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 |
|---|---|---|---|---|---|---|
| 01 | Day-one integration named by Circle; lending markets on Arc since mainnet launch. | Deploys | Live on Arc | 2026-09-28 | ||
| 02 | Listed by Circle as a bank partner for Arc; South African corporate use is not yet detailed. | Integrates | Live on Arc | 2026-09-28 | ||
| 03 | Listed by Circle for Arc; intent-based transfers moving USDC in and out of Arc. | Serves | Live on Arc | 2026-09-28 | ||
| 04 | AAerodromeExchanges & Trading · DEXs | Named in Circle's Arc release; ve(3,3) liquidity venue for Arc pairs. | Deploys | Live on Arc | 2026-09-19 | |
| 05 | Listed by Circle for Arc; RPC and data APIs for teams building Arc payment apps. | Serves | Live on Arc | 2026-09-28 | ||
| 06 | Listed by Circle for Arc; a regulated euro e-money issuer bringing EURAU to the chain. | Issues | Live on Arc | 2026-09-28 | ||
| 07 | AAnthropicDeveloper Infrastructure · AI agents & automation | Named in Circle's Arc testnet release; agent tooling used alongside stablecoin payments. | Serves | Announced | 2026-09-02 | |
| 08 | AApolloBanks & Enterprises · Asset managers | Named in Circle's Arc testnet release; private-market fund exposure explored on chain. | Integrates | Announced | 2026-09-02 | |
| 09 | AARCLaunchLaunchpads, NFT & Meme · Launchpads | A claimed Arc memecoin launchpad — marketing live, no product, team or contract yet observed. | Deploys | Announced | 2026-09-02 | |
| 10 | AArcPunksLaunchpads, NFT & Meme · NFT collections | A claimed 10,000-piece generative NFT collection announced for Arc's mainnet launch day; no mint observed. | Deploys | Announced | 2026-09-02 | |
| 11 | AArcSwapExchanges & Trading · DEXs | Formerly described as an Arc stablecoin yield terminal; its domain now redirects elsewhere. | Deploys | Inactive | 2026-09-02 | |
| 12 | AArcTreasuryStablecoins & Tokenized Assets · RWA platforms | Claims a T-bill-backed USDC/EURC yield vault on Arc; issuer, custodian and contract are unconfirmed. | Issues | Announced | 2026-09-02 | |
| 13 | AArcWorldLaunchpads, NFT & Meme · Games | One developer's suite of Arc-testnet apps — NFT mint, virtual card, land, games — not a directory. | Deploys | Testnet | 2026-09-02 | |
| 14 | AAstraPumpLaunchpads, NFT & Meme · Launchpads | A launchpad/DEX named in ecosystem roundups — no independent site or contract yet observed. | Deploys | Announced | 2026-09-02 | |
| 15 | Listed by Circle for Arc; algorithmic market making across stablecoin venues. | Integrates | 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.