openapi: 3.1.0 info: title: Open Library Authors Search.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: Search.json paths: /search.json: get: summary: Search books and works description: Solr-backed search across the Open Library catalog. parameters: - name: q in: query description: Solr query string. schema: type: string - name: fields in: query schema: type: string - name: sort in: query schema: type: string enum: - new - old - random - key - relevance - name: lang in: query schema: type: string - name: page in: query schema: type: integer - name: limit in: query schema: type: integer - name: offset in: query schema: type: integer responses: '200': $ref: '#/components/responses/SearchResults' tags: - Search.json components: responses: SearchResults: description: Paginated search results. content: application/json: schema: type: object properties: start: type: integer num_found: type: integer docs: type: array items: type: object additionalProperties: true