{"uid":"cap_v47eoVsxhW6P8nBu6yDQo","slug":"saylor-innovations-text-tools-keyword-keyphrase-extraction-rake-6455f8e0","name":"Saylor Innovations Text Tools – Keyword & Keyphrase Extraction (RAKE)","description":"Keyword and key phrase extraction from text with relevance scores (RAKE)","url":"https://saylorinnovations.com/api/text/keywords?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["text"],"properties":{"text":{"type":"string","description":"Text to analyze (up to 20000 characters)."}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string","const":"json"},"example":{"type":"object","required":["keywords"],"properties":{"count":{"type":"number","description":"Number of items returned"},"method":{"type":"string","description":"Method used"},"keywords":{"type":"array","items":{"type":"object","required":["phrase","score"],"properties":{"count":{"type":"number","description":"Number of items returned"},"score":{"type":"number","description":"Score from 0 (worst) to 100 (best)"},"words":{"type":"number","description":"Words"},"phrase":{"type":"string"}}},"description":"Keywords or key phrases"},"checked_at":{"type":["string","null"],"description":"Time the check was run (UTC)"}}}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","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":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_W-nxdARUERsTeKixCe6ia","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Extracts keywords and key phrases from a block of text using the RAKE algorithm, returning each phrase with a relevance score from 0–100.","exampleAgentPrompt":"Can you pull out the most important keywords and key phrases from this article text and show me their relevance scores? Here's the text: 'Artificial intelligence is transforming how businesses operate, with machine learning models now automating complex decision-making processes across finance, healthcare, and logistics.'","exampleUseCases":[{"title":"SEO keyword discovery from content","prompt":"I've written a 1,500-word blog post about cloud computing trends. Can you extract the top keywords and key phrases from it, with their relevance scores, so I know which terms to optimize for?"},{"title":"Summarizing customer feedback themes","prompt":"Here are 50 customer reviews pasted together — can you run keyword extraction on them to surface the most frequently important phrases and rank them by relevance score?"},{"title":"Tagging research paper automatically","prompt":"I need to auto-tag this research abstract with its key topics. Can you extract the highest-scoring keywords and phrases from it using RAKE so I can use them as metadata tags?"}],"resultDescription":"Returns a JSON object with an array of keyword/keyphrase objects, each containing the phrase string, a relevance score (0–100), and word count. Also includes total count of phrases returned, the extraction method used ('RAKE'), and a UTC timestamp of when the analysis was run.","failureModes":["Missing 'text' query parameter returns an error","Text exceeding 20,000 characters may be rejected or truncated","Very short or single-word inputs may return low-quality or empty keyword arrays","Non-English text may produce lower-quality results depending on RAKE language support","Network or upstream service errors return a non-200 HTTP response"],"whenToPreferThis":"Choose this endpoint when you need lightweight, fast, unsupervised keyword and keyphrase extraction with relevance scoring from arbitrary text — especially when you don't want to run your own NLP pipeline. It is well-suited for SEO analysis, auto-tagging, content summarization prep, and theme detection. Prefer it over full LLM summarization when you want deterministic, score-ranked phrase output rather than prose summaries.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-30T19:07:29.641Z","isFirstParty":false,"canonicalSlug":"saylor-innovations-text-tools-keyword-keyphrase-extraction-rake-6455f8e0"}