6 best usage-based billing platforms(Developer Guide)

The best usage-based billing software for developers includes Credyt for real-time AI and API billing with per-usage authorization, Metronome for enterprise streaming aggregation, Orb for invoice-based billing with custom SQL metrics, Lago for open-source self-hosted billing, Stigg for entitlement orchestration over downstream billing systems, and Flexprice for early-stage SaaS adopting hybrid usage pricing through a no-code dashboard. These six platforms diverge on architecture (real-time walle