mcp server
Meltema Weather
Multi-model weather forecasts: point series, model scoreboard, and gridded fields. No auth.
Description as published by the maintainer. Source
- version 1.0.0
- active
active — Registry entry last updated 2026-07-23.
What this server can do
The endpoint published in the registry did not answer (TimeoutError: request timed out). The listing points at a server that is not running. The functions below are the last successful declaration, not a fresh answer.
Endpoint status observed on . Source: https://meltema.com/mcp.
5 functions, named and described by the server itself. Parameter names are shown because they say more about what a function does than its name usually does.
compare_models(lat, lon, sources, variable, init_time)- Sample one variable at a point across many models and summarize per-time cross-model spread (min/max/mean/spread). Sources default to every live source carrying the variable; pass a comma-separated `sources` to pin the set. Canonical variable ids: t2m = 2 m air temperature (K), u10 = 10 m U wind component (m/s), v10 = 10 m V wind component (m/s), wind_speed = 10 m wind speed, derived hypot(u10, v10) (m/s), tp = total precipitation over the step (kg m-2, mm-equivalent), tcc = total cloud cover (fraction 0-1), ssrd = surface downward shortwave radiation (W m-2), msl = mean sea level pressure (Pa) (availability varies by source — see GET /v1/sources). Common aliases are accepted case-insensitively and normalized to these ids: temperature/temperature_2m/temp -> t2m, wind/windspeed/wind_speed_10m -> wind_speed, u10m/v10m -> u10/v10, precip/precipitation/rain -> tp, cloud/clouds/cloud_cover -> tcc, solar/radiation/shortwave -> ssrd, pressure/mslp/sea_level_pressure -> msl. The output series always carries the canonical id. Required: lat, lon, variable.
describe_grid(variable, init_time, source_id)- Geometry (grid spec + available leads + units) of a gridded field, plus the exact /v1/grid URL and the recipe to decode the raw uint16 bytes. Omit init_time for the latest run. Required: source_id.
list_runs(source_id)- Stored run init times for a source, newest first (UTC ISO 8601). Pass one to pin a tool to that run. Required: source_id.
list_sources- Every public forecast source with live-data status, servable variables, cadence and licensing attribution. This is the live enum of `source_id` accepted by the other tools.
point_forecast(lat, lon, init_time, source_id, variables)- Full forecast horizon of one model at a single point (bilinear grid sample). source_id is OPTIONAL: omit it and a sensible live source is chosen (prefers gfs, then ifs_open) and returned as `source_id`. Omit init_time for the latest run; omit variables for all stored variables plus derived wind_speed. Canonical variable ids: t2m = 2 m air temperature (K), u10 = 10 m U wind component (m/s), v10 = 10 m V wind component (m/s), wind_speed = 10 m wind speed, derived hypot(u10, v10) (m/s), tp = total precipitation over the step (kg m-2, mm-equivalent), tcc = total cloud cover (fraction 0-1), ssrd = surface downward shortwave radiation (W m-2), msl = mean sea level pressure (Pa) (availability varies by source — see GET /v1/sources). Common aliases are accepted case-insensitively and normalized to these ids: temperature/temperature_2m/temp -> t2m, wind/windspeed/wind_speed_10m -> wind_speed, u10m/v10m -> u10/v10, precip/precipitation/rain -> tp, cloud/clouds/cloud_cover -> tcc, solar/radiation/shortwave -> ssrd, pressure/mslp/sea_level_pressure -> msl. The output series always carries the canonical id. Required: lat, lon.
Last successful function declaration observed on . Source: https://meltema.com/mcp. We list what the server declared; we do not call any of these functions.
Signals
These are separate measurements of different things. They are deliberately not combined into one score, because a popularity number that mixes website traffic with saves and stars cannot be checked or acted on.
| Signal | Value | What it measures | Window | Observed | Source |
|---|---|---|---|---|---|
| Latest published version | 1.0.0 | Latest version string the maintainer published to the registry. | as of fetch | Model Context Protocol | |
| Registry record last updated | 2026-07-23 | When the registry record was last updated by its maintainer. | point in time | Model Context Protocol | |
| First listed in the MCP Registry | 2026-07-23 | Date this server was first published to the official MCP Registry. Not a usage or quality measure. | point in time | Model Context Protocol | |
| mcp tools declared | 5 tools | Number of functions the server itself declared when asked to list them. This is what the server offers an agent, not a measure of how well any of them work. | as of probe | meltema.com | |
| mcp endpoint status | unreachable | The endpoint published in the registry did not answer (TimeoutError: request timed out). The listing points at a server that is not running. | as of probe | meltema.com |
Where to get it
This record as data
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