{"uid":"cap_Ezkn8ETo53VoEL0LozX-j","slug":"whatchuneed-grammar-check-api-8fe18421","name":"whatchuneed Grammar Check API","description":"320+ pay-per-call API endpoints across accommodation, LLM, code execution, crypto, medical, finance, and more. One API, one payment. Powered by x402 protocol.","url":"https://whatchuneed.vercel.app/api/util/grammar","method":"POST","headers":{},"bodySchema":{"type":"object","required":["input"],"properties":{"input":{"type":"string","description":"Request input"}}},"responseSchema":{"type":"object","properties":{"result":{"type":"object","description":"Response data"},"status":{"type":"string"}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.03","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":"$0.03/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.03","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.03","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_6s5sRtPIYwtBug18tCOiu","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.03","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 string, returning corrected output","exampleAgentPrompt":"Can you check the grammar of this sentence and fix any errors: 'She go to the store yesterday and buyed some apples'?","exampleUseCases":[{"title":"Proofreading an email draft","prompt":"Before I send this email, can you fix the grammar? Here's the draft: 'Dear Sir, I writed to enquire about the position that you have advertised last week.'"},{"title":"Validating user-generated content","prompt":"Check the grammar of this user review before we publish it on our site: 'The product are very good and I enjoied using it alot.'"},{"title":"Correcting a social media caption","prompt":"Fix any grammar mistakes in this caption before I post it: 'Me and my friends goes to the beach every summer, its always a great time.'"}],"resultDescription":"Returns a result object containing the grammar-checked and corrected version of the input text, along with a status field indicating success or failure of the operation.","failureModes":["Empty or missing 'input' field returns a validation error","Extremely long text inputs may time out or return partial results","Non-English or mixed-language text may produce inaccurate corrections","Ambiguous sentences may be over-corrected or altered in unintended ways","Network or payment processing failure returns a 402 or 5xx error"],"whenToPreferThis":"Choose this endpoint when you need a pay-per-call, no-subscription grammar correction service accessible via a single unified API. Ideal for agents that only occasionally need grammar checking without committing to a dedicated NLP service. Best suited for short-to-medium text strings where quick, per-use billing via the x402 protocol is preferred over bulk or batch grammar checking platforms.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T18:57:18.355Z","isFirstParty":false}