ChatGPT Plugin Development Cheat Sheet

Last Updated: November 21, 2025

Manifest Essentials

Field Purpose
schema_version Plugin manifest format
auth Define key-based or oauth authentication
api OpenAPI spec + server endpoints

Security Checklist

Validate user input, enforce CORS + rate limits, and ensure service credentials rotate regularly.

Developer Flow

npm run dev -- --port 3333
Run plugin server locally
curl https://example.com/.well-known/ai-plugin.json
Verify manifest is reachable
openai plugins deploy
Submit for review if needed
💡 Pro Tip: Serve plugin metadata over HTTPS and verify schema before publishing.
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