GlossaryEN1 min readUpdated: Jul 7, 2026

Passar API version

The Passar API interface version denotes the specific release of the technical programming interface (API) through which the IT systems of freight forwarders, carriers and customs agents communicate directly with the BAZG (Swiss Federal Office for Customs and Border Security) goods-traffic system Passar.

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Last updated: 7 July 2026Published: 27 January 2026

Source: BAZG (bazg.admin.ch): Passar – Technische Informationen / Warenverkehrssystem Passar (B2B-Anbindung, Schnittstellenversionierung, JWT). Stand: Juli 2026.

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Passar Hub: Everything on the new Swiss customs system

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Definition & Explanation

The Passar API interface version denotes the specific release of the technical programming interface (API) through which the IT systems of freight forwarders, carriers and customs agents communicate directly with the BAZG (Swiss Federal Office for Customs and Border Security) goods-traffic system Passar. In plain terms: it works like a software version number, defining which data fields, message formats and endpoints apply for automated data exchange. In practice: each interface version fixes the permitted structures of the goods declaration (Warenanmeldung) and transport declaration (Transportanmeldung), the available Passar API endpoints, and the expected behaviour for responses and errors. Companies connecting to Passar must align their software with the valid version; a version change (new fields, altered validations) requires adjustments, with the BAZG normally providing transition periods and a test environment. Authentication uses Passar API tokens (JWT) as described under Passar API authentication. Distinction: the technical interface version must not be confused with the functional programme stage of Passar, i.e. Passar 1.0 (transit/export) and Passar 2.0 import (pilot operation stages 1+2 since Q2 2026 under DaziT). As of: July 2026.

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Current 2026

Passar Hub: Everything on the new Swiss customs system

Passar 2.0: import pilot with pre-registration

Passar 1.0Passar 2.0Passar 3.0

Passar Hub →Declar Info

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