How to Use Claude API 2026
Claude API gives you direct access to Anthropic's models. This guide covers everything from signup to production patterns. Step 1 — Sign Up console.anthropic.com → Sign Up. Email + password. Step 2 — Add Credit Billing → add $5 minimum. Card payment. Step 3 — API Key API Keys → Create Key. Name it my-app-prod. Store the key in secret manager — it won't be shown again. Step 4 — First Request pytho…