The Amazon Selling Partner MCP connects an MCP-compatible AI client to authorized Seller Central or Vendor Central accounts. Depending on your Amazon permissions and the available tools, you can work with catalog information, orders, inventory, listings, reports, and other Selling Partner operations.
Endpoints and sign-in
| Purpose | Address |
|---|---|
| MCP server | https://sp.kuudo.com/mcp |
| OAuth resource discovery | https://sp.kuudo.com/.well-known/oauth-protected-resource/mcp |
| Kuudo sign-in issuer | https://app.kuudo.com |
Add the MCP server address to your client. The other addresses are used by clients for OAuth discovery; you normally do not enter them manually.
Authentication uses OAuth with your Kuudo user account. During sign-in, choose the Kuudo organization that contains the Selling Partner authorization and approve the permissions shown. The client manages the resulting access token. Your Seller Central or Vendor Central authorization is a separate connection; signing in to Kuudo alone does not create it.
The server's published access scopes include mcp:access, amazon-connections:read, and amazon-tokens:vend. Review the permissions shown in Kuudo's consent screen.
A successful sign-in is not proof that a particular client can discover or use every tool. Confirm the connection and account access with a read-only request.
Before you connect
- Have a Kuudo user account and membership in the intended organization.
- In Kuudo, open Authorizations, select Connect Amazon, choose Amazon Selling Partner, select Seller Central or Vendor Central and the marketplace, then complete Amazon's consent flow. To request an account owner’s approval, send an external invitation. See Connect and Manage Amazon Authorizations.
- Use an MCP client that supports remote HTTP connections and Kuudo's OAuth flow. For client compatibility, see OAuth client requirements.
Connect your AI client
- In the client, add a remote MCP server or custom connector.
- Enter
https://sp.kuudo.com/mcpas the server URL. - Start the connection. When prompted, sign in with your Kuudo user account, select the intended organization if asked, and approve the requested access.
- Confirm that the client shows the server as connected and lists its tools. Choose the intended authorized selling partner and marketplace when required.
- Try a read-only request, such as: “Show the marketplaces available for my connected selling partner.” Confirm that the results are for the expected account before making changes.
Seller and vendor authorizations are separate. The marketplaces available for operations depend on the connected account and Amazon permissions. Review the account, marketplace, and requested action before approving a change.
OAuth client requirements
Kuudo supports OAuth authorization code with PKCE and client ID metadata documents (CIMD), as well as appropriately preregistered clients. A client that supports only dynamic client registration needs an appropriate Kuudo registration. Client support and setup labels vary; check your client's documentation if sign-in does not start.
Troubleshooting
- Sign-in succeeds but the client cannot discover tools: Reconnect and check the client error. A completed browser sign-in alone does not confirm the MCP connection. Contact support with the time and client name if the problem continues; do not share tokens.
- No selling partner or marketplace appears: Check the selected Kuudo organization, the Seller or Vendor Central authorization, and the Amazon user's permissions.
- An operation is unavailable or denied: Check the Amazon account type, marketplace, account permissions, and the client's selected authorization.
- You selected the wrong organization: Disconnect and reconnect, then select the intended organization during Kuudo sign-in.