Catalogian is a change detection service for product catalogs. Connect a data source — file, URL, or SFTP — and Catalogian tracks every row-level change on a schedule. Query what changed via the delta API, receive webhooks, or let AI agents access your catalog directly.
01
Upload a file, point to a URL, or configure SFTP. CSV, TSV, JSONL — all supported.
02
On your chosen schedule, Catalogian fetches the source and diffs it row by row against the previous version.
03
The delta API returns exactly which rows were added, changed, or deleted. Webhooks fire in real time.
Connect your first source in 5 minutes.
Sources, snapshots, deltas, key fields.
File upload, HTTP URLs, SFTP, FTPS.
REST endpoints, auth, pagination.
MCP, OpenAI SDK, LangChain, CrewAI.
Real-time change notifications.
Full before/after row data for every change.
Source limits, SKU caps, check intervals.
Connect your first source in under five minutes. No credit card required.
Quick Start guide