Nango is a solid open-source integrations platform with strong OAuth flows. MeterCall is bigger in catalog, flat per-call priced, agent-pay native, and tuned for autonomous workloads rather than human-initiated sync.
| Dimension | MeterCall | Nango |
|---|---|---|
| Catalog | 2,400 modules | ~400 integrations |
| Pricing | $0.001 per call flat | Plan-based pricing with connection seats |
| Open source | MIT node + contracts | OSS core, managed cloud |
| Agent-pay | x402 live | Developer-billed only |
| Sync model | Per-call HTTPS metering | Scheduled syncs + webhooks + actions |
| OAuth flow | BYO credential / proxy | First-class OAuth |
For user-initiated OAuth + scheduled sync, Nango is solid. MeterCall is the per-call metered path — better for agents, worse for "sync my HubSpot to my warehouse nightly."
If you use Nango for sync — keep it. If you use Nango as a runtime API meter — point your calls at api.metercall.ai. Most teams end up using both.