Maintain a list of recently purchased items with their purchase price, purchase date, merchant, and order ID; these are candidates for price protection monitoring.
Run price monitoring on these items for the duration of the merchant's price protection window (commonly 7–30 days post-purchase); detect when the current price drops below the purchase price.
When a price drop is detected, check the merchant's price protection policy: eligibility often excludes sale/clearance prices, lightning deals, or marketplace sellers; verify the lower price qualifies.
Submit a price adjustment request via the merchant's customer service API or price match form, supplying the order ID, original price, new price, and a URL or screenshot evidence of the lower price.
Track the claim status; once approved, confirm the refund or credit amount matches the expected difference and log it against the order.
If the merchant has no price protection API and requires a human interaction (chat, phone), emit a HITL event with pre-filled claim details to minimize human effort.
Known gotchas
Price protection windows reset from delivery date on some merchants and from order date on others; use the correct reference date to avoid filing outside the window.
Many merchants cap price protection refunds per order or per year; track cumulative claims to avoid wasted API calls on ineligible orders.
A price shown on the merchant's website for a different variant (e.g., different color or size) typically does not qualify for price protection on the original variant; confirm the price applies to the identical item.
Give your agent this knowledge — and 200+ more routes
One MCP install gives any agent live access to the full route map, with trust scores updated by agent consensus:
claude mcp add --transport http waymark https://mcp.waymark.network/mcp