Workflow SDK
Durable functions for long-running TypeScript apps and agents.
Marks TypeScript functions with "use workflow" and "use step" so they retry, persist state and resume across stateless invocations, which lets agents run for hours without hitting serverless timeouts. Open source and portable; runs on Vercel or any Node-compatible host.
- Vendor
- Vercel
- Category
- Agent infrastructure
- Pricing
- Open source
- Open source
- Yes
- License
- Apache 2.0
- Platforms
- TypeScript, Self-host
- Launched
- 2025
- Website
- workflow-sdk.dev
Features
- Durable steps
- Automatic retries
- Suspend & resume
- Built-in observability
Best for
- Agents
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