Catalogue · Books and authors
Up-to-date data, one provider.
Canonical books, authors, and identifiers for engineers and founders who would rather ship product than maintain scrapers.
Datasets
What you can pull today
Books and authors, same IDs across REST, MCP, and bulk.
Surfaces
One key, several ways in
Inspired by how modern data APIs ship: same credentials across REST, agents, and bulk.
Use cases
Where this lands in your stack
Product catalogs
Enrich listings with canonical titles, ISBNs, and author names that stay stable.
Search & recommend
Seed retrieval indexes without rebuilding Open Library joins yourself.
Agent tools
Give coding agents a typed MCP surface instead of brittle scrape scripts.
Change sync
Follow the changelog cursor so your cache tracks the release stream.
Books snapshot
From the current lakehouse normalize
Release 2026-09.2 · Open Library · served from Postgres.
119.8M
Editions
78.2M
Works
19.2M
Contributors
Get an API key
Keys are issued manually in v1. Drop your work email and we will send setup details.