Documentation Index
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Dashboard

Dashboard
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Getting Started

Welcome to Paymnt Cloud
Quickstart
Environments

Essentials

Authentication
Error Codes
Rate Limits
Idempotency
Pagination & Filtering

Guides — Payments

Payments — Overview
Create a Payment
Capture & Void
Refunds from a Payment
3DS & SCA
Payment Methods

Guides — Customers

Customers — Overview
Tokens & Vault

Guides — Refunds

Refunds — Overview
Create & List Refunds

Guides — Disputes

Disputes — Overview
Dispute Evidence

Routing & Connectors

Connectors
Smart Routing
Profiles
Reconciliation & Reporting

Webhooks & Events

Webhooks — Overview
Event Types
Signing & Retries

SDKs & Tools

JavaScript SDK
Server SDKs
Postman & CLI

Sandbox & Testing

Sandbox
Test Cards & 3DS

Security & Compliance

PCI Scope
GDPR & PII
RBAC & Keys

Operations

Retries & Backoff
Observability
Changelog

Support & FAQ

FAQ
Contact & Support

Idempotency

Essentials

Idempotency

Safe retry patterns with idempotency keys

Idempotency

Use idempotency keys to safely retry POST/PUT/PATCH without duplicating operations.

TODO: document header name and retention window.

Rate Limits Pagination & Filtering

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