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Open WebUI

Prerequisites

Section titled “Prerequisites”
  • Open WebUI access with an admin account
  • An OpenShop MCP endpoint:
    • Sandbox: https://sandbox-mcp.openshopgo.com/mcp
    • Production: https://mcp.openshopgo.com/mcp
  • Authentication method set to OAuth 2.1

Hosted connection (Open WebUI UI)

Section titled “Hosted connection (Open WebUI UI)”
  1. Open Open WebUI.
  2. Click your user icon in the bottom-left.
  3. Click Settings.
  4. Click Admin Settings in the bottom-left.
  5. Click Integrations in the left sidebar.
  6. Click the + next to Manage Tool Servers.
  7. In the top-right, if type is OpenAPI, change it to Streamable HTTP.
  8. Enter server details:
    • Name: OpenShop
    • ID: openshop-openwebui
    • Description: optional
    • API Base URL: choose one
      • Sandbox: https://sandbox-mcp.openshopgo.com/mcp
      • Production: https://mcp.openshopgo.com/mcp
  9. Open the auth dropdown and choose OAuth 2.1.
  10. Click Register Client.
  11. After successful registration, click Save.
  12. Go back to the main chat window.
  13. Click the four squares tools button and toggle on the OpenShop tool.
  14. Open WebUI will redirect you to OpenShop authentication.
  15. Enter your app token and store slug, then complete sign-in.
  16. Return to chat and send a test prompt to verify tools are called.

Example test prompt:

list my last 5 orders from openshop

If correctly connected, Open WebUI sends a tool request to the MCP server, receives the result, and includes it in the model response.