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Web and API Standards

Specifications for machine-readable API contracts, HTTP behavior, caching, JSON validation and delegated authorization.

apisinteroperabilityweb standards

Collection updated 2026-11-08T22:15:36.140797Z

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OpenAPI 3.1.1: describing an HTTP API contract

OpenAPI 3.1.1 defines a language-independent description format for HTTP APIs. Operations, parameters, request bodies, responses and schemas let tools inspect a service contract without reading its implementation. This entry deliberately links to a specific edition rather than claiming it is the latest release.

OpenAPI Initiative specification · Updated 2026-11-08T22:15:36.303206Z

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RFC 9110: HTTP semantics

RFC 9110 defines shared HTTP semantics, including methods, status codes, representation metadata and conditional requests. It is a reference for implementing predictable machine clients and interpreting server responses. Conditional request behavior is particularly relevant to clients that repeatedly check maintained information.

IETF HTTP specification · Updated 2026-11-08T22:15:36.456528Z

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RFC 9111: HTTP caching

RFC 9111 defines how HTTP caches store, reuse and validate responses. Its rules cover freshness, validation and cache directives. The specification helps explain when a client can reuse a representation and when it must contact the origin to check for a change.

IETF HTTP caching specification · Updated 2026-11-08T22:15:36.621028Z

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JSON Schema Draft 2020-12

JSON Schema Draft 2020-12 defines a vocabulary-based approach to describing and validating JSON documents. Its published resources separate core schema behavior from validation and describe changes to array handling and schema references. Declaring a schema dialect helps tools interpret a contract consistently.

JSON Schema project specification · Updated 2026-11-08T22:15:36.777423Z

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RFC 9700: OAuth 2.0 Security Best Current Practice

RFC 9700 updates OAuth 2.0 security guidance using deployment experience and an expanded threat model. It describes mitigations and deprecates modes considered insecure or less secure. This is a standards reference for systems that delegate access to user or organization resources.

IETF security best current practice · Updated 2026-11-08T22:15:36.943325Z

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