Release Notes

1.1.4 – November 2025 | Call Lookup: Source Querying, Simplified Address Processing

Enhancements

Call Lookup: Automatic Source Querying The Call Lookup endpoint has been simplified. All requests now automatically query the ETC and ETB sources and return an aggregated dataset. Manual source specification is no longer required.

AddressProcessing/Create: Simplified Batch Creation The batch creation process has been optimized. Batches can now be created directly via the Create endpoint without requiring prior datagroup creation. Additionally, the endpoint now accepts a settings property, allowing batch settings to be passed directly during creation. A separate call to SetBatchSettings is no longer necessary.

GetRecords: Flexible Output Formats GetRecords now supports choosing between file and JSON format and is the recommended method for accessing AddressResult data. FileDownload remains available for special use cases.

1.1.3 – September 2025 | New Output Formats

New Features

New output format options are now available for AdressProcessing:

• With the endpoint /AdressProcessing/FileDownload, you can now choose whether the file is delivered compressed (.txt.gz) or uncompressed (.txt).

• Default: compressed (false)

• Optional: uncompressed (true)

• The new endpoint /AdressProcessing/GetRecords allows you to retrieve the results directly as JSON.

1.1.2 – June 2025 | More flexibility in Batch Settings

Enhancements

Replacement of SetBatchSetting with SetBatchSettings

• The new SetBatchSettings function fully replaces the previous SetBatchSetting method. It offers a clearer and more flexible way to configure multiple settings in a single call.

• Instead of individual parameters, SetBatchSettings now accepts a structured list in the request body, enabling multiple configuration values to be passed efficiently in one step.

• This function simplifies the application of settings for business use cases and ensures more consistent usage across the API.

1.1 – May 2025 | Call Lookup & flexible batch processing & Auth Key

API version 1.1 introduces a new module (Call Lookup) along with enhanced features for address processing, security, and configurability.

New Features

Call Lookup (Reverse Phone Search)

New lookup functionality enabling targeted reverse searches based on phone numbers.

Address Processing: SetBatchSetting with Type “99 - Dictionary”

Introduction of a new setting type that allows flexible configurations using JSON format. Typical use cases: triggering webhooks (e.g., Airflow), selectively excluding specific data sources, etc.

Address Processing: AddRecords

New endpoint for adding records to existing batches via HTTP PUT. Requirement: The batch must be in created status. This method complements the previous file-based import with an API-based alternative.

Enhancements

Personal Access Tokens (PAT)

Introduction of a new authentication method using PATs, which can be generated and managed through the portal. They provide an alternative to the traditional Bearer Token model.

Usage: Instead of Authorization: Bearer, the token is now transmitted in the header using auth-key.

1.0 – January 2025 | Launch

The first version of the multisource•api lays the foundation for the automated maintenance, enrichment, and search of address and personal data based on reliable Swiss sources.

Core Features

Authentication

• Secure access to the API via Bearer Token.

Validate & Update

• Real-time validation and correction of addresses directly from operational systems (e.g., CRM, campaign management).

• Detection of address changes, deaths, relocations, duplicates, and incorrect address components.

• Use of multiple sources (relocation data, directories, building register) to ensure maximum data quality.

Validate & Enrich

• Enrichment of existing records with structured additional information.

Search & Autocomplete

• Intelligent search for individuals or companies based on partial information.

• Autocomplete for addresses – ideal for form fields (Web, App, CRM).

Batch Processing

• Processing of large data volumes via a high-performance processing engine.

Data Hosting & Privacy

• All data is processed exclusively in Switzerland – compliant with Swiss data protection regulations (DSG).