cryptox.jp

What It Is

CRYPTO X（クリプトエックス） is a cryptocurrency profit/loss calculation and tax filing support tool for users in Japan. It focuses on helping users calculate crypto-asset taxes “early, cheaply, and easily,” covering Bitcoin, Ethereum, as well as more niche tokens and chains. Its target users are investors who need to organize crypto-asset transaction records under Japan’s tax system.

Core Features and Integrations

Based on the information on the page, its core modules include automatic profit/loss calculation, portfolio viewing, unified management across multiple exchanges and wallets, API-based imports, real-time price data reflection, and report output referencing materials from Japan’s National Tax Agency. It emphasizes support for complex income sources such as trading, staking, and airdrops, and says it can handle CEXs, DEXs, overseas exchanges, and emerging chains. Listed exchanges include Coincheck, bitFlyer, GMO Coin, bitbank, Gate.io, Bybit, Binance, DMM Bitcoin, BITPOINT, MEXC, and others. It also mentions support for managing wallets such as MetaMask and chains such as Solana and Sui.

Pricing and Current Stage

The page states that pricing starts from “¥4,980 per year” and positions it as a low-cost option in the industry, but it does not disclose plan tiers, transaction limits, feature permissions, or payment methods. More importantly, it is clearly currently in Beta, with users only able to register for the Beta and wait for an email notification. As a result, its production stability, service SLA, and whether the current pricing will continue all remain to be seen.

Pros and Cons

Its strengths are its focused use case, especially for Japanese crypto investors who use overseas exchanges, DEXs, multiple wallets, and niche chains. API integrations and centralized management can reduce the cost of manual record-keeping. Users can also communicate with the developers via X or Discord, making it easier to request support for additional chains or tokens. The downsides are that security and compliance disclosures are limited, with only a mention that transaction data is securely stored. Enterprise-grade capabilities such as team collaboration, permission management, self-hosting, and open APIs are not described. Its Beta status also means users should carefully verify feature completeness and the reliability of tax filing results.

Who It’s For and Access from China

It is best suited to individual investors and high-frequency or multi-chain traders who need to file cryptocurrency tax returns in Japan. It is less suitable for teams that need China-specific tax treatment, corporate finance collaboration, or private deployment. The main text does not provide information about access from China, so its availability there is unknown. Since it is designed around filing materials for Japan’s National Tax Agency, Chinese users who only need asset tracking or general profit/loss statistics may want to compare it with tools such as Koinly, CoinTracking, Cryptact, Gtax, or on-chain portfolio dashboards.