Unified Blockchain & Cross-Border Infrastructure

From any asset
to any bankin one API

Monitor wallets, execute transactions, convert assets, and settle funds globally — through a single infrastructure layer.

36+
Blockchains
75+
Countries
300+
Tokens
Real-time
Webhooks
FluxRail
Wire·SWIFT·Local·M-Pesa
any asset → local bank · 3 API calls
# 1. Provision a customer — they receive a unique deposit address
POST /api/v1/payouts/customers
  {"email":"amara@company.com","country":"US","services":["payouts"]}
# ← {"deposit_address": "0x4f2a9c...", "kyc_link_url": "https://..." }

# 2. Trigger the offramp — send any supported asset, settle to any market
POST /api/v1/payouts/offramp
  {"customer_id":"cus_xxx","source_asset":"ETH","source_amount":"1.5","target_currency":"USD"}
# ← {"deposit_address": "0x4f2a9c...", "status": "pending" }

# 3. Customer sends ETH on-chain → FluxRail settles fiat to their bank
GET /api/v1/payouts/offramp/:id
# ← {"status": "completed", "target_amount": "4485.00", "currency": "USD" }

Stop stitching together five integrations.
Use one.

Wallet monitoring, on-chain execution, asset conversion, and global bank settlement — one platform, one API key, one consistent interface across all four layers.

36+
Blockchains
300+
Tokens
75+
Countries
SWIFT
+ Local Rails
Bank Transfers
Real-time
No polling
Webhooks

Four products. One platform.

Each layer works independently or together — from detecting a deposit to settling funds in a bank account on the other side of the world.

Core

Monitoring & Webhooks

Never miss a transaction. Add any wallet address and get notified the instant funds move — on any of 36 supported blockchains. No polling. No missed deposits. Just real-time events, signed and delivered.

  • —HD wallet generation across EVM, Bitcoin, TRON, Solana
  • —Real-time deposit & withdrawal detection
  • —HMAC-signed webhooks with exponential retry
  • —36+ chains: all major EVM networks, BTC, TRON, SOL
Build with this: Crypto payment processors · Deposit alerts · Wallet tracking
Explore Core

Pay

Transfers & Paymaster

Send stablecoins across TRON and EVM networks without making your users manage gas. The Paymaster API sponsors transaction fees transparently — your users just transact, you cover the rest.

  • —USDT & USDC on TRC20, ERC20, BEP20, Polygon
  • —Gas sponsorship — zero gas friction for your users
  • —Flat, predictable fee structure per transfer
  • —Multi-fallback RPC execution for reliability
Build with this: Gasless wallets · B2B stablecoin settlement · Payment links
Explore Pay

Liquidity

Asset Conversion

Accept any token. Receive any other. Get a real-time quote with a locked rate, send funds to the deposit address, and FluxRail delivers the converted amount to your destination wallet. 300+ pairs supported.

  • —300+ token pairs with live market pricing
  • —Locked-rate quotes — no slippage surprises
  • —Deliver converted funds to any destination wallet
  • —Track swap status through to settlement
Build with this: Token swaps · Fee auto-conversion · DCA tools · Rebalancing
Explore Liquidity

Payouts

Fiat Settlement

Your users send crypto. Their bank account receives local currency. SWIFT, local bank transfers, and Africa mobile money across 75+ countries — with KYC orchestration built in so you don't have to build it.

  • —Accept any supported crypto asset
  • —SWIFT international + local bank transfers
  • —Africa: M-Pesa, mobile money, direct local rails
  • —KYC orchestration & identity verification built in
Build with this: Freelancer payouts · Remittance apps · Off-ramps · Payroll
Explore Payouts

What teams build on FluxRail

From solo developers to fintech scale-ups — one platform handles the entire money movement stack.

Freelancer & Gig Platforms

Pay contractors in their local currency, regardless of how your platform holds funds. Workers receive a payout — not a crypto lesson. SWIFT and local bank transfers to 75+ countries.

Payouts

Exchanges & Trading Apps

Detect user deposits the moment they land on-chain, convert to the asset your system needs, and execute withdrawals — without managing your own RPC nodes, wallets, or liquidity infrastructure.

Core Pay Liquidity

Web3 Games & Apps

Let users earn in-game assets and cash out to their bank account. They don't need a crypto wallet — they just withdraw and receive fiat. No blockchain complexity on your users' side.

Core Liquidity Payouts

Treasury & Operations

Automate multi-chain treasury operations — monitor balances across every chain, convert assets at real-time rates, and settle directly to bank accounts globally. All from one API.

Core Liquidity Payouts

Built for developers who ship fast

One API key unlocks all four layers. Every endpoint follows the same REST pattern. Every webhook uses the same HMAC format. There's nothing new to learn as you add capabilities.

One key, everything unlocked
The same API key works for Core, Pay, Liquidity, and Payouts. No per-service credentials to manage.
HMAC-signed webhooks
Every event is signed with your secret and retried with exponential backoff. Delivery is guaranteed.
Complete documentation
Interactive docs with working code examples in cURL, JavaScript, and Python for every endpoint.
Security-first by default
AES-256 encryption at rest, immutable audit logs, and role-based access control on every account.
# One key. Same pattern across every layer.

# Watch a wallet for incoming deposits
POST /api/v1/core/wallets/watch
  X-API-Key: flux_live_xxxxxxxxxxxxxx

# Send stablecoins on-chain
POST /api/v1/pay/transfer
  X-API-Key: flux_live_xxxxxxxxxxxxxx

# Convert ETH to BTC
POST /api/v1/liquidity/quote
  X-API-Key: flux_live_xxxxxxxxxxxxxx

# Settle crypto as fiat to a bank account
POST /api/v1/payouts/offramp
  X-API-Key: flux_live_xxxxxxxxxxxxxx

Build the future of money movement

From blockchain transactions to global bank settlement — one integration, one API, one platform.

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