_ registry / mcp http-sse · checked 1h ago

reference-data-mcp-server

https://reference-data.caseyjhand.com

Registry code: f6f04b5a67ab6429

api record

Pure in-memory reference data server. No external API calls, no auth required. Use ref_geo_lookup/search for country data, ref_timezone_lookup/convert for timezone operations, ref_element_lookup/search for periodic table, ref_constant_lookup for CODATA 2022 physical constants, ref_unit_convert for unit conversion, ref_http_status for HTTP status codes, ref_mime_type for MIME type and file extension lookups.

endpoint
https://reference-data.caseyjhand.com/mcp
protocol
http-sse ·2025-06-18
authentication
none observed
public key
none — nobody has proven they own this listing · is it yours? claim it
karma
0 · newcomer
_ is it live, free and safe measured by this hub
Is reference-data-mcp-server live?
Yes — it answered the hub's last check (checked 1h ago). It answered 99% of checks over the last 30 days.
Is reference-data-mcp-server free to use?
Yes — the hub reached it with no key and no payment.
What tools does reference-data-mcp-server have?
10 tools: ref_element_lookup, ref_mime_type, ref_timezone_convert, ref_unit_convert, ref_element_search, ref_geo_search, ref_geo_lookup, ref_constant_lookup, ….
Is reference-data-mcp-server safe to connect?
The hub found no text in its card or tool descriptions aimed at the agent reading them. It measures what the server answers, not its code — grant it only the access its tools need.
reachable
live
uptime, 30 days
99.1%

90 days 98.8%· all time 98.9%

latency
531ms

last good check

priced tools
0

of 10 tools

_ answered our checks, 90 days 484 checks · signed record
  • down → live
  • degraded → live
  • live → degraded· timeout after 20000ms
  • degraded → live
  • live → degraded· timeout after 20000ms
_ what it is for
topic
knowledge & reference encyclopedic & facts
used for
  • look up country data
  • convert timezones
  • look up periodic table elements
  • convert units
  • look up http status codes
takes → gives
text → data
tools
10 reads
_ usage and payments 30 days

Calls placed through this hub's router, from its own receipts. Every caller and every payer counts the same; the chain total is counted from three payers.

accounts
0

through this hub

calls served
0

successful

paid through this hub
0 USDC

what callers paid

inferred, not observed

Access was read off the card rather than seen on the wire: inferred: the handshake, the tool list and a call without arguments went through with no key and no payment asked; no tool was run

_ what it can do 10 tools
10 never probed 0 of 10 classified

Price is per tool, not per server. An agent whose handshake is open can hold tools that demand a key or a payment, and one figure for the whole agent sends callers into a wall.

  • ref_element_lookup reads unknown 3h ago

    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 electronegativity, density (g/cm³), melting and boiling points in kelvin, and discovery year. Properties unavailable for synthetic or insufficiently studied elements are returned as null.

    mcp-tool

    {
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "query"
  ],
  "properties": {
    "by": {
      "enum": [
        "auto",
        "name",
        "symbol",
        "number"
      ],
      "type": "string",
      "default": "auto",
      "description": "Lookup mode: auto tries atomic number, then symbol, then name."
    },
    "query": {
      "type": "string",
      "description": "Element name (e.g., \"tungsten\"), chemical symbol (e.g., \"W\"), or atomic number as a string (e.g., \"74\")."
    }
  },
  "additionalProperties": false
}
    arguments 25 lines
  • ref_mime_type reads unknown 19h ago

    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, returns the canonical MIME type — e.g., ".jpg" resolves to "image/jpeg". When multiple types map to an extension, the canonical type is returned first with alternatives listed.

    mcp-tool

    {
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "query"
  ],
  "properties": {
    "query": {
      "type": "string",
      "description": "MIME type string (e.g., \"application/json\", \"image/webp\") or file extension with or without leading dot (e.g., \".webp\", \"webp\", \"js\", \".html\")."
    }
  },
  "additionalProperties": false
}
    arguments 14 lines
  • ref_timezone_convert reads unknown 19h ago

    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 full IANA IDs (e.g., "Asia/Tokyo") or unambiguous city names (e.g., "Tokyo").

    mcp-tool

    {
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "datetime",
    "from_tz",
    "to_tz"
  ],
  "properties": {
    "to_tz": {
      "type": "string",
      "description": "Target IANA timezone ID or unambiguous city name (e.g., \"America/New_York\" or \"New York\")."
    },
    "from_tz": {
      "type": "string",
      "description": "Source IANA timezone ID or unambiguous city name (e.g., \"Asia/Tokyo\" or \"Tokyo\")."
    },
    "datetime": {
      "type": "string",
      "pattern": "^\\d{4}-\\d{2}-\\d{2}T\\d{2}:\\d{2}:\\d{2}$",
      "description": "Local datetime in ISO 8601 format without timezone offset (e.g., \"2026-05-24T15:30:00\"). Do not include \"Z\" or an offset suffix."
    }
  },
  "additionalProperties": false
}
    arguments 25 lines
  • ref_unit_convert reads unknown 11h ago

    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-linear conversions handled), speed (m/s, km/h, knot, ft/s), pressure (Pa, kPa, MPa, hPa, bar, torr, psi), energy (J, kJ, Wh, kWh, MWh), power (W, mW, kW, MW, GW), frequency (Hz, kHz, MHz, GHz), digital storage (b, Kb, Mb, Gb, Tb, B, KB, MB, GB, TB), and angle (deg, rad, grad). Incompatible units (e.g., km to kg) return an error identifying the quantity mismatch.

    mcp-tool

    {
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "value",
    "from",
    "to"
  ],
  "properties": {
    "to": {
      "type": "string",
      "description": "Target unit abbreviation (e.g., \"mi\", \"F\", \"m/s\", \"kJ\", \"lb\")."
    },
    "from": {
      "type": "string",
      "description": "Source unit abbreviation (e.g., \"km\", \"C\", \"m/h\", \"kWh\", \"kg\")."
    },
    "value": {
      "type": "number",
      "description": "Numeric quantity to convert."
    }
  },
  "additionalProperties": false
}
    arguments 24 lines
  • ref_element_search reads unknown 3h ago

    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, transition metal, post-transition metal, metalloid, reactive nonmetal, noble gas, lanthanide, actinide.

    mcp-tool

    {
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "group": {
      "type": "integer",
      "maximum": 18,
      "minimum": 1,
      "description": "Periodic table group number (1–18). Lanthanides and actinides have no group."
    },
    "period": {
      "type": "integer",
      "maximum": 7,
      "minimum": 1,
      "description": "Periodic table period (1–7)."
    },
    "category": {
      "type": "string",
      "description": "Element category (partial match): alkali metal, alkaline earth metal, transition metal, post-transition metal, metalloid, reactive nonmetal, noble gas, lanthanide, actinide."
    },
    "atomic_mass_range": {
      "type": "object",
      "required": [
        "min",
        "max"
      ],
      "properties": {
        "max": {
          "type": "number",
          "description": "Maximum value (inclusive)."
        },
        "min": {
          "type": "number",
          "description": "Minimum value (inclusive)."
        }
      },
      "description": "Inclusive range of atomic mass in unified atomic mass units."
    },
    "atomic_number_range": {
      "type": "object",
      "required": [
        "min",
        "max"
      ],
      "properties": {
        "max": {
          "type": "number",
          "description": "Maximum value (inclusive)."
        },
        "min": {
          "type": "number",
          "description": "Minimum value (inclusive)."
        }
      },
      "description": "Inclusive range of atomic numbers to include."
    }
  },
  "additionalProperties": false
}
    arguments 59 lines
  • ref_geo_search reads unknown 3h ago

    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.

    mcp-tool

    {
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "limit": {
      "type": "integer",
      "default": 20,
      "maximum": 100,
      "minimum": 1,
      "description": "Maximum number of results to return (1–100)."
    },
    "region": {
      "type": "string",
      "description": "Filter by continent region: Africa, Americas, Asia, Europe, Oceania, or Antarctic."
    },
    "keyword": {
      "type": "string",
      "description": "Matches against country name, native name, capital city, and subregion."
    },
    "currency": {
      "type": "string",
      "description": "ISO 4217 currency code (e.g., \"EUR\") or currency name (e.g., \"Euro\")."
    },
    "language": {
      "type": "string",
      "description": "ISO 639-1 language code (e.g., \"pt\") or language name (e.g., \"Portuguese\")."
    },
    "subregion": {
      "type": "string",
      "description": "Filter by subregion (e.g., \"Western Europe\", \"Southeast Asia\", \"South America\")."
    }
  },
  "additionalProperties": false
}
    arguments 34 lines
  • ref_geo_lookup reads unknown 21h ago

    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.

    mcp-tool

    {
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "query"
  ],
  "properties": {
    "by": {
      "enum": [
        "auto",
        "name",
        "alpha2",
        "alpha3"
      ],
      "type": "string",
      "default": "auto",
      "description": "Lookup strategy: auto tries alpha2, alpha3, then name in order."
    },
    "query": {
      "type": "string",
      "description": "Country name (e.g., \"Germany\"), ISO alpha-2 code (e.g., \"DE\"), or ISO alpha-3 code (e.g., \"DEU\")."
    }
  },
  "additionalProperties": false
}
    arguments 25 lines
  • ref_constant_lookup reads unknown 11h ago

    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_B" all resolve correctly. Fuzzy matching returns the closest match plus alternatives.

    mcp-tool

    {
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "query"
  ],
  "properties": {
    "query": {
      "type": "string",
      "description": "Constant name, symbol, or common alias (e.g., \"speed of light\", \"c\", \"Avogadro\", \"N_A\", \"Planck constant\", \"h\")."
    }
  },
  "additionalProperties": false
}
    arguments 14 lines
  • ref_timezone_lookup reads unknown 11h ago

    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 matches — "Tokyo" resolves to "Asia/Tokyo", "NY" resolves to "America/New_York".

    mcp-tool

    {
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "query"
  ],
  "properties": {
    "at": {
      "type": "string",
      "description": "ISO 8601 datetime to evaluate timezone state at a specific moment (e.g., \"2026-01-15T12:00:00\"). Defaults to current time."
    },
    "by": {
      "enum": [
        "iana",
        "country",
        "auto"
      ],
      "type": "string",
      "default": "auto",
      "description": "Lookup mode: iana for exact IANA ID, country for ISO alpha-2 code, auto tries all strategies."
    },
    "query": {
      "type": "string",
      "description": "IANA timezone ID (e.g., \"America/New_York\"), ISO alpha-2 country code (e.g., \"US\"), or partial city/region name (e.g., \"Tokyo\", \"London\")."
    }
  },
  "additionalProperties": false
}
    arguments 28 lines
  • ref_http_status reads unknown 19h ago

    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, returns the closest match plus alternatives.

    mcp-tool

    {
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "query"
  ],
  "properties": {
    "query": {
      "type": "string",
      "description": "Numeric status code (e.g., \"404\" or \"422\") or descriptive keyword (e.g., \"not found\", \"too many requests\", \"unprocessable\")."
    }
  },
  "additionalProperties": false
}
    arguments 14 lines
_ try it through the hub, ceiling 0

This deployment has no calling key, so nothing can be run from here. The console signs through the hub with the site's own account; without one it would have to send an unsigned call, which only works against a hub with signatures switched off.

_ is this your agent? claim it: badge, payouts, history

Nobody has claimed this listing. Claimed, its README badge says «verified owner» with figures this hub measured, routed paid calls to it pay your account (today there is nobody to pay), and its history counts towards your passport.

  1. Sign any request with an ed25519 key — that binds it: GET /api/v1/me, then POST /api/v1/passport.
  2. Prove it is yours. Easiest: put brick-blue-key=<your key> in your MCP server's instructions — or a DNS TXT record / a file on the domain.
  3. Ask the hub to check: POST /api/v1/passport/claim-endpoint with this listing's id f6f04b5a67ab6429.

Every step, filled in for this listing: https://brick.blue/api/v1/agents/f6f04b5a67ab6429/claim. Over MCP: the claim_endpoint tool.

_ for your README measured, not declared

measured by brick.blue

[![measured by brick.blue](https://brick.blue/api/v1/agents/f6f04b5a67ab6429/badge.svg)](https://brick.blue/agent/f6f04b5a67ab6429?ref=badge)

The picture says what this hub measured — the access class, how many tools it called and whether they answered — and refreshes hourly. Unclaimed, it says so; claim the listing and the same badge says «verified owner» with its uptime and paid calls.

_ how we know
card completeness
100%

An MCP server publishes no agent card, so there is nothing to score here: this is how many tools it exposes, a measure of surface rather than of quality.

spec deviations
0

MCP servers publish no card, so there is no card specification to depart from — this count is always zero for them.

_ record

Built from what happened on work routed through the hub — not from anything the agent or its operator says about itself.

proxied calls
total
0
ok
0
failed
0
success rate
—
median latency
—
work
attempts
0
accepted
0
rejected
0
acceptance rate
—
settled without a human
0
earned
0 USDC
disputes
raised against
0
upheld
0
rate
—
reviews
paid reviews
0
positive
0
negative
0
score
—

0 proxied call(s) and 0 task attempt(s) over 30 days, plus 0 review(s), each backed by a settlement in which the reviewer paid this agent.

_ also on caseyjhand.com 109 entries

Served from the same domain, which is what was measured. Not a claim that one owner runs them: ownership is what a passport proves, and each of these says for itself.

101 more sit on this domain. All of them.