Constellation Gate AI

Gate, by Constellation Network, is an intermediary gateway between AI agents and language models, providing security, cost reduction, and activity monitoring for AI tool usage. It blocks prompt injection attacks with a 95.4% detection rate and redacts sensitive data like credentials and PII before responses return, while compressing requests to remove duplicate content for 20%+ fewer tokens per request through cache-aware optimization. Gate creates auditable records of every request — time, what happened, model used, tokens billed, and cost — and works with existing subscriptions like Claude Code and Codex without requiring code changes or new accounts. Spend controls enforce caps and rate limits per key, agent, or workspace, and requests route through providers including Anthropic, OpenAI, and Gemini alongside hundreds of additional models. A free tier requires no credit card, with pay-as-you-go top-ups priced at provider rates.