Reference Data Mcp Server

A Swiss Army knife for reference lookups that saves you from opening a dozen browser tabs. Wraps ten tools covering countries (with ISO codes, capitals, currencies, timezones), IANA timezone conversions with DST handling, all 118 periodic elements with full IUPAC properties, CODATA 2022 physical constants, unit conversions across 11 domains, HTTP status code details with RFC citations, and MIME type resolution. Useful when you're writing documentation, validating API responses, building forms with country dropdowns, or just need to convert 42 kilometers per hour to meters per second without context switching. Data comes from PubChem, IANA, and CODATA 2022. Available over stdio or streamable HTTP at reference-data.caseyjhand.com/mcp.