Peaklyst is an Amazon Selling Partner application. We access seller-authorized listing data exclusively via Amazon's official Selling Partner API (SP-API), authorized via Login with Amazon (LWA) OAuth 2.0.

What we access

Listings Items API v2021-08-01 — read your listing attributes (titles, bullets, descriptions, generic_keywords/search-terms, brand, item dimensions, A+ content references)
Catalog Items API v2022-04-01 — read product catalog metadata for your listings
Product Type Definitions API v2020-09-01 — read product-type schema requirements

We access ONLY the seller's own listing attributes. We do not access other sellers' listings, keywords, or performance data.

What we do NOT access

NO buyer data, order data, or financial data
NO personal data (no PII)
NO data from other sellers' listings or accounts
NO scraping or third-party Amazon data providers (we do not use Helium 10, Keepa, Jungle Scout-style data sources or unofficial APIs)

Writes happen only after explicit approval

Peaklyst generates AI-driven optimization suggestions following Amazon's published listing guidelines and category-specific style guides. Suggestions are presented to the seller for review. Writes back to your Amazon account happen only after you explicitly approve each suggestion. No auto-mutation, no scheduled writes without your prior consent.

Where your data lives

All Peaklyst infrastructure is hosted by Hetzner Online GmbH in Germany (Falkenstein/Nuremberg) — EU-resident only.

Revoking access

You can revoke Peaklyst's access at any time via Manage Your Apps in Amazon Seller Central. Revocation is immediate.

Sub-processors

See the sub-processor list in our Privacy Policy for the full list of third parties that process data on our behalf, each bound by a Data Processing Agreement that prohibits training on Amazon Information.