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MCP InfraNode is also available as an MCP server for AI assistants like Claude and ChatGPT.

Open data API for Berlin

Open data for Berlin (Berlin) through a free, keyless REST API: weather, air quality, electricity price and more, delivered as consistent JSON with source and license on every response. No API key, no sign-up.

This city is also available as a ChatGPT GPT: open Berlin Live in ChatGPT . All InfraNode GPTs.

CityBerlin
StateBerlin
Population3,782,202
API slugberlin
CoverageCore (hand-verified sources)

Data with a guide for Berlin

These data types have an in-depth guide; all are retrievable for Berlin via the slug:

How to fetch data for Berlin

A simple GET request, no key and no sign-up:

curl https://infranode.dev/api/v1/cities/berlin/weather

Or air quality:

curl https://infranode.dev/api/v1/cities/berlin/air-uba

All 69 data types for Berlin

Using the same slug, all 69 city data types can be retrieved for Berlin. Where a source has nothing for Berlin (yet), the API honestly returns no_data instead of an error. Parameters and example responses for each data type are in the linked reference:

An overview of all cities is on the cities page. InfraNode is also available as an MCP server for AI assistants.

Berlin via MCP server in Claude and ChatGPT

All open data for Berlin is also available through the free, keyless InfraNode MCP server for AI agents. Connect it once to Claude or ChatGPT and ask in natural language, for example "Give me an overview of Berlin" (calls get_city_overview, the catalog of all data types with live highlights) or more specifically "What is the weather in Berlin?". Here is how to set it up: set up the MCP server.