{"uid":"cap_aSpLoRh21mgEdZ73dTlvd","slug":"one-engine-text-lowercase-normalizer-4b5cad52","name":"ONE Engine Text Lowercase Normalizer","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/lowercase/t6?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":"0.004","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":"$0.004/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.004","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.004","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_m4RO7tj5Is6Hes4mC-lPK","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.004","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Converts any input text to lowercase using a pay-per-call API on Base via x402.","exampleAgentPrompt":"Can you lowercase all the text in this string for me: 'Hello World, This Is A Test Of MIXED Case Text!'","exampleUseCases":[{"title":"Normalize user input before lookup","prompt":"Take this user-submitted search query 'APPLE iPhone 15 PRO MAX' and convert it to all lowercase so I can do a case-insensitive database lookup."},{"title":"Standardize email address casing","prompt":"I need to lowercase this email address before storing it: 'John.DOE@Example.COM' — can you normalize it?"},{"title":"Preprocess text for NLP pipeline","prompt":"Before I run sentiment analysis, I need to lowercase this product review: 'This Laptop Is AMAZING but the Battery Life is TERRIBLE.' Can you convert it to lowercase?"}],"resultDescription":"Returns a JSON object containing the lowercased version of the submitted text, with all uppercase and mixed-case characters converted to their lowercase equivalents.","failureModes":["Text exceeds 50,000 character limit — request rejected","Payment not included or insufficient USDC — 402 Payment Required response","Malformed request body missing required 'text' field — 400 Bad Request","Network or Cloudflare Worker timeout — 5xx error"],"whenToPreferThis":"Choose this endpoint when you need a fast, cheap, stateless lowercase conversion for up to 50,000 characters and are already operating within an x402/Base payment infrastructure. It is ideal for autonomous agents that need deterministic text normalization without spinning up a local utility function.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T12:43:58.397Z","isFirstParty":false,"canonicalSlug":"one-engine-text-lowercase-normalizer-4b5cad52"}