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Open AI Codex · Integration Guide

Milestone integrates with OpenAI Codex using an Admin API key. Only organization administrators can create and manage these keys.

  1. Go to platform.openai.com/settings/organization/admin-keys.
  2. Click "Create new admin key".
  3. Give the key a descriptive name (e.g., "Milestone Integration").
  4. Copy the generated key immediately — you won't be able to view it again.
  5. Enter the key in the Admin API Key field to finish the integration.