Uniswap V3

Source kind: native (custom MCP) · Network: Ethereum Sepolia · KH routing: mutates only

Tools

Tool	Mutates?	Description
uniswap_get_quote	no	Quoter V2 quote for an exact-input swap. Returns expected output and the encoded path.
uniswap_approve_router	yes	Approve the SwapRouter02 contract to spend an ERC-20.
uniswap_swap_exact_in	yes	Execute an exact-input swap with slippage protection.

Example

You: swap 0.001 ETH for USDC on uniswap

↳ calling uniswap_get_quote { tokenIn: "ETH", tokenOut: "USDC", amountIn: "0.001" }
  ✓ ~2.59 USDC at 0.3% fee
↳ calling uniswap_swap_exact_in { ... slippage: 0.5% }
  ↳ keeperhub: workflow wf_8a3c... → tx 0x17643319... → confirmed

Done. Swapped 0.001 ETH for 2.59 USDC.

Slippage

uniswap_swap_exact_in defaults to slippageBps: 50 (0.5%). The agent can override per-call if the intent suggests urgency vs price sensitivity.

For ETH ↔ ERC-20 swaps, the action wraps automatically — supply tokenIn: "ETH" and the call internally wraps to WETH and unwraps the recipient if tokenOut === "ETH".

Where the code lives

src/tools/uniswap/ — same five-file layout as Aave. Pool fee defaults to 0.3% but can be overridden per call.