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Documentation Index

Fetch the complete documentation index at: https://docs.raydium.io/llms.txt

Use this file to discover all available pages before exploring further.

What this does. Creates a brand-new CPMM pool for two mints you specify, picks the 0.25% fee tier, seeds initial liquidity at the price implied by the seed amounts, and prints the new pool ID and tx signature.

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Setup

Make sure you’ve read the Quick start prerequisites and have RPC_URL, KEYPAIR, and the deps installed. You’ll also need to fund the wallet with the seed amounts of both mints, plus enough SOL to cover the one-time pool-creation fee (~0.15 SOL on mainnet, see reference/program-addresses for the current value).

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The script

Save as create-cpmm.mjs: 
// create-cpmm.mjs
import { Connection, Keypair, PublicKey } from "@solana/web3.js";
import {
  Raydium,
  TxVersion,
  CREATE_CPMM_POOL_PROGRAM,
  CREATE_CPMM_POOL_FEE_ACC,
} from "@raydium-io/raydium-sdk-v2";
import BN from "bn.js";
import fs from "node:fs";

// ── Config from env ──────────────────────────────────────────────
const RPC_URL  = process.env.RPC_URL  ?? "https://api.mainnet-beta.solana.com";
const KEYPAIR  = process.env.KEYPAIR  ?? `${process.env.HOME}/.config/solana/id.json`;
const MINT_A   = process.env.MINT_A;   // required, base58
const MINT_B   = process.env.MINT_B;   // required, base58
const AMOUNT_A = process.env.AMOUNT_A; // required, integer raw units
const AMOUNT_B = process.env.AMOUNT_B; // required, integer raw units

if (!MINT_A || !MINT_B || !AMOUNT_A || !AMOUNT_B) {
  console.error("Set MINT_A, MINT_B, AMOUNT_A, AMOUNT_B env vars.");
  process.exit(1);
}

// ── Setup ────────────────────────────────────────────────────────
const connection = new Connection(RPC_URL, "confirmed");
const owner = Keypair.fromSecretKey(
  new Uint8Array(JSON.parse(fs.readFileSync(KEYPAIR, "utf8"))),
);
const raydium = await Raydium.load({
  owner,
  connection,
  cluster: "mainnet",
  disableFeatureCheck: true,
  blockhashCommitment: "finalized",
});

// ── Pick the 0.25% fee tier ─────────────────────────────────────
const feeConfigs = await raydium.api.getCpmmConfigs();
const feeConfig  = feeConfigs.find((c) => c.index === 0);
if (!feeConfig) throw new Error("0.25% fee tier not found in CPMM configs.");

// ── Resolve mint metadata (Token-2022-aware) ────────────────────
const mintA = await raydium.token.getTokenInfo(new PublicKey(MINT_A));
const mintB = await raydium.token.getTokenInfo(new PublicKey(MINT_B));

// ── Build and execute ───────────────────────────────────────────
const { execute, extInfo } = await raydium.cpmm.createPool({
  programId:       CREATE_CPMM_POOL_PROGRAM,
  poolFeeAccount:  CREATE_CPMM_POOL_FEE_ACC,
  mintA,
  mintB,
  mintAAmount:     new BN(AMOUNT_A),
  mintBAmount:     new BN(AMOUNT_B),
  startTime:       new BN(0), // open immediately
  feeConfig,
  associatedOnly:  false,
  ownerInfo:       { useSOLBalance: true },
  txVersion:       TxVersion.V0,
  computeBudgetConfig: {
    units: 600_000,
    microLamports: 100_000,
  },
});

const { txId } = await execute({ sendAndConfirm: true });

console.log(`Pool ID:  ${extInfo.address.poolId.toBase58()}`);
console.log(`LP mint:  ${extInfo.address.lpMint.toBase58()}`);
console.log(`Vault A:  ${extInfo.address.vaultA.toBase58()}`);
console.log(`Vault B:  ${extInfo.address.vaultB.toBase58()}`);
console.log(`Tx:       https://solscan.io/tx/${txId}`);

​
Run it

Example: create a SOL/USDC pool with 1 SOL and 160 USDC seed: 
export MINT_A="So11111111111111111111111111111111111111112"   # wSOL
export MINT_B="EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v"   # USDC
export AMOUNT_A="1000000000"   # 1 SOL (9 decimals)
export AMOUNT_B="160000000"    # 160 USDC (6 decimals)

node create-cpmm.mjs
Expected output: 
Pool ID:  HgC5...3kXb
LP mint:  4ZAS...9rkV
Vault A:  J9Mu...mP2k
Vault B:  AaJq...8wxx
Tx:       https://solscan.io/tx/5dQ...

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What just happened

  1. getCpmmConfigs pulled the live list of fee tiers from api-v3.raydium.io and picked index 0 (the 0.25% tier — see reference/fee-comparison for the full set).
  2. getTokenInfo resolved each mint’s metadata, including which token program owns it. CPMM accepts both SPL Token and Token-2022 mints; the SDK routes automatically.
  3. createPool built one transaction that:
    • sorts the mints into canonical order,
    • derives the pool PDA, vaults, LP mint, and authority,
    • pays the one-time create_pool_fee to CREATE_CPMM_POOL_FEE_ACC,
    • creates the caller’s ATAs if missing,
    • seeds the vaults with AMOUNT_A and AMOUNT_B.
  4. The initial price is set by the seed ratio: price = AMOUNT_B / AMOUNT_A after decimal adjustment. Pick this carefully — bots will arbitrage any mispricing within seconds of the pool opening.
  5. startTime: new BN(0) opens trading immediately. To stage liquidity before opening to the public, set a future Unix timestamp.

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Common errors

  • pool already exists — A pool already exists for this mint pair at this fee tier. Look it up before creating.
  • insufficient funds — Your wallet doesn’t have enough of MINT_A, MINT_B, or SOL (for the create-pool fee + rent).
  • Token-2022 extension not supported — One of your mints uses an extension CPMM doesn’t accept. See reference/token-2022-support.

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After deploy

You can immediately swap against the new pool — the Swap from CLI script accepts your new POOL_ID directly. Aggregators (Jupiter, etc.) will index the new pool within minutes.

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