Publisher values, names, licence texts and raw responses. They are shown unchanged and in their original language.
Open Data Access
Public data is published by dataset. Questions are asked about places.
ODA connects the datasets of municipalities, states, federal agencies and European services to one concrete place. Instead of “which datasets exist about noise?” it answers “how loud is it at this coordinate, as of when, and how much should I trust it?”.
The problem
From dataset to place
How portals are organised
Geoportals list datasets by title, publisher and keywords. Anyone who wants to know what applies at an address has to find, open and query every relevant dataset at the right location themselves.
How questions arrive
People and programs ask about a place: is this address in a flood zone? Which standard land value applies here? How far away is the nearest monitoring station?
What ODA does
ODA records where and how each source is queried, queries only the sources that cover the place, and returns every finding with its spatial support, date, licence and limitations.
Evidence and interpretation
Three layers, always labelled separately
Every view shows where a statement comes from. The label is text next to the content, never colour alone.
What ODA does with them: place resolution, source selection by coverage, temporal reference, absences and budget limits. These steps are deterministic and traceable.
An optional model answer to one question. It is experimental, not calibrated, and always sits above the evidence it cites — never in its place.
Entry points
The same operations, different ways in
SourcesRead each source's catalog definition, coverage, licence and monitoring state without triggering a query.APITry the REST interface v1 and its operations in Swagger.MCPInspect the tools an agent sees over the Model Context Protocol in the Inspector.CLIRun the same operations from the command line.OperationsOpen the separate, authenticated operator console for source health and diagnosis.
What ODA does not claim
- A value for a district, a zone or a raster cell is not a statement about a single address.
- A standard land value (Bodenrichtwert) is a zone reference, not the price of a property.
- A covering source does not mean data exists at a point; missing data is named as an absence with its reason.
- A model answer is experimental. Its evidence stays visible and is the basis, not the answer.