> ## Documentation Index > Fetch the complete documentation index at: https://docs.eversince.ai/llms.txt > Use this file to discover all available pages before exploring further. # compose motion > Place a motion graphic on its own visual track over the stack, from Remotion JSX or from a template, or rewrite the graphic on clip_id in place, keeping its lane, timing and settings. Code: a component named DynamicAnimation, plain JSX, no imports, against the fixed runtime scope and CONTROLS convention skill-motion-graphics lists (manage_skills get), animated from useCurrentFrame (rendering is frame-deterministic). template places a ready graphic or one saved in this workspace; save_as keeps what this call made under a name. The response says what it made and what compiles but is wrong. No frame is drawn: inspect_timeline shows the result. Free. ## OpenAPI ````yaml /openapi.json post /tools/compose_motion openapi: 3.1.0 info: title: Eversince API version: '1' description: >- Every Eversince tool as one POST call, plus the routes beside them: the tool list, account and keys, uploads, webhooks and models. The prose is at https://docs.eversince.ai. servers: - url: https://eversince.ai/api/v1 security: - bearer: [] tags: - name: Discovery description: The tool list, the same on the MCP server, the REST API and the CLI. - name: Workspace description: Jobs, balances, settings, templates, skills and the overview. - name: Library description: >- Items, search, import, reading media, comments, boards, calendars, the brand kit and public links. - name: Timeline description: 'Video editing: timelines, clips, captions, sound, language and rendering.' - name: Canvas description: 'Still editing: canvases, slides, layers and rendering.' - name: Generation description: Image, video and audio generation, upscaling, cutouts and models. - name: Research description: 'What platforms publish: pulling and keeping posts.' - name: Account description: Balances, keys, workspaces and script sessions. - name: Uploads description: Files into the library by presigned upload or by URL. - name: Webhooks description: Job results posted to a URL as they complete. - name: Models description: Generation models and cost estimates. paths: /tools/compose_motion: post: tags: - Timeline summary: compose motion description: >- Place a motion graphic on its own visual track over the stack, from Remotion JSX or from a template, or rewrite the graphic on clip_id in place, keeping its lane, timing and settings. Code: a component named DynamicAnimation, plain JSX, no imports, against the fixed runtime scope and CONTROLS convention skill-motion-graphics lists (manage_skills get), animated from useCurrentFrame (rendering is frame-deterministic). template places a ready graphic or one saved in this workspace; save_as keeps what this call made under a name. The response says what it made and what compiles but is wrong. No frame is drawn: inspect_timeline shows the result. Free. operationId: compose_motion parameters: - $ref: '#/components/parameters/IdempotencyKey' - $ref: '#/components/parameters/WorkspaceId' requestBody: required: true content: application/json: schema: type: object properties: timeline_id: type: string description: The timeline id. source_code: description: >- Remotion JSX source (the server compiles it; never pass compiled code). Leave out when placing a template, or when only saving the graphic already on clip_id. type: string template: description: >- Place this instead of source_code: a graphic saved in this workspace (name or id), with its saved settings and length, or a ready graphic by the id get_templates returns. The code is then the clip's own. type: string maxLength: 120 values: description: >- Knob values by CONTROLS name, set on the clip with the code: words, colors, a picture knob's library ref. Over a template they change only what they name. type: object propertyNames: type: string additionalProperties: anyOf: - type: string - type: number - type: boolean save_as: description: >- Save the graphic this call leaves on the timeline under this name for the workspace, its code, settings and length together; an existing name is overwritten. With clip_id and nothing else, saves that clip as it is. type: string maxLength: 60 clip_id: description: >- Rewrite the graphic on this clip instead of adding another. It keeps its place, its length, its lane and its fades, and the knobs a user has turned stay turned. This is how a graphic is revised. type: string placement: description: >- Where a new clip lands: { from (frame, default 0), duration_frames (default the saved graphic's length, else three seconds) }, or from_seconds and duration_seconds. Each call adds its own overlay lane. Not with clip_id. type: object propertyNames: type: string additionalProperties: {} props: description: >- Only description is read, as the clip's label. Values live in the source; the ones worth changing later go in its CONTROLS list, set with values here or later with edit_timeline updateClip {values}. type: object propertyNames: type: string additionalProperties: {} context: description: 'Optional: one sentence shown to the user beside this action.' type: string maxLength: 600 required: - timeline_id responses: '200': description: >- Done, or a job started for work that runs longer (follow it with get_jobs). content: application/json: schema: type: object required: - ok - data - meta properties: ok: const: true data: type: object additionalProperties: true meta: type: object properties: request_id: type: string cost: $ref: '#/components/schemas/Cost' cloud_processing: $ref: '#/components/schemas/CloudProcessing' media: type: array items: type: object additionalProperties: true default: $ref: '#/components/responses/Error' components: parameters: IdempotencyKey: name: Idempotency-Key in: header required: false schema: type: string description: >- Retry a paid dispatch safely: the same key returns the job already dispatched instead of charging again. WorkspaceId: name: x-workspace-id in: header required: false schema: type: string description: The workspace this one call acts in, when it is not the key's own. schemas: Cost: type: object description: AI credits the call cost. additionalProperties: true CloudProcessing: type: object description: Cloud processing the call used, and what is left. properties: ran_on: const: cloud minutes: type: number queued_minutes: type: number left_minutes: type: number bought_minutes: type: number note: type: string Error: type: object required: - ok - error properties: ok: const: false error: type: object required: - code - message - retryable properties: code: type: string message: type: string description: What went wrong, in words to act on. retryable: type: boolean suggested_action: type: string description: The next step that works. cloud_processing: $ref: '#/components/schemas/CloudProcessing' responses: Error: description: The call was refused or failed. content: application/json: schema: $ref: '#/components/schemas/Error' securitySchemes: bearer: type: http scheme: bearer description: >- An API key (es_live_…) from Settings, under API keys, or an OAuth access token. ````