Silence Labs S;lent Open Banking vs StrongKey: Side-by-Side Comparison (2026)

Silence Labs S;lent Open Banking

Mid-market and enterprise banks implementing open banking APIs need a way to sign transactions without holding private keys in memory, and S;lent Open Banking solves that through MPC-based distributed signing that eliminates the single point of compromise HSMs create. The threshold signature scheme means no individual server or administrator can unilaterally authorize a transaction, directly addressing NIST PR.AA identity controls that most legacy key management systems fail at. Skip this if your open banking footprint is still small or if you're locked into hardware security module architectures; S;lent's value compounds only when you're managing high-volume, high-risk API transactions across multiple endpoints.

StrongKey

SMBs and mid-market firms handling sensitive payment or manufacturing data will get the most from StrongKey's hardware-backed tokenization and FIDO authentication, which isolates critical assets from application-layer breaches. The Tellaro T-Series appliance pairs passwordless auth with PSD2/SCA and PCI DSS compliance built in, cutting the friction of bolt-on security layers. Skip this if you need a cloud-native, API-first platform; StrongKey's strength in hardware key management and legacy PKI integration means it's built for on-premises and hybrid deployments, not pure SaaS environments.