Wallet Token Balance History

Overview

Returns a paginated list of balance changes for a specified Solana wallet address and token. Each entry includes transaction details, pre- and post-balances, and timing information, giving a complete audit trail of portfolio changes. Use it for portfolio tracking and compliance monitoring.

Business Value

• Portfolio Tracking: Track detailed balance changes over time for comprehensive wallet monitoring and analysis
• Compliance Monitoring: Provide complete audit trail of all token balance changes with transaction-level detail
• Transaction Analysis: Analyze balance impact of each transaction with before/after balance states
• Historical Analysis: Access complete historical balance data for research and backtesting purposes
• Risk Management: Monitor wallet activity patterns and balance fluctuations for risk assessment

Endpoint Details

URL:

https://api.cambrian.org/solana/wallet-balance-history

Method: GET
Authentication: Required via X-API-Key header

Query Parameters

Response Field Descriptions

Examples

1. Retrieve wallet balance history for a token within a time range

This example retrieves balance change history for a specific wallet's holdings of a token (wrapped SOL) within a defined Unix time range, limited to 10 results.

curl -X GET "https://api.cambrian.org/solana/wallet-balance-history?wallet_address=DKxRinQQhKnZcfdaSnKov5v4ja95pEncjBYU8ajzVgsW&token_address=So11111111111111111111111111111111111111112&after_time=1735689600&before_time=1735776000&limit=10" \
  -H "X-API-Key: YOUR_API_KEY" \
  -H "Content-Type: application/json"

Response:

[
  {
    "columns": [],
    "data": [],
    "rows": 0
  }
]

Result collections are limited to 10 items. In this example, no balance change records matched the specified wallet, token, and time range, so columns and data come back empty and rows is 0.

x402 Payment Option

This endpoint supports pay-per-use access via the x402 payment protocol (v2): pay $0.05 USDC per request using blockchain micropayments. No API key required.

Quick Start (TypeScript)

npm install @x402/fetch @x402/evm viem

import { x402Client } from "@x402/core/client";
import { ExactEvmScheme } from "@x402/evm/exact/client";
import { wrapFetchWithPayment } from "@x402/fetch";
import { privateKeyToAccount } from "viem/accounts";

const signer = privateKeyToAccount(process.env.EVM_PRIVATE_KEY as `0x${string}`);
const client = new x402Client();
client.register("eip155:*", new ExactEvmScheme(signer));

const fetchWithPayment = wrapFetchWithPayment(fetch, client);
const response = await fetchWithPayment(
  "https://x402.cambrian.org/solana/wallet-balance-history"
);
const data = await response.json();

Quick Start (Python)

pip install "x402[httpx]"

import asyncio, os
from eth_account import Account
from x402 import x402Client
from x402.http.clients import x402HttpxClient
from x402.mechanisms.evm import EthAccountSigner
from x402.mechanisms.evm.exact.register import register_exact_evm_client

async def main():
    client = x402Client()
    account = Account.from_key(os.getenv("EVM_PRIVATE_KEY"))
    register_exact_evm_client(client, EthAccountSigner(account))

    async with x402HttpxClient(client) as http:
        response = await http.get("https://x402.cambrian.org/solana/wallet-balance-history")
        print(response.json())

asyncio.run(main())

Payment Flow

1. Send a normal request to the endpoint (no API key needed)
2. Server returns 402 Payment Required with payment details
3. The x402 SDK automatically signs a payment authorization with your wallet
4. The SDK resubmits the request with the signed payment
5. Server verifies payment and returns the API response

The x402 SDK handles steps 2 through 5 automatically.

Network: Base (chain ID 8453) | Currency: USDC | Price: $0.05 per request