Show HN: TokenShield – Local proxy that dedupes Claude Code conversation traffic

Category: devtools

Tags: proxy, anthropic, cost-optimization

Score: 7.0/10 (Innovation: 6, Technical: 7, Documentation: 8, Utility: 7)

TokenShield is a local proxy that sits between Claude Code and the Anthropic API to deduplicate repeated tool results and cache deterministic responses, cutting token usage by 40-70%. It is interesting because it directly addresses a major cost pain point for heavy Claude Code users with a practical, non-invasive solution that preserves privacy and works with existing workflows.

Target audience: backend devs, devops, ai engineers

Repository: https://www.npmjs.com/package/@curatedmcp/tokenshield · TypeScript · MIT

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