Codex is one of the most popular coding harnesses out there. And MCP makes the experience even better. With Bolt iot MCP integration, you can draft, triage, summarise emails, and much more, all without leaving the terminal or the app, whichever you prefer.
Table of Contents
Connect Bolt iot without Auth hassles
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Why use Composio?
Apart from a managed and hosted MCP server, you will get:
- CodeAct: A dedicated workbench that allows GPT to write its code to handle complex tool chaining. Reduces to-and-fro with LLMs for frequent tool calling.
- Large tool responses: Handle them to minimise context rot.
- Dynamic just-in-time access to 20,000 tools across 870+ other Apps for cross-app workflows. It loads the tools you need, so GPTs aren't overwhelmed by tools you don't need.
How to install Bolt iot MCP in Codex
Run the setup command
Run this command in your terminal to add the Composio MCP server to Codex.
It will initiate the authentication in a browser window, authorize Codex to access your Composio account.
(Optional) Authenticate with OAuth
To authenticate manually, run the login command to open a browser window and authorize Codex to access your Composio account.
Verify the connection
Run codex mcp list to confirm Composio appears as a registered MCP server.
Codex App
Codex App follows the same approach as VS Code.
- Click ⚙️ on the bottom left → MCP Servers → + Add servers → Streamable HTTP:
- Fill the header and Key fields with
{ "x-consumer-api-key" = "ck_*******" }. - The Key is the Composio API key, that you can find on dashboard.composio.dev
- Click on Authenticate and authorize Codex to your Composio account and you're all set.
- Restart and verify if it's there in
.codex/config.toml
What is the Bolt iot MCP server, and what's possible with it?
The Bolt iot MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Bolt IoT account. It provides structured and secure access to your connected IoT devices, so your agent can perform actions like reading sensor values, controlling actuators, checking device status, and managing UART communication on your behalf.
- Real-time sensor data collection: Instantly retrieve analog sensor readings from any Bolt device for monitoring temperature, light, or other parameters.
- Remote device control: Command your agent to switch actuators, toggle LEDs, or send digital signals to devices using digital write operations.
- Device connectivity monitoring: Check if a specific Bolt IoT device is online before performing operations or troubleshooting connectivity issues automatically.
- Serial communication management: Read incoming serial data or transmit ASCII commands over UART to interact with other hardware modules connected to your Bolt device.
- Bidirectional UART automation: Send serial commands and immediately capture device responses in one seamless step, enabling complex automation workflows.
Supported Tools & Triggers
Conclusion
You've successfully integrated Bolt iot with Codex using Composio's MCP server. Now you can interact with Bolt iot directly from your terminal, VS Code, or the Codex App using natural language commands.
Key benefits of this setup:
- Seamless integration across CLI, VS Code, and standalone app
- Natural language commands for Bolt iot operations
- Managed authentication through Composio
- Access to 20,000+ tools across 870+ apps for cross-app workflows
- CodeAct workbench for complex tool chaining
Next steps:
- Try asking Codex to perform various Bolt iot operations
- Explore cross-app workflows by connecting more toolkits
- Build automation scripts that leverage Codex's AI capabilities










