How to install IBM Granite via x402 in Codex

To install IBM Granite via x402 in Codex, run "codex mcp add ibm-granite-via-x402 --env MCP_SVM_PAYMENT_ADDRESS=YOUR_MCP_SVM_PAYMENT_ADDRESS --env WATSONX_API_KEY=YOUR_WATSONX_API_KEY -- npx -y @three-ws/ibm-x402-mcp" in your terminal, then type /mcp in Codex to check it.

Built from the published package · server updated 3 days ago

Run the install command

In a terminal, run:

codex mcp add ibm-granite-via-x402 --env MCP_SVM_PAYMENT_ADDRESS=YOUR_MCP_SVM_PAYMENT_ADDRESS --env WATSONX_API_KEY=YOUR_WATSONX_API_KEY -- npx -y @three-ws/ibm-x402-mcp

2
Check it
Inside Codex, type /mcp to see the server and its tools.

MCP servers run with your permissions. If IBM Granite via x402 needs an API key, add it under env in the config. Check its README.

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Questions

Does IBM Granite via x402 work in Codex?

Yes. Codex supports mcp servers in the codex cli and ide extension, and IBM Granite via x402 installs with the steps above.

IBM Granite via x402 does not show up in Codex. What now?

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

Is IBM Granite via x402 safe?

It scores 82 of 100. Review the code before you install it, and only give it the access it needs. Grades and details.