Runware API

Runware API Skill

Use this skill when working with Runware requests in this repo. Prefer the current Runware docs for model-specific parameters, because available models and capabilities change often.

Docs To Check

• Platform intro: https://runware.ai/docs/platform/introduction
• Authentication: https://runware.ai/docs/platform/authentication
• Task polling: https://runware.ai/docs/platform/task-polling
• Errors: https://runware.ai/docs/platform/errors
• Rate limits: https://runware.ai/docs/platform/rate-limits
• Model search: https://runware.ai/docs/platform/model-search
• Text to image guide: https://runware.ai/docs/guides/text-to-image

Request Rules

• REST endpoint: https://api.runware.ai/v1.
• WebSocket endpoint: wss://ws-api.runware.ai/v1.
• Raw API request bodies are always a JSON array of task objects, even for one task.
• Authenticate REST calls with Authorization: Bearer <API_KEY> whenever possible. Payload auth is allowed by docs but avoid embedding keys in saved JSON.
• For WebSockets, the first message must be an authentication task containing the API key; subsequent messages use the same authenticated connection.
• Every task that accepts taskUUID must use a fresh UUID v4. Preserve and log the UUID for debugging and async polling.
• Match responses to requests by taskUUID and taskType; do not assume array order is enough.

Local Helper

This workspace has an ignored local helper at local/runware_request.py.

Examples:

export RUNWARE_API_KEY="..."
python3 local/runware_request.py model-search --search "pixel art" --limit 5
python3 local/runware_request.py text-to-image --prompt "a small airship over a forest"
python3 local/runware_request.py raw request.json
python3 local/runware_request.py poll <taskUUID>

The helper prints the full JSON response, retries transient REST/capacity failures with exponential backoff, exits nonzero when errors is present, and uses only Python standard-library modules.

Async And Polling

• For long-running operations, set "deliveryMethod": "async" when the model or workflow supports it.
• Poll with a getResponse task:

[
  {
    "taskType": "getResponse",
    "taskUUID": "00000000-0000-4000-8000-000000000000"
  }
]

• Use exponential backoff when polling. Start around 1-2 seconds, increase the delay, and add an initial delay for predictable long tasks such as video.
• getResponse can return processing, success, or error; completed generations can appear before the whole task is finished.

Error And Retry Rules

• Runware errors are returned in an errors array. Multiple-task requests can have some successful data entries and some scoped errors.
• Log the full message and taskUUID; the UUID is important for support.
• Retry only transient failures with exponential backoff: HTTP 429, HTTP 5xx, and capacity/provider codes such as timeoutProvider or providerRateLimitExceeded.
• Do not blindly retry client errors such as invalid parameters, invalid API keys, missing balance, or permission failures.
• Keep normal concurrency around 2-4 requests unless the user has a capacity agreement or the current docs say otherwise.

Image Generation Defaults

For imageInference text-to-image work:

• Use taskType: "imageInference".
• Include model, positivePrompt, width, height, and a UUID v4 taskUUID.
• Use runware:101@1 only as a quick FLUX.1 Dev starting point; search or inspect model docs when style, cost, speed, or capability matters.
• negativePrompt is useful for many diffusion models, but FLUX-style models may ignore it.
• Check each model's recommended defaults for dimensions, steps, scheduler, CFG, and supported extras before assuming parameters are valid.

Secret Handling

• Never commit API keys, .env files, generated request payloads containing keys, or downloaded private outputs.
• Prefer RUNWARE_API_KEY in the shell environment.
• If a command fails because the key is missing, ask the user to provide or set the key instead of inventing one.