Top-level API metadata: title, version, description, servers, global security, and counts. Start here on an unfamiliar API.

List the API's tags (logical groups) with descriptions and endpoint counts.

Compact index of endpoints (method, path, summary, tags). Optionally filter by tag.

Substring search over endpoint path, summary, description, tags, and parameter names. Returns matches ranked by relevance.

List named component/definition schemas with one-line descriptions.

Substring search over schema names, property names, and descriptions. Returns matches ranked by relevance.

Full detail for one endpoint: parameters, request/response schemas, and required auth. Named schemas are shown by name — resolve them with get_schema.

Resolve one named schema. Nested named schemas are shown as { "$schema": "Name" } markers — call get_schema again to expand them.

Full security schemes for the API (OAuth2 flows, scopes, API-key locations) plus the global security requirement.