Api Endpoint

api.x402node.dev

Estimate the price impact (slippage) of a swap of a given size by comparing Uniswap V3 quotes at minimal vs target size - tells trading agents how much a large order will move the price against them before they execute, on-chain data LLMs cannot compute. price impact, slippage estimate, swap slippage, large trade impact, market depth, liquidity check Accepts payment on Base or Solana — either network works.

Open interactive test console

Offering

Provider: api.x402node.dev
Method: GET
Offering type: Api Endpoint
Transport type: http
Category: General Utilities
Delivery: Not provided
Pricing model: Not provided
x402 version: 2

Endpoint context

URL: https://api.x402node.dev/defi/price-impact
MIME type: application/json
First seen: 2026-10-16T02:09:24.457Z
Last seen: 2026-11-02T10:23:27.575Z
Tags: None supplied

Website

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1: 0.01 USDC
Atomic price: 10000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Payment option 2: 0.01 USDC
Atomic price: 10000 · Network: solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · Asset: USDC · Scheme: exact

Raw x402 terms

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "10000",
    "payTo": "0x4466d4A84b7c49a6A094ec6eef4a0712D6dd125e"
  },
  {
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "amount": "10000",
    "payTo": "9urRvUx69HqAopg1JGV9P9wR7JdKoztzdkuNyJ8Eo1up"
  }
]

Observed health

Status: Healthy
Latest latency: 186 ms
Average latency: 576 ms
HTTP status: 402
Last checked: 2026-11-02T10:23:27.571Z
Reachability: 100% over 9 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string",
      "const": "http"
    },
    "method": {
      "type": "string",
      "enum": [
        "GET"
      ]
    },
    "queryParams": {
      "type": "object",
      "properties": {
        "tokenIn": {
          "type": "string",
          "description": "Input token (required)"
        },
        "tokenOut": {
          "type": "string",
          "description": "Output token (required)"
        },
        "amount": {
          "type": "string",
          "description": "Trade size in tokenIn units (default 1000)"
        },
        "chain": {
          "type": "string",
          "description": "base (default), ethereum, arbitrum, optimism, polygon"
        }
      },
      "required": [
        "tokenIn",
        "tokenOut"
      ]
    }
  },
  "required": [
    "type",
    "method"
  ],
  "additionalProperties": false
}

Output schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "type": "object",
  "properties": {
    "input": {
      "type": "object",
      "properties": {
        "type": {
          "type": "string",
          "const": "http"
        },
        "method": {
          "type": "string",
          "enum": [
            "GET"
          ]
        },
        "queryParams": {
          "type": "object",
          "properties": {
            "tokenIn": {
              "type": "string",
              "description": "Input token (required)"
            },
            "tokenOut": {
              "type": "string",
              "description": "Output token (required)"
            },
            "amount": {
              "type": "string",
              "description": "Trade size in tokenIn units (default 1000)"
            },
            "chain": {
              "type": "string",
              "description": "base (default), ethereum, arbitrum, optimism, polygon"
            }
          },
          "required": [
            "tokenIn",
            "tokenOut"
          ]
        }
      },
      "required": [
        "type",
        "method"
      ],
      "additionalProperties": false
    }
  },
  "required": [
    "input"
  ]
}