How to install X402 MCP in Gemini CLI

Gemini CLI was replaced by Antigravity CLI in June 2026. On an enterprise licence or paid API key you can still install X402 MCP by running "gemini mcp add x402-mcp npx -y @x402/mcp", then type /mcp to check it.

Built from the published package · server updated 6 days ago

1
Run the install command
In a terminal, run:
```
gemini mcp add x402-mcp npx -y @x402/mcp
```
2
Check it
Inside Gemini CLI, type /mcp to list servers and tools.

MCP servers run with your permissions. If X402 MCP needs an API key, add it under env in the config. Check its README.

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Questions

Does X402 MCP work in Gemini CLI?

Yes. Gemini CLI supports local and remote mcp servers, extensions (legacy), and X402 MCP installs with the steps above.

X402 MCP does not show up in Gemini CLI. What now?

Restart Gemini CLI fully, check the JSON is valid, and make sure Node.js (for npx) is installed. See common MCP errors and fixes.

Is X402 MCP safe?

It scores 91 of 100. Review the code before you install it, and only give it the access it needs. Grades and details.

Run the install command

Check it

Install X402 MCP in another app

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Questions