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Install Codex in VS Code by opening the Extensions Marketplace, searching for "Codex - OpenAI", and clicking Install.
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After installation click on the Codex icon and start a new chat session
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Click the gear icon, and select Codex Settings
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Select MCP servers → Add server.
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Add Details
a) Name: OneTick-Cloud
b) Type: Streamable HTTP
c) URL: https://mcp.cloud.onetick.com/mcp
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Save, then restart the extension.
