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.
Payments & Payouts28 projects
Banks & Enterprises29 projects
Stablecoins & Tokenized Assets11 projects
Exchanges & Trading33 projects
DeFi & Credit6 projects
Wallets & Custody23 projects
Bridges & Onramps10 projects
Developer Infrastructure27 projects
Compliance & Analytics3 projects
Launchpads, NFT & Meme9 projectsDirectory
How we rank| # | Project | What it builds on Arc | Role | Status | Links | Checked |
|---|---|---|---|---|---|---|
| 106 | LLunexExchanges & Trading · DEXs | A StableSwap AMM for Arc stablecoin pairs; testnet TVL reported, not independently confirmed. | Deploys | Testnet | 2026-09-02 | |
| 107 |  Luno (ZARU)Stablecoins & Tokenized Assets · Stablecoin issuers | Listed by Circle for Arc; the rand-referenced ZARU stablecoin from Luno. | Issues | Live on Arc | 2026-09-28 | |
| 108 |  MapleDeFi & Credit · Private credit | Listed by Circle for Arc; institutional private-credit pools drawn and repaid in USDC. | Deploys | Live on Arc | 2026-09-28 | |
| 109 |  MastercardBanks & Enterprises · Card networksFounding validator | Founding validator; named by Circle in the Arc mainnet release as a card-network participant. | Integrates | Live on Arc | 2026-09-28 | |
| 110 |  MercoinPayments & Payouts · PSPs | Listed by Circle for Arc; consumer payment products in Japan built on USDC. | Integrates | Announced | 2026-09-02 | |
| 111 |  MetaMaskWallets & Custody · Consumer wallets | Day-one integration named by Circle; consumer wallet support for Arc from launch. | Serves | Live on Arc | 2026-09-28 | |
| 112 | MMintPlusDeveloper Infrastructure · Token tooling | Token creation and vesting tooling; Arc support stated, not yet observed. | Serves | Announced | 2026-09-02 | |
| 113 | MMoneyGramBanks & Enterprises · Founding validatorsFounding validator | Founding validator named in Circle's Arc mainnet release; cash-out corridors not yet detailed. | Integrates | Announced | 2026-09-02 | |
| 114 |  MorphoDeFi & Credit · Lending | Day-one integration named by Circle; lending markets on Arc since mainnet launch. | Deploys | Live on Arc | 2026-09-28 | |
| 115 | MMyazaPayments & Payouts · Remittance | Pan-African multi-currency payments wallet; reported Circle grant recipient, not confirmed by Circle directly. | Integrates | Announced | 2026-09-02 | |
| 116 |  NoahPayments & Payouts · PSPs | Listed by Circle for Arc; a single API for platforms embedding stablecoin payments. | Integrates | Live on Arc | 2026-09-28 | |
| 117 | NNoncoExchanges & Trading · Market makers | Named in Circle's Arc release; institutional trading and liquidity in stablecoin markets. | Integrates | Announced | 2026-09-02 | |
| 118 |  NuveiPayments & Payouts · PSPs | Listed by Circle for Arc; a global PSP that would settle merchant payouts in USDC. | Integrates | Announced | 2026-09-02 | |
| 119 | OOrixaLaunchpads, NFT & Meme · Launchpads | A curated NFT launchpad/marketplace for Arc, observed on testnet only. | Deploys | Testnet | 2026-09-02 | |
| 120 |  Ormi LabsDeveloper Infrastructure · Indexing & explorers | Listed by Circle for Arc; real-time and historical indexing for high-throughput apps. | Serves | Testnet | 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.
