Api

Gives Claude five focused HTTP utilities: making requests with full header and auth control, parallel health checks across multiple endpoints with SSL validation, JWT decoding without verification, URL parsing and building, and security header analysis with letter grading. The header analyzer is especially handy when you're auditing HSTS, CSP, CORS configs, and cookie attributes. Reach for this when you need Claude to test APIs, debug authentication tokens, or assess endpoint security posture. All tools return structured data with timing info, making it straightforward to chain operations or build monitoring workflows. Works over stdio, so it runs locally without external dependencies beyond Node.