.env. No signup form, and your coding agent can run it for you.
1. Add Channel3
Install the Stripe CLI and the Stripe Projects plugin, then run:.env as CHANNEL3_API_KEY. Run stripe projects env to check it.
You get 1,000 free credits each month.
2. Search for products
3. Open your dashboard
Manage your key
Rotate it. The new key is written to.env and the old one stops working:
Pay as you go
When you run out of free credits, requests return402. Upgrade to keep going: