Seller API

# Build on Whatnot

Manage products, orders and shipments from your own tools.

[Read the docs](/getting-started/introduction) [Connect via MCP](/getting-started/mcp)

```bash MCP
# Add the hosted Seller API MCP server to Claude Code
claude mcp add --transport http --client-id bb1bf1ca-0452-4737-ad8f-81175f1601b8 \
  --callback-port 8080 whatnot https://mcp.whatnot.com

# Then authenticate once
claude /mcp
```

```bash cURL
# List your products
curl https://api.whatnot.com/seller-api/rest/v2/products \
  -H "Authorization: Bearer $WHATNOT_API_KEY" \
  -H "Content-Type: application/json"
```

Works with Claude Code, Cursor, VS Code, Windsurf and Claude Desktop. [Setup guide](/getting-started/mcp)

## Why use the Seller API?

Automate the busywork of selling on Whatnot, from listing products to shipping orders, with the tools you already run.

1. 1

   ### Run your catalog from code

   Create, update and delete products and their variants without opening the app.

2. 2

   ### Keep stock in sync

   Set or adjust available quantity across many variants in one request, so listings match your shelves.

3. 3

   ### Line up your shows

   Choose a product's sale format, add it to a show's lineup and publish it to your profile shop.

4. 4

   ### Ship faster

   Pull orders and shipments, request shipping labels and add tracking codes as packages go out.

5. 5

   ### See how a show did

   Fetch a show's analytics next to its products and orders, in your own reports.

6. 6

   ### Hand it to an agent

   Connect the hosted MCP server and your AI agent can do all of the above with your own API token.

## Browse the docs

Every page, grouped by what you're doing.

### Getting Started

* [Introduction](/getting-started/introduction)
* [Authentication](/getting-started/authentication)
* [Rate limits](/getting-started/rate-limits)
* [Webhooks](/getting-started/webhooks)
* [Connect via MCP](/getting-started/mcp)

### Reference guides

* [Request IDs](/request-ids)
* [Errors](/errors)
* [Product taxonomy](/taxonomy)

### Tools

* [Hosted MCP server](/getting-started/mcp)

### API Reference

* [Products](/api-reference/tag/products)
* [Inventory](/api-reference/tag/inventory)
* [Merchandising](/api-reference/tag/merchandising)
* [Orders](/api-reference/tag/orders)
* [Shipments](/api-reference/tag/shipments)
* [Shipping](/api-reference/tag/shipping)
* [Shows](/api-reference/tag/shows)
* [Analytics](/api-reference/tag/analytics)
* [Users](/api-reference/tag/users)
* [Models](/api-reference/models)