Handle webhooks
Local rails complete asynchronously. Verify the signature, treat a payment as paid only on a success webhook, and make your handler idempotent.
Webhook endpoints and deliveries
Configure the endpoint TensorRail delivers webhooks to, rotate its signing secret, and inspect or retry deliveries programmatically.
Error intelligence
One canonical error catalog across every rail: a decline means the same thing whatever produced it, so you write error handling once.
Error catalog
Every ERR_NNNN code the API returns, grouped by family, with the meaning and the handling for each. code is the field to branch on.
Orchestration and routing
Approval-optimized routing, rule-based fallback and decline recovery across the rails enabled for your account.