io.github.cyanheads/reference-data-mcp-server · v0.1.17 · marketing-and-seo
io.github.cyanheads/reference-data-mcp-server is healthy: it completed an MCP handshake in 1792 ms and exposes 10 tools. It scores 59/100.
Countries, timezones, elements, constants, HTTP status codes, unit conversion, and MIME type lookup.
Endpoint: https://reference-data.caseyjhand.com/mcp (streamable-http)
Repository · JSON · Add to my inventory
| health | 18.8 / 25 |
| authEase | 15 / 15 |
| toolQuality | 15 / 15 |
| maintenance | 7 / 15 |
| adoption | 0 / 10 |
| usage | 0 / 10 |
| security | 8 / 10 |
| penalties | −5 |
Scoring v0.3, computed 2026-10-15T03:26:01.239Z.
| Checked (UTC) | Status | Latency | Error |
|---|---|---|---|
| 2026-10-15T03:25:46.992Z | Healthy | 1792 |
ref_geo_lookup | Look 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 resolve. |
ref_geo_search | Search 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_lookup | Get 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. Accepts partial matche |
ref_timezone_convert | Convert 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 visible. Accepts ful |
ref_element_lookup | Look 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"), Pauling electronegativit |
ref_element_search | Filter 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, alkaline earth metal, |
ref_constant_lookup | Look 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", "h", "Boltzmann", "k |
ref_unit_convert | Convert 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), temperature (C, F, K, R — non-l |
ref_http_status | Look 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 keyword queries, return |
ref_mime_type | Look 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 extension lookups, return |