This free practice platform helps candidates prepare for the Claude Certified Developer – Foundations (CCDV-F) exam, Anthropic's hands-on builder credential for engineers who build applications on the Claude API. It covers applications and integration, model selection and optimization, agents and workflows, prompt and context engineering, tools and MCPs, security and safety, Claude Code, and evaluation/testing/debugging, through 42 scenario-based practice questions weighted to match the official exam blueprint across all 8 domains. Candidates can take 2 timed, mixed-domain mock drills with scoring out of 1000 and full explanations after every attempt, as a warm-up before the full 53-question real exam. Built and maintained by Isha Training Solutions. This is an independent, unofficial resource and is not affiliated with, endorsed by, or sponsored by Anthropic.