Answers to the questions we hear on every Alher Tech discovery call about using Claude Code on real client work. No marketing, just what we have observed on the job.
Updated: April 24, 2026
Claude Code runs on Claude Opus 4.7 by default, needs Node 18+, and costs either a Claude Pro/Team subscription or pay-as-you-go API credits. Your code stays local unless you explicitly push; Anthropic does not train on your repo.
Yes, you can use Claude Code on billable client work. Put the subscription on the agency account, pass the API cost through as a pass-through line on the invoice, and use hooks plus CLAUDE.md to codify each client's conventions in their repo.
Opus 4.7 is SOC 2 Type II, HIPAA-eligible on the enterprise plan and GDPR-compliant. For regulated industries we pair Claude Code with a private-cloud deployment via Amazon Bedrock or Google Vertex AI.
No, the model runs in Anthropic's cloud. For air-gapped environments, consider a Bedrock deployment within your VPC.
Yes. It is actually where the 1M-token context shines. Combine with a project-level CLAUDE.md per workspace for best results.