> ## Documentation Index
> Fetch the complete documentation index at: https://docs.kynva.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Multi-platform render

> Render to multiple platforms (Zapier action)



## OpenAPI

````yaml /openapi.yaml post /api/v1/zapier/actions/multi-platform
openapi: 3.0.0
info:
  title: Kynva Public API
  description: >

    # Kynva Public API v4.0


    The stateless contract API: everything flows through

    `POST /api/v1/facade/generate` with a `RenderForgeRequestV1` body.


    ## Entry Points


    ### Sync preview

    ```

    POST /generate { operation: "preview" } → 200 with rendered outputs

    ```


    ### Async render

    ```

    POST /generate { operation: "render" } → 202 + job → poll GET
    /render-jobs/{id} or subscribe to webhooks

    ```


    ### Signed image URLs (the OG-image primitive)

    ```

    POST /api/v1/generate/sign → signed GET URLs → 302 to immutable rendered
    PNGs

    ```


    ## Core Principle

    Deterministic by construction: the same request, engine version, and seed

    produce byte-identical output.


    ## API Versioning

    Include `X-API-Version: 2026-01-01` in all requests.


    ## Authentication

    Include `Authorization: Bearer <token>` in all requests (signed image

    GET URLs authenticate by signature instead).


    ## Idempotency

    Include `Idempotency-Key: <uuid>` for all POST/PATCH mutations.


    ## Rate Limiting

    Tiered limits per endpoint category (see documentation).
  version: 4.0.0
  contact:
    name: Kynva Support
    url: https://github.com/fredadun/renderforge
  license:
    name: MIT
    url: https://opensource.org/licenses/MIT
servers:
  - url: https://api.kynva.ai
    description: Production
  - url: https://renderforge-production-838f.up.railway.app
    description: Production (direct, until api.kynva.ai DNS lands)
  - url: http://localhost:3000
    description: Development
security:
  - bearerAuth: []
tags:
  - name: Brands
    description: Brand management
  - name: BrandKits
    description: Brand kit version management
  - name: Assets
    description: Asset upload and management
  - name: Drafts
    description: Draft creation and workflow
  - name: Decisions
    description: Decision records and explainability
  - name: Render Jobs
    description: Async render job management
  - name: Webhooks
    description: Webhook configuration and DLQ
  - name: Render Now
    description: Single-call convenience endpoint
  - name: Templates (Advanced)
    description: Template selection and listing
  - name: Validation (Advanced)
    description: Stateless validation
  - name: Compile (Advanced)
    description: Stateless compilation
  - name: Licenses (Advanced)
    description: License checking
  - name: Spec Render (Advanced)
    description: Direct spec preview/render
  - name: Reference
    description: Reference data (export profiles, API versions)
  - name: System
    description: Health checks and system info
  - name: Images
    description: Generate images from templates
  - name: Templates
    description: Manage reusable templates
  - name: Health
    description: Service health and status
paths:
  /api/v1/zapier/actions/multi-platform:
    post:
      tags:
        - Zapier
      summary: Multi-platform render
      description: Render to multiple platforms (Zapier action)
      requestBody:
        content:
          application/json:
            schema:
              type: object
              properties:
                templateId:
                  type: string
                brandName:
                  type: string
                primaryColor:
                  type: string
                headline:
                  type: string
                body:
                  type: string
                platforms:
                  type: string
                  description: 'Comma-separated: instagram-post,facebook-post'
                adaptationMode:
                  type: string
      responses:
        '200':
          description: Default Response
components:
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      bearerFormat: API Key
      description: >-
        Your Kynva API key (kyn_live_xxx or kyn_test_xxx; legacy rf_ keys remain
        valid)

````