Grammar, spelling and style check with LanguageTool: each issue with its message, the offending text, its position, up to five suggestions, the rule id and category, plus the corrected text with the first suggestion of each issue applied. Body { text, language }: up to 20 KB, language auto by default. Text is sent only to LanguageTool's public API. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.