openapi: 3.1.0 info: title: Open Library Authors Recentchanges.json API description: 'Open Library''s public, read-only REST API for searching books, authors, and works, retrieving structured records (works, editions, authors, subjects), fetching cover images, and pulling recent changes. No authentication is required; clients are expected to send a descriptive `User-Agent` header to receive a higher per-second rate limit. ' version: 1.0.0 contact: name: Open Library Developer Documentation url: https://openlibrary.org/developers/api servers: - url: https://openlibrary.org description: Open Library production - url: https://covers.openlibrary.org description: Open Library covers service tags: - name: Recentchanges.json paths: /recentchanges.json: get: summary: Recent changes feed responses: '200': $ref: '#/components/responses/Record' tags: - Recentchanges.json components: responses: Record: description: Open Library JSON record. content: application/json: schema: type: object additionalProperties: true