GribStream Weather is an MCP server with 12 tools an agent can call, among them gribstream_build_runs_request, gribstream_build_timeseries_request, gribstream_get_dataset. It answers at https://gribstream.com/mcp over streamable HTTP, and it listed its tools to an anonymous client, so no sign-in was needed for that. Our probes reached it 10 of 10 times since 5 September 2026; the last check, on 18 October 2026, succeeded.
NOAA and ECMWF weather forecast MCP for discovery, validation, and GribStream OAuth queries.
Description as the publisher wrote it.
| Tool | What it does |
|---|---|
gribstream_build_runs_request | NO AUTH / PUBLIC / READ-ONLY. Builds and validates a copy-pasteable authenticated /api/v2/{dataset}/runs HTTP request without sending it. This tool does not execute the request, query weather values, or return forecast data. Use gribstream_ Inputs: accept, dataset, request |
gribstream_build_timeseries_request | NO AUTH / PUBLIC / READ-ONLY. Builds and validates a copy-pasteable authenticated /api/v2/{dataset}/timeseries HTTP request without sending it. This tool does not execute the request, query weather values, or return forecast data. Use gribs Inputs: accept, dataset, request |
gribstream_get_dataset | NO AUTH / PUBLIC / READ-ONLY. Gets full public metadata for one dataset code, including archive coverage, cadence, tags, source links, and members. This tool does not query weather values and cannot return forecast data. Inputs: dataset |
gribstream_get_expression_reference | NO AUTH / PUBLIC / READ-ONLY. Gets the GribStream expression language reference, including github.com/expr-lang/expr syntax guidance, alias rules, examples, and the full exported func.* math function list. This tool does not query weather v |
gribstream_get_parameter | NO AUTH / PUBLIC / READ-ONLY. Gets detailed metadata and exact selector variations for one already-known dataset-native parameter code. Parameter codes are case-sensitive. For a common natural-language concept such as 2 metre temperature, u Inputs: dataset, parameter |
gribstream_list_datasets | NO AUTH / PUBLIC / READ-ONLY. Lists public GribStream datasets and metadata. This tool does not query weather values and cannot return forecast data. Supports catalog filters such as code, family, tag, and is_ensemble. Inputs: code, family, is_ensemble, tag |
gribstream_list_parameters | NO AUTH / PUBLIC / READ-ONLY. Lists parameter summaries for one dataset. Use this before selecting exact case-sensitive parameter codes. This tool does not query weather values and cannot return forecast data. Inputs: dataset |
gribstream_list_shared_parameters | NO AUTH / PUBLIC / READ-ONLY. Lists normalized shared parameter presets that can map one logical signal across datasets. Use this only when the shared parameter code is uncertain; when a common code such as temperature_2m is already clear, Inputs: dataset, dataset_mode |
gribstream_query_runs | AUTH REQUIRED / DATA QUERY. Executes an authenticated /api/v2/{dataset}/runs request and returns actual weather/forecast data values across model runs. Use this tool, not the NO AUTH request-building or metadata tools, when the user asks to |
gribstream_query_timeseries | AUTH REQUIRED / DATA QUERY. Executes an authenticated /api/v2/{dataset}/timeseries request and returns actual weather/forecast data values. Use this tool, not the NO AUTH request-building or metadata tools, when the user asks to fetch, retr |
gribstream_resolve_shared_parameter | NO AUTH / PUBLIC / READ-ONLY. Resolves one shared parameter preset for a dataset, returning native variables and expressions to use in /timeseries or /runs request bodies. Use this first for common natural-language concepts such as 2 metre Inputs: alias, dataset, parameter |
gribstream_validate_request | NO AUTH / PUBLIC / READ-ONLY. Validates the basic shape, exact selector tuples, and expression syntax of a proposed GribStream /timeseries or /runs request without sending it. This tool does not execute the request, query weather values, or Inputs: dataset, endpoint, request |
Every block below points at https://gribstream.com/mcp. Pick your client and copy.
claude mcp add --transport http gribstream-weather https://gribstream.com/mcp
{
"mcpServers": {
"gribstream-weather": {
"command": "npx",
"args": ["-y", "mcp-remote", "https://gribstream.com/mcp"]
}
}
}{
"mcpServers": {
"gribstream-weather": {
"url": "https://gribstream.com/mcp"
}
}
}{
"servers": {
"gribstream-weather": {
"type": "http",
"url": "https://gribstream.com/mcp"
}
}
}{
"context_servers": {
"gribstream-weather": {
"url": "https://gribstream.com/mcp"
}
}
}{
"mcpServers": {
"gribstream-weather": {
"serverUrl": "https://gribstream.com/mcp"
}
}
}{
"mcpServers": {
"gribstream-weather": {
"url": "https://gribstream.com/mcp"
}
}
}name: GribStream Weather
version: 0.0.1
schema: v1
mcpServers:
- name: GribStream Weather
type: streamable-http
url: https://gribstream.com/mcp{
"mcpServers": {
"gribstream-weather": {
"httpUrl": "https://gribstream.com/mcp"
}
}
}{
"mcpServers": {
"gribstream-weather": {
"type": "http",
"url": "https://gribstream.com/mcp"
}
}
}{
"mcpServers": {
"gribstream-weather": {
"url": "https://gribstream.com/mcp"
}
}
}goose://extension?url=https%3A%2F%2Fgribstream.com%2Fmcp&type=streamable_http&id=gribstream-weather&name=GribStream%20Weather
It answered our last check on 18 October 2026 in 428 ms. Over 10 checks since 5 September 2026 it answered 10. Status here comes from Neuronto's own probes, not from the publisher.
Yes. It is published by gribstream.com and served from gribstream.com, the vendor's own domain: https://gribstream.com/mcp.
12, as returned by the server's own tools/list on 31 August 2026: gribstream_build_runs_request, gribstream_build_timeseries_request, gribstream_get_dataset, gribstream_get_expression_reference, gribstream_get_parameter, gribstream_list_datasets, gribstream_list_parameters, gribstream_list_shared_parameters, and 4 more.
It answered our last check on 18 October 2026 in 428 ms. Over 10 checks since 5 September 2026 it answered 10.
Put the server under mcpServers in ~/.cursor/mcp.json with the URL https://gribstream.com/mcp. The exact JSON is above, with the same setup for Claude Code, Claude Desktop, VS Code, Windsurf, Zed, Gemini CLI and the rest.
It listed its tools to an anonymous client, so reading the tool list needs no key. Individual tools can still ask for credentials in their own inputs.
Publisher: com.gribstream. Endpoint host: gribstream.com. ARD identifier: urn:air:com.gribstream:mcp:mcp.
First indexed 31 August 2026. The tools are exactly what the server returned; nothing on this page
is inferred from its name. Ranking in Neuronto search is never for sale.