Index onlineMerchant portal
Api Endpoint

Wallet Balance

Get ETH and USDC balance for a wallet address

Open interactive test console

Offering

Provider
base-facts.yankii.fr
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://base-facts.yankii.fr/v1/wallet
MIME type
Not provided
First seen
2026-10-16T01:50:32.458Z
Last seen
Tags
Base, Wallet, balance

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": "0x40661D56c2Bf416c5946A8b21098eaF8D33459A2"
  }
]

Observed health

Status
Healthy
Latest latency
1210 ms
Average latency
938 ms
HTTP status
200
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

{
  "additionalProperties": false,
  "properties": {
    "body": {
      "properties": {
        "address": {
          "description": "0x-prefixed address",
          "type": "string"
        }
      },
      "required": [
        "address"
      ],
      "type": "object"
    },
    "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": {
      "properties": {
        "blockNumber": {
          "type": "string"
        },
        "eth": {
          "properties": {
            "decimal": {
              "type": "string"
            },
            "wei": {
              "type": "string"
            }
          },
          "type": "object"
        },
        "isContract": {
          "type": "boolean"
        },
        "nonce": {
          "type": "integer"
        },
        "source": {
          "type": "string"
        },
        "usdc": {
          "properties": {
            "atomic": {
              "type": "string"
            },
            "decimal": {
              "type": "string"
            }
          },
          "type": "object"
        }
      },
      "type": "object"
    },
    "type": {
      "type": "string"
    }
  },
  "required": [
    "type"
  ],
  "type": "object"
}