Index onlineMerchant portal
Api Endpoint

MACH Base

Verify an onchain payment or investigate a failed Base transaction in one call with transaction, receipt, success status, confirmations, gas and fee context.

Open interactive test console

Offering

Provider
api.mach.gallery
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://api.mach.gallery/api/base/transaction-context
MIME type
Not provided
First seen
2026-10-16T01:50:32.458Z
Last seen
Tags
Base, Transaction, payment, confirmations, debugging

Website

Payment pricing

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

Payment option 1
0.008 USDC
Atomic price: 8000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "8000",
    "payTo": "0xB6313D094618b20dd29994Bec6697aE1e9F02DfE"
  }
]

Observed health

Status
Healthy
Latest latency
64 ms
Average latency
742 ms
HTTP status
402
Last checked
Reachability
100% over 15 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": {
      "additionalProperties": false,
      "properties": {
        "tx_hash": {
          "description": "32-byte Base transaction hash.",
          "pattern": "^0x[0-9a-fA-F]{64}$",
          "type": "string"
        }
      },
      "required": [
        "tx_hash"
      ]
    },
    "bodyType": {
      "enum": [
        "json",
        "form-data",
        "text"
      ],
      "type": "string"
    },
    "method": {
      "enum": [
        "POST"
      ],
      "type": "string"
    },
    "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"
}