# GribStream MCP MCP server Agent View of the PolicyLayer registry record for GribStream MCP: identity, probed posture, risk grade, and all 12 tools classified. HTML page: https://policylayer.com/tools/com-gribstream-mcp ## Facts - Server id: `https://gribstream.com/mcp` - Homepage: https://github.com/GribStream/gribstream-mcp - Registry record: grade F, identity unverified - Lifecycle: active - Auth posture: open - Rate-limited: no - Tools: 12 (11 with introspected schema) - Tool categories present: Execute, Read, Write - Context-window cost: 8304 tokens per request — https://policylayer.com/token-cost/com-gribstream-mcp - Tags: com gribstream mcp, automation - Record last modified: 2026-08-16T15:35:52.252Z ## Tools (12) | Tool | Category | Risk | Record | | --- | --- | --- | --- | | `gribstream_build_runs_request` | Execute | High | https://policylayer.com/tools/com-gribstream-mcp/gribstream-build-runs-request.md | | `gribstream_build_timeseries_request` | Execute | High | https://policylayer.com/tools/com-gribstream-mcp/gribstream-build-timeseries-request.md | | `gribstream_get_dataset` | Read | Low | https://policylayer.com/tools/com-gribstream-mcp/gribstream-get-dataset.md | | `gribstream_get_expression_reference` | Read | Low | https://policylayer.com/tools/com-gribstream-mcp/gribstream-get-expression-reference.md | | `gribstream_get_parameter` | Read | Low | https://policylayer.com/tools/com-gribstream-mcp/gribstream-get-parameter.md | | `gribstream_list_datasets` | Read | Low | https://policylayer.com/tools/com-gribstream-mcp/gribstream-list-datasets.md | | `gribstream_list_parameters` | Read | Low | https://policylayer.com/tools/com-gribstream-mcp/gribstream-list-parameters.md | | `gribstream_list_shared_parameters` | Read | Low | https://policylayer.com/tools/com-gribstream-mcp/gribstream-list-shared-parameters.md | | `gribstream_query_runs` | Read | Low | https://policylayer.com/tools/com-gribstream-mcp/gribstream-query-runs.md | | `gribstream_query_timeseries` | Read | Low | https://policylayer.com/tools/com-gribstream-mcp/gribstream-query-timeseries.md | | `gribstream_resolve_shared_parameter` | Read | Low | https://policylayer.com/tools/com-gribstream-mcp/gribstream-resolve-shared-parameter.md | | `gribstream_validate_request` | Read | Low | https://policylayer.com/tools/com-gribstream-mcp/gribstream-validate-request.md | ## Tool descriptions - `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 gribstre… - `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 gr… - `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. - `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 weathe… - `gribstream_get_parameter` — NO AUTH / PUBLIC / READ-ONLY. Gets detailed metadata and exact selector variations for one dataset parameter. Parameter codes are case-sensitive. This tool does not query weather values and cannot return forecast data. - `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. - `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. - `gribstream_list_shared_parameters` — NO AUTH / PUBLIC / READ-ONLY. Lists normalized shared parameter presets that can map one logical signal across datasets. This tool does not query weather values and cannot return forecast data. - `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… - `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, r… - `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. This tool does not execute the request, query weather values, or … - `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,… ## Related servers - UnClick (1662 tools) — https://policylayer.com/tools/io-github-malamutemayhem-unclick-mcp-server.md - Delx Protocol — Agent Recovery & Continuity (1076 tools) — https://policylayer.com/tools/io-github-davidmosiah-delx-protocol.md - Delx Mcp A2a (1068 tools) — https://policylayer.com/tools/io-github-davidmosiah-delx-mcp-a2a.md - MCP Framework Personal (912 tools) — https://policylayer.com/tools/inggerman-mcps.md - Nodebench (824 tools) — https://policylayer.com/tools/io-github-homenshum-nodebench.md - Delx MCP Server (740 tools) — https://policylayer.com/tools/io-github-davidmosiah-delx-mcp-server.md - Binance MCP Server (734 tools) — https://policylayer.com/tools/nirholas-binance-mcp.md - Crawlora (728 tools) — https://policylayer.com/tools/crawlora-mcp.md ## For agents This record is a snapshot. Live verdicts and the full registry: - Check every server in your MCP config at once: `npx -y policylayer stack` - Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md) - Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events` --- Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=com-gribstream-mcp · API: https://policylayer.com/registry/api · Recommended policies for every tool: https://policylayer.com/policies/com-gribstream-mcp