Data infrastructure for the agentic era.
Turn raw product files into rich, structured data. Catalogian tracks every change and makes it instantly available to any agent, tool, or pipeline.
For AI-native teams
Point Catalogian at a data source and your agents get the full catalog instantly — browse, filter, search, aggregate. Changes arrive as row-level diffs. Plug in via 16 MCP tools or the OpenAI Responses API. No ETL. Just a URL and an API key.
Explore the catalog
→ snapshot_schema "my-catalog"
← 34 fields · 250,847 SKUs
brand (18 values) · product_type (11)
availability · price · color · size ...
→ filter_snapshot_rows
brand = "Waveline" · availability = "in_stock"
← 4,203 matching rows (of 250,847)
Track what changed
"What price changes happened this week?"
→ get_delta (last 7 days)
→ get_delta_rows (changeType: changed)
← 1,847 price changes
avg change: −8.2%
22 dropped below MAP threshold
→ download_filtered_snapshot → CSV
How it works
01
Register a URL, upload a file, or configure an SFTP push source. Any format: CSV, TSV, or JSONL. Catalogian starts watching immediately.
02
Row-level delta detection on every ingest. New items, updates, and removals are recorded with a full timestamp and the complete field values — not just a hash.
03
Permanent URLs for vendors. Webhooks for your stack. Point-in-time downloads for troubleshooting. REST API and native MCP for developers and AI agents.
Built for
Distribute your catalog to feed managers, ad partners, and analysts via scoped share links — each vendor gets their own permanent URL.
Turn legacy flat-file exports into a live data feed your apps and AI pipelines can actually use. Per-client sources, scoped API keys, and a full audit history.
Catch catalog changes before they become campaign problems. Ask your AI agent "are the updated promo codes live?" before launch.
Whether you're monitoring your own data or tracking dozens of client feeds, Catalogian gives your team a live API for every change.
What you can do with your data
Native MCP and OpenAI Responses API support. Connect AI agents via POST /v1/mcp (Claude Desktop, Cursor) or POST /v1/responses (OpenAI SDK, any Responses-compatible framework).
Download your catalog exactly as it was at any past ingest. Audit what a vendor received, reconcile discrepancies, or retrieve a known-good state.
Every changed row captured with full field data. Query by event or filter by change type — new, updated, or removed.
Every source gets a clean, permanent URL — always current, instantly shareable. Generate unique links for each vendor, partner, or integration.
Get notified the moment anything changes. Trigger your pipeline, sync your systems, stay ahead of stale data.
Query your catalog changes programmatically. Paginated, filterable, and structured for developers who need reliable access to what changed and when.
Use cases
Product feed monitoring and change detection API — built for every workflow.
Track every price movement across your feeds the moment it happens.
Know instantly when stock levels change across any feed.
Monitor competitor catalogs and surface pricing shifts automatically.
Catch additions, removals, and modifications across your entire catalog.
Get notified the moment a product goes out of stock in any feed.
Monitor all your platform feeds in one place — Google, Meta, Pinterest, and more.
Integrations
Connect Catalogian's MCP server to AI agents and agent frameworks — or wire it into any automation platform.
Free plan includes 1 source and 50,000 SKUs. No credit card required.
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