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Start here
Codex CLI MCP Setup: From Zero to Connected
Install your first MCP server, verify the connection and understand where Codex stores its configuration.
Complete learning library
Codex CLI MCP Guides
Practical walkthroughs for server setup, integrations, troubleshooting, configuration and safer tool access.
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Start here
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Popular integration
Connect GitHub MCP to Codex CLI
Give Codex structured access to issues, pull requests and repository workflows with a tightly scoped GitHub connection.
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Design workflow
Figma MCP with Codex: Design-to-Code Workflow
Connect structured design context to Codex and turn selected Figma frames into more faithful implementation plans.
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MCP server
Browser Automation with Playwright MCP
Let Codex inspect rendered pages, exercise interactions and collect browser evidence while keeping actions controlled.
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Troubleshooting
Fix MCP Connection and Tool Discovery Errors
Diagnose startup failures, empty tool lists, authentication problems and configuration mistakes in the right order.
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Security essential
Codex MCP Security: Least-Privilege Checklist
Build a safer MCP setup with narrow tool access, protected secrets and clear approval boundaries.