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Ozmium Uniswap V3 LP Remove / Fee Collect
x402
Ozmium Uniswap V3 LP Remove / Fee Collect is a paid API for AI agents from ozmium.org, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).
Generates Uniswap V3 exit and fee-claim calldata (multicall of decreaseLiquidity, collect, unwrapWETH9, sweepToken) to remove liquidity or collect fees from a V3 position, unwrapping WETH to native ETH.
Price / call$0.01
Success—
StatusUnknown
How this service works
Uniswap V3 exit and fee-claim calldata: multicall([decreaseLiquidity?, collect, unwrapWETH9, sweepToken]). POST /v1/tx/lp/uni/remove { owner, tokenId, liquidity? }. liquidity 0 (or omitted) COLLECTS FEES ONLY - the claim path; any other value decreases first then collects. The WETH side is unwrapped back to native ETH rather than left as wrapped dust.
Output
Returns an array of transaction steps (to, data, value) forming a multicall that encodes decreaseLiquidity (if liquidity > 0), collect, unwrapWETH9, and sweepToken calls, along with the target network identifier. The agent submits these steps on-chain to withdraw liquidity and/or collect accrued fees, receiving native ETH instead of wrapped WETH.
Example use cases
Full exit from Uniswap V3 position
“I want to fully exit my Uniswap V3 LP position — token ID 99876, my wallet is 0xDe4...beef. Generate the calldata to pull all liquidity and unwrap any WETH back to ETH.”
Collect fees only without removing liquidity
“I just want to harvest the trading fees from my Uniswap V3 position token ID 54321 without actually removing any of my liquidity. My owner address is 0xFa9...321 — give me the calldata for a fees-only collect.”
Partial liquidity decrease on Uni V3
“Reduce my Uniswap V3 position token ID 77001 by exactly 5000000000000000 units of liquidity — owner is 0xB00...c0de — and give me the multicall transaction to do it with WETH unwrapped to native ETH.”
Technical details
Endpoint
POSThttps://ozmium.org/v1/tx/lp/uni/removeWhen to prefer
Use this endpoint when an agent needs to generate ready-to-submit Uniswap V3 remove-liquidity or fee-collection calldata without constructing the multicall manually. It is the right choice when the position uses WETH (ensuring automatic unwrap to native ETH) and when you need a single bundled multicall rather than separate contract calls. Prefer this over generic swap or transfer endpoints when the goal is LP position management specifically on Uniswap V3.
Side effects
- Invalid or non-existent tokenId returns an error or empty calldata
- Owner address does not match the NFT owner — transaction will revert on-chain
- Liquidity value exceeds position's available liquidity — on-chain revert
- Malformed owner address (not a valid EVM address) causes a 400-level error
- Zero liquidity with no accrued fees still generates a collect call but yields zero tokens
- Network mismatch between the position chain and expected network may produce invalid calldata
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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