For Developers

Build payment apps. Ship in days.

The stablecoin payment infrastructure developers actually want to use. Clean APIs, real SDKs, working sandbox, and docs that do not lie about what works.

Read the Docs Join Discord

Official SDKs

<5min

Setup time

40+

Webhook events

99.99%

API uptime

Why Developers Love Insfers

We built it the way we wanted our payment processor to work

Clean, Predictable APIs

REST with predictable resource URLs, JSON request and response bodies, and meaningful HTTP status codes. Just like you would design them.

Idempotency Built In

Safe to retry every request. Pass an idempotency key and we guarantee at-most-once execution — even through network failures.

Real Sandbox

Test mode that mirrors production. Real wallet flows, real webhooks, real edge cases — no surprises when you ship.

Honest Documentation

Code examples in every SDK. Cookbooks for real use cases. Errors include the exact field that failed. No mystery debugging.

Webhook DX

CLI for local forwarding, signature verification helpers in every SDK, retry inspection in the dashboard. Never miss an event again.

Active Community

Discord with 5,000+ developers. Engineering team answers questions in hours, not days. Open-source SDKs accept PRs.

From Zero to First Payment in 3 Minutes

No really. Time yourself.

Step 1

Install the SDK

Available for Node.js, Python, Go, Ruby, PHP, Java, .NET, plus community SDKs for Rust and Elixir.

bash

npm install @insfers/node
# or
pip install insfers
# or
go get github.com/insfers/insfers-go

Step 2

Create a payment

Three lines of code. Returns a hosted checkout URL you can redirect customers to.

javascript

import Insfers from "@insfers/node";

const insfers = new Insfers(process.env.INSFERS_KEY);

const payment = await insfers.payments.create({
  amount: 4900,         // $49.00
  currency: "usdc",
  description: "Pro plan",
});

// Redirect customer to payment.url

What You Can Build

Real use cases shipping on Insfers today

Subscriptions API

SaaS Subscriptions

Recurring billing in USDC. Handle trials, upgrades, dunning, and proration. Stripe-equivalent functionality.

Connect API

Marketplace Payouts

Split payments across multiple sellers. Hold funds in escrow. Trigger payouts on conditions you define.

Invoicing API

Cross-Border B2B

Invoice clients globally without wire fees. Programmatic invoicing, reminders, and reconciliation.

Receipts API

On-Chain Receipts

Every payment generates a verifiable on-chain record. Built-in attestations for accounting and audit.

Checkout API

Multi-Wallet Checkouts

Let customers pay with any major wallet — MetaMask, Coinbase Wallet, WalletConnect, Phantom, and more.

Wallet SDK

Custom Wallets

Use our wallet SDK to embed self-custody flows in your app. Key management, recovery, and signing — handled.

Works With Your Stack

Official SDKs and integrations for the tools you already use

Node.js

Official SDK

Python

Official SDK

Ruby

Official SDK

PHP

Official SDK

Java

Official SDK

.NET / C#

Official SDK

Rust

Community

Elixir

Community

React

Components

Vue

Components

Next.js

Starter

Join 5,000+ Builders

Developers shipping stablecoin payment apps with Insfers

5,000+

Discord Members

12k+

GitHub Stars

2,400+

Live Apps

Join Discord View on GitHub

Start Building Today

Free to start. No credit card required. Test mode is free forever.

Get API Keys Read the Docs

import Insfers from "@insfers/node"; const insfers = new Insfers(process.env.INSFERS_KEY); const payment = await insfers.payments.create({ amount: 4900, // $49.00 currency: "usdc", description: "Pro plan", }); // Redirect customer to payment.url