The presigned URL expires in 1 hour. ## OpenAPI ````yaml https://api.cut.pro/api/v1/openapi.json post /videos/upload openapi: 3.0.3 info: title: CutPro API version: 1.0.0 description: >- The CutPro API lets you automate AI-powered video clipping and rendering programmatically. ## Typical workflow 1. **Analyze** a public video URL to preview metadata and credit cost — no charge (`POST /clips/info`) 2. **Submit** the video for AI clipping — credits are deducted immediately (`POST /clips`) 3. **Poll** the submission until `status` is `completed` or `failed` (`GET /clips/{videoId}/submissions/{submissionId}`) 4. **Fetch** the AI-generated highlight clips (`GET /clips/{videoId}/submissions/{submissionId}/clips`) 5. **Optionally** apply one of your templates in bulk (`POST /clips/{videoId}/submissions/{submissionId}/apply_template`) 6. **Render** each clip to a final MP4 (`POST /clips/{videoId}/submissions/{submissionId}/clips/{clipId}/render`) 7. **Poll** the render until `status` is `completed` (`GET /renders/{renderId}`) 8. **Download** the rendered video (`GET /renders/{renderId}/download`) ## Authentication Pass your API key on every request via the `X-Api-Key` header or as `Authorization: Bearer `. You can generate API keys from your account settings at [cut.pro](https://cut.pro). ## Workspaces An API key is bound to one or more workspaces (Cloudflare-style scoped tokens). - **Single-workspace key**: every request operates on that workspace automatically. No header needed. - **Multi-workspace key**: pass `X-Workspace-Id: ` on every request to pick which workspace the call hits. Without the header, you get `400 MISSING_WORKSPACE_ID` with the list of allowed workspace ids in the response. Call `GET /workspace` to inspect the workspace the current request resolved to, plus its plan and role. ## Credits Credits are consumed when a submission is created. Check the workspace balance at `GET /balance`. Use `POST /clips/info` to see the exact cost before committing. servers: - url: https://api.cut.pro/api/v1 security: [] tags: - name: Workspace description: >- The workspace this request resolved to. Single-workspace keys always resolve to their bound workspace. Multi-workspace keys resolve via the `X-Workspace-Id` header — credits, submissions, clips and renders belong to whichever workspace the header selects on each request. - name: Videos description: >- Your clipping library — the source videos you have submitted for AI clipping. - name: Submissions description: >- Clipping jobs — the full lifecycle from pre-flight analysis through AI processing to completion. Each submission is tied to a video and produces a set of generated clips when it completes. - name: Clips description: >- AI-generated highlight clips produced by a completed submission. Each clip includes timestamps, a relevance score, and signed URLs for streaming and downloading. Clips can have a template applied and then be rendered to a final MP4. - name: Renders description: >- Video render jobs. After optionally applying a template to a clip, start a render to produce a final MP4. Poll the render until completed, then download the file. - name: Posts description: >- Multi-platform publishing. Create a post that references one or more edited clips plus the social connections to publish to, then poll it through `pending → processing → completed`. Failed items can be retried or removed without disturbing siblings that already published. - name: Templates description: >- Video editing templates that apply visual effects, captions, cropping, and other styles to clips in bulk. List your templates to find an ID to pass to `apply_template`. - name: Balance description: >- Credit balance and ledger of the workspace this API key represents. Credits are consumed when you create a submission. For full workspace metadata (plan, seats, role, member count) see `GET /workspace`. - name: Connections description: >- Social media accounts connected to this workspace — the IDs you pass as `connection_id` when creating a post. To connect a new account, sign in at [cut.pro](https://cut.pro) and use the in-app OAuth flow; connection lifecycle is not exposed via API. paths: /videos/upload: post: tags: - Videos summary: Start an upload description: >- Returns a presigned URL plus the generated `video_id` for uploading your own video file directly to storage. PUT the bytes to `upload_url` with the same `Content-Type` you declared here, then call `POST /videos/upload/complete` to register the upload and get the credit cost. Limits: max 5 GB, extensions `.mp4`, `.mov`, `.webm`, `.mkv`. The presigned URL expires in 1 hour. operationId: createVideoUpload requestBody: required: true content: application/json: schema: type: object required: - file_name - file_size properties: file_name: description: >- Original file name. Used to detect the extension and as a fallback title. type: string file_size: description: Size of the file in bytes. Must be <= 5 GB. type: number content_type: description: >- MIME type — defaults to `video/mp4`. Must match the bytes you PUT. type: string application/x-www-form-urlencoded: schema: type: object required: - file_name - file_size properties: file_name: description: >- Original file name. Used to detect the extension and as a fallback title. type: string file_size: description: Size of the file in bytes. Must be <= 5 GB. type: number content_type: description: >- MIME type — defaults to `video/mp4`. Must match the bytes you PUT. type: string multipart/form-data: schema: type: object required: - file_name - file_size properties: file_name: description: >- Original file name. Used to detect the extension and as a fallback title. type: string file_size: description: Size of the file in bytes. Must be <= 5 GB. type: number content_type: description: >- MIME type — defaults to `video/mp4`. Must match the bytes you PUT. type: string responses: '200': description: Response for status 200 content: application/json: schema: type: object required: - video_id - upload_url - expires_in properties: video_id: description: >- Generated video ID. Pass it to `POST /videos/upload/complete` after the PUT. type: string upload_url: description: Presigned PUT URL — upload the raw bytes here. type: string expires_in: description: Seconds until `upload_url` expires. type: number '400': description: Response for status 400 content: application/json: schema: type: object required: - code properties: code: type: string enum: - INVALID_FILE_TYPE - FILE_TOO_LARGE allowed_extensions: type: array items: type: string max_size: type: number '500': description: Response for status 500 content: application/json: schema: type: object required: - code properties: code: type: string enum: - PRESIGN_FAILED security: - apiKey: [] components: securitySchemes: apiKey: type: apiKey in: header name: X-Api-Key ````