HTTP API Handbook
A queryable handbook for HTTP methods, status codes, errors, caching, and idempotency — written for people who ship JSON APIs.
Portable policy knowledge for local retrieval.
HTTP API Handbook is original guidance mapped to RFC 9110 semantics and RFC 9457 problem details.
Query by the decision you are making: method, status, error format, cache, pagination.
It does not replace the RFCs. It tells you which choice is usually right in a JSON API.
Intended use
Grounding API design and review. Lookup when choosing a method, status, or error shape.
Out of scope
This pack does not run a server, issue tokens, or define a single company’s public API.
Sources
Sample questions
This Knowledge Image contains prompts, tool policy, namespace grants, or other agent registry metadata.
Mounting the pack for retrieval does not execute tools. Applying these policies affects your application only if your host explicitly honors them.
Credentials must never be stored inside a pack.