API Integration

API-first integrationbuilt for developers

RESTful APIs, webhooks, SDKs, and a full sandbox—integrate payments into your application in days, not weeks.

REST APIsWebhooksSandboxInteractive docs

API Capabilities

Everything to integrate payments

Developer tools designed for speed, clarity, and production reliability.

RESTful APIs

Clean REST design with JSON payloads, versioning, rate limits, and detailed error handling.

SDKs & Libraries

Official SDKs for Node.js, Python, Ruby, PHP, Go, and Java with examples and type definitions.

Real-Time Webhooks

Reliable event delivery with retries, signature verification, and webhook management tools.

Sandbox Environment

Full sandbox with test cards, simulated responses, and webhook testing—no production impact.

Interactive Docs

Step-by-step guides, code samples, and API reference to integrate faster.

Fast Integration

Quickstart guides and pre-built examples to go from zero to first payment quickly.

Quick Start

Get started in minutes

Process a sandbox card payment with a single API call.

api.finvypay.com
POST /api/v1/sandbox/card
{
  "orderId": "ORD-12345",
  "amount": 100,
  "currency": "USD",
  "cardNumber": "4111111111111111",
  "cardExpiryMonth": 12,
  "cardExpiryYear": 2025,
  "email": "john@example.com"
}
200 OK · Sandbox response

Official SDKs

SDKs for your stack

Node.js logo
Node.js
Python logo
Python
Ruby logo
Ruby
PHP logo
PHP
Go logo
Go
Java logo
Java

Start integrating today

Explore our API documentation and build with the sandbox environment.