Bug
The EVM paywall assumes all payment tokens use 6 decimal places (like USDC). Tokens with different precision render incorrect amounts.
Where:
typescript/packages/http/paywall/src/evm/index.ts line 37: parseFloat(requirement.amount) / 1000000 — hardcoded 10^6 divisortypescript/packages/http/paywall/src/evm/EvmPaywall.tsx line 78: formatUnits(balance, 6) — hardcoded 6 for balance displaytypescript/packages/http/paywall/src/evm/utils.ts: getUSDCBalance() uses hardcoded USDC addresses for 3 chains only
Impact: Any token with non-6 decimals displays incorrectly. For example, an 18-decimal token priced at 0.001 (raw: 10^15) shows as $1,000,000,000 in the paywall UI. This already affects MegaETH/MegaUSD (18 decimals, in DEFAULT_STABLECOINS since v2.7.0).
Who it affects: Any chain in DEFAULT_STABLECOINS with decimals != 6. Currently: MegaETH (eip155:4326, MegaUSD, 18 decimals). Any new chain adding a non-6-decimal default token.
Expected behavior: The paywall should use the correct decimal precision for the payment token rather than assuming 6. The server-side amount conversion can read decimals from the default asset registry (getDefaultAsset). The client-side balance display can query the standard ERC-20 decimals() function, which every compliant token implements.
Bug
The EVM paywall assumes all payment tokens use 6 decimal places (like USDC). Tokens with different precision render incorrect amounts.
Where:
typescript/packages/http/paywall/src/evm/index.tsline 37:parseFloat(requirement.amount) / 1000000— hardcoded 10^6 divisortypescript/packages/http/paywall/src/evm/EvmPaywall.tsxline 78:formatUnits(balance, 6)— hardcoded 6 for balance displaytypescript/packages/http/paywall/src/evm/utils.ts:getUSDCBalance()uses hardcoded USDC addresses for 3 chains onlyImpact: Any token with non-6 decimals displays incorrectly. For example, an 18-decimal token priced at 0.001 (raw: 10^15) shows as $1,000,000,000 in the paywall UI. This already affects MegaETH/MegaUSD (18 decimals, in DEFAULT_STABLECOINS since v2.7.0).
Who it affects: Any chain in DEFAULT_STABLECOINS with decimals != 6. Currently: MegaETH (eip155:4326, MegaUSD, 18 decimals). Any new chain adding a non-6-decimal default token.
Expected behavior: The paywall should use the correct decimal precision for the payment token rather than assuming 6. The server-side amount conversion can read decimals from the default asset registry (
getDefaultAsset). The client-side balance display can query the standard ERC-20decimals()function, which every compliant token implements.