# Altum AI API documentation

## Start building today

Start building your own custom tooling, website and customer journey with the API's of Altum AI accessing the proprietary automated model valuation, sustainability advice, Kadaster transactions and much more data.

Integrating the API's is an easy process with our clear documentation and sample code in JSON.

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Create a **free account** via Altum AI's [Platform](https://mopsus.altum.ai/?utm_source=docs\&utm_medium=link\&utm_campaign=Gitbook) to get your API key
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<table data-view="cards"><thead><tr><th></th><th></th><th></th><th data-type="content-ref"></th><th data-type="files"></th></tr></thead><tbody><tr><td><strong>Sustainability API</strong></td><td>Generate sustainability advice</td><td>Estimate current and potential NTA 8800 energylabel</td><td><a href="sustainability/sustainability-api">sustainability-api</a></td><td></td></tr><tr><td><strong>AVM API</strong></td><td>Market valuations of residential properties. </td><td>Extract object data such as house type and surfaces</td><td><a href="property-valuation-and-market/avm-api">avm-api</a></td><td></td></tr><tr><td><strong>WOZ API</strong></td><td>Fetch the latest WOZ value from the WOZwaardeloket</td><td>The WOZ API can search based on address or the BAG ID</td><td><a href="property-data/woz-api">woz-api</a></td><td></td></tr><tr><td><strong>Interactive reference API</strong></td><td>Find relevant recent transactions to support the valuation</td><td>As an appraiser, use extensive configurable features to find up to 30 comparable sales</td><td><a href="property-valuation-and-market/interactive-reference-api">interactive-reference-api</a></td><td></td></tr><tr><td><strong>Kadaster transaction API</strong></td><td>Retrieve the transaction details such as price from Kadaster</td><td>PING freely for availability of the transaction</td><td><a href="property-valuation-and-market/kadaster-transaction-api">kadaster-transaction-api</a></td><td></td></tr><tr><td><strong>Condition score API</strong></td><td>Estimate condition score of bathrooms and kitchens</td><td>Get an unbiased score ranging from 1 to 5</td><td><a href="property-valuation-and-market/condition-score-api">condition-score-api</a></td><td></td></tr></tbody></table>

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Find all available API's in the sidebar on the left
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