{"uid":"cap_M-vfDPFcxzLz66hKxwArr","slug":"one-engine-text-includes-check-3162b18d","name":"ONE Engine Text Includes Check","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/includes?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"text":{"type":"string"},"search":{"type":"string"}}},"responseSchema":{"type":"json","example":{"matches":true}},"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_IUzEUNTLgPWYlD1CP7KwP","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":"Checks whether a given search string is contained within a provided text, returning a boolean match result.","exampleAgentPrompt":"Check if the text 'The quick brown fox jumps over the lazy dog' includes the word 'fox'.","exampleUseCases":[{"title":"Keyword presence in scraped content","prompt":"I just scraped a product page — can you check if the text includes the word 'discontinued' so I know whether to flag it?"},{"title":"Filter agent output for compliance terms","prompt":"Take this LLM-generated response and check if it contains the phrase 'guaranteed returns' — I need to know before publishing it."},{"title":"Validate user input contains required field","prompt":"A user submitted a support ticket — can you check whether their message actually includes the word 'invoice' before routing it to the billing team?"}],"resultDescription":"Returns a JSON object with a single boolean field 'matches' indicating whether the search string was found within the provided text.","failureModes":["Missing 'text' or 'search' fields in request body returns an error","Empty string inputs may return unexpected matches or errors","Payment failure via x402 results in 402 response and no result","Very large text inputs may exceed payload limits"],"whenToPreferThis":"Use this endpoint when you need a fast, cheap, deterministic substring check on a text string without running a full search index or regex engine yourself. At $0.0009 USDC per call it is ideal for high-frequency agent pipelines that need to gate on keyword presence. Prefer this over LLM-based contains-checks when latency and cost matter and the match is purely literal.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T12:43:56.639Z","isFirstParty":false,"canonicalSlug":"one-engine-text-includes-check-3162b18d"}