Any wallet’s balance, at any block, on seven chains.

Three ways to get balances today

1. Build it yourself

   weeks, then edge cases

   Rebuilding balances from raw logs takes weeks, then breaks on rebasing tokens, fee-on-transfer tokens and Solana’s closed accounts.

   reconcile.logillustration

   $ reconcile --wallet 0x3c1e…a9f0 --token stETH --at 2026-06-30
     sum of transfers     1,204.551
     balanceOf() at block 1,212.906
   ✗ off by 8.355 rebasing token: the balance grew with no transfer

2. Call a wallet API

   a bill per call

   You get one wallet per call and a bill for each call. History for ten thousand wallets means ten thousand calls, for every date you ask about.

   requests.logillustration

   GET /v1/wallets/0x9f2c…11ab/balances?date=2026-06-30  200  1 call
   GET /v1/wallets/0x51d0…e7c2/balances?date=2026-06-30  200  1 call
   GET /v1/wallets/0xc07b…0e44/balances?date=2026-06-30  200  1 call
   calls 0   wallets answered 0   left 10,000 of 10,000

3. Buy from a warehouse vendor

   a contract first

   The tables exist, but they sit behind an annual contract and a sales call.

   inboxillustration

   from    sales@vendor.example
   subject Re: pricing for balance tables
   
   Thanks for reaching out! Pricing depends on your use case.
   Could we find 30 minutes next week? Our plans are annual.

noticeDune closed its Sim wallet API on 1 August 2026. If you’re choosing what replaces it, compare tables as well as endpoints.

Fifty wallets, every month end, one query

Change the token, the chains or the period. The query runs in your own BigQuery project, on your own bill.

1-- USDT, 50 wallets, each month end
2SELECT
3  chain,
4  day AS month_end,
5  address,
6  balance,
7  block_number
8FROM `asof-data.balances.daily`
9WHERE symbol = 'USDT'
10  AND chain IN ('tron', 'ethereum')
11  AND address IN UNNEST(@wallets)   -- your 50 addresses
12  AND day = LAST_DAY(day, MONTH)
13  AND day >= '2025-01-01'
14ORDER BY month_end DESC, balance DESC

Synthetic wallets and balances; block numbers are each chain’s last block of the day, to within a few blocks. The demo will run this query on real data.

Delivered where you already work

Who it’s for

SELECT chain, symbol, SUM(balance) AS held
FROM `asof-data.balances.daily`
WHERE address IN UNNEST(@fund_wallets)
  AND day = '2026-08-31'
GROUP BY chain, symbol
ORDER BY held DESC

How we check the numbers

Every day we sample balances from our tables and compare them with the chain. How we check depends on what each chain’s nodes can tell us. The log below runs the Ethereum check in your browser, against a public node, on each new block.

We’ll publish the daily match rate on this page once the checks have run for a month.

The method, by chain

Ethereum, Base, BNB Chain, Polygon, Arbitrum

We ask an archive node for the balance at the same block.

Solana

Nodes don’t serve past state, so we check against the balances each transaction records before and after it runs.

Tron

Nodes don’t serve past state either. We check today’s balance against a node, then sum the ledger back to each past date.

Known edge cases, and what we do about each

Chains and tables

Where each chain stands on launch day, 10 November 2026. After that, one chain goes live each week.

Solana comes first after launch. After that, sign-up votes set the order of BNB Chain, Arbitrum and Polygon. Vote for the chain you need; votes go with your sign-up.