Fees & limits overview
This section covers how OrcaRail charges for hosted usage, plus fees and minimums that appear in payment quotes and withdrawals.
Hosted platform pricing
Hosted OrcaRail (our cloud API, dashboard, and hosted pay) costs 0.5% of each completed transaction, with your first 1,000 transactions free. For example, a $100 payment costs $0.50. We structure it this way so the product stays a transparent, accessible public good while we operate the infrastructure.
Self-hosted OrcaRail — deploying the stack on your own infrastructure — has no software fee from us. You still pay your own infrastructure and third-party costs (e.g. RPC, gas). Developer SDKs, MCP, and plugins are MIT; we do not publish the hosted api / app / pay source as open source.
For the items below, “fees” means amounts included in the payer’s quote (support, commission, bridge) and chain-level minimums, not the hosted platform price above.
What we cover
- Fees — Support fee, commission fee (API key), and bridge fee; how they are computed and included in the total amount the payer sends.
- Payment minimums — Per-network minimum transfer amounts, validation, and how they affect support/commission (fee floor and
supportMinimumApplied/commissionMinimumApplied). - Withdrawal minimums — Auto-withdrawal threshold and when withdrawals are skipped.
Quick reference
| Topic | Env / config | API behavior |
|---|---|---|
| Support fee default | PAYMENTS_DEFAULT_SUPPORT_PERCENT (default 0.5) | Percent of original amount; can override per quote via supportPercent. |
| Commission | API key commissionPercent | Percent of original amount; only when payment uses that API key. Commission < $0.01 USD is not charged. |
| Bridge fee | From Relay | When payer token/network ≠ receivable; included in quote. |
| Payment minimum | PAYMENTS_MIN_AMOUNT_SOLANA_LAMPORTS, PAYMENTS_MIN_AMOUNT_EVM_WEI, PAYMENTS_MIN_AMOUNT_BITCOIN_SATS | Validates amount; floors support/commission fee amounts. |
| Auto-withdraw minimum | WITHDRAWAL_MIN_AUTO_AMOUNT (default 0.0001) | Auto-withdraw skipped if balance below this (USD). |
For full details and formula, see the linked pages above.