Your Ethereum and Solana wallets, on one screen, converted to JPY
Just register addresses to check the balances, transfers in and out, and totals of payments received for multiple wallets, with current JPY / USDC values. It is a viewing tool for people who hold and manage a sizable amount of crypto assets in several wallets outside exchanges and want an accurate picture of their balances and transfers.
You can sign up with an email address and a password. There is no monthly fee and no automatic renewal. For the sign-up steps and how to read the screens, see User guide (blog, in Japanese) ↗
The "Install web app" button may not appear in this browser. In that case, you can use the service in this browser without installing.
Installed. You can open it from the icon on your home screen or in your list of apps. If the icon is not on your home screen, look in your list of apps.
This uses a feature of your browser to install this web app. The icon appears on your home screen or in your list of apps (which one depends on the device and browser). What is installed is a web app, not an app file (APK). To use it, you need to sign up for an account and log in. Use is paid (1 hour of usage time is added free when you sign up). We have not yet checked this on an actual device.
- No private key or seed phrase neededYou only register public addresses. We never ask you to enter a private key or seed phrase.
- No signature needed to viewIt is a view-only tool, so it has no permission to move assets.
- Supports Ethereum / SolanaETH and ERC-20, SOL and SPL tokens. You can register up to 20 wallets per account.
Screen sample
After you register wallet addresses, your holdings are shown like this.
* This is a sample image. All figures shown are samples, not data from a real wallet.
How it works
- 1Sign upSign up with an email address and a password, then open the link in the confirmation email (1 hour of usage time is added free).
- 2Register addressPaste the public address of the wallet you want to view. The chain is detected automatically from the address format.
- 3See it instantlyBalances, transfers and totals of payments received are shown converted to JPY. Switch between wallets at the top.
Pricing
There is no monthly plan. You buy "usage time" for the period you need, and the remaining time decreases with the time elapsed from the moment of purchase.New sign-ups get 1 hour free.
⚠️ Prices may change without notice. Please check the current prices in this section and on the payment page.
The longer the period, the lower the price per hour (from 2 USDC for 1 hour).
| Period to purchase | USDC |
|---|---|
| 1 hour | 2 USDC |
| 1 day | 10 USDC |
| 1 week | 28 USDC |
| 1 month | 70 USDC |
* USDC is pegged to the US dollar, so the amount in yen varies with the exchange rate.
Usage time starts running from the moment of purchase and keeps running while you are not logged in. There is no monthly fee and no automatic renewal. Legal notice (Specified Commercial Transactions Act)
FAQ
Do I need to enter my wallet's private key or seed phrase?
No. You only register public addresses. This service never asks you to enter a private key or seed phrase.
Can I view addresses that are not mine?
The service shows public information on the blockchain, so it does not verify ownership (by signature). You can also register addresses such as a business partner's receiving address.
Which chains and tokens are supported?
Ethereum (ETH and ERC-20) and Solana (SOL and SPL tokens). Tokens whose price cannot be obtained are not included in the value and are listed together at the end.
Does usage time decrease while I am logged out?
Yes, it does. Usage time starts running from the moment of purchase, and once the time you bought has passed (the expiry time is reached), you can no longer use the service. There is no monthly fee or automatic renewal.
How do I pay?
By sending USDC (on Ethereum or Solana). Connect a wallet and buy from the payment page; once receipt is confirmed, the time is added to your usage time. A receipt (PDF) can also be issued.The steps, fees, and what happens if you make a mistake are summarized in How to pay with USDC.
Looking for something to use before signing up? Crypto Rate Viewer offers JPY–crypto conversion and historical charts in JPY. No sign-up or login needed — just start using it.
📢 News
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Prices revised (1 month: 70 USDC)
Prices are now 70 USDC for 1 month, 28 USDC for 1 week, 10 USDC for 1 day, and 2 USDC for 1 hour. Usage time you have already bought can be used as is. The way time is used up, by the time elapsed from the moment of purchase, has not changed.
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Prices lowered substantially; longer periods now cost less per hour
Prices became 10 USDC for 1 month, 4 USDC for 1 week, 1.5 USDC for 1 day, and 0.3 USDC for 1 hour (previously 0.8 USDC for 1 hour). The way time is used up, by the time elapsed from the moment of purchase, is unchanged. Prices may change without notice.
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The three sites uniswap / jupiter / trustwallet were merged into wallet.microfund.co.jp
uniswap.microfund.co.jp (Ethereum), jupiter.microfund.co.jp (Solana) and trustwallet.microfund.co.jp (payment history) have been unified into this site. Your login details and registered wallets can be used as they are. URLs of the old sites with ?address= also open on this site as they are. Please update your bookmarks.