*Source: Marketplace Ad Pros — canonical version at https://marketplaceadpros.com/amazon-partner-connect/* # Partner Connect: your product on top, our Amazon back end underneath *Last updated: October 31, 2026* Partner Connect is a Marketplace Ad Pros add-on for agencies and software companies that build their own Amazon product for clients. Your clients connect their Amazon Ads, Seller Central or Vendor Central accounts through connect links you create, return to your product when they finish, and you're notified by webhook. Marketplace Ad Pros runs the connections, data syncs and reports behind it, and your product reads the data through the REST API or MCP server. ## What you get - **Connect links that return to you.** Create a link with your own `state`. When the client finishes, their browser goes to your return URL with `link_id`, `state`, `success` and `error`. - **No stop on our site.** Optionally skip our confirmation page, so the client goes from your product straight to Amazon and back. - **Webhooks.** Signed events when a connect link completes or fails, a connection needs reauthorizing, access to a profile is revoked, or a brand is enabled or disabled at your brand limit. - **A key per client.** Limit a REST API key to one client's brands, so a bug or leaked key in one client's pipeline can't reach another's. Included on every paid plan, with or without Partner Connect. - **The data.** Amazon Ads, Seller Central and Vendor Central data through the [REST API](/developer-api/) and [MCP server](/amazon-ads-mcp-server/), with exports of up to 100,000 rows per call. ## How it works 1. **Add Partner Connect** to a paid AI Connect or optimization subscription from Billing & Plans. 2. **Set your return URL and webhook**, and choose whether to skip our confirmation page. Both can be set in the app or through the API (`PUT /api/v1/connect-settings/`, `POST /api/v1/webhooks/`). 3. **Send links and build your product.** Create a connect link per client (`POST /api/v1/connect-links/` with your `state`), send it, and confirm the result with `GET /api/v1/connect-links/{link_id}/` or the webhook. Give each client's pipeline its own brand-limited key if you like. For the full walkthrough, see [how to build an Amazon client app without the SP-API back end](/guides/how-to-build-amazon-client-app-without-sp-api/). ## Pricing $19 per month, added to a paid AI Connect or optimization subscription. It follows your subscription's billing: $5 per week on a weekly plan or $190 per year on an annual one. It isn't available during the two-week Launch period. ## Built on an API already in production In the 30 days to October 31, 2026: 20+ accounts called the API, 2M+ API calls, 150+ brands across those accounts, and $3.5M+ a month in ad spend (estimated). 8 of those accounts run 5 or more brands each, and 11 run over $50,000 a month in ad spend each. Ad spend is a monthly run rate estimated from each brand's last 7 days, converted to US dollars. Our own staff accounts are excluded. ## Know what you're getting - Amazon's consent screen names Marketplace Ad Pros as the app your client authorizes. Let your clients know to expect it. - You build the screens your clients see. There's no branded copy of our web app, domain, email or billing. - Brand-limited keys are for the REST API, not MCP. Account-wide endpoints (connect links, webhooks, connect settings, integrations, changesets, AMS and AMC) need a key without a brand limit, and Seller Central reports that cover a whole seller account need a key that covers every brand on that connection. - One webhook endpoint per account. Deliveries are best effort and can arrive more than once or out of order, so confirm results through the API. - If Partner Connect ends, new connect links stop returning to your URL and stop skipping our confirmation page, and webhooks stop. Your clients' connections keep working. Prefer to manage clients inside our app instead? See [Marketplace Ad Pros for agencies](/for-agencies/). Comparing options? See [which Amazon agency software allows custom branding](/guides/amazon-agency-software-custom-branding/). --- [Start building](https://app.marketplaceadpros.com/signup)