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 |
|---|---|---|---|---|---|---|
| 46 | CClearBankBanks & Enterprises · Banks | Named in Circle's Arc testnet release; clearing bank exploring stablecoin settlement. | Integrates | Announced | 2026-09-02 | |
| 47 | Listed by Circle for Arc; edge infrastructure and gateways for Arc applications. | Serves | Announced | 2026-09-02 | ||
| 48 | Listed by Circle for Arc; exchange and custody support for USDC moving on the chain. | Integrates | Live on Arc | 2026-09-28 | ||
| 49 | Listed by Circle for Arc; Japanese exchange support for USDC on Arc. | Integrates | Live on Arc | 2026-09-28 | ||
| 50 | CCoins.PHBridges & Onramps · Fiat onramps | Named in Circle's Arc testnet release; Philippine onramp and remittance app for USDC. | Integrates | Live on Arc | 2026-09-28 | |
| 51 | Listed by Circle as a bank partner for Arc; German corporate payments use is not yet detailed. | Integrates | Live on Arc | 2026-09-28 | ||
| 52 | Listed by Circle for Arc; institutional custody and off-exchange settlement. | Serves | Live on Arc | 2026-09-28 | ||
| 53 | Listed by Circle for Arc; stablecoin business accounts and payouts for online companies. | Integrates | Live on Arc | 2026-09-28 | ||
| 54 | Listed by Circle for Arc; cross-border corporate payments settled in USDC. | Integrates | Live on Arc | 2026-09-28 | ||
| 55 | Listed by Circle for Arc; enterprise wallet and stablecoin infrastructure. | Serves | Live on Arc | 2026-09-28 | ||
| 56 | Listed by Circle for Arc; principal liquidity provision in stablecoin pairs. | Integrates | Live on Arc | 2026-09-28 | ||
| 57 | Listed by Circle for Arc; a stableswap AMM design suited to Arc's stablecoin pairs. | Deploys | Live on Arc | 2026-09-28 | ||
| 58 | Listed by Circle on the Arc ecosystem page as a bank partner; no integration detail published. | Integrates | Announced | 2026-09-02 | ||
| 59 | Listed by Circle for Arc; wallet-as-a-service key infrastructure for banks and fintechs. | Serves | Live on Arc | 2026-09-28 | ||
| 60 | Listed by Circle for Arc; tokenized US equities issued as dShares backed one for one. | Issues | Live on Arc | 2026-09-28 | ||
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.