> ## Documentation Index > Fetch the complete documentation index at: https://docs.uselamina.ai/llms.txt > Use this file to discover all available pages before exploring further. # Generate Content Brief > Generate content briefs from a goal, enriched with brand context and trend signals. Returns multiple brief suggestions that can be fed directly into `POST /v1/content/create`. **Example workflow:** 1. Call this endpoint with a goal: "Increase Instagram engagement for our sneaker line" 2. Review the generated briefs (each is a self-contained content creation instruction) 3. Pass the best brief as the `brief` field to `POST /v1/content/create` Each generated brief incorporates: - Workspace brand DNA and voice attributes - Current trend signals for the target platform - Historical performance patterns Generate structured content briefs grounded in your brand context, trend signals, and performance data. Each brief includes a creative direction, suggested format, target platform, and recommended app. Use this as a planning step before content creation, or feed briefs directly into the create-content endpoint for fully automated production. Returns up to `count` briefs (default 3, max 10) per request. ## OpenAPI ````yaml POST /v1/content/brief openapi: 3.1.0 info: title: Lamina Apps API version: 1.0.0 description: > Professional creative content production for AI agents. Create brand-aligned images, videos, and designs from natural-language briefs using 30+ specialized AI pipelines. Unlike raw model APIs (DALL-E, Flux, Kling), Lamina automatically applies brand guidelines, selects the optimal multi-model pipeline, scores output quality, and delivers permanent CDN-hosted URLs with composability metadata for chaining. ## Authentication All endpoints require an API key passed via one of these headers: - `x-api-key: lma_your_key` (recommended) - `Authorization: Bearer lma_your_key` API keys are workspace-scoped. Create them in **Settings -> API Keys**. ## Quick Start (One-Call Path) `POST /v1/create` with `{ "brief": "product photo of sneakers", "sync": true }` — returns completed output inline with CDN URL. ## Quick Start (Advanced) 1. `GET /v1/apps` -- browse 30+ specialized creative apps 2. `GET /v1/apps/{appId}` -- inspect input parameters 3. `POST /v1/apps/{appId}/runs?webhook=` -- run with your inputs 4. Receive results via webhook, poll `GET /v1/runs/{runId}`, or stream via `GET /v1/runs/{runId}/stream` ## Rate Limits All `/v1/*` endpoints are currently limited to 100 requests per minute per IP. On `429`, read the `RateLimit-*` and `Retry-After` headers before retrying. ## How Inputs Work When running an app, provide inputs as a JSON object keyed by parameter **name** (from the app details response). - **text** parameters: send a string value (e.g. a prompt or description) - **options** parameters: send the **label** of the option (e.g. `"Caucasian"`), not an internal value - **url** parameters: send a publicly accessible URL to an image or video Every parameter is returned with `required: true`. Parameters with a `default` can safely be omitted -- the app will use the default value. ## Endpoint Groups | Group | Purpose | |-------|---------| | **Apps** | Discover and inspect available content creation apps | | **Runs** | Run workflows, track progress, and retrieve results | | **Assets** | Browse generated images, videos, and text from past executions | | **Intelligence** | Brand context, performance prediction, recommendations, and trends | | **Publishing** | Publish content to connected social channels | | **Content** | One-call agent operations: create, score, brief, batch | | **Account** | Credit balance and rate limit visibility | | **Templates** | Content creation templates and strategies | | **Webhooks** | Webhook signature verification | servers: - url: https://app.uselamina.ai description: Production security: - apiKey: [] tags: - name: Create description: Create content from briefs, run specific apps, and use templates - name: Discover description: Find and inspect available apps and their input schemas - name: Track description: Monitor execution progress, retrieve results, and browse generated assets - name: Intelligence description: >- Brand context, performance prediction, content recommendations, and trend signals - name: Distribute description: Publish content to social channels and transfer assets to CDN - name: Score description: Evaluate content quality, brand alignment, and engagement potential - name: Account description: Credit balance, rate limits, and health checks - name: Webhooks description: Webhook signature verification for secure callback handling paths: /v1/content/brief: post: tags: - Create summary: Generate Content Brief description: > Generate content briefs from a goal, enriched with brand context and trend signals. Returns multiple brief suggestions that can be fed directly into `POST /v1/content/create`. **Example workflow:** 1. Call this endpoint with a goal: "Increase Instagram engagement for our sneaker line" 2. Review the generated briefs (each is a self-contained content creation instruction) 3. Pass the best brief as the `brief` field to `POST /v1/content/create` Each generated brief incorporates: - Workspace brand DNA and voice attributes - Current trend signals for the target platform - Historical performance patterns operationId: createBrief requestBody: required: true content: application/json: schema: type: object properties: goal: type: string description: >- Goal or objective for the content (e.g. "Increase engagement for our sneaker line"). platform: type: string nullable: true description: Target platform to optimize briefs for. modality: type: string nullable: true description: Desired content modality (e.g. `image`, `video`). count: type: integer default: 3 maximum: 10 description: Number of brief variations to generate. brandProfileId: type: string format: uuid nullable: true description: Brand profile to incorporate into briefs. required: - goal example: goal: Increase Instagram engagement for our new sneaker collection platform: instagram modality: image count: 3 responses: '200': description: Generated content briefs content: application/json: schema: type: object properties: data: type: object description: >- Generated briefs. Structure varies based on the workspace's intelligence model. example: data: briefs: - brief: >- Create a lifestyle photo of sneakers on a skateboarder in an urban park, golden-hour lighting, warm tones, shot from low angle to emphasize the shoes platform: instagram modality: image reasoning: >- Lifestyle imagery is your top-performing pattern (+3.2x engagement). Low-angle urban shots align with current streetwear trends. - brief: >- Flat-lay composition of the full sneaker colorway lineup on a concrete surface with coffee and sunglasses props, overhead shot, minimalist styling platform: instagram modality: image reasoning: >- Product flat-lays with lifestyle props drive strong save-to-like ratios. Concrete texture matches brand's urban identity. - brief: >- Close-up macro shot of sneaker texture and stitching details, shallow depth of field, studio lighting with warm accent platform: instagram modality: image reasoning: >- Detail shots generate high comment engagement. Studio lighting with warm accents matches brand's visual identity. '400': description: Missing required goal content: application/json: schema: $ref: '#/components/schemas/Error' example: error: goal is required (string) '401': $ref: '#/components/responses/Unauthorized' '429': $ref: '#/components/responses/TooManyRequests' components: schemas: Error: type: object description: Standard error response required: - error properties: error: type: string description: Human-readable error message details: type: array items: type: string description: Additional validation error details (present on 400 responses) responses: Unauthorized: description: Missing or invalid API key content: application/json: schema: type: object properties: error: type: string example: error: Invalid API key TooManyRequests: description: >- Rate limit exceeded. All `/v1/*` endpoints are currently limited to 100 requests per minute per IP. headers: RateLimit-Policy: description: Active rate limit policy. schema: type: string example: 100;w=60 RateLimit-Limit: description: Max requests allowed in the current window. schema: type: integer example: 100 RateLimit-Remaining: description: Requests remaining in the current window. schema: type: integer example: 0 RateLimit-Reset: description: Seconds until the current window resets. schema: type: integer example: 60 Retry-After: description: Seconds to wait before retrying. schema: type: integer example: 60 content: text/plain: schema: type: string example: Too many requests from this IP, please try again in a minute securitySchemes: apiKey: type: apiKey in: header name: x-api-key description: 'Workspace API key. Prefix: `lma_`. Example: `lma_abc123...`' ````