How to Build a Sourcing Watchlist with Claude
Use Claude and ToolRouter to build a sourcing watchlist. Monitor procurement across marketplaces over time.
Tool
Set up ongoing procurement monitoring by mapping source coverage, searching listings, and saving compact watchlist snapshots. Claude is strongest when the watchlist setup needs reasoning: which sources matter for your category, what filters to set, and how to interpret changes across snapshots.
Connect ToolRouter to Claude
1Go to Settings → Connectors → Add custom connector
2Enter the details below and click Add
Name
ToolRouterURL
https://api.toolrouter.com/mcp3Done — works on Claude chat, desktop, and mobile
Steps
Once connected (see setup above), use the Marketplace Search tool:
- Define your procurement brief: target items, acceptable conditions, regions, budget range, and how often you plan to monitor.
- Use `marketplace-search` with `source_coverage` to map which marketplaces serve your regions, then `search_listings` to run the first sweep.
- Save the results with `watchlist_snapshot` and ask Claude to identify which sources and filters are worth keeping for ongoing monitoring.
- On subsequent runs, compare the new snapshot against previous ones. Ask Claude to highlight new inventory, price changes, and sources that have gone quiet.
Example Prompt
Try this with Claude using the Marketplace Search tool
Use marketplace-search to set up a sourcing watchlist for used commercial espresso machines in Germany and the Netherlands. Map source coverage, search all available marketplaces, and save a watchlist snapshot. Tell me which sources are worth monitoring weekly and what filters I should lock in.
Tips
- Start with source coverage to avoid building a watchlist around sources that barely cover your region.
- Ask Claude to recommend a monitoring cadence based on how fast inventory turns over in your category.
- Keep the watchlist focused on three to five items maximum or the signal gets lost in noise.