> ## Documentation Index > Fetch the complete documentation index at: https://developers.meshapi.ai/llms.txt > Use this file to discover all available pages before exploring further. # Edit an image > OpenAI-compatible image editing endpoint. Accepts EITHER ``multipart/form-data`` (binary uploads: ``image``, optional ``mask``, ``reference_images``) OR ``application/json`` whose image fields are data-URL / base64 strings (or ``{"url": ...}`` objects) — the same convention as the chat ``image_url``. Remote http(s) URLs are rejected (mesh does not server-side-fetch images); send a ``data:image/;base64,`` URL. Supports ``operation`` in {edit, remove_background, upscale, outpaint, mix, reframe, inpaint}. Each op is gated by the resolved model's supports_image_ flag (422 when unset / unsupported); the legacy provider matrix is a transitional backstop for the original four ops. - ``edit`` (default): openai, byteplus, vertex — prompt + image (+ optional mask + refs). - ``remove_background``: openai, vertex — image only; prompt optional. - ``upscale``: vertex (Imagen) or byteplus (Seedream Smart Upscale) — image + upscale_factor (x2|x4; Seedream maps x2→2k, x4→4k). - ``outpaint``: vertex — image + prompt + mask (defines expansion region). - ``mix``: Gemini image models + gpt-image (openai) — prompt + image + 1-3 reference_images (2-4 sources composed into one, sent as image[]); single output. - ``reframe``: Gemini image models — image + aspect_ratio (1:1|3:4|4:3|9:16|16:9|2:3|3:2); recomposes by outpainting to the target ratio; single output. - ``inpaint``: openai, vertex — image + mask (canonical WHITE=edit; mesh normalizes per provider). Optional mask_feather blends the result back through the mask (Pillow; 501 if unavailable). > **Note:** The image response may not render in GitBook's "Test it" panel. > To view the edited image, try this endpoint with Postman, curl, or another > HTTP client. ## OpenAPI ````yaml /api/openapi.json post /v1/images/edits openapi: 3.1.0 info: title: MeshAPI description: One key, all AI models. version: 0.1.0 servers: - url: https://api.meshapi.ai security: - BearerAuth: [] paths: /v1/images/edits: post: tags: - Images summary: Edit an image description: >- OpenAI-compatible image editing endpoint. Accepts EITHER ``multipart/form-data`` (binary uploads: ``image``, optional ``mask``, ``reference_images``) OR ``application/json`` whose image fields are data-URL / base64 strings (or ``{"url": ...}`` objects) — the same convention as the chat ``image_url``. Remote http(s) URLs are rejected (mesh does not server-side-fetch images); send a ``data:image/;base64,`` URL. Supports ``operation`` in {edit, remove_background, upscale, outpaint, mix, reframe, inpaint}. Each op is gated by the resolved model's supports_image_ flag (422 when unset / unsupported); the legacy provider matrix is a transitional backstop for the original four ops. - ``edit`` (default): openai, byteplus, vertex — prompt + image (+ optional mask + refs). - ``remove_background``: openai, vertex — image only; prompt optional. - ``upscale``: vertex (Imagen) or byteplus (Seedream Smart Upscale) — image + upscale_factor (x2|x4; Seedream maps x2→2k, x4→4k). - ``outpaint``: vertex — image + prompt + mask (defines expansion region). - ``mix``: Gemini image models + gpt-image (openai) — prompt + image + 1-3 reference_images (2-4 sources composed into one, sent as image[]); single output. - ``reframe``: Gemini image models — image + aspect_ratio (1:1|3:4|4:3|9:16|16:9|2:3|3:2); recomposes by outpainting to the target ratio; single output. - ``inpaint``: openai, vertex — image + mask (canonical WHITE=edit; mesh normalizes per provider). Optional mask_feather blends the result back through the mask (Pillow; 501 if unavailable). > **Note:** The image response may not render in GitBook's "Test it" panel. > To view the edited image, try this endpoint with Postman, curl, or another > HTTP client. operationId: edit_image parameters: - in: header name: X-Mesh-Version required: false schema: type: string enum: - 2026-08 default: 2026-08 example: 2026-08 description: >- Dated version of the API contract to pin this request to. Omit it and the request is served under `2026-08` — the oldest supported version, so an existing integration is never moved by a release. A malformed or unsupported value is rejected with `400 invalid_api_version` rather than falling back silently. The version actually served is echoed as `X-Mesh-Version` on every response, including errors. requestBody: content: application/json: examples: default: summary: Example request (JSON with base64 image) value: model: openai/gpt-image-1 prompt: Add a red scarf to the portrait image: url: >- data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+M9QDwADhgGAWjR9awAAAABJRU5ErkJggg== responses: '200': description: The edited image(s). content: application/json: schema: {} examples: default: summary: Successful image edit response value: created: 1717200000 data: - url: >- https://images.example.com/edits/portrait-with-scarf.png '401': description: Missing or invalid API key '402': description: Insufficient balance or spend cap reached '415': description: Unsupported image content type '422': description: Validation error (missing required field or oversized file) '429': description: Rate limit exceeded '500': description: Upstream provider error '501': description: Provider does not support image editing security: - BearerAuth: [] components: securitySchemes: BearerAuth: type: http scheme: bearer description: >- Enter your MeshAPI key (`rsk_...`) — sent as `Authorization: Bearer `. ````