# multisource•api The **multisource•api** provides standardized access to **all data sources** relevant for managing **Swiss customer data**. It offers companies of all sizes a toolbox to **validation, correction, enrichment,** and **optimization** of customer data. A special focus is placed on **address updates**: The API ensures that your data remains up-to-date, particularly in cases of **relocations**, deaths, and other relevant address adjustments.

## Core API Functions The **multisource•api** provides the following core functions:


Data Search	Fast and precise search for private and business addresses across multiple data sources – ideal for autocomplete fields, CRM lookups, or new customer onboarding.
Address Update	Automatic detection and update of address changes, relocations, and death notifications to ensure your customer data always stays up to date.
Data Enrichment	Enhance existing customer records with additional attributes such as building data, geo-coordinates, sociodemographic indicators, or industry information.

Data Search

Fast and precise search for private and business addresses across multiple data sources – ideal for autocomplete fields, CRM lookups, or new customer onboarding.

Address Update

Automatic detection and update of address changes, relocations, and death notifications to ensure your customer data always stays up to date.

Data Enrichment

Enhance existing customer records with additional attributes such as building data, geo-coordinates, sociodemographic indicators, or industry information.

These core functions form the foundation of the multisource•api and can be flexibly combined depending on the use case or CRM system. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://multisource.gitbook.io/multisource-integration-api/introduction/multisource-api.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.