Graph Compose: Hosted Temporal Workflows with Visual Builder and AI

Graph Compose is a hosted platform for orchestrating API workflows on Temporal's durable execution engine. You define workflows as graphs of nodes (HTTP calls, AI agents, iterators, error boundaries) that run as Temporal workflows without managing infrastructure.

Three Ways to Build the Same Graph

Every workflow uses a consistent JSON format that can be created through:

• A React Flow visual builder
• A typed TypeScript SDK (@graph-compose/client)
• An AI assistant that turns plain English into a graph

How It Works

You submit JSON workflows via API to https://api.graphcompose.io/v1/workflows/execute and they run immediately on hosted Temporal. No deploy step, no Temporal cluster to run, no workers to deploy. The platform handles scheduling, retries, error boundaries, and state persistence.

Workflow Example

const workflow = {
  "nodes": [
    {
      "id": "upload_image",
      "type": "http",
      "dependencies": [],
      "http": {
        "method": "PUT",
        "url": "https://storage.example.com/{{ context.filename }}",
        "headers": {
          "Content-Type": "{{ context.contentType }}",
          "Authorization": "Bearer {{ $secret('storage_token') }}"
        },
        "body": "{{ context.imageData }}"
      },
      "activityConfig": {
        "retryPolicy": {
          "maximumAttempts": 3,
          "initialInterval": "1s",
          "backoffCoefficient": 2
        },
        "startToCloseTimeout": "30 seconds"
      }
    },
    {
      "id": "generate_thumbnails",
      "type": "http",
      "dependencies": ["upload_image"],
      "http": {
        "method": "POST",
        "url": "https://images.example.com/process",
        "body": {
          "source": "{{ results.upload_image.data.url }}",
          "sizes": ["400x400", "200x200"]
        }
      }
    }
  ],
  "context": {
    "filename": "profile.jpg",
    "contentType": "image/jpeg"
  }
}

Key Features

• Durable Execution: Workflows survive server restarts, network failures, and process crashes. Temporal replays from the last checkpoint.
• Automatic Retries: Configure retry policies per node with max attempts, backoff intervals, and non-retryable error types.
• Error Boundaries: Wrap nodes in try/catch-style error boundaries with fallback behavior.
• State Persistence: Query workflow state at any point.
• Template Expressions: Nodes reference results from upstream nodes via {{ results.node_id.data.field }} syntax.

Licensing

Open-core model: the execution foundations and integrations service are AGPL-3.0, while the platform orchestrator, visual builder, and AI assistant are proprietary.