{"uid":"cap_xHFLhRDHomxG6xd37o9OH","slug":"omniapi-grammar-checker-22adc991","name":"OmniAPI Grammar Checker","description":"444 endpoints across 9+ chains. Crypto, AI, Social, Finance, Weather, Tools. Pay per call in USDC via x402 with 4 facilitators: Dexter, Meridian, FluxA, GoPlausible.","url":"https://omni-api-cyan.vercel.app/api/ai/grammar","method":"POST","headers":{},"bodySchema":{"type":"object","required":["query"],"properties":{"input":{"type":"string","description":"Input data for the endpoint"},"query":{"type":"string","description":"Search query or input text"},"params":{"type":"object","description":"Additional parameters"}}},"responseSchema":{"type":"object","description":"API response data"},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.033122","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":"$0.033122/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.033122","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.033122","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_j6WgxSFcFaBCsymtF8REe","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.033122","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 grammatically improved or validated content","exampleAgentPrompt":"Can you check the grammar of this sentence and fix any errors: 'She don't know nothing about the meeting that was scheduled for yesterday'?","exampleUseCases":[{"title":"Email draft grammar review","prompt":"Please check the grammar of this email draft before I send it: 'Dear John, I wanted to letting you know that the report are ready for your review. Please let me know if you have any question.'"},{"title":"Student essay proofreading","prompt":"Can you find and fix all the grammar mistakes in this paragraph from my essay: 'The results of the study shows that students who reads more tends to perform better in they exams.'"},{"title":"Social media caption cleanup","prompt":"Fix the grammar in this Instagram caption I wrote: 'Had such a amazing time at the concert last night, me and my friends was dancing all night long!'"}],"resultDescription":"Returns a response containing the grammatically corrected or validated version of the input text, along with any grammar suggestions or improvements identified by the AI grammar engine","failureModes":["Missing required 'query' field returns a validation error","Extremely long text inputs may be truncated or rejected","Ambiguous or context-free fragments may produce inaccurate corrections","Non-English text may not be handled correctly if the model is English-only","Payment failure via x402 returns HTTP 402 before processing occurs"],"whenToPreferThis":"Choose this endpoint when you need a quick, pay-per-call grammar check without committing to a subscription-based writing tool. It is suitable for lightweight grammar validation tasks within an agentic workflow where text quality assurance is a step rather than the primary goal. Prefer this over dedicated writing platforms like Grammarly when cost-per-call economics matter and you are already using the OmniAPI ecosystem for other tasks.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T00:55:51.670Z","isFirstParty":false}