Price data API

You bring the ASINs. We track them every hour and give you the history — with the observation timestamp on every value, so you can actually use it for repricing.

What this is, and is not

We do not claim to cover all of Amazon — no one should believe a small team that says it does. We currently watch 870 products and hold 202,316 observations. Send us the ASINs you care about and they enter the hourly queue immediately, usually priced within the hour.

Endpoints

Endpoint	Does	Tokens
`GET /v1/product/{asin}`	Current price, metadata, observation time	1
`GET /v1/history/{asin}?days=90`	Full price series, min, max	3
`GET /v1/drops?pct=15`	Everything below its 30-day high	5
`POST /v1/track`	Add your ASINs to the hourly queue	1 / ASIN

Example

curl -H "Authorization: Bearer YOUR_KEY"   https://api.diphound.com/v1/history/B0CFYNPMRJ?days=30

{
  "asin": "B0CFYNPMRJ", "days": 30, "count": 134,
  "min": 75.75, "max": 153.10, "current": 75.75,
  "history": [ { "p": 153.10, "t": "2026-08-21T09:00:12Z" }, ... ]
}

Every response carries X-Tokens-Cost and X-Tokens-Remaining. Tokens are only charged when we actually served you data — a 404 costs nothing.

Get a key

Email api@diphound.com with the number of ASINs you need to follow. Trial keys include 2,000 tokens.