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 it is
Stable AMM is a specialized variant of the Raydium AMM designed for pairs with known, well-behaved price relationships — primarily stablecoin–stablecoin pairs (USDC-USDT, USDH-USDC) and collateralized-token pairs. Instead of a constant-product curve, it uses a lookup table of (x, y, price) tuples that the pool admin populates viaInitModelData and UpdateModelData instructions. Price discovery happens through interpolation within the table, producing lower slippage for small swaps while remaining composable with OpenBook.
Stable AMM shares the same pool/OpenBook architecture as AMM v4: same MonitorStep logic, same Fees structure, same fee model. The difference is purely the pricing curve: instead of x·y=k, you interpolate a pre-populated model.
Program ID: see reference/program-addresses.
Token-2022: not supported. Classic SPL tokens only.
Liquidity: thin. Most user-facing integrations reach Stable pools through the AMM Routing program for best-price routing across all Raydium AMMs. The SDK also supports Stable pools directly: pools surface as version: 5 (pooltype: "StablePool") on ApiV3PoolInfoStandardItem, and the standard LiquidityModule (addLiquidity / removeLiquidity / swap) auto-detects v5 and emits the right instructions — see Code demos.
Chapter contents
Overview
Why a separate program, the lookup-table model, comparison to AMM v4 and CPMM.
Accounts
AmmInfo, ModelDataInfo, DataElement fields, vault layout, fee structure.
Math
How interpolation produces prices, OpenBook integration, fee application identical to AMM v4.
Instructions
Initialize, InitModelData, UpdateModelData, Deposit, Withdraw, SwapBaseIn, SwapBaseOut, MonitorStep, and more.
Fees
Same 0.25% / 0.22% LP / 0.03% protocol split as AMM v4. No fund fee, no creator fee.
Code demos
Detect a Stable pool, swap / add / remove liquidity through the SDK’s
LiquidityModule (handles v5 natively), and use the off-chain stable-curve helpers.When to read this
- You are integrating a stablecoin or asset pair and find a Stable AMM pool with the best price.
- You are building a routing engine and need to support Stable pools as a liquidity source.
- You are maintaining liquidity in a Stable pool — learning the model-data update flow.
- You are curious how AMM pricing can be made programmable via a lookup table.
Key facts
| Aspect | Value |
|---|---|
| Mainnet program ID | 5quBtoiQqxF9Jv6KYKctB59NT3gtJD2Y65kdnB1Uev3h |
| Devnet program ID | DRayDdXc1NZQ9C3hRWmoSf8zK4iapgMnjdNZWrfwsP8m |
| Curve model | Interpolated lookup table (not x·y=k) |
| OpenBook dependency | Yes, same as AMM v4 |
| Trade fee | 0.25% (same as AMM v4) |
| LP share of fee | 0.22% |
| Protocol share of fee | 0.03% |
| Creator fee | None |
| Fund fee | None |