Index onlineMerchant portal
Api Endpoint

HALOWERK x402werk

Reads the receipt of a transaction on Ethereum, Base, Base Sepolia, OP Mainnet, Arbitrum One, Polygon PoS or Avalanche C-Chain and compares it with what you expected to be paid. The comparison runs against the ERC-20 transfer events in the receipt, not against the transaction recipient, because in a token payment the transaction recipient is the token contract and never the seller. Returns every transfer event with sender, recipient, token, raw amount and human amount computed with that token de

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Offering

Provider
x402.halowerk.com
Method
POST
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://x402.halowerk.com/settlement/verify
MIME type
application/json
First seen
2026-10-16T01:54:06.400Z
Last seen
Tags
None supplied

Website

Payment pricing

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

Payment option 1
0.002 USDC
Atomic price: 2000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "2000",
    "payTo": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E"
  }
]

Observed health

Status
Healthy
Latest latency
1188 ms
Average latency
638 ms
HTTP status
204
Last checked
Reachability
100% over 10 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": [
        "POST",
        "PUT",
        "PATCH"
      ]
    },
    "bodyType": {
      "type": "string",
      "enum": [
        "json",
        "form-data",
        "text"
      ]
    },
    "body": {
      "type": "object",
      "required": [
        "chain",
        "tx_hash",
        "expected"
      ],
      "additionalProperties": false,
      "properties": {
        "chain": {
          "type": "string",
          "enum": [
            "arb",
            "arbitrum",
            "arbitrum-one",
            "avalanche",
            "avax",
            "base",
            "base-mainnet",
            "base-sepolia",
            "basesepolia",
            "eip155:1",
            "eip155:10",
            "eip155:137",
            "eip155:42161",
            "eip155:43114",
            "eip155:8453",
            "eip155:84532",
            "eth",
            "ethereum",
            "ethereum-mainnet",
            "mainnet",
            "matic",
            "op",
            "op-mainnet",
            "optimism",
            "polygon"
          ],
          "description": "Chain of the transaction, as CAIP-2 (\"eip155:8453\"), as a short name (\"base\") or as the chain id (\"8453\")."
        },
        "tx_hash": {
          "type": "string",
          "pattern": "^0x[0-9a-fA-F]{64}$",
          "description": "Hash of the settlement transaction."
        },
        "expected": {
          "type": "object",
          "required": [
            "pay_to"
          ],
          "additionalProperties": false,
          "properties": {
            "pay_to": {
              "type": "string",
              "pattern": "^0x[0-9a-fA-F]{40}$",
              "description": "Address that was supposed to receive the payment — the seller, not the token contract."
            },
            "amount_units": {
              "type": "string",
              "pattern": "^[0-9]{1,78}$",
              "description": "Expected amount as an integer in the smallest unit of the token. Omit to skip the amount comparison; amount_matches is then null."
            },
            "asset": {
              "type": "string",
              "description": "Expected token contract address, or \"native\" for the chain coin. Omit to accept any token; asset_matches is then null."
            }
          }
        }
      }
    }
  },
  "required": [
    "type",
    "method",
    "bodyType",
    "body"
  ],
  "additionalProperties": false
}

Output schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "type": "object",
  "properties": {
    "input": {
      "type": "object",
      "properties": {
        "type": {
          "type": "string",
          "const": "http"
        },
        "method": {
          "type": "string",
          "enum": [
            "POST",
            "PUT",
            "PATCH"
          ]
        },
        "bodyType": {
          "type": "string",
          "enum": [
            "json",
            "form-data",
            "text"
          ]
        },
        "body": {
          "type": "object",
          "required": [
            "chain",
            "tx_hash",
            "expected"
          ],
          "additionalProperties": false,
          "properties": {
            "chain": {
              "type": "string",
              "enum": [
                "arb",
                "arbitrum",
                "arbitrum-one",
                "avalanche",
                "avax",
                "base",
                "base-mainnet",
                "base-sepolia",
                "basesepolia",
                "eip155:1",
                "eip155:10",
                "eip155:137",
                "eip155:42161",
                "eip155:43114",
                "eip155:8453",
                "eip155:84532",
                "eth",
                "ethereum",
                "ethereum-mainnet",
                "mainnet",
                "matic",
                "op",
                "op-mainnet",
                "optimism",
                "polygon"
              ],
              "description": "Chain of the transaction, as CAIP-2 (\"eip155:8453\"), as a short name (\"base\") or as the chain id (\"8453\")."
            },
            "tx_hash": {
              "type": "string",
              "pattern": "^0x[0-9a-fA-F]{64}$",
              "description": "Hash of the settlement transaction."
            },
            "expected": {
              "type": "object",
              "required": [
                "pay_to"
              ],
              "additionalProperties": false,
              "properties": {
                "pay_to": {
                  "type": "string",
                  "pattern": "^0x[0-9a-fA-F]{40}$",
                  "description": "Address that was supposed to receive the payment — the seller, not the token contract."
                },
                "amount_units": {
                  "type": "string",
                  "pattern": "^[0-9]{1,78}$",
                  "description": "Expected amount as an integer in the smallest unit of the token. Omit to skip the amount comparison; amount_matches is then null."
                },
                "asset": {
                  "type": "string",
                  "description": "Expected token contract address, or \"native\" for the chain coin. Omit to accept any token; asset_matches is then null."
                }
              }
            }
          }
        }
      },
      "required": [
        "type",
        "method",
        "bodyType",
        "body"
      ],
      "additionalProperties": false
    }
  },
  "required": [
    "input"
  ]
}