Key Addresses - Coinbase Developer Documentation

This page lists all deployed addresses for the Stableswapper program. Reference these when constructing transactions or integrating with the contract.

These docs currently show devnet/testnet addresses only. Do not use these addresses on mainnet. Mainnet addresses will be provided during your production onboarding.

Ethereum Virtual Machine
Solana Virtual Machine

Contract

Network	Contract Address
Base Sepolia	`0x57AB1E2c6289aCe985Bd5c5571EbF6d98CD41Ab7`

Token Addresses

Network	Token	Address
Base Sepolia	USDC	`0x036CbD53842c5426634e7929541eC2318f3dCF7e`
Base Sepolia	CBTUSD	`0x57AB1EFE59b1C7b36b1Dc9315B4782bCcBb83721`

CBTUSD is a testnet custom stablecoin on Base Sepolia, used as the example token throughout this documentation. Your custom stablecoin address will be provided separately during onboarding.

Program

Network	Program ID
Solana Devnet	`9vDwZVJXw5nxymWmUcgmNpemDH5EBcJwLNhtsznrgJDH`

Token Mints

Network	Token	Mint Address
Solana Devnet	USDC	`4zMMC9srt5Ri5X14GAgXhaHii3GnPAEERYPJgZJDncDU`
Solana Devnet	CBTUSD	`5P6MkoaCd9byPxH4X99kgKtS6SiuCQ67ZPCJzpXGkpCe`

CBTUSD is a testnet custom stablecoin, used as the example token throughout this documentation. Your custom stablecoin mint address will be provided separately during onboarding.

Program Derived Addresses (PDAs)

These accounts are deterministically derived from the program ID using the seeds shown. You do not need to store them — derive them at runtime using PublicKey.findProgramAddressSync.

Account	Address	Seeds	Role
Pool	`68xwTJYRyUdULbb5ve4JMWTc2xvw9wQmtEj9GRoHSenF`	`["liquidity_pool"]`	Central pool state — holds fee rate, fee recipient, and supported vault list

Token vaults and vault token accounts are derived per-mint at runtime:

// Vault PDA (logical owner for a token's reserves)
const [vault] = PublicKey.findProgramAddressSync(
  [Buffer.from("token_vault"), pool.toBuffer(), mintAddress.toBuffer()],
  programId
);

// Vault Token Account (where reserves actually live)
const [vaultTokenAccount] = PublicKey.findProgramAddressSync(
  [Buffer.from("vault_token_account"), vault.toBuffer()],
  programId
);

Constant Program Addresses

These well-known Solana program addresses are required as accounts in every swap instruction.

Program	Address
SPL Token Program	`TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA`
Associated Token Program	`ATokenGPvbdGVxr1b2hvZbsiqW5xWH25efTNsLJA8knL`
System Program	`11111111111111111111111111111111`

Privacy notice: All transactions on devnet and testnet blockchains are publicly visible. To protect your privacy during testing, we recommend using a dedicated test wallet rather than a personal wallet, as your wallet address and transaction history may be viewable by anyone on the blockchain.

​Contract

​Token Addresses

​Program

​Token Mints

​Program Derived Addresses (PDAs)

​Constant Program Addresses

Contract

Token Addresses

Program

Token Mints

Program Derived Addresses (PDAs)

Constant Program Addresses