{"uid":"cap_OYlGx-Mobsv2UqL-WKFNN","slug":"touchstone-readability-scorer-8e468e22","name":"Touchstone Readability Scorer","description":"Deterministic readability scores (Flesch, Flesch-Kincaid, Gunning Fog, SMOG, Coleman-Liau, ARI) over published formulas. For long text use POST. Signed.","url":"https://touchstone.locomot.io/readability","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","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","required":["text"],"properties":{"text":{"type":"string","description":"the text to score"}}}},"additionalProperties":false},"output":{"type":"object","properties":{"op":{"type":"string"},"counts":{"type":"object"},"method":{"type":"string"},"scores":{"type":"object"},"source":{"type":"string"},"reading_time_seconds":{"type":"number"}}}}},"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_2bnbuxRhYZKh-7nJXpV47","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 deterministic readability scores (Flesch, Flesch-Kincaid, Gunning Fog, SMOG, Coleman-Liau, ARI) for any input text using published formulas","exampleAgentPrompt":"What's the readability score of this paragraph? 'The mitochondrial DNA sequence exhibits polymorphic variation across heteroplasmic populations, necessitating longitudinal genomic surveillance.' I want Flesch, Flesch-Kincaid, Gunning Fog, SMOG, Coleman-Liau, and ARI.","exampleUseCases":[{"title":"Grade-level check for patient materials","prompt":"I just drafted this patient discharge summary and I need to make sure it's written at or below an 8th grade reading level before we send it out. Can you run all six readability scores on it — Flesch, Flesch-Kincaid, Gunning Fog, SMOG, Coleman-Liau, and ARI — so I know if it needs to be simplified?"},{"title":"Editorial review for news articles","prompt":"We have a house style rule that all our public-facing news articles should hit a Flesch Reading Ease of at least 60. Can you score this draft article across all the standard readability indexes so I can see where it lands and whether the editor needs to simplify the language?"},{"title":"Compliance check for legal disclosures","prompt":"Our legal team needs to verify that this terms-of-service document meets plain-language compliance requirements before it goes live. Can you calculate the full set of readability metrics — Flesch, Flesch-Kincaid, Gunning Fog, SMOG, Coleman-Liau, and ARI — and tell me what grade level it's effectively written at?"}],"resultDescription":"A JSON object containing multiple readability scores (Flesch reading ease, Flesch-Kincaid grade level, Gunning Fog, SMOG, Coleman-Liau, ARI), text counts (words, sentences, syllables), estimated reading time in seconds, and the scoring method used — all computed deterministically from published formulas.","failureModes":["Missing 'text' query parameter returns an error","Empty string input may produce undefined or zero scores","Extremely short text (1-2 words) may yield unreliable or extreme scores","Text with no sentence-ending punctuation may miscalculate sentence counts","Non-English text may produce inaccurate syllable counts and scores"],"whenToPreferThis":"Choose this endpoint when you need deterministic, reproducible readability scores based on established published formulas rather than AI-generated estimates. Ideal for content grading, editorial review pipelines, compliance checking, or any use case requiring auditable, formula-based results across all six major readability indexes simultaneously.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T06:39:21.535Z","isFirstParty":false}