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Issue a fiat-backed stablecoin on Base with B20, Base’s native token standard. Minting, redemption, compliance controls, and reconciliation ship with the chain, so there’s no custom contract to build or audit, and it’s fully ERC-20 compatible.

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Demo

The demo uses a local browser-generated account to submit real transactions on Base Vibenet. If Vibenet or its B20 features are unavailable, it automatically switches to an illustrative offline version.

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Network Status

B20 shipped in the Beryl upgrade. The B20 Stablecoin and Asset variants are active on Base Mainnet. Before you deploy on any network, confirm the variant is active with isActivated on the Activation Registry. createB20 requires no role or allowlist. Any account can create a stablecoin once the variant is active, and the Factory keeps no access to the token after creation.

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Integrate Stablecoins From Other Issuers

Wallets, apps, and payment providers that hold or move stablecoins issued by others work with the same interface for every issuer:
  • One integration. Every B20 stablecoin exposes the same ERC-20 surface and IB20Stablecoin interface, so code written for one issuer’s token works for any other.
  • Per-token rules. Each token enforces its own issuer’s policies on the sender, receiver, and transfer executor. A transfer of one issuer’s token succeeds only if the accounts pass that token’s policies. Call isAuthorized on the Policy Registry to check an account before you send.
  • Shared compliance lists. Policies live in the Policy Registry, not on the token, so one policy can back many tokens. Issuers that agree on a list can attach the same policy ID.
  • Conversion and redemption. B20 has no protocol-level conversion between stablecoins from different issuers. Each token is a separate asset: convert through an onchain swap or a venue that supports both tokens. Fiat redemption happens offchain with each issuer, which then burns the redeemed supply.
KYC and sanctions screening happen offchain. An issuer or its compliance operator applies the result onchain by adding accounts to an allowlist or blocklist policy. See Restrict Who Can Hold It and Block an Account.

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Guides

Issue Your Stablecoin

Create a fiat-backed token in one call.

Mint Supply

Issue new tokens as reserves grow.

Burn Supply

Retire tokens on redemption.

Restrict Who Can Hold It

Limit transfers to approved accounts.

Block an Account

Stop one address on a compliance hold.

Recover Funds

Reclaim and reissue a blocked balance.

Pause Activity

Halt transfers, mints, or burns.

Reconcile with Memos

Match onchain activity to your books.