# Selling Partner API (SP-API) + n8n.io — Pipedream Connect

> Connect a user's Selling Partner API (SP-API) and n8n.io accounts and expose tools for both apps directly in your product or your agent.

- Apps: Selling Partner API (SP-API) (`amazon_selling_partner`) + n8n.io (`n8n_io`)
- This page (HTML): https://pipedream.com/apps/amazon-selling-partner/integrations/n8n-io
- One `external_user_id` owns both connected accounts, and each account stays independently revocable.

## One session, both toolsets (recommended)

- Endpoint: `https://remote.mcp.pipedream.net/v3`
- Headers: `Authorization: Bearer <token>` · `x-pd-project-id` · `x-pd-environment` · `x-pd-external-user-id` · `x-pd-app-slug: amazon_selling_partner,n8n_io`
- `x-pd-app-slug` takes a comma-separated list, so `amazon_selling_partner,n8n_io` is one session on one transport. Both toolsets arrive from a single `listTools()`, and a tool is called exactly as it would be in a single-app session.

```ts
import { Client } from "@modelcontextprotocol/sdk/client/index.js"
import { StreamableHTTPClientTransport } from "@modelcontextprotocol/sdk/client/streamableHttp.js"
import { PipedreamClient } from "@pipedream/sdk"

const pd = new PipedreamClient({
  projectId: process.env.PIPEDREAM_PROJECT_ID!,
  clientId: process.env.PIPEDREAM_CLIENT_ID!,
  clientSecret: process.env.PIPEDREAM_CLIENT_SECRET!,
  projectEnvironment: "production",
})

const accessToken = await pd.rawAccessToken

const transport = new StreamableHTTPClientTransport(
  new URL("https://remote.mcp.pipedream.net/v3"),
  {
    requestInit: {
      headers: {
        Authorization: `Bearer ${accessToken}`,
        "x-pd-project-id": process.env.PIPEDREAM_PROJECT_ID!,
        "x-pd-environment": "production",
        "x-pd-external-user-id": "{external_user_id}", // any stable ID for this user in your system
        "x-pd-app-slug": "amazon_selling_partner,n8n_io",
      },
    },
  },
)

const mcp = new Client({ name: "my-agent", version: "1.0.0" })
await mcp.connect(transport)

const { tools } = await mcp.listTools()

// One list, both toolsets: Selling Partner API (SP-API) and n8n.io tools arrive
// together, each keyed by its own app's slug.

// e.g. run Check FBA Inventory Levels:
const result = await mcp.callTool({
  name: "amazon_selling_partner-check-fba-inventory-levels",
  arguments: {
    marketplaceId: "Marketplace ID",
    details: true,
  },
})
```

Docs: [MCP guide](https://pipedream.com/docs/connect/mcp/developers.md)

## Both apps from your backend

```ts
import { PipedreamClient } from "@pipedream/sdk"

const pd = new PipedreamClient({
  projectId: process.env.PIPEDREAM_PROJECT_ID!,
  clientId: process.env.PIPEDREAM_CLIENT_ID!,
  clientSecret: process.env.PIPEDREAM_CLIENT_SECRET!,
  projectEnvironment: "production",
})

const externalUserId = "{external_user_id}" // any stable ID for this user in your system

const [amazonSellingPartnerTools, n8nIoTools] =
  await Promise.all([
    pd.components.list({ app: "amazon_selling_partner" }),
    pd.components.list({ app: "n8n_io" }),
  ])

// One external user owns both connected accounts, so either app's tools
// run on their behalf with the same externalUserId.
```

Docs: [Managed auth guide](https://pipedream.com/docs/connect/managed-auth/quickstart.md) · [Tools guide](https://pipedream.com/docs/connect/components.md)

## Selling Partner API (SP-API)

- API slug: `amazon_selling_partner` (use in MCP headers and tool keys)
- Auth: OAuth (Pipedream-managed)
- Categories: Commerce
- Website: https://sell.amazon.com/
- App page (HTML): https://pipedream.com/apps/amazon-selling-partner
- Tools: 8 actions · 2 triggers

Full tool list, API proxy, and SDK quickstart: https://pipedream.com/apps/amazon-selling-partner.md

### Actions (8)

- [Check FBA Inventory Levels](https://pipedream.com/apps/amazon-selling-partner/actions/check-fba-inventory-levels.md) — `amazon_selling_partner-check-fba-inventory-levels`
- [Fetch Orders by Date Range](https://pipedream.com/apps/amazon-selling-partner/actions/fetch-orders-by-date-range.md) — `amazon_selling_partner-fetch-orders-by-date-range`
- [Generate Sales & Inventory Reports](https://pipedream.com/apps/amazon-selling-partner/actions/generate-sales-inventory-reports.md) — `amazon_selling_partner-generate-sales-inventory-reports`
- [Get Order Details](https://pipedream.com/apps/amazon-selling-partner/actions/get-order-details.md) — `amazon_selling_partner-get-order-details`
- [List Inbound Shipments](https://pipedream.com/apps/amazon-selling-partner/actions/list-inbound-shipments.md) — `amazon_selling_partner-list-inbound-shipments`
- [List Marketplace ID Options](https://pipedream.com/apps/amazon-selling-partner/actions/list-marketplace-id-options.md) — `amazon_selling_partner-list-marketplace-id-options`
- [Optimize Product Pricing](https://pipedream.com/apps/amazon-selling-partner/actions/optimize-product-pricing.md) — `amazon_selling_partner-optimize-product-pricing`
- [Retrieve Sales Performance Reports](https://pipedream.com/apps/amazon-selling-partner/actions/retrieve-sales-performance-reports.md) — `amazon_selling_partner-retrieve-sales-performance-reports`

### Triggers (2)

- [New Inbound Shipment to FBA Created](https://pipedream.com/apps/amazon-selling-partner/triggers/new-inbound-shipment-to-fba-created.md) — `amazon_selling_partner-new-inbound-shipment-to-fba-created`
- [New Order Created](https://pipedream.com/apps/amazon-selling-partner/triggers/new-order-created.md) — `amazon_selling_partner-new-order-created`

## n8n.io

- API slug: `n8n_io` (use in MCP headers and tool keys)
- Auth: API key (Pipedream-managed)
- Categories: Infrastructure & Cloud
- Website: https://n8n.io/
- App page (HTML): https://pipedream.com/apps/n8n-io
- Tools: 0 actions · 0 triggers

Full tool list, API proxy, and SDK quickstart: https://pipedream.com/apps/n8n-io.md

---

- Selling Partner API (SP-API): https://pipedream.com/apps/amazon-selling-partner.md · n8n.io: https://pipedream.com/apps/n8n-io.md
- All apps: https://pipedream.com/apps — index: https://pipedream.com/llms.txt
- Pipedream docs for agents: https://pipedream.com/docs/llms.txt