Name: price-impact
Price: 0.005 USDC
Availability: InStock

$ man price-impact

agentutility / edge-market / price-impact

PRICE / CALL

$0.005

USDC · base mainnet · scheme: exact

METHOD

POST

CLUSTER

edgemarket

CATEGORY

uncategorized

STATUS

● live

NAME

price-impact — estimates price impact and slippage for a dex swap before you submit it on-chain

SYNOPSIS

POST https://x402.agentutility.ai/price-impact
     Content-Type: application/json
     X-PAYMENT:    <signed-transferWithAuthorization>

     { ... }

↳ first call → 402 Payment Required. Sign USDCtransferWithAuthorization, retry with theX-PAYMENT header.

DESCRIPTION

Estimates price impact and slippage for a DEX swap before you submit it on-chain. For a (from_token, to_token, chain), pulls aggregator quotes (LlamaSwap meta-aggregator, free public) at multiple USD sizes and reports per-size effective price + slippage versus the smallest size. Use it as a slippage estimator, swap-size impact check, size-keyed quote, or depth simulation to size a fill.

INPUT — request schema

property	type	description	req?
from_token	string	0x-prefixed 20-byte ERC-20 input token.	required
to_token	string	0x-prefixed 20-byte ERC-20 output token.	required
chain	string	EVM chain. Default 'base'. enum: base · ethereum · polygon · arbitrum · optimism	optional
sizes_usd	array	USD sizes to quote at, sorted ascending. Up to 5. Default [100, 1000, 10000].	optional

OUTPUT — response shape

field	type	description
from_token	string	Source token address (or symbol) being sold in the simulated swap.
to_token	string	Destination token address (or symbol) being bought in the simulated swap.
chain	string	Chain the quote is sourced on (e.g. ethereum, base, arbitrum).
from_usd_price	string	Spot USD price of from_token used to convert requested USD sizes into token amounts.
from_decimals	string	ERC-20 decimals of from_token, used to scale amounts passed to the aggregator.
quotes	string	Array of per-size entries with USD size, effective price, and slippage versus the smallest probe size.
source	string	Aggregator that produced the quotes (LlamaSwap meta-aggregator across DEX routers).

EXAMPLES — two ways to call

EXAMPLE 1 · curl

curl -X POST https://x402.agentutility.ai/price-impact \
  -H 'Content-Type: application/json' \
  -d '{ }'

first response = 402 Payment Required with payment requirements; sign + retry with X-PAYMENT.

EXAMPLE 2 · mcp

# Install the MCP package for this endpoint's cluster
npx -y @agentutility/mcp-<cluster>

# Required: EVM private key with USDC on Base
export X402_PRIVATE_KEY=0x...

# Then call the price-impact tool from your MCP-aware agent.

MCP server handles payment automatically — your coding agent just calls the tool by name.

METADATA

tags: edge-marketdexslippageprice-impactswap-quotedepth-simulationaggregatortrade-sizing
methods: POST
cluster: edgemarket
price: $0.005 USDC per call

ADJACENT — other endpoints in edgemarket

endpoint	description	price
agent-card-resolve	Resolves an ERC-8004 agentId to its on-chain owner, agentURI, and agent card JSON.	$0.005
arbitrage-spread	Finds the cross-exchange arbitrage spread for any CoinGecko-listed coin.	$0.005
basename-resolve	Resolves Coinbase Basenames (.base.eth) to Ethereum addresses and back, reading the Base mainnet L2 Resolver on-chain (no gas, no wallet).	$0.005
cid-fetch	Fetches the content behind an IPFS CID and optional path through public gateways, returning text, JSON, or base64 with a 5 MB cap.	$0.005
current-balance	Reads a wallet's current ERC-20 token balance with a read-only balanceOf call on Base, Ethereum, Arbitrum, Optimism, Polygon, BSC, or Ava…	$0.005
defi-yield-pools	Filters and ranks thousands of DeFi yield-bearing pools by APY across every chain DeFiLlama tracks.	$0.005
erc20-balance	Reads an ERC-20 token balance on-chain across any supported EVM chain, including Base, Ethereum, Arbitrum, Optimism, and Polygon.	$0.005
erc20-metadata	Reads ERC-20 token metadata: name(), symbol(), decimals(), and totalSupply() in parallel via public RPC on Base, Ethereum, Arbitrum, Opti…	$0.005