Countries, timezones, elements, constants, HTTP status codes, unit conversion, and MIME type lookup.
Connect Remote server
claude mcp add --transport http reference-data-mcp-server https://reference-data.caseyjhand.com/mcp{
"mcpServers": {
"reference-data-mcp-server": {
"url": "https://reference-data.caseyjhand.com/mcp"
}
}
}{
"servers": {
"reference-data-mcp-server": {
"type": "http",
"url": "https://reference-data.caseyjhand.com/mcp"
}
}
}Settings > Connectors > Add custom connector
URL: https://reference-data.caseyjhand.com/mcpTools 10 found in our last check
ref_geo_lookupLook up a country by name, ISO alpha-2 code (2 letters), or ISO alpha-3 code (3 letters). Returns the full record: capital, region, official languages, currencies, calling codes, TLD, flag emoji, and IANA timezone IDs. Accepts fuzzy name matching — "Brasil" and "Brazil" both res…
ref_geo_searchSearch and filter countries by region, subregion, language, currency, or free-text keyword. At least one filter is required. Returns a ranked list of matching country summaries. Use ref_geo_lookup to get the full record for a specific result.
ref_timezone_lookupGet timezone info by IANA ID, country code, or partial city/region name. Returns current UTC offset, standard offset, whether DST is currently active, and major cities in the timezone. When querying by country code (ISO alpha-2), returns all timezones observed in that country. A…
ref_timezone_convertConvert a local datetime from one timezone to another. Takes a local time string (no UTC offset, e.g., "2026-05-24T15:30:00") interpreted as local time in the source timezone, returns the equivalent local time in the target timezone. Shows both UTC offsets so DST transitions are…
ref_element_lookupLook up a periodic table element by name, chemical symbol, or atomic number. Returns the full data record: atomic number, symbol, name, atomic mass (in unified atomic mass units), electron configuration, group, period, block, category (e.g., "noble gas", "transition metal"), Pau…
ref_element_searchFilter periodic table elements by category, group, period, atomic number range, or atomic mass range. At least one filter is required. Returns matching elements as a summary list. Use ref_element_lookup for the full record on a specific element. Valid categories: alkali metal, a…
ref_constant_lookupLook up a fundamental physical constant by name, symbol, or common alias. Returns the CODATA 2022 value, SI unit expression, relative standard uncertainty, and a short description. Recognizes common names and symbols — "speed of light", "c", "Avogadro's number", "N_A", "Planck",…
ref_unit_convertConvert a numeric value between compatible units of measure. Supports: length (mm, cm, m, km, in, ft, yd, mi), mass (mcg, mg, g, kg, oz, lb, mt = metric tonne / 1000 kg, t = US short ton / 907.18 kg), volume (ml, cl, dl, l, kl, tsp, Tbs, fl-oz, cup, pnt, qt, gal, m3), temperatur…
ref_http_statusLook up an HTTP status code by number or keyword. Returns the reason phrase, description, category (1xx Informational, 2xx Success, 3xx Redirection, 4xx Client Error, 5xx Server Error), whether the code is cacheable by default, and the defining RFC with section reference. For ke…
ref_mime_typeLook up a MIME type by type string or file extension. Accepts "image/webp", ".webp", or "webp". Returns the canonical MIME type, known file extensions, whether the type is compressible (relevant for Content-Encoding decisions), and the data source (iana, apache, nginx). For exte…
Details
| Endpoint | https://reference-data.caseyjhand.com/mcp (Streamable HTTP) |
| Package | @cyanheads/[email protected] (NPM, stdio) |
| Package | @cyanheads/[email protected] (NPM, streamable-http) |
| First published | 28 Oct 2026 |
| Last updated | 28 Oct 2026 |
| Registry name | io.github.cyanheads/reference-data-mcp-server |
More search and web servers See all
Listing data from the official MCP registry. Status and tools from NestDaddy's daily check. Browse all MCP servers.