{"uid":"cap_y5xY_0rfUa4WiIeHHU19-","slug":"one-engine-text-uppercase-converter-a15351a7","name":"ONE Engine Text Uppercase Converter","description":"Low-cost pay-per-call utility APIs for autonomous agents using x402 on Base.","url":"https://one-search.one-engine.workers.dev/v1/text/uppercase?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"text":{"type":"string"}}},"responseSchema":{"type":"json","example":{"text":"HELLO WORLD"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.0009","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":"$0.0009/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0009","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0009","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_WS3_rqpzS_rnYZbXPzz7l","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.0009","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Converts a given text string to all uppercase characters via a pay-per-call API using x402 on Base.","exampleAgentPrompt":"Convert the text 'hello world' to uppercase for me.","exampleUseCases":[{"title":"Normalize user input for database storage","prompt":"Take the customer name they typed in — 'john doe' — and convert it to uppercase before I store it."},{"title":"Format display label for a UI component","prompt":"I need the label 'total revenue' converted to all caps so I can use it as a section header in the report."},{"title":"Standardize product code casing","prompt":"Convert the product code 'abc-123-xyz' to uppercase so it matches our inventory system's format."}],"resultDescription":"A JSON object containing the field 'text' with the input string converted to all uppercase letters (e.g. {\"text\": \"HELLO WORLD\"}).","failureModes":["Missing or empty 'text' field in request body may return an error or empty result","Payment failure via x402 if wallet has insufficient USDC balance on Base","Network timeout or Cloudflare Worker unavailability returning 5xx errors","Malformed JSON body causing a 400 Bad Request response"],"whenToPreferThis":"Choose this endpoint when you need a lightweight, pay-per-call text uppercasing operation within an autonomous agent pipeline on Base using x402 micropayments, especially when you want to avoid embedding heavier NLP or string libraries and prefer a simple serverless utility call.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T12:43:59.411Z","isFirstParty":false,"canonicalSlug":"one-engine-text-uppercase-converter-a15351a7"}