Provided by Keepa
Get Amazon Best Sellers by Category or Product Group
Get ASINs ranked by sales in an Amazon category or product group. Choose current rank, a 30/90/180-day average, a previous calendar month, or subcategory rank. Root categories and product groups return up to 500000 ASINs; subcategories up to 10000. Lists may be cached for one hour.
Contract snapshot: 2026-09-29. Inspect in Glasser for current terms.
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"domain",
"category"
],
"properties": {
"year": {
"type": "integer",
"maximum": 9999,
"minimum": 2000
},
"month": {
"type": "integer",
"maximum": 12,
"minimum": 1
},
"range": {
"enum": [
0,
30,
90,
180
],
"type": "number"
},
"domain": {
"enum": [
1,
2,
3,
4,
5,
6,
8,
9,
10,
11
],
"type": "number"
},
"sublist": {
"enum": [
0,
1
],
"type": "number"
},
"category": {
"anyOf": [
{
"type": "integer",
"maximum": 9007199254740991,
"minimum": 1
},
{
"type": "string",
"maxLength": 1000,
"minLength": 1
}
]
},
"variations": {
"enum": [
0,
1
],
"type": "number"
}
},
"additionalProperties": false
}{
"domain": 1,
"category": 281052
}This Endpoint publishes no output schema. You get the Provider's own response body, unchanged — we do not warrant a shape we cannot guarantee.
How to run it
Two fields identify it: the Provider and the endpoint key. The key looks like a path because it usually mirrors the Provider's own, but it is an opaque identifier — not a URL you can open. The same provider:endpoint pair is what your Policy lists.
Once: paste this into your agent's chat. The Skill installs the CLI and logs in by itself. For an agent that cannot use a shell, connect it over MCP instead.
set up https://glasser.ai/SKILL.mdThen ask for this Endpoint:
Run the Keepa Endpoint /bestsellers on Glasser with input {"domain":1,"category":281052}glasser run -p keepa -e '/bestsellers' -i '{"domain":1,"category":281052}' --endpoint-version 1Pinned to version 1, the one this page shows: if a newer version is published first, the Run is refused instead of charged under new terms. Install and log in first on Get Started.
Once per Run:
IDEMPOTENCY_KEY=$(uuidgen)Run it, and copy this same block to send it again:
curl -X POST https://api.glasser.ai/v1/runs \
-H "Authorization: Bearer gl_..." \
-H "Idempotency-Key: $IDEMPOTENCY_KEY" \
-H "Content-Type: application/json" \
-d '{"provider":"keepa","endpoint":"/bestsellers","input":{"domain":1,"category":281052},"endpoint_version":1}'Reuse the same Idempotency-Key to send it again: the second send is a read of the first Run. A new key is a new Run and a new Charge. Pinned to version 1 for the same reason as the CLI.
What each outcome charges
| No result | The Provider answered: nothing matched. | $0.00 |
|---|---|---|
| Provider error | The Provider failed to answer. | $0.00 |
| Timed out | The deadline won. | $0.00 |
| Internal failure | Our defect. | $0.00 |