Use exact destinations
Approve only the public API host needed for the integration; do not accept arbitrary callback or target URLs.
Payment integration operations
Put a narrow safety boundary around reviewed payment API traffic
ThrottleProxy can authenticate workspace callers, approve exact public destinations, preserve safe request headers such as idempotency keys, and apply bounded resource policy. It is not a payment processor and does not replace provider authentication or webhook verification.
Exact hostsIdempotency awareNo card-data intake
Practical boundaries
Keep payment operations explicit and recoverable
Separate provider authentication
Proxy credentials are stripped and cannot serve as payment-provider credentials.
Preserve idempotency context
Safe idempotency headers may pass through while proxy credentials and hop-by-hop headers are removed.
Bound retries outside this layer
Automatic retry behavior is not an implemented proxy capability; application and provider semantics remain explicit.
Avoid sensitive bodies in evidence
Operational logs should use stage, status, and timing—not payment payloads, secrets, or customer financial data.
Plan failure recovery
Use provider-side event records, idempotency, and reconciliation as the source of truth for financial outcomes.
Good fit
- Server-side integrations with one reviewed payment API host.
- Teams that need consistent caller, destination, and resource boundaries.
- Operations workflows that rely on safe status and lifecycle context.
Not a replacement for
- Collecting card data or replacing a PCI-scoped payment provider.
- Verifying provider webhooks or reconciling financial records automatically.
- Injecting or storing live payment-provider credentials.
Common questions
Does this make ThrottleProxy a payment processor?
No. Payment collection, financial records, provider credentials, and compliance scope remain with the application and payment provider.
Are idempotency keys stripped?
The outbound sanitizer preserves safe idempotency-key headers while removing proxy credentials and hop-by-hop headers.
Does the proxy retry failed charges?
No automatic retry claim is made. Financial retries must follow the provider's reviewed idempotency and lifecycle rules.
Start with one narrow integration
Use one workspace key, one exact public host, and non-sensitive test traffic.