{"uid":"cap_JUpkxfi4o2F9Z-P6HOGiY","slug":"one-engine-unicode-nfkc-normalization-5b2eb21c","name":"ONE Engine Unicode NFKC Normalization","description":"Low-cost pay-per-call utility APIs for autonomous agents using x402 on Base.","url":"https://one-search.one-engine.workers.dev/v3/text-normalize/unicode-nfkc/t4?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","required":["text"],"properties":{"text":{"type":"string","description":"Text up to 50000 characters"}}},"responseSchema":{"type":"object","additionalProperties":true},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.0015","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":"$0.0015/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0015","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0015","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_kqqoiic98qHawOh4uFA1v","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.0015","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Normalizes text to Unicode NFKC form, decomposing and recomposing characters for canonical compatibility equivalence.","exampleAgentPrompt":"Normalize this text to NFKC unicode form: 'find the ℌello Ｗorld café — it's on 5ᵗʰ Ave'. I need the canonical compatibility-equivalent version.","exampleUseCases":[{"title":"Normalizing user-submitted form input","prompt":"A user pasted some text into our form that contains fullwidth Japanese characters, ligatures, and superscripts — can you run NFKC normalization on it so we store a consistent canonical version in our database?"},{"title":"Preparing text for consistent string comparison","prompt":"Before I compare these two strings for equality, normalize both of them to NFKC unicode — they might look the same but have different underlying code points due to compatibility variants."},{"title":"Cleaning scraped web content","prompt":"I scraped this article and it's full of fancy unicode — fractions like ¼, ligatures like fi, and math symbols. Run NFKC normalization on it so the text is clean and consistent before I index it."}],"resultDescription":"Returns a JSON object containing the NFKC-normalized version of the submitted text, with all Unicode compatibility decompositions applied and characters recomposed to their canonical forms.","failureModes":["Text exceeds 50,000 character limit — request rejected","Malformed JSON body or missing required 'text' field — 400 error","Payment not included or insufficient — 402 Payment Required","Network or worker timeout for very large payloads near the character limit"],"whenToPreferThis":"Choose this endpoint when you need lightweight, pay-per-call Unicode NFKC normalization without spinning up a local NLP library or maintaining infrastructure. It is ideal for agents normalizing small-to-medium text blobs before comparison, indexing, or storage, especially in workflows where you only occasionally need normalization and want to avoid over-engineering. Prefer this over NFC or NFD endpoints specifically when you need compatibility decomposition (e.g. collapsing fullwidth, superscripts, ligatures, and fractions to their base equivalents).","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T12:43:55.596Z","isFirstParty":false,"canonicalSlug":"one-engine-unicode-nfkc-normalization-95201d29"}