Developer Integration Infrastructure
Connect your platform or checkout system to PayFlow using official SDKs or REST APIs. Secure credentials, clear documentation, and sandbox testing available.
How Integration Works
From credential setup and API connection to webhook verification and live testing.
Dual Confidential Credential Architecture
Both your API Key and Secret Key are strictly confidential server-side credentials. Neither is ever exposed to public frontends or browsers.
Identifies your merchant workspace. Configured strictly in secure server environment variables.
pk_sandbox_••••••••••••••••••••Authorizes programmatic fund movement and validates HMAC webhook signatures.
sk_sandbox_••••••••••••••••••••# PayFlow Confidential Merchant Credentials (sandbox)
PAYFLOW_ENVIRONMENT=sandbox
PAYFLOW_API_KEY=pk_sandbox_••••••••••••••••••••
PAYFLOW_SECRET_KEY=sk_sandbox_••••••••••••••••••••
PAYFLOW_BASE_URL=https://sandbox.api.payflow.ioCommon Payment Integration Hurdles
Managing multiple payment methods across different providers creates unnecessary engineering overhead.
Fragmented Gateway APIs
Connecting to bank transfers, crypto rails, and cash workflows often requires managing separate vendor libraries with conflicting schemas.
Key Governance Exposure
Improper credential handling risks leaking privileged access. Both API Key and Secret Key must remain confidential, server-side secrets.
Duplicate Charges
Network timeouts and unhandled retries risk duplicate transaction requests without idempotent request handling.
Dropped Webhook Events
Unsigned HTTP callbacks and failed delivery attempts make it difficult to keep internal databases synchronized.
Built for Dependable Developer Integration
Clear developer specifications designed for reliability, type safety, and clean event handling.
Type-Safe SDKs
Official client libraries for TypeScript, Python, PHP, and Go with typed interfaces and autocomplete.
Standard REST API
Deterministic JSON endpoints over HTTPS with standard authentication, accessible from any language.
Secure Key Governance
Both API Key and Secret Key are confidential server-side secrets with configurable scopes.
Idempotent Requests
Idempotency key support ensures safe retries without executing transactions multiple times.
Signed Webhook Events
Every webhook notification is signed via HMAC-SHA256 to ensure payload authenticity.
Sandbox Environment
Test transfer requests, payment matching, and webhook dispatches safely before going live.
Trading Platforms & System Connectors
Built to connect with trading systems, e-commerce stores, and enterprise back-offices.
MetaTrader 4 (MT4)
Manager API integration for direct trader margin funding with automated payment logging.
MetaTrader 5 (MT5)
Multi-currency balance updates, equity credits, and programmatic payout requests.
Match-Trader
Direct gateway connector enabling seamless trader deposits and withdrawals.
Custom CRM & ERP
Webhook notifications and balance exports for internal reporting and back-office sync.