Supported systems
Every platform available through the unified contract today, with auth and rate limits handled by Flow.
Every platform below is available through the unified contract today. Auth against each platform — OAuth dances, token refresh, API-key plumbing — is handled entirely by Flow.
| System | Auth | Rate limit | Verticals |
|---|---|---|---|
| Shopify | OAuth 2.0 | 1 req / s | Retail POS |
| Lightspeed X-Series | OAuth 2.0 | 70 req / 6s | Retail POS |
| Lightspeed R-Series | OAuth 2.0 | 1 req / 10s | Retail POS |
| Square | OAuth 2.0 | 5 req / s | Retail POS, Restaurant |
| Clover (Asia Pacific) | API token | 5 req / 6s | Retail POS, Restaurant |
| Toast | API token | 5 req / s | Restaurant |
| Clover (US) | API token | 5 req / 6s | Restaurant |
| Lightspeed K-Series | OAuth 2.0 | 100 req / 60s | Restaurant |
| QuickBooks Online | OAuth 2.0 | 50 req / 6s | Accounting |
| Xero | OAuth 2.0 | 1 req / s | Accounting |
| Cin7 Core | API key | 2 req / 3s | Accounting |