# Coincheck

Announced · [Exchanges](https://builder.registrai.cc/ecosystem/exchanges/) · Last reviewed 2026-10-20

Japanese crypto exchange for buying and selling cryptocurrency. Named as a centralized exchange engaging with Arc in Circle's 2025-10-28 public testnet announcement.

[Website](https://www.coincheck.com/en/) · [X @coincheckjp](https://x.com/coincheckjp)

## Status

- First announced 2025-10-28

Evidence: [Circle Arc public testnet announcement](https://www.arc.io/pressroom/circle-launches-arc-public-testnet) · [Coincheck on Arc ecosystem directory](https://www.arc.io/ecosystem/coincheck)

## Sources

1. [Circle Arc public testnet announcement (2025-10-28)](https://www.arc.io/pressroom/circle-launches-arc-public-testnet) (2026-10-20)
2. [Coincheck on Arc ecosystem directory](https://www.arc.io/ecosystem/coincheck) (2026-10-20)
3. [Coincheck website](https://www.coincheck.com/en/) (2026-10-20)

[Suggest a correction](https://builder.registrai.cc/ecosystem/coincheck/correct/) · [How we publish](https://builder.registrai.cc/how-we-publish/) · [Arc ecosystem](https://builder.registrai.cc/ecosystem/)

Source: https://builder.registrai.cc/ecosystem/coincheck/ · Registrai, builder.registrai.cc, CC BY 4.0