walmart.com
Walmart operates a developer platform for Walmart Marketplace and related business integrations such as seller, supplier, transportation, and advertising APIs. The marketplace APIs support programmatic management of catalog items, inventory, pricing, and orders on Walmart properties.
Walmart exposes Marketplace HTTP APIs for inventory, item, order, and price management plus an OAuth-protected MCP server; no public CLI or GraphQL surface was found.
- Walmart MCP Serverdiscovered
- Walmart Marketplace Inventory APIdiscovered
- Walmart Marketplace Item APIdiscovered
- Walmart Marketplace Order APIdiscovered
Sign in to the Walmart Developer Portal as a Marketplace seller or approved solution provider, then create/manage your app credentials in the portal to get the client ID and client secret used with the Token API. Walmart's marketplace docs state that Marketplace APIs use OAuth 2.0 and you must obtain an access token before making API requests; use the Authentication and Get an access token using Token API guides as the onboarding path.
Sign in to the Walmart Developer Portal as a Marketplace seller or approved solution provider and obtain your legacy Marketplace credentials there: WM_CONSUMER.ID, the channel type value for WM_CONSUMER.CHANNEL.TYPE, and the private key material used to generate WM_SEC.AUTH_SIGNATURE plus the current WM_SEC.TIMESTAMP. The older Item and Order Swagger specs describe this header set, while current Marketplace docs indicate Walmart is moving Marketplace APIs to OAuth 2.0 in the Authentication flow.
Use Walmart-issued OAuth authorization for the Walmart MCP server. The curated registry identifies the MCP endpoint as OAuth-protected, but the public authorization metadata was not located in the pages reviewed. Start from the Walmart Developer Portal to obtain access and follow the MCP client's OAuth flow against Walmart's advertised metadata when available.
conventions · 0/8 published
- integrations.json✗
/.well-known/integrations.json - llms.txt✗
/llms.txt - API catalog✗
/.well-known/api-catalog - OpenAPI document✗
/api/schema/, /openapi.json, /swagger.json, /api/openapi.json, or /v1/openapi.json - MCP server card✗
/.well-known/mcp/server-card.json - OAuth protected resource✗
/.well-known/oauth-protected-resource - Agent card✗
/.well-known/agent-card.json - Agent skills✗
/.well-known/agent-skills/index.json
Publish these signals → /publishing