Solana Mock Stablecoin Factory — OTC Desk Devnet Setup

Create multiple mock stablecoin mints on Solana devnet with proper metadata, so Phantom/Solflare display them with correct names, symbols, and logos.

What this creates

Symbol	Name	Decimals	Token Program
USDC	USD Coin (Mock)	6	Token-2022
USDT	Tether USD (Mock)	6	Token-2022
EURC	Euro Coin (Mock)	6	Token-2022
PYUSD	PayPal USD (Mock)	6	Token-2022
USDG	Global Dollar (Mock)	6	Token-2022
CHF	Swiss Franc (Mock)	6	Token-2022
GBP	British Pound (Mock)	6	Token-2022
JPY	Japanese Yen (Mock)	6	Token-2022
SGD	Singapore Dollar (Mock)	6	Token-2022
AED	UAE Dirham (Mock)	6	Token-2022

Each mint gets 1,000,000 tokens minted to your wallet.

Prerequisites

# Install Solana CLI
sh -c "$(curl -sSfL https://release.anza.xyz/stable/install)"

# Install Node.js >= 18
# https://nodejs.org

# Configure for devnet
solana config set --url https://api.devnet.solana.com

# Create or import a keypair
solana-keygen new --outfile ~/.config/solana/id.json
# OR if you already have one:
# solana config set --keypair ~/.config/solana/id.json

# Fund your wallet with devnet SOL
solana airdrop 2

Quick Start (Option A — Shell Script)

Fastest way. Uses spl-token CLI directly.

chmod +x create-mocks.sh
./create-mocks.sh

This outputs a mint-addresses.json you can import into your OTC desk code.

Full Setup (Option B — TypeScript with Metadata)

Creates Token-2022 mints with on-chain metadata so wallets display proper names, symbols, and URIs.

npm install
npx ts-node create-mocks-with-metadata.ts

Using in your OTC desk

After running either script, import the generated config:

import mints from './mint-addresses.json';

// mints looks like:
// {
//   "USDC": { "mint": "ABC123...", "decimals": 6, "name": "USD Coin (Mock)" },
//   "CHF":  { "mint": "DEF456...", "decimals": 6, "name": "Swiss Franc (Mock)" },
//   ...
// }

// Transfer mock USDC for mock CHF — your OTC swap
const usdcMint = new PublicKey(mints.USDC.mint);
const chfMint  = new PublicKey(mints.CHF.mint);

Minting more tokens

# Mint 500,000 more mock USDC to your wallet
spl-token mint <USDC_MINT_ADDRESS> 500000 --program-id TokenzQdBNbLqP5VEhdkAS6EPFLC1PHnBqCXEpPxuEb

# Mint to a different wallet
spl-token mint <USDC_MINT_ADDRESS> 500000 -- <RECIPIENT_TOKEN_ACCOUNT>

Mixing with real devnet tokens

Your OTC desk can use BOTH real and mock tokens:

Token	Mint Address	Source
USDC (real devnet)	4zMMC9srt5Ri5X14GAgXhaHii3GnPAEERYPJgZJDncDU	faucet.circle.com
EURC (real devnet)	via Circle faucet	faucet.circle.com
PYUSD (real devnet)	CXk2AMBfi3TwaEL2468s6zP8xq9NxTXjp9gjMgzeUynM	faucet.paxos.com
CHF (mock)	from this script	self-minted
GBP (mock)	from this script	self-minted
JPY (mock)	from this script	self-minted
SGD (mock)	from this script	self-minted
AED (mock)	from this script	self-minted