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Api Endpoint

x402 Spend Cap/Allowance Check

Check an agent wallet's x402 spend cap before it pays, via Liquid Logic X: send a wallet and optional endpoint URL, get allowed, reason, remainingUsdc, capUsdc, spentUsdc from the published policy. $0.001 USDC on Base.

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Offering

Provider
audit.liquidlogicx.com
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://audit.liquidlogicx.com/api/allowance
MIME type
application/json
First seen
2026-10-16T01:50:06.715Z
Last seen
Tags
allowance, spend-controls, agent-payments, X402, USDC

Website

Payment pricing

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

Payment option 1
0.001 USDC
Atomic price: 1000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "1000",
    "payTo": "0x147991A1c25e78f6D9225d2dBA61eD93A6158c7b"
  }
]

Observed health

Status
Healthy
Latest latency
94 ms
Average latency
203 ms
HTTP status
402
Last checked
Reachability
100% over 14 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": {
        "wallet": {
          "type": "string",
          "description": "Agent wallet address to check (0x + 40 hex), e.g. 0x1111111111111111111111111111111111111111"
        },
        "endpoint": {
          "type": "string",
          "description": "Optional x402 URL the wallet wants to pay. Omit to get remaining cap + allowlist summary."
        }
      },
      "required": [
        "wallet"
      ]
    }
  },
  "required": [
    "type",
    "method"
  ],
  "additionalProperties": false
}

Output schema

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