OOWV catalog Open data in a single API request

Datasets published by OOWV. datasets available on official portal for European data

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Available datasets

Open data Portal OOWV catalog Open Data API in development

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Jahresberichte des Blockheizkraftwerks Open Data

<p>Blockheizkraftwerke (BHKW) werden zur Gewinnung von elektrische Energie und Wärme genutzt. Der...

Issued on 2026-04-10T04:08:38+02:00

Jahresberichte des Blockheizkraftwerks details >

Klärschlamm Open Data

<p>Im Rahmen der Reinigung des Abwassers entsteht in den Kläranlagen des...

Issued on 2026-04-10T04:08:38+02:00

Klärschlamm details >

Untersuchungsergebnisse des gereinigten Abwassers Open Data

<p>Der OOWV betreibt in Oldenburg eine Kläranlage. In diesem Datensatz werden die...

Issued on 2026-04-10T04:08:38+02:00

Untersuchungsergebnisse des gereinigten Abwassers details >

European data infrastructure with broad catalog discovery, free evaluation access and production-grade API options.

190K+

indexed dataset pages

countries and EU institutions

2019

API-first since

Free API quota

for evaluation and prototypes

SLA

history and push on production APIs

FAQ

Questions before production use

Practical answers on evaluation, licensing, freshness, versioning and support.

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Yes. Selected APIs include a free API quota, so your team can validate coverage, freshness, response shape and workflow fit before asking for a production plan.

Often yes, but usage rights depend on the source license and dataset. We surface source, license and update metadata where available, and can help review terms before a production integration.

Maintained APIs include update metadata where available. For production integrations, we can add history, monitoring and push updates so changes are easier to detect and act on.

Production APIs can add SLA, stable identifiers, versioning support, history, push updates and direct support around the data your product or AI workflow depends on.

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