Access to Claude models (Haiku, Sonnet, Opus) for text generation, analysis, and structured output.
Quick Setup
- Go to console.anthropic.com and create an account
- Navigate to API Keys in the left sidebar
- Click Create Key and give it a descriptive name
- Copy the key immediately -- it won't be shown again
Configuration Notes
- Free tier: $5 credit on signup, enough for weeks of light usage
- Pricing: Pay-as-you-go with no minimum spend. Haiku 4.5 runs at $1/$5 per million input/output tokens. Sonnet 4.5 at $3/$15.
- Most nxsi.io projects use Haiku 4.5 for batch/repetitive work and Sonnet 4.5 for synthesis tasks. Typical daily cost for an automated pipeline is $0.05-0.15.
- Store the key in an environment variable (
ANTHROPIC_API_KEY). Never commit it to version control.