- 2 chains
- 100 active addresses
- 100 settled tx a month
- Full sandbox
- 1 webhook · 1 Edge session
- 7-day audit log · community support
ChainOS Chains, webhooks, Edge sessions, SSO, hardware keystores, audit retention and support.
Active addresses, included settled transactions, overage rate and API rate limit.
Overage is charged, never blocked. Only the address cap stops you, and it prompts an upgrade.
Free is a real tier, not a trial: enough to build, test and run something small.
Size on active addresses, not volume. If you run well over the allowance, the next band up is often cheaper than the overage, which is what the blended figure shows.
Upgrades apply immediately and are prorated. Downgrades apply at the end of the period. Going over your address cap prompts an upgrade, and we never silently reprice you.
Customers × the addresses each one needs ≈ active addresses. Ethereum, BNB Chain, Polygon, Avalanche and Base share one address.
Payment addresses don't count against your band's address cap. Each confirmed payment counts as a settled transaction. Running a gateway for other merchants? Set your own commission per merchant, and ChainOS records it in the settlement book.
Or start on Free today. No card, no expiry, and the full sandbox.