Design APIs with intention.
Opinionated guard rails for designing consistent, secure, evolvable APIs—built for teams shipping integrations to customers and partners.
Non-normative
Guides
Rationale, patterns, and examples that support the rules and help teams apply them.
Open GuidesHow to use this hub
- Start with the overview to align on principles and terminology.
- Apply Rules during API design, reviews, and implementation.
- Use Guides for rationale, patterns, and examples.
- Reference Appendices for checklists, glossary, and recipe-style guidance.
External readers
Use Rules as a contract checklist and Guides/Appendices for practical patterns.
Internal teams
Cite rule IDs in reviews and keep OpenAPI as the single source of truth.