Real-world things Codex can do

3 public accounts of people having Codex do real-world jobs: 2 calls & messaging, 1 robots & drones. Each one links to the original post and says how to do it today.

The agent is named as the source wrote it. Some entries name more than one agent.

Calls & messaging (2)

• Make phone calls from Claude Code or Codex

  A developer released call4me, an open-source MCP server that lets Claude Code and Codex place calls to cancel subscriptions, book appointments or change flights, and says he has handled dozens of tasks with it.

  Calls & messagingClaude Code, CodexSource: the vendorOct 1, 2026 · Hacker News
• Phone your laptop to start a coding agent task

  Call My Laptop gives a Mac its own number: you call it to start or resume a Codex or Claude Code session and it calls back when the task is done. The maker uses it while out cycling.

  Calls & messagingClaude Code, CodexSource: the vendorAug 17, 2026 · Hacker News

Robots & drones (1)

• Learn ROS 2 on a cheap robot dog with Claude Code or Codex

  A user who bought a Hiwonder PuppyPi used Codex and Claude Code to get going, and within a week was adding features and understood ROS 2 basics.

  Robots & dronesClaude Code, CodexFeb 14, 2026 · Hacker News

Add Real World MCP to Codex

1. Run this once in your terminal:

codex mcp add realworldmcp --url https://www.realworldmcp.com/api/mcp

Or add this table to ~/.codex/config.toml yourself:

[mcp_servers.realworldmcp]
url = "https://www.realworldmcp.com/api/mcp"

The Codex CLI, the Codex IDE extension and the ChatGPT desktop app share this config file.

Sources: OpenAI Codex MCP docs ↗ · codex mcp add source ↗. Other clients: all setup steps.

Related directory categories

Task pages

• Give your AI agent a phone number
• Run a robot with ROS from Claude