{"uid":"cap_tlQh7-dkSTFRHujBS-sOM","slug":"apexapi-grammar-checker-a634ef9e","name":"ApexAPI Grammar Checker","description":"Crypto, AI, Social Media, Finance, Weather, Tools & more. Pay per call in USDC on Base. No API keys.","url":"https://apex-api-gamma.vercel.app/api/ai/grammar","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"query":{"type":"string","description":"Search query or input parameter"}}},"responseSchema":{"type":"object","description":"API response data"},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.184005","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.184005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.184005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.184005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_YeIPcPfg9t_yDWQxS7beJ","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.184005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Checks and corrects grammar in a given text input, returning grammar errors and/or corrected text","exampleAgentPrompt":"Can you check the grammar of this sentence and fix any mistakes: 'She dont know nothing about the new policy that was being announced yesterday'?","exampleUseCases":[{"title":"Email draft cleanup before sending","prompt":"Before I send this email to my manager, can you check the grammar and fix any errors? Here's what I wrote: 'We has completed the project ahead of schedule and the team are ready for the next phase of work.'"},{"title":"Social media caption quality check","prompt":"I want to post this on LinkedIn but want to make sure it sounds professional. Can you proofread this for grammar mistakes: 'Our company have been leading innovations in the space, and we're excited to share our findings with everyone.'"},{"title":"Customer message content validation","prompt":"I'm sending this message to a client and I want to be grammatically correct. Can you check this and fix it: 'The documents you requested is attached, please review them and let me know if you need any clarifications.'"}],"resultDescription":"Returns a response object containing grammar analysis of the input text, likely including corrected text, identified grammatical errors, and/or improvement suggestions.","failureModes":["Empty or missing query string returns an error","Very long text may exceed input limits","Payment failure (402) if USDC balance is insufficient","Non-English text may produce inaccurate results","Ambiguous text may not yield clear corrections"],"whenToPreferThis":"Use this endpoint when you need a quick, pay-per-call grammar check without setting up API keys or subscriptions. Ideal for agents that occasionally need to proofread user-generated content, drafts, or messages and want to pay only for what they use via USDC on Base.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T00:34:18.179Z","isFirstParty":false}