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 — price-impact / slippage estimator / dex swap size impact / size-keyed quote / depth simulation

SYNOPSIS

POST https://x402.org/v1/price-impact
     Content-Type: application/json
     X-PAYMENT:    <signed-transferWithAuthorization>

     { ... }

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

DESCRIPTION

Price-impact / slippage estimator / DEX swap size impact / size-keyed quote / depth simulation. 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 to size a fill before submitting it on-chain.

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.org/v1/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 once
claude mcp add x402 --command "npx x402-deployer-mcp"

# then ask Claude Code:
# "use the price-impact tool to ..."

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	Agent card resolver / ERC-8004 Identity Registry lookup / Trustless Agents / agentId → owner + agentURI / A2A identity / agent.json fetch…	$0.005
arbitrage-spread	Cross-exchange arbitrage spread / max-min price / CEX price dispersion / spread % calculator.	$0.005
basename-resolve	Basename resolver / Coinbase Basenames / .base.eth lookup / Base name service / on-chain name resolution.	$0.005
defi-yield-pools	DeFi yield pools / APY aggregator / yield-farming opportunities / DeFiLlama yields / cross-protocol APY ranking / stablecoin yields / LP…	$0.005
ipfs-fetch	IPFS fetch / IPFS gateway / Web3 storage retrieval / NFT metadata fetcher / Filecoin gateway / decentralized content / pinned-content reader.	$0.005
safe-multisig-status	Safe multisig status / Gnosis Safe info / Safe owners / Safe threshold / Safe pending queue / DAO treasury wallet / Safe wallet lookup.	$0.005
stablecoin-monitor	Stablecoin monitor.	$0.005
stablecoin-peg	Stablecoin peg monitor / depeg detector.	$0.005

/price-impact(1)