Codex is one of the most popular coding harnesses out there. And MCP makes the experience even better. With New relic 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 New relic without Auth hassles
We manage OAuth, API Key, token refresh, and scopes, you just build.
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Also integrate New relic with
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 New relic 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 connect.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 New relic MCP server, and what's possible with it?
The New Relic MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your New Relic account. It provides structured and secure access to your observability data and alerting infrastructure, so your agent can perform actions like retrieving application metrics, managing alert policies, updating notification channels, and monitoring browser applications on your behalf.
- Comprehensive alert policy management: Effortlessly create, update, or delete New Relic alert policies to keep your monitoring rules current and effective.
- Alert notification channel control: Register new alert endpoints, update existing channels, or list all notification channels to optimize how your team receives important alerts.
- Real-time application monitoring: Instantly retrieve a list of all monitored applications, filter them by name or host, and stay on top of your software stack’s health.
- Browser application insights: List and filter browser applications to monitor user experience and catch frontend issues before they escalate.
- Alert condition visibility: Fetch detailed alert conditions for specific policies, so you can audit or fine-tune how your system responds to incidents.
Supported Tools & Triggers
Conclusion
You've successfully integrated New relic with Codex using Composio's MCP server. Now you can interact with New relic 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 New relic 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 New relic operations
- Explore cross-app workflows by connecting more toolkits
- Build automation scripts that leverage Codex's AI capabilities










