Case Studies/Payment Gateway
Payment Gateway4 min read

PayChain processes $50M/month in crypto across 20+ blockchains

An enterprise payment processor serving Fortune 500 merchants needed to add crypto acceptance across 20+ chains — with real-time AML screening, immutable audit trails, and 99.99% uptime SLA.

💳
Client Snapshot
IndustryPayment Gateway / Processor
Merchants500+ enterprise clients
Monthly volume$50M+
ChallengeMulti-chain + enterprise compliance
ProductsBROsettlement
Integration time6 weeks
The Challenge

What they were up against.

🔗

Supporting 20+ chains was an infrastructure nightmare

Running blockchain nodes for 20+ chains — with different signing schemes, finality times, and mempool behaviors — would require a dedicated 8-person DevOps team and $500K+ in annual infrastructure costs.

🏢

Enterprise merchants demanded institutional-grade security

Fortune 500 clients required SOC 2 certification, $250M+ insurance, immutable audit logs, and RBAC controls before approving a single crypto transaction.

🛡️

Real-time AML screening at transaction level

Processing crypto for enterprise merchants required OFAC and FATF screening on every incoming transaction in real time — not in batch, not manually.

Merchants expected instant settlement confirmation

Existing payment rails delivered instant confirmation. Merchants would not accept polling-based crypto settlement — they needed WebSocket-grade real-time event delivery.

The Solution

One API endpoint. 20+ chains. Real-time everything.

BROsettlement
🔗

100+ chains via single API integration

One REST endpoint for all 20+ required chains — ETH, SOL, BNB, TON, BTC, TRON, MATIC, AVAX, and more. No node infrastructure, no chain-specific engineering.

WebSocket event streaming

Deposit confirmations, settlement events, and AML flags delivered in real time via WebSocket. Merchant settlement dashboards updated instantly — no polling.

🛡️

AML screening on every transaction

Every incoming crypto transaction screened against OFAC, FATF, and Chainalysis databases in under 500ms. AML blocks and alerts configurable per merchant.

📋

Immutable audit trail for enterprise clients

Every transaction, fee, and settlement logged immutably with full journal entries. Enterprise clients get audit-ready reports on demand — no custom builds.

Payment Gateway
Merchant portal · Settlement API · Dashboard
BROsettlement API
REST + WebSocket · Ed25519 · RBAC
AML + Compliance Engine
OFAC · FATF · Chainalysis · Travel rule
20+ Blockchains
ETH · SOL · BNB · TON · BTC · TRON · MATIC · AVAX...
Integration

How it fits into
their stack.

BroLabel integrated as an API layer between the client's product and the blockchain. Their team kept full control through RBAC — BroLabel handled MPC cryptography, multi-chain nodes, and compliance infrastructure.

📅
Sandbox to production in days
Pre-funded testnet environment let the team validate all flows before touching production assets.
🔐
Ed25519 auth secured from day one
Per-request asymmetric signing with IP whitelisting and nonce-based replay protection.
🤝
Dedicated integration support
BroLabel's integration team on Slack throughout — no ticket queue, no async delays.
Results

The numbers.

$50M/mo
crypto volume processed
at launch
20+
blockchains active
from single API integration
99.99%
uptime SLA maintained
since go-live
<500ms
AML screening per transaction
real-time, not batch
6 weeks
full integration timeline
including enterprise onboarding
0
blockchain nodes operated
no infra overhead
We were looking at an 8-person DevOps team just to run blockchain nodes. BroLabel eliminated that entirely. We integrated once and had 20+ chains live with AML screening and WebSocket events in six weeks.
V
VP Engineering, PayChain
Vice President of Engineering
Anonymized — enterprise payment gateway
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