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Learn about Membership

As a Linux Foundation Collaborative Project, the OpenAPI Initiative aims to create an open source, technical community where industry participants may easily contribute to and adopt the project’s technology and focus on creating, evolving and promoting a vendor neutral description format known as the OpenAPI Specification (formerly known as the Swagger Specification).

The OpenAPI Initiative is committed to creating a structure to invest resources in growing the community, continuing to extend the technology, and providing a collaboration hub for sharing and best practices.

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Membership Details

Participation Level * Fee to Join Board Seat Notes
Participating Member See table below Yes Includes sponsorship discounts to OpenAPI hosted events
Associate Member $0 Special restricted seat Restricted to pre-approved open source projects, non-governmental organizations, academic institutions, or government research institutions.

All member companies must also be a member of The Linux Foundation, unless there are less than 10 employees. Please visit to learn more about Linux Foundation membership.

The annual fee for Participating Membership is determined according to the following table, based on your current consolidated employee headcount:

Employees at Company Not Yet an LF Member Existing LF Member
5,000 or more $45,000 $25,000
500-4,999 $30,000 $15,000
100-499 $20,000 $10,000
10-99 $10,000 $5,000
Less than 10 With LF membership: $5,500
Without LF membership: $1.000
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Learn More

If you have further questions or are interested in getting updates on the technical developments of the spec, please complete the form below and you will be contacted shortly. We will also include you on our regular newsletter mailing list so you can keep up to date on new features and opportunities to collaborate with the OpenAPI Initiative.