How to install Polygraph MCP in Codex

To install Polygraph MCP in Codex, run "codex mcp add polygraph-mcp -- npx -y @polygraph/mcp" in your terminal, then type /mcp in Codex to check it.

Built from the published package · server updated 1 month ago

Run the install command

In a terminal, run:

codex mcp add polygraph-mcp -- npx -y @polygraph/mcp

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

Mock, record/replay, verify and chaos-test any HTTP, REST, gRPC or LLM dependency over MCP.

XcodeBuildMCP provides tools for Xcode project management, simulator management, and app utilities.

Codebase intelligence for AI coding agents — graph, git history, docs, decisions, code health.

Does Polygraph MCP work in Codex?

Yes. Codex supports mcp servers in the codex cli and ide extension, and Polygraph MCP installs with the steps above.

Polygraph MCP 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 Polygraph MCP safe?

It scores 58 of 100. Review the code before you install it, and only give it the access it needs. Grades and details.