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Update (September 30, 2025): The API v3 limited beta has begun!

The API v3 beta has begun! You can apply to participate here if you have not already. We're excited for your feedback!

• Stack Exchange API version 3 is being expanded to include the public platform. API version 2.x will eventually be deprecated, but not anytime soon.

• There is an upcoming limited beta release for v3, which community members can apply to participate in.

Updates (October 6th, 2025): We've closed applications to join the beta

Due to a high number of applicants and participants, we've closed our submissions form. Thanks for your interest and feedback!

Update (September 30, 2025): The API v3 limited beta has begun!

The API v3 beta has begun! We're excited for your feedback!

• Stack Exchange API version 3 is being expanded to include the public platform. API version 2.x will eventually be deprecated, but not anytime soon.

• There is an upcoming limited beta release for v3, which community members were able to apply to participate in, but we've since closed invitations while we process them.

The API v3 limited beta has begun!

Update (September 30, 2025): The API v3 limited beta has begun!