{"uid":"cap_xaLhigZrgROFns5RVtDYG","slug":"one-engine-word-bigram-extractor-d3c267da","name":"ONE Engine Word Bigram Extractor","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-token/word-bigrams/t7?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":"0.0065","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":"$0.0065/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0065","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0065","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_2k5RL4yLis0US4t3m9ckG","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.0065","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Extracts all consecutive word bigrams (two-word pairs) from a given text string up to 50,000 characters.","exampleAgentPrompt":"Extract all word bigrams from this text: 'The quick brown fox jumps over the lazy dog. The dog barked loudly.'","exampleUseCases":[{"title":"NLP feature engineering pipeline","prompt":"Take this product review text and extract all word bigrams from it so I can use them as features for my sentiment classifier: 'The battery life is excellent but the screen resolution is disappointing.'"},{"title":"Keyword co-occurrence analysis","prompt":"I have a news article here — can you pull out every consecutive two-word pair from it so I can see which words tend to appear together? Here's the text: 'Global markets surged today as inflation fears eased and investor confidence returned to record highs.'"},{"title":"Document similarity preprocessing","prompt":"Break this paragraph into word bigrams for me so I can compare it against other documents using bigram overlap: 'Machine learning models require large amounts of labeled training data to achieve high accuracy on complex tasks.'"}],"resultDescription":"Returns an object containing the extracted word bigrams from the input text, likely as an array or map of consecutive two-word token pairs derived from the input string.","failureModes":["Text exceeds 50,000 character limit — request rejected or truncated","Empty or missing 'text' field — validation error returned","Payment not authorized via x402/Base — 402 Payment Required response","Malformed JSON body — 400 Bad Request","Service unavailable or rate-limited — 5xx error"],"whenToPreferThis":"Choose this endpoint when you need a lightweight, pay-per-call bigram extraction utility without spinning up your own NLP infrastructure. Ideal for agents running NLP preprocessing pipelines, keyword analysis, or document similarity tasks at low cost ($0.0065 USDC per call) on Base via x402. Best for texts under 50,000 characters where you need raw bigram output fast.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T12:44:36.758Z","isFirstParty":false,"canonicalSlug":"one-engine-word-bigram-extractor-13f6b611"}