Create a workflow

curl --request POST \
  --url https://api.fal.ai/v1/workflows \
  --header 'Authorization: <api-key>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "name": "my-image-workflow",
  "title": "My Image Generation Workflow",
  "contents": {
    "name": "my-image-workflow",
    "version": "1.0.0",
    "nodes": {
      "node_a1b2c3": {
        "id": "node_a1b2c3",
        "type": "run",
        "app": "fal-ai/flux/dev",
        "depends": [],
        "input": {
          "prompt": "$input.prompt"
        },
        "metadata": {
          "position": {
            "x": 300,
            "y": 100
          }
        }
      }
    },
    "output": {
      "image": "$node_a1b2c3.images.0.url"
    },
    "schema": {
      "input": {
        "prompt": {
          "type": "string"
        }
      },
      "output": {
        "image": {
          "type": "string"
        }
      }
    }
  }
}
'

import requests

url = "https://api.fal.ai/v1/workflows"

payload = {
    "name": "my-image-workflow",
    "title": "My Image Generation Workflow",
    "contents": {
        "name": "my-image-workflow",
        "version": "1.0.0",
        "nodes": { "node_a1b2c3": {
                "id": "node_a1b2c3",
                "type": "run",
                "app": "fal-ai/flux/dev",
                "depends": [],
                "input": { "prompt": "$input.prompt" },
                "metadata": { "position": {
                        "x": 300,
                        "y": 100
                    } }
            } },
        "output": { "image": "$node_a1b2c3.images.0.url" },
        "schema": {
            "input": { "prompt": { "type": "string" } },
            "output": { "image": { "type": "string" } }
        }
    }
}
headers = {
    "Authorization": "<api-key>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    name: 'my-image-workflow',
    title: 'My Image Generation Workflow',
    contents: {
      name: 'my-image-workflow',
      version: '1.0.0',
      nodes: {
        node_a1b2c3: {
          id: 'node_a1b2c3',
          type: 'run',
          app: 'fal-ai/flux/dev',
          depends: [],
          input: {prompt: '$input.prompt'},
          metadata: {position: {x: 300, y: 100}}
        }
      },
      output: {image: '$node_a1b2c3.images.0.url'},
      schema: {input: {prompt: {type: 'string'}}, output: {image: {type: 'string'}}}
    }
  })
};

fetch('https://api.fal.ai/v1/workflows', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

{
  "workflow": {
    "name": "my-image-workflow",
    "title": "My Image Generation Workflow",
    "user_nickname": "johndoe",
    "created_at": "2025-01-15T12:00:00Z",
    "is_public": false,
    "contents": {
      "name": "my-image-workflow",
      "version": "1.0.0",
      "nodes": {
        "node_a1b2c3": {
          "id": "node_a1b2c3",
          "type": "run",
          "app": "fal-ai/flux/dev",
          "depends": [],
          "input": {
            "prompt": "$input.prompt"
          },
          "metadata": {
            "position": {
              "x": 300,
              "y": 100
            }
          }
        }
      },
      "output": {
        "image": "$node_a1b2c3.images.0.url"
      },
      "schema": {
        "input": {
          "prompt": {
            "type": "string"
          }
        },
        "output": {
          "image": {
            "type": "string"
          }
        }
      }
    }
  }
}

{
  "error": {
    "type": "validation_error",
    "message": "Invalid request parameters"
  }
}

{
  "error": {
    "type": "authorization_error",
    "message": "Authentication required"
  }
}

{
  "error": {
    "type": "authorization_error",
    "message": "Access denied"
  }
}

{
  "error": {
    "type": "rate_limited",
    "message": "Rate limit exceeded"
  }
}

{
  "error": {
    "type": "server_error",
    "message": "An unexpected error occurred"
  }
}