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Documentation Index

Fetch the complete documentation index at: https://docs.runflow.io/llms.txt

Use this file to discover all available pages before exploring further.

Start AI image and video runs with one HTTP call, then receive results by callback or polling. The Runflow API exposes a curated catalog of 50 models from Runflow, Google, Alibaba, OpenAI, and others. Auth is HTTP Bearer.

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Five-minute quickstart

export RUNFLOW_API_KEY="your_key"

curl -X POST https://api.runflow.io/v1/models/runflow/background-replace/runs \
  -H "Authorization: Bearer $RUNFLOW_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{ "input": { "prompt": "white studio", "image_url": "https://..." } }'
Get a key at app.runflow.io. Full walkthrough at Quickstart.

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Where to go next

Browse models

50 models, 6 categories, prices and endpoints.

Quickstart

First call in under 5 minutes.

API reference

Generated from the public OpenAPI spec.

For agents

Skill, llms.txt, OpenAPI catalog.

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Concepts

Authentication

Bearer header.

Runs

Callbacks, polling, statuses.

Callbacks

Async result delivery.

Errors

Status codes, error envelope.

Pricing

Per-request, per-second, per-megapixel.

Rate limits

Headers and backoff.

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Guides

Pick a model

Decision tree from task to model.

Batch process media

Many inputs, one request.

Handle async callbacks

Webhook handler patterns.

Verify signatures

HMAC verification.