Perfect for Vibe Coders Early access open

Build Amazon tools
that used to take months

PPC optimizers. Inventory dashboards. AI-powered repricing. Automated bid management. Profitability analytics. Whatever you're building on Amazon data — ZonStack gives you the complete data layer so you can ship in days, not quarters.

Sponsored Ads and SP-API, synced and queryable. Connect your accounts, get structured data flowing in minutes, build on top with our API or your own tools.

Apply for early access See how it works

Works with your favorite AI tools

Claude Claude
Claude Code Claude Code
ChatGPT ChatGPT
Gemini Gemini
Codex Codex
Cursor Cursor
Copilot Copilot
Windsurf Windsurf

What people build on ZonStack

Bid management tools Profitability dashboards Inventory forecasting AI ad copy generators Cross-marketplace analytics Automated campaign builders Client reporting portals FBA fee auditors

The problem

Amazon's advertising and selling partner APIs are powerful but punishing. Rate limits, async report workflows, token management, pagination, compression, schema changes — the infrastructure tax is enormous.

Most teams spend months building import pipelines before they can write their first query. And then they spend months more keeping them running.

The fix

ZonStack handles the entire data pipeline — OAuth, token refresh, report scheduling, async polling, download, decompression, parsing, and storage — and gives you a synced database you can query directly or through a clean REST API.

Connect your Amazon accounts. Your data starts flowing within minutes. Build on top of it however you want.

Three steps to structured Amazon data

1

Connect

OAuth into your Sponsored Ads and SP-API accounts. We handle token management and refresh automatically.

2

Sync

Historical data backfills automatically. Daily syncs keep everything current. Choose which report types matter to you.

3

Build

Query via REST API, connect your BI tools, or access your dedicated database directly. Your data, your way.

Built for people who build

Whether you're managing ad spend for a portfolio of brands or shipping your first Amazon integration, ZonStack gives you the data layer so you can focus on what's above it.

Agencies

Manage many sellers, one platform

Multi-tenant by design. Each client's data is isolated in its own database. Connect new sellers in minutes, not days.

Brands

See all your Amazon data in one place

PPC performance, orders, inventory, business reports, returns — unified and current. Pipe it into your dashboards or warehouse.

Developers

Skip the infrastructure, ship the product

Clean REST API, webhook notifications, direct database access. Build your Amazon tool on our data layer instead of Amazon's raw APIs.

The platform

Everything you need to build on Amazon data, nothing you don't. Connect, query, build.

Dedicated database per tenant

Each account gets its own isolated MySQL database. Query directly, connect Metabase, pipe to your warehouse.

REST API

Clean, documented endpoints for PPC analytics, orders, products, and more. Bearer token auth.

Automatic daily sync

Reports are requested, polled, downloaded, decompressed, parsed, and stored — every day, without you thinking about it.

Historical backfill

Connect an account and historical data starts importing immediately. Configure how far back — up to 24 months.

Webhook notifications

Get notified when imports complete, when errors occur, or when new data is available.

Multi-marketplace

All Amazon regions and marketplaces. NA, EU, FE. One connection per selling account.

White-label ready

Bring your own OAuth app credentials. Your sellers authorize your app, not ours.

LLM-readable docs

llms.txt, full API reference, and OpenAPI spec — so AI agents can build integrations autonomously.

Every report type, covered

Structured reports are parsed into queryable tables. Generic reports are downloaded and stored as files you can access anytime.

Sponsored Ads API

Daily imports across all three ad products. Full attribution windows (1d, 7d, 14d, 30d).

Sponsored Products
  • Campaigns
  • Campaigns by Placement
  • Advertised Products
  • Keywords
  • Product Targets
  • Keyword Search Terms
  • Target Search Terms
  • Purchased Products
Sponsored Brands
  • Campaigns
  • Ad Groups
  • Keywords
  • Product Targets
  • Purchased Products
Sponsored Display
  • Campaigns
  • Ad Groups
  • Advertised Products
  • Product Targets
  • Purchased Products (Brand Halo)

Selling Partner API — Structured Reports

Parsed into dedicated database tables with automatic daily/weekly sync. Query-ready from the moment they land.

Orders
  • Orders (by Order Date)
  • Orders (by Last Update)
Business Reports
  • Sales & Traffic (by ASIN)
Inventory
  • Open Listings
  • FBA Inventory
Finance
  • Settlement Reports
  • FBA Reimbursements
Returns
  • FBA Customer Returns
  • MFN Returns
Fees
  • FBA Storage Fees
  • FBA Estimated Fees

Selling Partner API — On-Demand Reports

Downloaded and stored as files. Enable any of these on your account and access them via API or direct download.

Inventory
  • All Listings (Full)
  • Inactive Listings
  • Manage Inventory (Active)
  • Inventory Planning
  • Restock Recommendations
  • Reserved Inventory
  • Stranded Inventory
  • Inventory Ledger (Summary)
  • Inventory Ledger (Detail)
  • Recommended Removals
Fees
  • Referral Fee Preview
  • Long-Term Storage Fees
  • Storage Overage Fees
Fulfillment
  • FBA Shipments
  • Removal Orders
Performance
  • Seller Feedback
  • Promotion Performance
  • Coupon Performance
Brand Analytics
  • Search Terms
  • Market Basket
  • Repeat Purchases
Returns
  • FBA Replacements

Brand Analytics reports require Brand Registry enrollment.

AI-Native

Built for the way software gets built now

ZonStack is designed to be consumed by AI agents and LLMs as easily as by humans. Point your coding assistant at our docs and let it build your Amazon integration for you.

llms.txt

Standard machine-readable overview at /llms.txt — the starting point for any AI agent discovering ZonStack.

Full API reference for agents

Complete endpoint documentation at /llms-full.txt — every endpoint, parameter, and response shape in a format optimized for LLM context windows.

OpenAPI spec

Machine-parseable schema at /openapi.yaml — import into Cursor, Copilot, Claude, or any tool that understands OpenAPI 3.0.

Vibe-code your integration

Tell your AI assistant to read our docs and build the integration. The API is simple enough that most agents can write working code on the first try.

Example prompt for your AI coding assistant
Read the API docs at zonstack.com/llms-full.txt and build me a
dashboard that shows my top 10 Amazon campaigns by ACOS for the
last 30 days, with daily trend charts. Use the PPC summary and
campaign endpoints. My API token is in .env as ZONSTACK_TOKEN.

Get early access

We're onboarding teams in small batches. Tell us a bit about yourself and we'll get you set up.