One API for every marketplace you sell on.
Each platform's quirks are solved once, in one adapter, so your code never sees them.
curl -X POST https://api.sellermate.ai/public/v1/tools/get_campaign_performance \
-H "X-API-Key: sm_live_..." \
-d '{"start_date":"2026-10-01","end_date":"2026-10-25"}'Why build on Build
You could integrate each marketplace yourself. Most teams find that is the slow part, not the product.
Skip months of marketplace onboarding
Connect an account through a hosted flow and call the API the same day.
One shape for every marketplace
The same calls and fields everywhere. A new marketplace is a new account, not a new integration.
History is already there
Up to 3 years of data on Scale. No waiting for a backfill before your product has something to show.
Writes you can trust
Budget caps, preview before apply, idempotency keys and an audit log on every write.
Who it is for
Agencies
Build reporting and automation once and run it across every client account. Pay per account, so cost follows the size of your book.
Software companies
Put marketplace data and actions inside your product without owning each integration. A fixed cost per account makes resale simple.
Brands
Pull your own data into the tools your team already uses, and let an MCP server or script act on it. Two accounts cost $97 a month.
Priced per connected account
Start free. Move up when you connect more accounts. Every marketplace costs the same per account.
- 1 account
- 90 days of data
- 60 requests/min
- Up to 3 accounts
- 12 months of data
- 60 requests/min
- 10 accounts included, then $33 each
- 3 years of data
- 300 requests/min
- Monthly or annual billing
Included on every plan
- All core Amazon data: ads, orders, inventory, catalog and returns.
- Search Query Performance (SQP).
- Writes: create and change campaigns, ad groups, keywords, targets and bids, with guardrails.
- Webhooks.
- REST API and MCP server.
- Every marketplace as it launches. Amazon is live. Walmart, Flipkart and TikTok Shop are coming soon.
Make your first call today.
Start on Free with one account. No sales call.