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 |
|---|---|---|---|---|---|---|
| 76 |  FISPayments & Payouts · PSPs | Listed by Circle for Arc; core banking and payment processing exposure to USDC settlement. | Integrates | Announced | 2026-09-02 | |
| 77 | FFiservPayments & Payouts · PSPs | Named in Circle's Arc testnet release; core banking and merchant processing exposure. | Integrates | Announced | 2026-09-02 | |
| 78 | FFlezpayPayments & Payouts · Merchant acceptance | Retail POS/payments OS naming Circle as a backer; the smart-QR product it was granted for is unconfirmed. | Integrates | Announced | 2026-09-02 | |
| 79 |  FluidExchanges & Trading · DEXs | Listed by Circle for Arc; combined lending and DEX liquidity aimed at Arc. | Deploys | Live on Arc | 2026-09-28 | |
| 80 |  Forte AUDStablecoins & Tokenized Assets · Stablecoin issuers | Listed by Circle for Arc; the Australian dollar stablecoin AUDF for Arc. | Issues | Live on Arc | 2026-09-28 | |
| 81 |  Forte SecuritiesExchanges & Trading · Market makers | Listed by Circle for Arc; institutional trading services around stablecoin markets. | Integrates | Live on Arc | 2026-09-28 | |
| 82 |  Fun.xyzDeveloper Infrastructure · Account abstraction | Listed by Circle for Arc; conversion-focused rails for executing on-chain actions. | Serves | Live on Arc | 2026-09-28 | |
| 83 |  GalaxyExchanges & Trading · Market makersFounding validator | Founding validator and day-one liquidity partner named in Circle's Arc mainnet release. | Integrates | Live on Arc | 2026-09-28 | |
| 84 |  GetLiquidDeFi & Credit · Private credit | Listed by Circle for Arc; standardises private-credit deals for on-chain settlement. | Deploys | Announced | 2026-09-02 | |
| 85 | GGlobal PaymentsBanks & Enterprises · Founding validatorsFounding validator | Founding validator named in Circle's Arc mainnet release; merchant settlement not yet detailed. | Integrates | Announced | 2026-09-02 | |
| 86 |  Goldman SachsBanks & Enterprises · Banks | Listed by Circle on the Arc ecosystem page as a bank partner; no integration detail published. | Integrates | Announced | 2026-09-02 | |
| 87 | GGSRExchanges & Trading · Market makers | Named in Circle's Arc release; market making across Arc stablecoin pairs. | Integrates | Announced | 2026-09-02 | |
| 88 |  HashkeyExchanges & Trading · Exchanges | Listed by Circle for Arc; licensed exchange support in Bermuda and Hong Kong. | Integrates | Live on Arc | 2026-09-28 | |
| 89 |  Hecto FinancialPayments & Payouts · PSPs | Listed by Circle for Arc; Korean payment processing with USDC settlement. | Integrates | Live on Arc | 2026-09-28 | |
| 90 |  Hecto InnovationWallets & Custody · Embedded wallets | Listed by Circle for Arc; Korean wallet and platform services for USDC. | Serves | Announced | 2026-09-02 | |
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.
