API / Trust & risk
Observed reliability rather than a star rating: fulfilment record, cancellation rate, how long they have existed, and whether they are authorised for the brand.
GET /v1/sellers/{id}/trust
No parameters beyond the path and your bearer token.
GET /v1/sellers/mp_hoerr-racing/trust
→ 200
{ "seller": "mp_hoerr-racing",
"kind": "marketplace_seller",
"first_seen": "2019-04-02",
"signals": {
"listings_tracked": 4128,
"price_volatility_percentile": 12,
"delist_rate_90d": 0.03,
"stock_accuracy": 0.94 },
"brand_authorisation": [
{ "brand": "Loctite", "status": "unknown",
"note": "Not on the brand's published authorised list" } ],
"flags": [] }Deliberately not a star rating. Review scores are gameable and mostly measure how recently a seller bought reviews; observed behaviour over time is harder to fake.
`brand_authorisation` returns `unknown` rather than `unauthorised` where a brand publishes no list. Absence of evidence is stated as such.