What is actually being built on Arc
Arc mainnet has been live since 16 September 2026. Every project here is checked against a source and dated — so you can see what is running on mainnet, what is still on testnet, and what has only been announced.
Directory
How we rank| # | Project | What it builds on Arc | Role | Status | Links | Checked |
|---|---|---|---|---|---|---|
| 136 | Listed by Circle for Arc; African remittance and merchant services in USDC. | Integrates | Live on Arc | 2026-09-28 | ||
| 137 | Founding validator; the Tokyo financial group named by Circle as SBI Group in the Arc release. | Integrates | Live on Arc | 2026-09-28 | ||
| 138 | Listed by Circle for Arc; tokenized fund and security issuance for institutional managers. | Issues | Live on Arc | 2026-09-28 | ||
| 139 | Listed by Circle for Arc; wallet and transaction infrastructure for consumer apps. | Serves | Live on Arc | 2026-09-28 | ||
| 140 | SSFx Money (Sora Financial Technologies)Payments & Payouts · Remittance | Stablecoin remittances between Africa and Turkey; founders named directly in a Circle blog profile. | Integrates | Announced | 2026-09-02 | |
| 141 | Listed by Circle as a bank partner for Arc; no published integration detail yet. | Integrates | Live on Arc | 2026-09-28 | ||
| 142 | Listed by Circle for Arc; the Canadian dollar stablecoin issuer behind QCAD. | Issues | Live on Arc | 2026-09-28 | ||
| 143 | Founding validator; Circle lists it as an institutional integration still in development. | Integrates | Live on Arc | 2026-09-28 | ||
| 144 | Listed by Circle for Arc; native USDC transfers between Arc and other chains. | Serves | Live on Arc | 2026-09-28 | ||
| 145 | Listed by Circle as a bank partner for Arc; custody and servicing use is not yet detailed. | Integrates | Announced | 2026-09-02 | ||
| 146 | Founding validator; the trading house is named by Circle as a corporate participant on Arc. | Integrates | Live on Arc | 2026-09-28 | ||
| 147 | Listed by Circle for Arc; an LLM automation agent connecting business systems to payments. | Serves | Live on Arc | 2026-09-28 | ||
| 148 | Listed by Circle for Arc; routes stablecoin deposits into yield strategies. | Deploys | Live on Arc | 2026-09-28 | ||
| 149 | Listed by Circle for Arc; bank-grade custody and tokenisation infrastructure. | Serves | Live on Arc | 2026-09-28 | ||
| 150 | TTeam FinanceDeveloper Infrastructure · Token tooling | Liquidity locking and vesting service with Arc support. | Serves | Live on Arc | 2026-09-19 | |
Questions
Which Arc does this site cover?
Built on Arc covers Circle's Arc, the stablecoin-native Layer-1 blockchain (mainnet chain ID 5042; testnet 5042002) that launched mainnet on 16 September 2026. It does not cover the ARC token, Aave Arc (a 2022 permissioned lending pool), Arc Raiders, Azure Arc or the Arc web browser.
Is Arc mainnet live?
Yes. Circle's Arc mainnet launched on 16 September 2026 (chain ID 5042). Built on Arc tracks which projects are observed on mainnet, which are only on testnet, and which have only been announced.
How is a project's status on Arc decided?
Status reflects what we observed on the date shown, not what a project announced. Every entry carries a dated source you can open and check yourself.
Is Built on Arc affiliated with Circle?
No. Built on Arc is an independent directory of projects building on Circle's Arc blockchain, not affiliated with, endorsed by or sponsored by Circle Internet Group.