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contributions welcome License


CNCF Serverless Workflow defines a vendor-neutral, open-source, and fully community-driven ecosystem for defining and running DSL-based workflows that target the Serverless technology domain.

This project is composed of:

CNCF Serverless Workflow is hosted by the Cloud Native Computing Foundation (CNCF) and was approved as a Cloud Native Sandbox level project on July 14, 2020.

Table of Contents

CNCF Landscape

Serverless Workflow project falls under the CNCF "App Definition and Development" category.

It is a member project of the CNCF Serverless Working Group.

CNCF Landscape

Check out our project DevStats here.


Latest release Latest release branch Working branch
Core Specification
Serverless Workflow v0.8 0.8.x main
Additional Components
Synapse 0.1.0-alpha1 main
GO SDK v2.0.0 1.0.x main
Java SDK 4.0.2.Final 4.0.x main
.NET SDK v0.7.4.4 main
TypeScript SDK v3.0.0 3.0.x main
Python SDK v1.0.0 1.0.x main
VSCode Extension 1.6.0 main


Serverless Workflow is open to host open-source runtime implementations that would like to be part and grow alongside the core specification.

Synapse is a Kubernetes-native workflow runtime which supports and is part of the Serverless Workflow eco-system.


Serverless Workflow encourages development of SDKs dedicated to help developers with consuming, parsing, validating and testing their workflows that use the Serverless Workflow DSL.


In order to enhance developer experience with the specification, we also provide a Visual Studio Code extension. The sources of the extension are found here.


To generate the SVG diagram from the YAML or JSON file, you need to have the following tools installed:


We have a growing community working together to build a community-driven and vendor-neutral workflow ecosystem. Community contributions are welcome and much needed to foster project growth.

See here for the list of community members that have contributed to the specification.

To learn how to contribute to the specification reference the 'how to contribute' doc.

If you have any copyright questions when contributing to a CNCF project like this one, reference the Ownership of Copyrights in CNCF Project Contributions doc.


Code of Conduct

As contributors and maintainers of this project, and in the interest of fostering an open and welcoming community, we pledge to respect all people who contribute through reporting issues, posting feature requests, updating documentation, submitting pull requests or patches, and other activities.

We are committed to making participation in this project a harassment-free experience for everyone, regardless of level of experience, gender, gender identity and expression, sexual orientation, disability, personal appearance, body size, race, ethnicity, age, religion, or nationality.

See our full project Code of Conduct information here.

Weekly Meetings

The Serverless Workflow team meets weekly, every Monday at 11AM ET (USA Eastern Time).

To register for meetings please visit our website and click on the "Register for Weekly Project Meetings" button. You can register for individual meetings or for the entire series.

The meeting minutes can be accessed in this document.

World Time Zone Converter:

Repository Structure

Here is the outline of the repository to help navigate the specification documents:

File/folder Description The main specification document
OWNERS Defines the current specification maintainers and approvers
LICENSE Specification License doc Project Maintainers Info Project Governance Info Documentation on how to contribute to the spec Defines the spec Code of Conduct
usecases Specification Use Cases
schema Contains all specification JSON Schemas
roadmap Specification Roadmap
references References used for specification docs
media Includes all images used in spec docs
extensions Information on spec extensions
examples Specification examples
comparisons Comparisons of Serverless Workflow with other workflow DSLs
community Contains info on the spec community
annualreviews Contains the project annual reviews presented to the CNCF TOC
meetingminutes Contains the projects community meeting minutes


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