What is API Key?
A secret password that lets your app use an outside service.
Why it matters when you're building
Treat it like a house key — never paste it in public. Leaked keys are the most common way small apps get hacked or run up bills.
A secret password that lets your app use an outside service.
Treat it like a house key — never paste it in public. Leaked keys are the most common way small apps get hacked or run up bills.