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Free Japan Weather API Simplifies JMA Data for AI Agents

By PulseAugur Editorial · [1 sources] ·

A new open-source server, japan-intel-mcp, has been released to provide free and authoritative weekly weather forecasts for Japan in a simplified JSON format. The server normalizes complex, Japanese-language data from the Japan Meteorological Agency (JMA) into a user-friendly structure, making it accessible for AI agents and developers. This tool addresses challenges with parallel arrays, sub-area data, and Japanese terminology found in the raw JMA feed, ensuring data integrity by citing sources and reporting any data gaps. AI

IMPACT Provides AI agents with a simplified, authoritative source for Japanese weather data, enabling more informed decision-making in logistics and travel planning.

RANK_REASON The item describes a new open-source tool that simplifies access to existing data, rather than a novel release or significant industry event.

Read on dev.to — MCP tag →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

Free Japan Weather API Simplifies JMA Data for AI Agents

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14 / 100
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Tool
The item describes a new open-source tool that simplifies access to existing data, rather than a novel release or significant industry event.
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Only one publisher covered this so far. Single-source stories can still rank when the publisher is high-authority, but they lack cross-source corroboration.
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product, infra
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High
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Breaking (< 6h)
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COVERAGE [1]

  1. dev.to — MCP tag TIER_1 English(EN) · atu ino ·

    Japan Weekly Weather Forecast API — Free JSON with High/Low Temps and Precipitation Probability

    <p>If you want Japan's weekly weather forecast as JSON, the data is free and authoritative — it comes from the <strong>Japan Meteorological Agency (JMA, 気象庁)</strong>. The problem is the shape: the JMA publishes it as deeply nested JSON with parallel arrays, one file per prefectu…

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