Index onlineMerchant portal
Api Endpoint

Limitguard

Preflight before an agent pays an x402 seller: screens the payTo wallet against the OFAC SDN address list, reads who registered the resource domain and when (RDAP), and screens that company against the OFAC, EU and UN lists. Compares the payTo with the wallet the seller publishes in its 402 and /.well-known/x402, and blocks a lookalike (address poisoning). Returns ok, caution or block with one reason per finding.

Open interactive test console

Offering

Provider
api.limitguard.ai
Method
POST
Offering type
Api Endpoint
Transport type
http
Category
Legal And Compliance
Delivery
Not provided
Pricing model
Not provided
x402 version
2

Endpoint context

URL
https://api.limitguard.ai/v1/seller/preflight
MIME type
application/json
First seen
2026-10-16T01:50:24.663Z
Last seen
Tags
KYB, sanctions, lead-verification, wallet-screening, compliance

Website

Payment pricing

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

Payment option 1
0.005 USDC
Atomic price: 5000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Payment option 2
0.005 USDC
Atomic price: 5000 · Network: solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · Asset: USDC · Scheme: exact
Payment option 3
0.005 USDC
Atomic price: 5000 · Network: eip155:8453 · Asset: USDC · Scheme: settled-transfer
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "5000",
    "payTo": "0x6454a645C92B8722EC9A07FCe12A582A877B8843"
  },
  {
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "amount": "5000",
    "payTo": "P9Mqh3W5sR5CqJAWYJFQePVaUs5GBfnonsaCdT7FbEQ"
  },
  {
    "scheme": "settled-transfer",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "5000",
    "payTo": "0x6454a645C92B8722EC9A07FCe12A582A877B8843"
  }
]

Observed health

Status
Unreachable
Latest latency
5183 ms
Average latency
1748 ms
HTTP status
Not provided
Last checked
Reachability
92.9% over 14 checks

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

Input schema

{
  "additionalProperties": false,
  "properties": {
    "body": {
      "properties": {
        "network": {
          "description": "CAIP-2 network of the quote (default eip155:8453); eip155:* or solana:*",
          "type": "string"
        },
        "pay_to": {
          "description": "The payTo wallet of the x402 quote you are about to pay",
          "type": "string"
        },
        "resource_url": {
          "description": "The https URL of the paid resource, on a public DNS name",
          "type": "string"
        }
      },
      "required": [
        "pay_to",
        "resource_url"
      ],
      "type": "object"
    },
    "bodyType": {
      "enum": [
        "json",
        "form-data",
        "text"
      ],
      "type": "string"
    },
    "headers": {
      "additionalProperties": {
        "type": "string"
      },
      "type": "object"
    },
    "method": {
      "enum": [
        "POST",
        "PUT",
        "PATCH"
      ],
      "type": "string"
    },
    "queryParams": {
      "type": "object"
    },
    "type": {
      "const": "http",
      "type": "string"
    }
  },
  "required": [
    "type",
    "method",
    "bodyType",
    "body"
  ],
  "type": "object"
}

Output schema

{
  "properties": {
    "example": {
      "type": "object"
    },
    "type": {
      "type": "string"
    }
  },
  "required": [
    "type"
  ],
  "type": "object"
}