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The Bitfab Codex plugin is coming soon. In the meantime, you can connect Codex to Bitfab via MCP for SDK setup and API key retrieval.

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What’s Coming

The dedicated Codex plugin will bring the full Bitfab evaluation workflow into Codex, including:
  • Automatic instrumentation — Detect AI workflows in your codebase and add tracing with minimal diffs
  • Trace diagnostics — Inspect failures, search traces, and read full span details without leaving your terminal
  • Replay testing — Generate and run replay scripts to regression-test against production data
  • Session notifications — Get alerted to trace failures and plugin updates on session start

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Use Bitfab with Codex Today

While the plugin is in development, you can connect Codex to Bitfab’s MCP server for SDK setup assistance and API key retrieval. Set your API key as an environment variable: 
export BITFAB_API_KEY="YOUR_API_KEY"
Then add this to ~/.codex/config.toml (global) or .codex/config.toml (project-level): 
[mcp_servers.bitfab]
url = "https://bitfab.ai/mcp"
bearer_token_env_var = "BITFAB_API_KEY"
Visit the setup page to get your API key and see the full configuration steps.
This gives Codex access to two MCP tools:
  • setup_bitfab — Get a language-specific SDK setup guide with correct API usage and code examples
  • get_bitfab_api_key — Retrieve your API key for environment variable configuration
See the MCP Setup guide for more details.

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Stay Updated

The Codex plugin is under active development. Check back here or visit bitfab.ai for announcements.