# Mercoin

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

Japanese crypto-asset company in the Mercari group that runs the crypto trading service inside the Mercari app. Named in Circle's 2025-10-28 Arc testnet announcement among payment and fintech firms engaging with Arc.

[Website](https://about.mercoin.com/)

## Status

- First announced 2025-10-28

Evidence: [Circle: Arc public testnet announcement](https://www.arc.io/pressroom/circle-launches-arc-public-testnet)

## Sources

1. [Circle: Arc public testnet announcement](https://www.arc.io/pressroom/circle-launches-arc-public-testnet) (2026-10-20)
2. [Mercoin company site](https://about.mercoin.com/) (2026-10-20)

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

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