Index onlineMerchant portal
Api Endpoint

MEV / Sandwich Guard

Agents are the easiest MEV prey: predictable, public-mempool, a measured ~$50M/quarter tax. A sandwich only pays when a trade moves the pool enough to front-run (size vs pool depth). This returns an exposure read (low/elevated/high) and a protected-execution plan: a tight min-out, private/off-mempool inclusion (a Cobalt validity tx via validity-build), and splitting a large order into unattackable chunks. Pass tokenOut + amountUsd. Not financial advice.

Open interactive test console

Offering

Provider
402.com.tr
Method
GET
Offering type
Api Endpoint
Transport type
http
Category
Blockchain And Crypto
Delivery
Not provided
Pricing model
Not provided
x402 version
2

Endpoint context

URL
https://402.com.tr/api/x402/mev-guard
MIME type
application/json
First seen
2026-10-16T01:50:45.949Z
Last seen
Tags
mev, sandwich, front-running, mev-protection, trade-safety, slippage, Onchain, EVM, wallet-intel, Security, Data, Base, X402

Website

Payment pricing

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

Payment option 1
0.04 USDC
Atomic price: 40000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "40000",
    "payTo": "0x973a31858f4d2125f48c880542da11a2796f12d6"
  }
]

Observed health

Status
Healthy
Latest latency
556 ms
Average latency
690 ms
HTTP status
402
Last checked
Reachability
100% over 12 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": {
        "tokenOut": {
          "type": "string",
          "description": "Token you want to buy"
        },
        "amountUsd": {
          "type": "string",
          "description": "Trade size in USD"
        }
      },
      "required": [
        "tokenOut"
      ]
    },
    "pathParams": {
      "type": "object"
    }
  },
  "required": [
    "type",
    "method"
  ],
  "additionalProperties": false
}

Output schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "input": {
      "additionalProperties": false,
      "properties": {
        "method": {
          "enum": [
            "GET"
          ],
          "type": "string"
        },
        "pathParams": {
          "type": "object"
        },
        "queryParams": {
          "properties": {
            "amountUsd": {
              "description": "Trade size in USD",
              "type": "string"
            },
            "tokenOut": {
              "description": "Token you want to buy",
              "type": "string"
            }
          },
          "required": [
            "tokenOut"
          ],
          "type": "object"
        },
        "type": {
          "const": "http",
          "type": "string"
        }
      },
      "required": [
        "type",
        "method"
      ],
      "type": "object"
    },
    "output": {
      "properties": {
        "example": {
          "type": "object"
        },
        "type": {
          "type": "string"
        }
      },
      "required": [
        "type"
      ],
      "type": "object"
    }
  },
  "required": [
    "input"
  ],
  "type": "object"
}