EachLabs Workflows

Build, manage, and execute multi-step AI workflows that chain multiple models together via the EachLabs Workflows API.

Authentication

Header: X-API-Key: <your-api-key>

Set the EACHLABS_API_KEY environment variable. Get your key at eachlabs.ai.

Base URL

https://workflows.eachlabs.run/api/v1

Building a Workflow

To build a workflow, you must: (1) create the workflow, then (2) create a version with the steps.

Step 1: Create the Workflow

curl -X POST https://workflows.eachlabs.run/api/v1/workflows \
  -H "Content-Type: application/json" \
  -H "X-API-Key: $EACHLABS_API_KEY" \
  -d '{
    "name": "Product Photo to Video",
    "description": "Generate a product video from a product photo"
  }'

This returns a workflowID. Use it in the next step.

Step 2: Create a Version with Steps

curl -X POST https://workflows.eachlabs.run/api/v1/workflows/{workflowID}/versions \
  -H "Content-Type: application/json" \
  -H "X-API-Key: $EACHLABS_API_KEY" \
  -d '{
    "description": "Initial version",
    "steps": [
      {
        "name": "enhance_photo",
        "model": "gpt-image-v1-5-edit",
        "version": "0.0.1",
        "input": {
          "prompt": "Place this product on a clean white background with studio lighting",
          "image_urls": ["{{inputs.image_url}}"],
          "quality": "high"
        }
      },
      {
        "name": "create_video",
        "model": "pixverse-v5-6-image-to-video",
        "version": "0.0.1",
        "input": {
          "image_url": "{{steps.enhance_photo.output}}",
          "prompt": "Slow cinematic rotation around the product",
          "duration": "5",
          "resolution": "1080p"
        }
      }
    ]
  }'

Important: Before adding a model to a workflow step, check its schema with GET https://api.eachlabs.ai/v1/model?slug=<slug> to validate the correct input parameters.

Step 3: Trigger the Workflow

curl -X POST https://workflows.eachlabs.run/api/v1/{workflowID}/trigger \
  -H "Content-Type: application/json" \
  -H "X-API-Key: $EACHLABS_API_KEY" \
  -d '{
    "inputs": {
      "image_url": "https://example.com/product.jpg"
    }
  }'

Step 4: Poll for Result

curl https://workflows.eachlabs.run/api/v1/executions/{executionID} \
  -H "X-API-Key: $EACHLABS_API_KEY"

Poll until status is "completed" or "failed". Extract output from step_outputs.

Workflow Management

List Workflows

curl https://workflows.eachlabs.run/api/v1/workflows \
  -H "X-API-Key: $EACHLABS_API_KEY"

Get Workflow Details

curl https://workflows.eachlabs.run/api/v1/workflows/{workflowID} \
  -H "X-API-Key: $EACHLABS_API_KEY"

Bulk Trigger

Trigger the same workflow with multiple inputs:

curl -X POST https://workflows.eachlabs.run/api/v1/{workflowID}/trigger/bulk \
  -H "Content-Type: application/json" \
  -H "X-API-Key: $EACHLABS_API_KEY" \
  -d '{
    "executions": [
      { "inputs": { "image_url": "https://example.com/product1.jpg" } },
      { "inputs": { "image_url": "https://example.com/product2.jpg" } },
      { "inputs": { "image_url": "https://example.com/product3.jpg" } }
    ]
  }'

Check Execution Status

curl https://workflows.eachlabs.run/api/v1/executions/{executionID} \
  -H "X-API-Key: $EACHLABS_API_KEY"

Response includes status (pending, running, completed, failed) and step_outputs with results from each step.

Webhooks

Configure a webhook to receive results asynchronously:

curl -X POST https://workflows.eachlabs.run/api/v1/{workflowID}/trigger \
  -H "Content-Type: application/json" \
  -H "X-API-Key: $EACHLABS_API_KEY" \
  -d '{
    "inputs": { "image_url": "https://example.com/photo.jpg" },
    "webhook_url": "https://your-server.com/webhook"
  }'

Version Management

Workflow versions allow you to iterate on workflows while keeping previous versions intact. Steps are defined in versions, not in the workflow itself.

Create a Version

curl -X POST https://workflows.eachlabs.run/api/v1/workflows/{workflowID}/versions \
  -H "Content-Type: application/json" \
  -H "X-API-Key: $EACHLABS_API_KEY" \
  -d '{
    "description": "Added upscaling step",
    "steps": [
      {
        "name": "generate_image",
        "model": "gpt-image-v1-5-text-to-image",
        "version": "0.0.1",
        "input": {
          "prompt": "{{inputs.prompt}}",
          "quality": "high"
        }
      },
      {
        "name": "upscale",
        "model": "topaz-upscale-image",
        "version": "0.0.1",
        "input": {
          "image_url": "{{steps.generate_image.output}}"
        }
      }
    ]
  }'

Get a Version

curl https://workflows.eachlabs.run/api/v1/workflows/{workflowID}/versions/{versionID} \
  -H "X-API-Key: $EACHLABS_API_KEY"

Update a Version

curl -X PUT https://workflows.eachlabs.run/api/v1/workflows/{workflowID}/versions/{versionID} \
  -H "Content-Type: application/json" \
  -H "X-API-Key: $EACHLABS_API_KEY" \
  -d '{
    "description": "Updated prompt template",
    "steps": [
      {
        "name": "generate_image",
        "model": "gpt-image-v1-5-text-to-image",
        "version": "0.0.1",
        "input": {
          "prompt": "Professional photo: {{inputs.prompt}}",
          "quality": "high"
        }
      }
    ]
  }'

List Versions

curl https://workflows.eachlabs.run/api/v1/workflows/{workflowID}/versions \
  -H "X-API-Key: $EACHLABS_API_KEY"

Workflow Features

• Two-phase creation: Create workflow first, then add steps via versions
• Step chaining: Reference previous step outputs with {{steps.step_name.output}}
• Input variables: Use {{inputs.variable_name}} to pass dynamic inputs
• Version management: Create, update, and retrieve workflow versions
• Bulk execution: Process multiple inputs in a single API call
• Webhook support: Get notified when executions complete
• Public/unlisted sharing: Share workflows with others

Example Workflow References

See references/WORKFLOW-EXAMPLES.md for common workflow patterns.