{"uid":"cap_ZbCOTKclXSw0l77JB8Dcj","slug":"aurenic-readability-metrics-api-b19b345d","name":"Aurenic Readability Metrics API","description":"Readability metrics: Flesch-Kincaid, word counts","url":"https://api.aurenic.org/readability/:b64?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"pathParams":{"type":"object","required":["b64"],"properties":{"b64":{"type":"string"}}},"queryParams":{"type":"object","properties":{}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","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":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_cFFK-c1ByWrBjVpfbg03h","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Computes readability metrics including Flesch-Kincaid score and word counts for a given text","exampleAgentPrompt":"Can you check the readability of this article draft and give me the Flesch-Kincaid score and word count? Here's the text: 'The mitochondria is the powerhouse of the cell. Scientists have studied its role in cellular respiration for decades, finding that it converts glucose into ATP through a complex biochemical process.'","exampleUseCases":[{"title":"Blog post readability check","prompt":"I just finished writing this blog post — can you run a readability check on it and tell me the Flesch-Kincaid score and word count so I know if it's appropriate for a general audience? Here's the text: 'Starting a garden can seem overwhelming, but with the right tools and a bit of patience, anyone can grow their own vegetables at home.'"},{"title":"Academic paper complexity assessment","prompt":"Can you analyze this paragraph from my research paper and tell me how readable it is using the Flesch-Kincaid metric? I want to know if it's too complex for undergraduates: 'Epistemological frameworks posit that knowledge acquisition necessitates a dialectical interplay between empirical observation and theoretical abstraction, mediated by cognitive schemata.'"},{"title":"Marketing copy grade level check","prompt":"Before I send this product description to our team, can you score its readability with Flesch-Kincaid and give me the word count? The text is: 'Our revolutionary new blender combines cutting-edge motor technology with intuitive design to deliver a seamless blending experience for health-conscious consumers.'"}],"resultDescription":"Returns Flesch-Kincaid readability score and word count metrics for the submitted text. The Flesch-Kincaid score indicates reading ease (higher = easier to read) and/or grade level, helping gauge audience suitability.","failureModes":["Invalid or malformed base64 encoding in the path parameter returns an error","Empty or whitespace-only text yields minimal or zero metrics","Extremely long texts may hit size limits","Non-text binary content encoded as base64 may produce nonsensical scores"],"whenToPreferThis":"Choose this endpoint when you need fast, lightweight readability scoring without sending large payloads in a request body — the base64 path encoding makes it easy to call via GET. Ideal for agents doing quick content quality checks at $0.001 per call with no authentication overhead beyond x402 micropayment.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T06:36:46.146Z","isFirstParty":false,"canonicalSlug":"aurenic-readability-metrics-api-b19b345d"}