Beauty & Personal Care · x402 · early usage

API request: /api/v1/developer/wallet/balances/history

by agents.allium.so · discovered, not yet claimed by its owner · updated 2026-10-12

30d calls4

30d payers3

MethodPOST

Outputjson

Mirrored from Coinbase's public x402 Bazaar. The description is the provider's own text and has not been reviewed here; the payment requirements are copied as published.

What it does

API request: /api/v1/developer/wallet/balances/history

Tags: blockchain · data · analytics · sql · bazaar

Call contract

Method: POST
Input: json
Output: json
Last paid call: 2026-10-12

Input example from Bazaar metadata

{
  "addresses": [
    {
      "address": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
      "chain": "ethereum"
    }
  ],
  "end_timestamp": "2025-06-17T00:00:00Z",
  "start_timestamp": "2025-06-01T00:00:00Z"
}

Output example

{
  "items": [
    {
      "address": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
      "block_number": 20000000,
      "block_timestamp": "2025-06-17T00:00:00Z",
      "chain": "ethereum",
      "raw_balance": 1500000000000000000,
      "raw_balance_str": "1500000000000000000",
      "token": {
        "address": "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2",
        "chain": "ethereum",
        "decimals": 18,
        "info": {
          "name": "Wrapped Ether",
          "symbol": "WETH"
        },
        "object": "token",
        "type": "evm_erc20"
      }
    }
  ]
}

Use with an agent

Discover. Agents find this listing with GET https://bazaar.saylorinnovations.com/discovery/search?query=…, the MCP tool search_resources, or /discovery/resources.
Inspect. Fetch /resources/28339.json for the price and payment options.
Pay. Call GET https://agents.allium.so/api/v1/developer/wallet/balances/history. The provider answers 402 with its payment requirements. An x402 client signs one of the options below and retries with PAYMENT-SIGNATURE.
Execute. The provider returns 200 with the data. Agent Bazaar is not in the request path and never sees your payment.

For humans

You don't need an account or an API key; you need a wallet holding a small amount of USDC on Base, Solana, eip155:196, Polygon, and an x402-capable client (see the examples below). Call the endpoint unpaid first to see exactly what it asks for.

Pricing & payment

Price: $0.01 / request
Protocol: x402 v2
Auth: No account or API key. Pay per request.
Networks: Base, Solana, eip155:196, Polygon
Demand: 4 calls · 3 unique payers in 30d (public x402 Bazaar data)

x402 payment requirements

Scheme	Network	Asset	Amount	Pay to	Timeout
exact	Base eip155:8453	USDC	$0.01	0x1f36221d7a4da35c0593d6bd40e442a9e415a400	1791787671s
exact	Solana solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp	USDC	$0.01	8DAPstrKNZeMysQEn7xmKk8b43ASmQYgq4mWx6VNENiH	1791787671s
exact	eip155:196 eip155:196	0x74b7f16337b8972027f6196a17a631ac6de26d22	10000	0x61Fdbe66c1AEaF491b8e121C83070aa750DDCada	1791787671s
exact	Polygon eip155:137	USDC	$0.01	0xF5B59aA4D23621B382Ac56465e2a78432CE768CA	1791787671s

accepts[] (raw JSON)

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0x1f36221d7a4da35c0593d6bd40e442a9e415a400",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "10000",
    "amountUsd": 0.01,
    "maxTimeoutSeconds": 1791787671
  },
  {
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "payTo": "8DAPstrKNZeMysQEn7xmKk8b43ASmQYgq4mWx6VNENiH",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "amount": "10000",
    "amountUsd": 0.01,
    "maxTimeoutSeconds": 1791787671
  },
  {
    "scheme": "exact",
    "network": "eip155:196",
    "payTo": "0x61Fdbe66c1AEaF491b8e121C83070aa750DDCada",
    "asset": "0x74b7f16337b8972027f6196a17a631ac6de26d22",
    "amount": "10000",
    "maxTimeoutSeconds": 1791787671
  },
  {
    "scheme": "exact",
    "network": "eip155:137",
    "payTo": "0xF5B59aA4D23621B382Ac56465e2a78432CE768CA",
    "asset": "0x3c499c542cEF5E3811e1192ce70d8cc03d5c3359",
    "amount": "10000",
    "amountUsd": 0.01,
    "maxTimeoutSeconds": 1791787671
  }
]

Schemas

Output schema (JSON Schema)

{
  "properties": {
    "example": {
      "type": "object"
    },
    "type": {
      "type": "string"
    }
  },
  "type": "object"
}

Example shape — generated from the schema, not a captured live response

{
  "example": {},
  "type": "string"
}

Examples

curl

curl -X POST 'https://agents.allium.so/api/v1/developer/wallet/balances/history' -H 'Content-Type: application/json' --data '{"addresses":[{"address":"0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045","chain":"ethereum"}],"end_timestamp":"2025-06-17T00:00:00Z","start_timestamp":"2025-06-01T00:00:00Z"}'
# -> 402 Payment Required; read PAYMENT-REQUIRED
# retry the identical request with PAYMENT-SIGNATURE

JavaScript

const res = await fetch("https://agents.allium.so/api/v1/developer/wallet/balances/history", {
  "method": "POST",
  "headers": {
    "content-type": "application/json"
  },
  "body": "{\"addresses\":[{\"address\":\"0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045\",\"chain\":\"ethereum\"}],\"end_timestamp\":\"2025-06-17T00:00:00Z\",\"start_timestamp\":\"2025-06-01T00:00:00Z\"}"
});
if (res.status === 402) {
  const { accepts } = await res.json();
  // pay one of accepts[] via an x402 client, then retry with the payment header
}

Python

import httpx
import json
res = httpx.request("POST", "https://agents.allium.so/api/v1/developer/wallet/balances/history", json=json.loads("{\"addresses\":[{\"address\":\"0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045\",\"chain\":\"ethereum\"}],\"end_timestamp\":\"2025-06-17T00:00:00Z\",\"start_timestamp\":\"2025-06-01T00:00:00Z\"}"))
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header

Details

Provider: agents.allium.so
Endpoint: https://agents.allium.so/api/v1/developer/wallet/balances/history
Machine-readable: /resources/28339.json