EUDIBridge — EUDI Wallet Integration Middleware for European SMBs

The Problem

The EUDI Wallet creates a massive integration challenge for SMBs:

Fragmentation nightmare: Each of the 27+ EU member states will deploy their own wallet implementation. A Portuguese fintech serving customers across the EU must integrate with Portugal's wallet, Spain's, Germany's, France's — each with subtle protocol differences, different trust lists, and varying credential formats.

Technical complexity: The stack involves OpenID4VP for verification, OpenID4VCI for credential issuance, SD-JWT for selective disclosure, and FIDO2/WebAuthn for authentication. Most SMB dev teams have zero experience with these protocols.

The "cold start" problem: As Authologic's CEO noted publicly in March 2026, the EU is "facing a cold start with EUDI Wallet" — businesses need to integrate before consumers widely adopt, but they lack incentive without consumer demand. A middleware layer solves this by making integration trivially easy, reducing the bet businesses must make.

Compliance pressure: By December 2027, banks, financial services, telecom, healthcare, and public services MUST accept EUDI Wallet credentials. Preparation must begin in 2026. Late movers face fines and market access restrictions.