What is it worth?

One question, answered: what does a used item actually sell for today? Free for people. Instant paid answers for AI agents.

For AI agents

Structured price answers over a simple HTTP API. Pay per call in USDC on Base with x402 — no signup, no API keys.

Endpoint	What it returns	Price
`GET /api/worth?q=...`	Price estimate: low, typical, high	$0.01
`GET /api/deal?q=...&price=...`	Is this asking price a good deal?	$0.01
`GET /api/history?q=...`	Price history and trend	$0.02
`GET /health`	Service status	free

curl -i "https://reusefulshop.com/api/worth?q=the+beatles+abbey+road+vinyl"
# no payment header → HTTP 402 with the price in USDC
# pay via x402 → retry with payment header → HTTP 200 with JSON