How to integrate Nasa MCP with Codex

Codex is one of the most popular coding harnesses out there. And MCP makes the experience even better. With Nasa MCP integration, you can draft, triage, summarise emails, and much more, all without leaving the terminal or app, whichever you prefer.

Composio removes the Authentication handling completely from you. We handle the entire integration lifecycle, and all you need to do is just copy the URL below, authenticate inside Codex, and start using it.

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 Nasa MCP in Codex

Codex CLI

Run the command in your terminal.

This will auto-redirect you to the Rube authentication page.

Once you're authenticated, you will be able to access the tools.

Verify the installation by running:

codex mcp list

If you otherwise prefer to use config.toml, add the following URL to it. You can get the bearer token from rube.app → Use Rube → MCP URL → Generate token

[projects."/home/user/composio"]
trust_level = "untrusted"

[mcp_servers.rube]
bearer_token_env_var = "your bearer token"
enabled = true
url = "https://rube.app/mcp"

Codex in VS Code

If you have installed Codex in VS Code.

Then: ⚙️ → MCP Settings → + Add servers → Streamable HTTP:

Add the Rube MCP URL: https://rube.app/mcp and the bearer token.

To verify, click on the Open config.toml

Make sure it's there:

[mcp_servers.composio_rube]
bearer_token_env_var = "your bearer token"
enabled = true
url = "https://rube.app/mcp"

Codex App

Codex App follows the same approach as VS Code.

1. Click ⚙️ on the bottom left → MCP Servers → + Add servers → Streamable HTTP:

2. Restart and verify if it's there in .codex/config.toml

[mcp_servers.composio_rube]
bearer_token_env_var = "your bearer token"
enabled = true
url = "https://rube.app/mcp"

3. Save, restart the extension, and start working.

The Nasa MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to NASA's public data APIs. It provides structured and secure access to a wealth of Earth science, planetary, and event data, so your agent can search datasets, fetch Mars rover photos, explore natural events, and visualize scientific information on your behalf.

• Search NASA science data collections: Empower your agent to query and filter massive datasets from the Common Metadata Repository (CMR) by spatial, temporal, or metadata criteria.
• Retrieve Mars rover imagery: Ask your agent to fetch stunning photos captured by Mars rovers for specific Martian days, enabling research and exploration right from your workflow.
• Monitor natural events worldwide: Let your agent pull up-to-date lists of global natural events—like wildfires, storms, or volcanic activity—using NASA's EONET feeds in ATOM or RSS formats.
• Visualize and analyze event categories and layers: Direct your agent to explore available data layers and event categories for advanced event visualization and filtering in scientific research.
• Access detailed event source and magnitude data: Have your agent retrieve metadata about event sources and magnitudes, making it easier to understand the context and scale of natural phenomena tracked by NASA.

Conclusion

You've successfully integrated Nasa with Codex using Composio's Rube MCP server. Now you can interact with Nasa 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 Nasa operations
• Managed authentication through Composio's Rube
• 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 Nasa operations
• Explore cross-app workflows by connecting more toolkits
• Build automation scripts that leverage Codex's AI capabilities