FluxBuilder

FluxBuilder by InspireUI is the native Flutter app builder for WooCommerce, Shopify, and WordPress — trusted by 50,000+ users. This plugin connects Codex, Claude Code, and any other MCP client to the remote FluxBuilder MCP server so you can build, customize, and ship production-ready mobile apps without writing code.

Install on Codex

Add the InspireUI marketplace, then install the FluxBuilder plugin:

codex plugin marketplace add https://github.com/inspireui/fluxbuilder_mcp_remote.git --ref main --sparse .agents/plugins
codex plugin add fluxbuilder@inspireui

If the marketplace is already configured, run only:

codex plugin add fluxbuilder@inspireui

Install on Claude Code

Add the InspireUI marketplace, then install the FluxBuilder plugin:

claude plugin marketplace add inspireui/fluxbuilder_mcp_remote
claude plugin install fluxbuilder@inspireui

Or from within an interactive Claude Code session:

/plugin marketplace add inspireui/fluxbuilder_mcp_remote
/plugin install fluxbuilder@inspireui

Other MCP Clients (Cursor, VS Code, Windsurf, OpenCode, …)

FluxBuilder is a remote HTTP MCP server with OAuth, so any MCP-capable client can connect without this plugin. Add the server to your client's MCP config:

{
  "mcpServers": {
    "fluxbuilder": {
      "type": "http",
      "url": "https://ai.fluxbuilder.com/mcp"
    }
  }
}

• Cursor: ~/.cursor/mcp.json or .cursor/mcp.json
• VS Code: .vscode/mcp.json (use "servers" instead of "mcpServers")
• Windsurf: ~/.codeium/windsurf/mcp_config.json
• OpenCode: opencode.json ("mcp" block with "type": "remote")

Authentication

Codex

Authenticate the bundled FluxBuilder MCP server:

codex mcp login fluxbuilder

Log out when you need to remove the saved OAuth session:

codex mcp logout fluxbuilder

Claude Code

Run /mcp inside a Claude Code session, select fluxbuilder, and follow the OAuth flow in your browser. Use the same menu to clear the saved session.

Other clients

Clients supporting the MCP OAuth spec (Cursor, VS Code, …) open the browser flow automatically on first connection.

What You Can Do

• Open and manage your FluxBuilder projects, or create new apps from your store credentials (WooCommerce, Shopify, and more).
• Redesign screens, widgets, and layouts; find, upload, and set images; and update app feature settings.
• Search your live store catalog (products, categories, blogs) and capture mobile preview screenshots.
• Run free test builds emailed to your account, then configure signing and run signed release builds for the App Store, Google Play, and web (PWA).
• Subscribe a project to the Basic or Professional plan through a secure checkout link.
• Search the official FluxBuilder documentation for setup and capability questions.

Plugin Layout

• .codex-plugin/plugin.json contains the Codex plugin manifest and install-surface metadata.
• .claude-plugin/plugin.json contains the Claude Code plugin manifest.
• .claude-plugin/marketplace.json exposes the plugin through the InspireUI Claude Code marketplace.
• .mcp.json registers the bundled FluxBuilder MCP server (shared by Codex and Claude Code).
• assets/ contains the icon and logo referenced by the manifest.
• .agents/plugins/marketplace.json exposes the plugin through the InspireUI Codex marketplace.

MCP Server

This plugin registers the fluxbuilder MCP server at https://ai.fluxbuilder.com/mcp.

Authentication happens through OAuth (on install for Codex, via /mcp for Claude Code). The server derives your account from the OAuth session — credentials are never shared in chat.

Available Tools

Category	Tools
Account	whoami
Projects	list_projects, open_project, create_project, list_platforms, subscribe_project
Design	overview, list_schemas, inspect, lookup, create, update, replace, remove, move
Images	resolve_assets, upload_image
Store data	catalog_search
Preview	capture
App settings	search_feature, read_feature, write_feature
Builds	build_test, get_build_setup, set_build_setup, generate_signing, get_android_keys, build_cloud, stop_build
Docs	docs_search

Links

• Website: fluxbuilder.com
• Documentation: docs.fluxbuilder.com
• Support: support.fluxbuilder.com
• Company: inspireui.com