QuantumAPI

European engineering teams face pressure to protect secrets, keys, and identities against harvest-now-decrypt-later attacks while meeting EU data-residency obligations. QuantumAPI builds its encryption, secret-management, and identity services on the NIST post-quantum standards ML-KEM, ML-DSA, and SLH-DSA, and hosts every workload inside the European Union.

Where incumbent platforms such as Okta, Auth0, and 1Password price per seat and operate largely from the United States, QuantumAPI sells API-first access without per-seat fees and runs on EU-only infrastructure. That combination positions it as a European alternative for teams that want quantum-safe tokens, credentials, and keys as the default rather than a migration project.