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Arc supports 22 fiat-backed stablecoins, plus tokenized funds such as BlackRock's BUIDL and Circle's USYC.
Stablecoins carry most of the value that moves onchain. Moving them has always cost a different asset. You hold 500 USDC on Ethereum, and you cannot send one cent of it. The transaction needs ETH, so your dollars sit still until you go and buy some. Arc ends that. USDC is the native gas token, so the dollars you hold pay for the dollars you move.
What is Circle's Arc blockchain?
Arc is a Layer 1 blockchain built by Circle, the issuer of USDC. Circle designed Arc for stablecoin payments and tokenized finance. The chain is EVM-compatible, so smart contracts and developer tools that work on Ethereum work on Arc.
Blocks come from a permissioned set of 11 institutions plus Circle. The list includes BlackRock, DTCC, Visa, Mastercard, and Standard Chartered.
Fact | Detail |
|---|---|
Mainnet live | 16 September 2026 |
Gas token | USDC |
Chain ID | 5042 |
Consensus | Proof of authority, 11 validators plus Circle |
Finality | Under one second, deterministic |
Stablecoins | 22, including EURC, JPYC, KRW1, TRYB |
Tokenized assets | BUIDL, USYC, JAAA, JTRSY |
Interoperability | CCTP and Circle Gateway, 20+ chains |
Tangem supports Arc
Send, receive, and swap stablecoins on Arc in your self-custodial wallet.
- Update the Tangem app to version. 6.3.1
- Scroll to the bottom of your token list and tap Add & Manage.
- Tap Add tokens and select the account.
- Search for the stablecoin, open its available networks, enable Arc, and tap Save.
- Confirm with your Tangem device if prompted.
Crypto asset services carry risk. The value of crypto assets can fall as well as rise, rewards are variable and never guaranteed, and third parties provide swap and earn services. Tangem supplies technology and gives no investment advice.
Arc blockchain FAQ
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A Layer 1 blockchain built by Circle, the issuer of USDC, designed for stablecoin payments and tokenized finance. It is EVM-compatible, so Ethereum smart contracts and tools work on it, and its blocks come from a permissioned set of 11 institutions plus Circle, including BlackRock, DTCC, Visa, Mastercard, and Standard Chartered.
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To fix a long-standing friction: normally you can't move USDC on a chain without holding a separate gas asset like ETH, so your dollars sit idle. On Arc, USDC is the native gas token, so the dollars you hold pay for the dollars you move.
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Mainnet went live on 16 September 2026 with chain ID 5042, proof-of-authority consensus across 11 validators plus Circle, deterministic finality under one second, support for 22 stablecoins including EURC and JPYC, tokenized assets like BUIDL, and interoperability across 20+ chains via CCTP and Circle Gateway.
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Update the app to version 6.3.1, scroll to the bottom of your token list and tap Add & Manage, then Add tokens and select the account, search for the stablecoin, open its available networks, enable Arc, and tap Save - confirming with your Tangem device if prompted.
