Remix API Reference

OpenAPI-First Rule

Before generating or executing API calls, fetch:

• https://api.remix.gg/docs/json

Use OpenAPI as the contract source of truth for:

• methods (GET/POST/...)
• paths
• params/query/body schemas
• response shapes

Base headers:

Authorization: Bearer <api_key>
Content-Type: application/json

Base URL: https://api.remix.gg

OpenAPI UI: https://api.remix.gg/docs

Response Envelope

Success:

{ "success": true, "data": { "...": "..." } }

Error:

{ "success": false, "error": { "code": "SOME_CODE", "message": "...", "details": null } }

Endpoint Families

Use OpenAPI for exact paths; these are the stable groups:

• Metadata: categories
• Games: list/detail/create/update
• Versions: list/detail/code/thread/status/validate/code-update
• Assets: list game assets, upload assets via POST /v1/games/{gameId}/assets
• Images: generate images via POST /v1/games/{gameId}/images/generate
• Sprites: generate sprites via POST /v1/games/{gameId}/sprites/generate
• Items: manage shop items via GET/POST /v1/games/{gameId}/items, POST/DELETE /v1/games/{gameId}/items/{itemId}
• Readiness: launch readiness checks

Not Exposed in Agent REST

• No delete route.
• No create-version route.
• No submit route.

Asset Upload

Asset uploads are available via POST /v1/games/{gameId}/assets. You can upload binary files (icons, sprites, audio) directly through the API.

Assets can also be managed through the Remix app/Studio upload flow.

Canonical flow:

1. create game
2. upload/update version code
3. upload assets as needed via POST /v1/games/{gameId}/assets
4. validate and/or launch-readiness
5. check status

Common Error Codes

• UNAUTHORIZED - Missing/invalid API key.
• ACCOUNT_INELIGIBLE - User is banned/deleted.
• FORBIDDEN - User does not own the game/version.
• GAME_NOT_FOUND - Game missing.
• VERSION_NOT_FOUND - Game/version mismatch or missing.
• MAX_IN_DEV_GAMES_EXCEEDED - Creator reached cap.
• VALIDATION_ERROR - Body/query failed validation.
• INVALID_JSON - Body could not be parsed as JSON.
• LIVE_VERSION_LOCKED - Attempted to edit a live version.
• VERSION_NOT_EDITABLE - Version is submitted/approved/launched.
• THREAD_CREATE_FAILED - Failed to provision upload thread.
• RATE_LIMITED - API key rate limit exceeded.
• INTERNAL_SERVER_ERROR - Unexpected server failure.