Setting Pool and Fee Config for Memecoin Pool v2
Memecoin Pool v2 is a DAMM v2 Pool with a Fee Scheduler.
A pool initialized with the program endpoint InitializeCustomizablePool will be tagged as meme
A DAMM v2 Memecoin Pool has the Fee Scheduler feature enabled, while a DAMM v2 Volatile Pool does not.
Current Default Fee Schedule for Memecoin Pool v2
Fee Scheduler: For DAMM v2 Memecoin Pools, there is a fee scheduler where the % fee charged per swap changes over time, and ending at a % fee set by the pool creator. This fee schedule is configurable and can be linear or exponential, and can be changed based on market conditions.
Protocol Fee: Protocol Fee represents the amount of fees charged per swap that goes to the protocol or integrations that drive volume to the pool. Protocol Fee is a % of the total LP Fee collected.
Currently, the default Fee Schedule used for Memecoin Pool v2 on Meteora frontend is based on an exponential curve; 50% when pool trading starts, and dropping every second for 120 min, ending at 0.25%.
Just as an example, here's a look at the % fee at different time intervals:
50% - when pool trading starts
32.15% - 10 min after pool trading starts (10 min after 50% starts)
20.67% - 20 min after pool trading starts (10 min after 32.15% starts)
13.29% - 30 min after pool trading starts (10 min after 20.67% starts)
8.55% - 40 min after pool trading starts (10 min after 13.29% starts)
5.50% - 50 min after pool trading starts (10 min after 8.55% starts)
3.53% - 60 min after pool trading starts (10 min after 5.50% starts)
2.27% - 70 min after pool trading starts (10 min after 3.53% starts)
1.46% - 80 min after pool trading starts (10 min after 2.27% starts)
0.94% - 90 min after pool trading starts (10 min after 1.46% starts)
0.60% - 100 min after pool trading starts (10 min after 0.94% starts)
0.39% - 110 min after pool trading starts (10 min after 0.60% starts)
0.25% - 120 min after pool trading starts (10 min after 0.39% starts)
Notes on Fee Scheduler
By default, LP Fees drop over time per second. But partners using the pool creation setup script have the following options:
Time based: Fees change per second
Slot based: Fees change per slot (1 slot = 1 block = 0.4 secs)
Pool and Fee Config for Integrators
Each pool is a PDA of token mints + config. There are 2 types of config; public or private.
Public config
In a public config, anyone can use one of the public config keys to create a pool. Currently, we have 72 config keys created for devnet and mainnet. Integrators can consider using a public config if tokens cannot be bought (leaked) before the token launch time. But launchpads typically use a private config.
To fetch all the public config keys, visit https://github.com/MeteoraAg/cp-amm-sdk/blob/main/src/CpAmm.ts and call the following function.
Or you can use this json file:
Private config
In a private config, only a specified address (configured in the config key) can create a pool with that config. If you are a launchpad, this helps you prevent front-running of the token launch pool.
Integrators such as launchpads or other partners may need to use their own unique pool config key (with a custom fee schedule), if they want custom
pool_creator_authorityto prevent front-running of the token launch pool. New dedicated config keys can only be created by Meteora, so please reach out to the team if this is required.If you're an integrator that's keen to create your own unique custom pool config key with a custom fee schedule and
pool_fees, please reach out to the team.The
pool_creator_authoritydoesn't work with program address. It's not a program whitelist, it needs to be a PDA (program derived address) or normal account.
Notes on Public vs Private Config Key
For Public Config Key: Integrators cannot change the fee schedule for that particular public config key.
For Private Config Key: If Meteora has already created a private config key for an integrator, how does the integrator change the fee schedule after that? Integrators can reach out to Meteora to request to change their fee schedule; the Admin as the ability to change the fee schedule for the private config key.
This section is under construction. More details will be added soon.
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