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For Developers

Developer Experience First

We built Fulxion the way we'd want to use it ourselves. Clean APIs, comprehensive SDKs, and documentation that actually helps.

Try Our API Right Now

No signup required. Experience the power of Fulxion API in real-time with our interactive sandbox.

Request

Create a new HD wallet for a user

POST/api/v1/wallets
{
  "method": "POST",
  "url": "https://sandbox.fulxion.io/api/v1/wallets",
  "headers": {
    "Authorization": "Bearer sandbox_pk_test_1234567890",
    "Content-Type": "application/json"
  },
  "body": {
    "user_id": "user_demo_123",
    "currency": "BTC",
    "type": "HD_WALLET"
  }
}

Response

Click "Execute API Call" to see the response

Lightning Fast

Average response time under 50ms

RESTful & Simple

Clean, intuitive API design

Production Ready

Built for high availability

Where Code Becomes Autonomous Capital

Our API is more than a tool—it's a new cognitive layer for the financial stack. Abstract away global complexity and compose sophisticated financial instruments with unprecedented velocity and security.

An Engine for Financial Innovation

The Encrypia Fulxion SDK is a comprehensive engine for creating sophisticated financial products. Move from abstract concepts to live, compliant, and secure financial instruments on a global scale, without wrestling with the underlying protocol complexities.

Unified API for All Protocols

Integrate once. Access a universe of protocols like Ethereum, Solana, and more through a single, elegant API.

Enterprise-Grade Security

Build on a foundation of institutional-grade security, with MPC, hardware enclaves, and programmable policies.

High-Velocity Settlement

Our infrastructure is built for high-throughput and low-latency, ensuring your application scales effortlessly.

Axiom™: The Cognitive Layer

Use natural language to interact with our API, generate code, and automate complex financial workflows.

Code Examples
// Encrypia Fulxion SDK: Advanced Multi-Signature Wallet Operations

import { EncrypiaFulxion, WalletType, Policy } from '@encrypia-fulxion/sdk';

// Initialize the SDK with your API credentials
const encrypiaFulxion = new EncrypiaFulxion({
  apiKey: process.env.ENCRYPIA_FULXION_API_KEY,
  privateKey: process.env.ENCRYPIA_FULXION_PRIVATE_KEY,
});

async function createSecureTreasury() {
  // Define a 2-of-3 multi-signature policy for the wallet
  const policy = new Policy({
    rules: [
      { required: 2, signers: ['signer-key-1', 'signer-key-2', 'signer-key-3'] },
    ],
  });

  // Create a new multi-sig wallet for treasury operations
  const wallet = await encrypiaFulxion.wallets.create({
    type: WalletType.MULTI_SIG,
    policy: policy,
    metadata: { name: 'Corporate Treasury' },
  });

  // Propose a transaction from the new wallet
  const proposal = await encrypiaFulxion.proposals.create({
    walletId: wallet.id,
    // ... transaction details
  });

  console.log('New treasury wallet created:', wallet.id);
  console.log('Transaction proposal submitted:', proposal.id);

  return { wallet, proposal };
}

Built for Developers

Beautiful APIs, comprehensive SDKs, and world-class documentation. Start building in minutes.

Create a Wallet

3 lines to create a multi-currency HD wallet

import { FulxionClient } from '@fulxion/sdk';

const client = new FulxionClient(process.env.FULXION_API_KEY);

// Create HD wallet
const wallet = await client.wallets.create({
  user_id: 'user_123',
  currency: 'BTC',
  type: 'HD_WALLET'
});

console.log(wallet.address); // bc1q...
console.log(wallet.hd_path);  // m/44'/0'/0'/0/0

Available in your favorite language:

TypeScriptPythonRustJavaRubyPHPC#SwiftKotlin

Sub-50ms Response

Lightning-fast API

High Availability

Enterprise reliability

10+ SDKs

Every language covered

Great Docs

Examples for everything

API Reference

Complete API documentation with examples for every endpoint

Browse Docs

Interactive Tutorial

Step-by-step guide to build your first app in 15 minutes

Start Tutorial

Code Examples

100+ code examples for common use cases and patterns

View Examples

Official SDKs

🐍
Python
v1.0.0
💚
Node.js
v1.0.0
🔵
Go
v1.0.0
💎
Ruby
v1.0.0

Ready to Start Building?

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