docs(minipay+fee-abstraction): add USDT 6-decimal warning and USDT celocli transfer example#2196
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…locli transfer example - code-library.mdx: add a Warning that USDT/USDC use 6 decimals (not 18), annotate each mainnet token address with its decimal count, and correct the parseUnits comment to cover USDT. - using-fee-abstraction.mdx: add a runnable USDT celocli transfer:erc20 example using the USDT token and adapter addresses, and clarify --value is in 10^6 units. Recreates external contribution #2186 on an org branch. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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viral-sangani
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Jun 16, 2026
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Recreates #2186 (external fork contribution by @samuelchimmy) on an org-owned branch so it can be merged.
What changed
build-on-celo/build-on-minipay/code-library.mdx<Warning>callout before theRequest an ERC20 token transfersection stating that USDT and USDC use 6 decimals on Celo, not 18.requestTransferwith its decimal count (USDm: 18, USDC: 6, USDT: 6).parseUnitscomment (which previously omitted USDT) to "USDm uses 18 decimals; USDC and USDT use 6 decimals".build-on-celo/fee-abstraction/using-fee-abstraction.mdxcelocli transfer:erc20example using the USDT token address (0x48065fbbe25f71c9282ddf5e1cd6d6a887483d5e) and its fee adapter (0x0e2a3e05bc9a16f5292a6170456a710cb89c6f72) — both already present in the table above.--valuefor USDC/USDT is in units of10^6.Why
The
requestTransfersnippet listed USDT but gave no decimal count, while noting USDC (6). Following it for USDT could lead a developer to pass18, sending 1,000,000,000,000× the intended amount.Credit to @samuelchimmy for the original contribution in #2186.
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