The program is still in the process of being audited.

Meteora Constant Product AMM (DAMM v2)

MCPA is a brand new AMM program of Meteora that includes almost all features from dynamic-amm v1 with new features:

• Fixed hot account issue from dynamic-amm v1, each pool includes a set of unique accounts for swap instruction (no shared accounts between 2 pools)
• Support for token2022. All token2022 with metadata pointer and transfer fee extensions are supported permissionlessly. Token mints with other extensions can be whitelisted by Meteora's admin
• Fee is not compounded on LP, which allows us to implement many cool features like: collecting fee only in one token (aka SOL), position NFT, creating permanent lock for position but still being able to claim fee
• Support for base fee scheduler and dynamic fee. In fee scheduler we support 2 modes: linear or exponential, while dynamic fee is based on volatility when users trade with the pool
• Support for a minimal version of concentrated liquidity, where the pool is constant-product but has a price range, allowing liquidity to be more concentrated, hence bringing more volume to pool

Endpoints

Admin

• create_config: create a config key that includes all pre-defined parameters when user create pools with that config key.
• create_token_badge: whitelist token mint, that has non-permissionless extensions (token2022)
• create_claim_fee_operator: whitelist an address to claim protocol fee
• close_claim_fee_operato: unwhitelist the address to claim protocol fee
• close_config: close a config key
• initialize_reward: initialize an on-chain liquidity mining for a pool
• update_reward_funder: update a whitelisted address to fund rewards for on-chain liquidity mining
• update_reward_duration: update reward duration for liquidity mining
• set_pool_status: enable or disable pools. If pool is disabled, user can only be able to withdraw, can't add liquidity or swap

Keeper to claim protocol fee

• claim_protocol_fee: claim protocol fee to Meteora's treasury address

Token team (who run on-chain liquidity mining)

• fund_reward: fund reward for on-chain liquidity mining
• withdraw_ineligible_reward: withdraw ineligible reward

Partner (aka Launchpad)

• claim_partner_fee: claim partner fee

Token deployer

• initialize_pool: create a new pool from a config key
• initialize_customizable_pool: create a new pool with customizable parameters, should be only used by token deployer, that token can't be leaked.

Liquidity provider

• create_position: create a new position nft, that holds liquidity that owner will deposit later
• add_liquidity: add liquidity to a pool
• remove_liquidity: remove liquidity from a pool
• remove_all_liquidity: remove all liquidity from a pool
• claim_position_fee: claim position fee
• lock_position: lock position with a vesting schedule
• refresh_vesting: refresh vesting schedule
• permanent_lock_position: lock position permanently
• claim_reward: claim rewards from on-chain liquidity mining

Trading bot/ user swap with pools

• swap: swap with the pool

Config key state

• vault_config_key: alpha-vault address that is able to buy pool before activation_point
• pool_creator_authority: if this address is non-default, then only this address can create pool with that config key (for launchpad)
• pool_fees: includes base fee scheduler, dynamic-fee, protocol fee percent, partner fee percent, and referral fee percent configuration
• activation_type: determines whether pools are run in slot or timestamp
• collect_fee_mode: determines whether pool should collect fees in both tokens or only one token
• sqrt_min_price: square root of min price for pools
• sqrt_max_price: square root of max price for pools

Development

Dependencies

• anchor 0.31.0
• solana 2.1.0
• rust 1.85.0

Build

Program

anchor build

CLI

cargo build -p cli

Test

pnpm install
pnpm test

Deployments

• Mainnet-beta: cpamdpZCGKUy5JxQXB4dcpGPiikHawvSWAd6mEn1sGG
• Devnet: cpamdpZCGKUy5JxQXB4dcpGPiikHawvSWAd6mEn1sGG

Faucets

https://faucet.raccoons.dev/