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Open-Meteo MCP Server

Provides comprehensive access to Open-Meteo APIs for weather forecasts, historical data, air quality, and marine conditions. It enables LLMs to query specialized meteorological models, perform geocoding, and access advanced climate or flood projections.

→ cmer81/open-meteo-mcp· listed on glama
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// key findings
🚨
Known vulnerabilities in dependencies: 1 critical, 17 high
Affects packages this MCP installs at runtime. Upgrade or remove the affected dependency.
🔐
You'll be asked for 1 credential: API_KEY
These are read from process.env at runtime. Make sure you trust where they’ll be sent.
// known CVEs in dependencies1 critical17 high13 low

Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.

criticalvitest@4.0.16GHSA-5xrq-8626-4rwp

When Vitest UI server is listening, arbitrary file can be read and executed

high@modelcontextprotocol/sdk@1.21.1GHSA-345p-7cg4-v4c7

@modelcontextprotocol/sdk has cross-client data leak via shared server/transport instance reuse

high@modelcontextprotocol/sdk@1.21.1GHSA-8r9q-7v3j-jr4g

Anthropic's MCP TypeScript SDK has a ReDoS vulnerability

high@modelcontextprotocol/sdk@1.21.1GHSA-w48q-cv73-mx4w

Model Context Protocol (MCP) TypeScript SDK does not enable DNS rebinding protection by default

highaxios@1.6.0GHSA-35jp-ww65-95wh

axios Vulnerable to Full Man-in-the-Middle via Prototype Pollution Gadget in `config.proxy`

Depend on this server? Get alerted when its CVEs change.Watch this server free →
// required environment variables
This server reads these from process.env. You'll be asked to provide them before it can run.
🔐 secretAPI_KEY— your-secret-key RATE_LIMIT_RPM=60 TRANSPORT=http PORT=3000 npx open-meteo-mcp-server
configOPEN_METEO_AIR_QUALITY_API_URL— "": "https://air-quality-api.open-meteo.com",
configOPEN_METEO_API_URL— "": "https://api.open-meteo.com",
configOPEN_METEO_ARCHIVE_API_URL— "": "https://archive-api.open-meteo.com",
configOPEN_METEO_CLIMATE_API_URL— "": "https://climate-api.open-meteo.com"
configOPEN_METEO_ENSEMBLE_API_URL— "": "https://ensemble-api.open-meteo.com",
configOPEN_METEO_FLOOD_API_URL— "": "https://flood-api.open-meteo.com",
configOPEN_METEO_GEOCODING_API_URL— "": "https://geocoding-api.open-meteo.com",
configOPEN_METEO_MARINE_API_URL— "": "https://marine-api.open-meteo.com",
configOPEN_METEO_SEASONAL_API_URL— "": "https://seasonal-api.open-meteo.com",
configPORT— TRANSPORT=http =3000 npx open-meteo-mcp-server
configRATE_LIMIT_RPM— API_KEY=your-secret-key =60 TRANSPORT=http PORT=3000 npx open-meteo-mcp-server
configTRANSPORT— The server also supports Streamable HTTP transport for remote deployments. Set the environment variable to http:
configTRUSTED_PROXIES
// full audit trail
The full breakdown of what we checked, the deductions that landed, the network hosts, the dependency advisories, and concrete fix guidance is available to verified publishers.
// improvement guidance — verified publishers only
We have 2 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.
// embed badge in your README
[![M8ven Score](https://m8ven.ai/badge/mcp/cmer81-open-meteo-mcp-1c2qqh)](https://m8ven.ai/mcp/cmer81-open-meteo-mcp-1c2qqh)
commit: d1f0c7b9434d4253a7b40c83325c011d37b23a2d
code hash: dc82555b550df41dd07cd6fa56af08cf63c85851700719edfebb8fc467fbedf0
verified: 6/17/2026, 12:20:31 PM
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