Crypto Payment Gateway Development Company

OmiSoft builds custom crypto payment gateways from the protocol layer up — no white-label scripts, no clone deployments, no infrastructure shared with other operators. Every engagement produces a production-grade payment system with KYC/AML compliance by design, stablecoin settlement built into the architecture from day one, and a custody model matched to your regulatory position. We support all gateway configurations: self-hosted non-custodial, custodial hosted, white-label multi-tenant, API-embedded, and iGaming-optimized.
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Crypto payment gateway development hero
KYT
AML-Ready Architecture
100%
Job Success on Upwork
25+
Crypto Products Shipped
97%
Customer Satisfaction

GATEWAY TYPES

Crypto Payment Gateway Types We Build for iGaming, Fintech and Commerce Teams

OmiSoft scopes each gateway to the operator's custody model, compliance surface, and settlement requirements — the architecture, chain selection, and integration layer are defined by your use case, not a template.

  1. Self hosted non custodial crypto gateway

    Self-Hosted Non-Custodial Gateway

    A non-custodial gateway never holds your funds — incoming payments go directly to wallet addresses you control. The gateway software monitors the blockchain, confirms transactions against invoices, fires webhooks, and updates balances without any intermediary holding period. Zero counterparty risk, zero account freeze exposure. The right architecture for operators who want full custody of their payment flow and no dependency on a third-party financial infrastructure to keep processing.

    • Per-invoice address generation with expiry
    • On-chain confirmation monitoring and webhook callbacks
    • Merchant-controlled wallet infrastructure
  2. Custodial hosted crypto payment gateway

    Custodial Hosted Gateway

    A custodial gateway holds incoming crypto on behalf of merchants before settlement — providing a managed treasury layer between incoming player/customer payments and outgoing fiat or stablecoin transfers. The operator controls the settlement schedule, conversion logic, and risk rules. This is the standard architecture for payment service providers, crypto PSPs, and gaming platforms that want to offer payment processing as a managed service to their merchants.

    • Multi-merchant sub-account management
    • Configurable settlement schedule — real-time, daily, or batched
    • Fiat conversion and stablecoin settlement options
  3. White label multi tenant crypto gateway

    White-Label Multi-Tenant Gateway

    A white-label multi-tenant gateway allows the operator to onboard sub-merchants under their own brand — providing crypto payment processing as a service without exposing the underlying infrastructure. Each merchant operates in an isolated account with separate wallets, transaction ledgers, and API keys. The operator controls merchant onboarding, compliance tiers, and fee structures. Standard architecture for crypto PSPs and payment facilitators entering the market.

    • Merchant onboarding with configurable KYC tiers
    • Isolated ledger and wallet per sub-merchant
    • Operator-branded merchant dashboard and documentation
  4. Api embedded crypto payment module

    API-Embedded Payment Module

    Payment functionality delivered as a clean API layer inside an existing SaaS product, marketplace, or platform — without the host application becoming a licensed financial entity. The regulated and custody layer sits at the infrastructure level; the product team accesses deposit, withdrawal, and balance functions via REST API and webhooks. The right architecture for marketplaces running crypto payouts, vertical SaaS platforms adding payment rails, and B2B tools that need stablecoin settlement without building a standalone gateway.

    • REST API with webhook-driven payment notifications
    • Marketplace payout and balance distribution
    • Stablecoin settlement via USDT/USDC rails
  5. Igaming crypto payment gateway optimized

    iGaming-Optimized Gateway

    Purpose-built for casino and sportsbook operators who cannot use traditional card processors. TRON/TRC-20 is the settlement layer of choice — 3-second block time, sub-$1 fees, and USDT as the de facto player deposit currency. The gateway integrates with the platform's player wallet, handles instant deposits and withdrawals, and includes automated KYC/AML controls that meet licensing requirements without adding friction to onboarding. Settlement happens in stablecoins to eliminate volatility, with crypto-to-fiat conversion available as an operator option.

    • TRON/TRC-20 stablecoin-first architecture — USDT, USDC
    • Player wallet integration with instant deposit/withdrawal
    • Automated AML monitoring with configurable risk thresholds

Core Features

Crypto Payment Gateway Features That Support Security, Compliance and Scale

Payment systems fail in predictable places — KYC flows that leak, settlement engines that drift under load, compliance added after the product ships. These four areas are where we build differently.

KYT/AML Transaction Monitoring

Automated KYC/AML processes integrated at the payment layer — not bolted on post-launch. Incoming transactions are screened against sanctions lists and watchlist feeds in real time. On-chain analytics flag high-risk addresses, mixer outputs, and darknet-adjacent wallets before funds reach the operator's balance. Risk-scoring rules are configurable by your compliance team without engineering involvement. FATF Travel Rule exchange is supported for cross-VASP transfers.

Multi-Chain Payment Router

Per-invoice address generation across supported chains — BTC, ETH, TRON, Solana, and EVM-compatible networks — with confirmation monitoring at the infrastructure level. The router detects incoming transactions against active invoices, validates confirmation counts against configurable thresholds, and fires webhook events as blockchain state changes. Rate lock at payment initiation prevents underpayment caused by price movement between invoice generation and confirmation.

Settlement & Volatility Protection Engine

Settlement decisions are explicit, never automatic. Operators choose between holding received crypto, converting to stablecoins — USDT, USDC — at confirmation, or batching fiat conversion on a schedule. Rate lock at invoice generation pins the expected payment amount — customers pay a fixed crypto equivalent at checkout, not a moving target. Cross-border settlement runs via stablecoin rails, bypassing SWIFT latency and correspondent banking overhead.

Merchant API & Operations Dashboard

Full REST API with comprehensive webhook coverage — payment received, confirmed, settled, and failed events produce structured callbacks with retry logic. Invoice management, payout scheduling, and reconciliation reports are available through the operator dashboard without engineering involvement for routine operations. Transaction ledgers are append-only and immutable — every state change has a timestamp and audit trail available for compliance review.

Our Cases

Crypto Payment Products We've Shipped for iGaming, Web3 and Fintech Teams

OmiSoft sits at the intersection of payment engineering, blockchain infrastructure, and compliance architecture — experience from production iGaming payment gateways, cross-chain wallets, and trading settlement systems comes to every new engagement from the first architecture call.

Build Your Gateway With Us

Secure Multi-Chain Crypto Wallet with Fiat Integration and Cross-Chain Trading

Developed a Colombian cross-chain crypto wallet with major blockchain integration, fiat on-ramps, and full app store compliance.

2500 +
hours of development
85 K
Project Budget
7
person expert team
Explore Case
ScratchApp

WHAT WE DO

Full-Stack Crypto Payment Gateway Development Services

OmiSoft handles every layer of crypto payment gateway delivery — payment architecture, chain integration, compliance infrastructure, merchant tooling, and security audit — in a single engagement with one technical team. No handoffs to blockchain specialists mid-project, no integration debt between the settlement layer and the merchant-facing API.

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  1. Payment Architecture & Settlement Design

    The settlement engine is the financial source of truth for everything the gateway does — every deposit, every withdrawal, every reconciliation event. We design custody models, settlement schedules, and conversion logic before writing a line of application code. Architecture decisions cover wallet infrastructure type — hot, cold, or MPC — rate-lock mechanics to prevent underpayment, and fiat off-ramp integration where stablecoin-only settlement is not sufficient. The system survives chain congestion, provider outages, and retry storms without producing duplicate payouts or missed credits.

  2. KYC / AML Integration

    We integrate identity verification vendors and on-chain analytics tools into the payment flow and configure automated KYC/AML processes for ongoing transaction monitoring. This covers document verification and biometric liveness at onboarding, real-time KYT screening on incoming transactions, PEP and sanctions watchlist checks, and risk-scoring rules that your compliance team can tune without engineering involvement. Onboarding flows are calibrated to pass licensing authority review without the friction that collapses conversion rates at deposit.

  3. Multi-Chain & Stablecoin Integration

    Production integration across supported chains — BTC, ETH, TRON, Solana, and EVM-compatible networks — is built on our cryptocurrency development infrastructure, with per-invoice address generation, confirmation monitoring, and balance accounting handled at the infrastructure level. Stablecoin support — USDT TRC-20, USDT ERC-20, USDC — is a first-class feature, not a bolt-on: settlement, payouts, and operator treasury management can all run on stablecoin rails from day one. Chain selection is scoped during architecture design against your user geography and transaction volume targets.

  4. Merchant API & Dashboard Development

    The merchant-facing layer covers a REST API with full webhook coverage for payment lifecycle events, an operator dashboard for transaction monitoring, payout scheduling, and reconciliation, and sub-merchant management for white-label deployments. API documentation is delivered as an OpenAPI spec. Sandbox environment for merchant integration testing is included in the engagement. We handle end-to-end delivery — API design, dashboard build, documentation, and integration support — without separating the backend and frontend into separate contractors.

  5. Security & Compliance Infrastructure

    Security is designed into the architecture from the first infrastructure decision, not applied as a post-launch audit. Hot wallet exposure is minimized through cold storage thresholds configured at the architecture stage. TLS 1.3 for all data in transit, AES-256 encryption at rest, and audit-ready logging configurations are standard — not line items on a change request. For DeFi-style gateway flows, settlement via smart contract rails is scoped together with contract audit requirements, access control, and failure-state handling. Penetration testing scope and access control design are included in the engagement. For operators pursuing licensing, we document the compliance architecture in a format suitable for regulator review.

Not sure which gateway architecture fits your product?

Self-hosted, custodial, white-label or iGaming-optimized — we'll map the right custody model and settlement architecture to your use case in one call.

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TAILORED SOLUTIONS

Crypto Gateway Architecture: Self-Hosted, Custodial, White-Label and iGaming-Optimized

Custody model choice determines everything downstream: your regulatory footprint, your settlement options, your compliance surface, and how fast you can ship. Getting this decision right at the start is the difference between a gateway that scales with your business and one that needs to be rebuilt when your volume grows.

Self-Hosted Non-Custodial

Funds go directly to merchant-controlled wallets — no third-party custody, no counterparty risk, no freeze exposure. The gateway monitors the blockchain and fires events without holding operator funds. Best for:

  • Operators prioritizing custody control
  • High-risk merchants, no platform lock-in
  • Privacy-first payment flows

Custodial Hosted

The operator holds incoming crypto before settlement — enabling fiat conversion, scheduled payouts, and managed risk controls unavailable in non-custodial architectures. Carries VASP obligations in most jurisdictions. Best for:

  • Crypto PSPs and payment facilitators
  • Operators offering managed settlement to merchants
  • Platforms needing fiat off-ramp integration

White-Label Multi-Tenant

Sub-merchants access payment infrastructure under the operator's brand — isolated wallets, ledgers, and API credentials per account, with configurable fees and compliance tiers. Best for:

  • Crypto PSPs entering the market
  • Payment facilitators with merchant networks
  • iGaming groups with multiple operator brands

iGaming-Optimized Gateway

TRON/TRC-20 stablecoin architecture as primary settlement rail — 3-second confirmations, sub-$1 fees, USDT as default deposit currency, AML calibrated for gambling patterns. Best for:

  • Online casinos and sportsbooks
  • Crypto-native betting platforms
  • Gaming operators in restricted banking jurisdictions

WHY OMISOFT

Why Teams Choose OmiSoft for Crypto Payment Gateway Development

The team building your gateway has shipped a production crypto payment gateway for a global iGaming operator. Every problem you'll face — a KYC flow that converts at deposit but survives compliance review, a settlement engine that holds under high-frequency betting volume, a multi-chain router that handles chain congestion without stuck transactions — is a problem we've already solved for another client. We bring those decisions to the first architecture call, not to a retrospective six months into the project. The payment gateway practice sits within a broader fintech software development offering — the same engineering standards apply across the full fintech and crypto stack.

  1. iGaming-Ready from Day One

    Production experience building payment infrastructure for casino and sportsbook operators — KYC flows calibrated for gambling onboarding, TRON/stablecoin settlement for instant deposit/withdrawal, AML rules tuned for betting transaction patterns. No learning curve on your budget.

  2. Settlement Architecture Before Code

    Custody model, rate-lock mechanics, settlement schedule, and fiat off-ramp decisions are scoped before a line of application code is written. Settlement debt — building the payment flow and redesigning the settlement layer later — is the most expensive mistake in gateway development.

  3. KYT / AML by Design

    Automated KYC/AML processes integrated at the payment layer from the first transaction schema decision — not bolted on post-launch. On-chain transaction monitoring, sanctions screening, and risk-scoring rules that compliance teams can tune without engineering involvement.

  4. Full-Stack Delivery

    Architecture, blockchain integration, settlement engine, merchant API, compliance tooling, and operator dashboard — one team, one engagement, no handoffs between frontend and backend contractors.

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FAQ

Frequently asked questions

How do I hire crypto payment gateway developers for my project?

The process starts with a technical scoping call where we review your custody model preference, target markets, compliance requirements, and chain selection. From that call we produce a scoped proposal covering architecture, timeline, and fixed pricing — typically within five business days. Engagements run with a dedicated team of 3–5 engineers depending on scope, with a technical lead as your primary contact throughout. All source code and IP transfers to you at delivery.

How long does it take to build a crypto payment gateway?

A single-chain MVP gateway — self-hosted non-custodial or basic custodial architecture with KYC integration — typically ships in 8 to 12 weeks from contract to production deployment. A production multi-chain gateway with stablecoin settlement, full KYT/AML stack, and white-label multi-tenant architecture runs 12 to 18 weeks. Enterprise PSP platforms with multi-jurisdiction compliance and MPC wallet infrastructure are scoped individually. We provide a scoped timeline estimate before any contract is signed.

How much does crypto payment gateway development cost?

Crypto payment gateway development starts at $25,000 for a single-chain MVP with basic KYC integration and webhook-driven payment notifications. Production multi-chain gateways with stablecoin settlement, automated KYT monitoring, and white-label architecture typically start at $65,000. Enterprise PSP platforms with multi-jurisdiction compliance, MPC wallet infrastructure, and SLA-backed support are scoped individually. All pricing is delivered as a fixed-scope proposal after a technical discovery session — not an hourly rate estimate.

What compliance standards does a crypto payment gateway need to meet?

Requirements depend on the custody model and target jurisdictions. Custodial gateways that hold funds on behalf of merchants qualify as Virtual Asset Service Providers under FATF Recommendation 15 — which triggers AML program requirements and FATF Travel Rule obligations — Recommendation 16 — for cross-VASP transfers. In the EU, MiCA requires CASP authorization from national regulators. US-based custodial models require FinCEN MSB registration plus state-level money transmitter licenses. Self-hosted non-custodial architectures reduce the operator's compliance surface significantly. We identify the full compliance footprint during technical discovery and design the architecture to minimize scope from the start.

What is the difference between custodial and non-custodial crypto payment gateways?

A non-custodial gateway never touches your funds — incoming payments go directly from the customer's wallet to a wallet address you control. The gateway software observes the blockchain and fires events without any intermediary holding period. Zero counterparty risk, lowest regulatory overhead. A custodial gateway holds incoming crypto on behalf of merchants before settlement — enabling managed treasury operations, fiat conversion, and scheduled payouts that non-custodial architectures cannot provide. Custodial models carry VASP/AML obligations in most jurisdictions. The right model depends on your use case, volume, and regulatory position — we scope this at the architecture stage, not after the payment flow is built.

Can you build an iGaming crypto payment gateway?

Yes. We have production experience building crypto payment infrastructure for iGaming operators. The standard iGaming gateway architecture uses TRON/TRC-20 stablecoin settlement — USDT — as the primary rail — 3-second confirmations, sub-$1 fees, and instant player balance credit. For operators building on a Web3 casino platform, we integrate the gateway with player wallet systems, configure automated KYC/AML processes calibrated for gambling transaction patterns, and design the compliance documentation for licensing authority review. Gateway access for players who prefer to pay with Bitcoin, Ethereum, or other assets is supported alongside the primary stablecoin rail.

Who owns the source code after delivery?

The client holds full ownership of the source code and all intellectual property delivered during the project — gateway architecture, settlement engine, merchant API, smart contracts, and operator dashboard. You receive the full codebase, not a licensed deployment. You can modify it, extend it, or hand it to a different team without restriction. This is written into the contract before work begins.