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Developer Platform

Build Global Payments into Your Product in Days, Not Months

comFac's REST API gives developers everything needed to embed cross-border payment capabilities into any application — with clean documentation, SDKs, and a sandbox that mirrors production.

Developer API Code Integration
Uptime SLA
99.9%
Guaranteed uptime
Avg Response
<50ms
API latency
SDKs
7 Languages
API-First Infrastructure

Powerful Payment APIs Built for Developers

Payment infrastructure is one of the most complex and critical pieces of any global application. A poorly integrated payment system causes failed transactions, unhappy users, and compliance headaches. comFac was designed API-first — meaning every feature available in the dashboard is also available via API, with no exceptions.

The REST API follows industry-standard conventions with predictable resource-oriented URLs, JSON request and response bodies, and standard HTTP status codes. Comprehensive documentation with real code examples in seven programming languages — JavaScript, Python, PHP, Ruby, Go, Java, and .NET — means your team isn't starting from scratch. Most integrations go from sandbox to production in under two weeks.

Our sandbox environment is a complete replica of production — same data models, same response formats, same webhook events — but using simulated transactions. You can test edge cases, simulate failures, and validate your integration thoroughly before going live. And with a 99.9% uptime SLA and sub-50ms average API response times, comFac is built to be the reliable backbone of your platform.

POST /v1/payments HTTP/1.1
Host: api.comfac.io
Authorization: Bearer sk_live_xxxxxxxxxxxx
Content-Type: application/json

{
  "amount": 50000,
  "currency": "USD",
  "destination_currency": "JPY",
  "recipient": {
    "name": "Tanaka Trading Co.",
    "account_number": "1234567890",
    "routing_code": "MUFGJPJT"
  },
  "reference": "INV-2025-4872"
}
What's Included

Everything You Need, Nothing You Don't

  • RESTful API with JSON
  • Full sandbox environment
  • Webhooks for all events
  • 7 language SDKs
  • OpenAPI/Swagger spec
  • 99.9% uptime SLA
API Documentation Developer Portal
Platform Features

Built for Every Stage of Your Integration

From first API call to enterprise-scale production, comFac gives developers the tools they need to ship fast and scale confidently.

📋
Clean REST API
RESTful endpoints organized around core resources (payments, collections, accounts, FX). Predictable, versioned, and backward-compatible — your integration won't break with updates.
🧪
Full-Featured Sandbox
Test every API endpoint with simulated transactions, edge-case scenarios, and failure states in an isolated sandbox that perfectly mirrors the production environment.
🔔
Webhooks & Events
Subscribe to real-time webhook events for payment status changes, FX executions, compliance flags, and more. Replay missed events anytime with our 30-day event log.
📚
SDKs in 7 Languages
Official SDKs for JavaScript/Node.js, Python, PHP, Ruby, Go, Java, and .NET. Each SDK is open-source, actively maintained, and includes typed models and async support.
🔑
Secure API Keys & OAuth
Granular API key scopes let you issue keys with only the permissions your integration requires. OAuth 2.0 support for user-delegated access flows.
📡
OpenAPI Spec & Postman
Download our OpenAPI 3.0 specification to generate client code in any language, or import our Postman collection for instant endpoint exploration.
Integration Process

From API Keys to Production in 4 Steps

Our streamlined onboarding process gets developers from first call to live payments faster than any other global payment API.

1
Create API Keys
Generate scoped API keys in your dashboard — separate keys for sandbox and production with granular permission sets.
2
Explore the Docs
Use our interactive API reference with live request/response examples to understand each endpoint before writing code.
3
Build in Sandbox
Develop and test your integration against the sandbox. Simulate payments, FX conversions, webhooks, and failure scenarios safely.
4
Go Live
Switch your API key to production. Our team reviews your integration and provides go-live support to ensure everything works as expected.
99.9%
Uptime SLA
<50ms
API Response
7
Official SDKs
200+
API Endpoints
Use Cases

Built for Teams That Move Fast

Whether you're a lean startup or a global enterprise, the comFac API scales to your needs and integrates into your existing stack.

🚀
Fintech Startups
Embed cross-border payment capabilities without building banking infrastructure from scratch.
  • Rapid integration
  • Full feature parity with dashboard
  • Startup-friendly pricing
🔄
Platforms & Marketplaces
Automate collections from buyers and payouts to sellers via a single API.
  • Split payment automation
  • Webhook-driven workflows
  • Sandbox-safe testing
🏢
Enterprise SaaS
Add multi-currency billing and global payout features to your existing product.
  • Enterprise SLA guarantees
  • Dedicated integration support
  • Versioned backward-compatible API
FAQ

Frequently Asked Questions

Everything developers ask before building with the comFac API.

Ready to start building with comFac API?

Create your free developer account and explore the full API in our sandbox today.

Free sandbox access No credit card required Go live in 2 weeks 99.9% uptime SLA