Crypto For All

Near-zero payment fees. Real-time inventory tracking. Barcode-simple checkout.
No blockchain complexity. Built for the French butcher โ€” and every merchant like them.

118 Tests 16 Pallets 0.25% Fees Smart Contracts Solana Bridge 0% B2B v0.9
Get Started Read the Docs

Why CoCo?

The Problem: A butcher in France pays $9,000/year in card fees at 5% per transaction. Small merchants everywhere are trapped: accept cards and bleed margin, or refuse cards and lose customers. CoCo fixes this โ€” with crypto you never have to see.

๐Ÿ’ฐ Near-Zero Fees

0.25% per transaction vs 2-5% for credit cards. B2B supplier payments at 0%. A merchant doing $200K/year saves $9,500+ annually.

๐Ÿ“ฆ Real-Time Inventory

Every product is a digital twin on-chain. Scan a barcode โ†’ see full history: where it came from, who owned it, is it authentic? No more spreadsheets.

๐Ÿช Scan-to-Pay POS

One barcode scan = instant settlement at 0.25%. No terminal contract, no chargeback risk, no PCI compliance. Works offline too.

๐Ÿ“„ Smart Contracts

Deploy Wasm-based ink! contracts with KYC-gated chain extensions. Built-in PAYG, lease-to-own, and escrow templates ready to deploy.

๐Ÿ” DRM & Micro-Finance

Pay-as-you-go, lease-to-own, subscriptions, or micro-loans secured by on-chain product DRM. Lock on non-payment, unlock on payment, repossess on default.

๐Ÿ”— Solana + USDC Bridge

Deposit USDC from Solana, spend it anywhere on CoCo. Withdraw back to Solana. Relayer-secured with replay protection. Auto-yield on idle deposits.

๐Ÿ“‹ Inter-Ecosystem Supplier Orders

Butcher orders from supplier โ€” both on CoCo. Auto-PO from low stock alerts, QR scan receiving, instant payment at 0% fee. No more $25 wire fees.

๐Ÿ“ฑ Wallet You'll Actually Use

Android app with biometric auth. Linux CLI for power users. Create a wallet in 10 seconds โ€” no seed phrases to type, no gas fees to worry about.

โฐ Expiry + Markdown Engine

Auto-suggest discounts on expiring inventory: 20% at 2 days, 40% at 1 day, 60% on expiry day. One-click apply with margin analysis and CSV export.

Fee Comparison

Retail Payment ($20)

ProcessorFeeSettlement
โ˜… CoCo$0.056 seconds
Visa / Mastercard$0.50 โ€“ $0.901-2 days
MercadoPago$0.30 โ€“ $1.00Next day
PayPal$1.19Instant (holds)
Stripe$0.881-2 days

B2B Supplier Payment ($1,000 invoice)

MethodFeeSettlement
โ˜… CoCo (internal)$0.006 seconds
Wire Transfer$25 โ€“ $501-3 days
Corporate Card$20 โ€“ $30 (2-3%)1-2 days
Paper Check$5 โ€“ $105-10 days

0.25% border fee is still 10-24x cheaper than any card processor. Internal ecosystem movement is 0%. Cash doesn't give you inventory analytics, DRM enforcement, or automated supplier ordering.

How It Works

1. Scan
Barcode or QR at checkout
โ†’
2. Verify
On-chain authenticity + price
โ†’
3. Pay
0.25% fee, instant settlement
โ†’
4. Done
Receipt with QR proof of ownership

The merchant never sees a wallet address, seed phrase, or gas fee. They scan a barcode and get paid.

What Makes It Different

CapabilityCoCoTraditional
Payment Fees0.25%Visa/MC 2-5%
SettlementInstant (6 seconds)1-3 business days
ChargebacksNone (immutable)Costly & frequent
InventoryReal-time, on-chainEnd-of-day batch
Cross-chainSolana, USDC, USDTSiloed
Merchant SetupScan barcode โ†’ doneTerminal, contract, PCI audit

Join the Community

CoCo is open-source (Apache 2.0). Follow us, contribute, or just say hi.

Get Started in 2 Minutes

๐Ÿ“– Read the Docs

Complete API reference, pallet documentation, architecture overview, build guide.

Open Documentation โ†’

๐Ÿ’ป Run a Local Node

Clone the repo, build the chain, run a dev node. Full Substrate node with Aura + Grandpa consensus.

git clone https://github.com/company-coin/coco-substrate
cd coco-substrate && ./scripts/build.sh
./scripts/run-dev.sh

๐Ÿ“ฑ Get the Wallet

Android app with wallet, scanner, and POS integration. Linux CLI wallet for developers.

Download APK โ†’ CLI Wallet โ†’

๐Ÿ”— Use the Bridge

Deposit USDC from Solana to CoCo, withdraw back. Full relayer-secured bridge with replay protection.

Bridge spec: SOLANA_BRIDGE_SPEC.md