American Express · Rate Limits

American Express Rate Limits

American Express does not publish public API rate limits for its developer products. Throughput, SLA, and concurrency are negotiated under each merchant or issuing-partner agreement. Reconcile if Amex publishes public rate-limit documentation.

1 Limits Throttle: 429
Credit CardsFinancial ServicesPaymentsTokenizationFraud PreventionRewardsBankingRate Limiting

Limits

Undocumented - bilateral agreement contract
varies
see partner agreement; not publicly documented

Policies

Documentation Status
American Express does not publish public per-second or per-minute API rate limits. Throughput, concurrency, and burst behavior are governed by the relevant partner, supplier, or merchant agreement.
Backoff Strategy
Where any HTTP API is exposed, clients should implement exponential backoff with jitter and honor any Retry-After header returned on 429 or 503 responses.

Sources