GNAP

Grant Negotiation and Authorization Protocol (GNAP) is a next-generation authorization protocol formalized as RFC 9635 in October 2024. This work took place in the GNAP working group at the IETF. Questions, suggestions and protocol changes should be discussed on the mailing list or GitHub.

• RFC 9635 - GNAP Core
• GNAP Resource Servers

Early drafts of the spec were called "XYZ", "TxAuth", and "Transactional Authorization".

See Also: OAuth 2.1, an officially adopted effort to consolidate and simplify the best practices of OAuth 2.0.

More resources

• RFC announcement and status of GNAP Resource Servers
• OAuth.xyz (Justin Richer)
• XYZ: Interaction (Justin Richer)
• XYZ: Compatibility with OAuth 2.0 (Justin Richer)
• Transactional Authorization - Identiverse 2019 (Justin Richer)