# Changelog of Open Library Books API — search & ISBN lookup (no key) (`synthetic.ia/openlibrary-books`) Actor

- **URL**: https://apify.com/synthetic.ia/openlibrary-books/changelog.md
- **Full Actor documentation**: https://apify.com/synthetic.ia/openlibrary-books.md

## Changelog

### 0.1 — 2026-09-18

- First release. Open Library book search, ISBN lookup and author search as a clean HTTP API (Standby) + MCP — no key.
- Operations: search (title/author/free-text), isbn (edition details, author names resolved in parallel, cover URL), author.
- Strict ISBN + query validation; pay-per-event per query.