{"uid":"cap_buGznGzcpadwe1jyPk5lS","slug":"pennyrail-word-frequency-analyzer-52f7075a","name":"PennyRail Word Frequency Analyzer","description":"Machine-readable settlement service","url":"https://pennyrail.vercel.app/api/p/nano/text.word-frequency--word-frequency","method":"POST","headers":{},"bodySchema":{"type":"object","required":["input"],"properties":{"input":{"type":"string"}}},"responseSchema":{"type":"object","additionalProperties":true},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","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":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_4ItL9o93ZFEudUof7oD-9","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Counts and ranks word occurrences in a given text string, returning frequency data for each word","exampleAgentPrompt":"Can you count how often each word appears in this paragraph: 'The quick brown fox jumps over the lazy dog. The dog barked at the fox.'","exampleUseCases":[{"title":"SEO keyword density analysis","prompt":"Take this blog post draft and tell me which words appear most frequently so I can check my keyword density: 'Content marketing is a powerful strategy. Content helps brands reach audiences. Great content builds trust.'"},{"title":"Student essay vocabulary check","prompt":"I want to see how repetitive my writing is — can you count the word frequencies in this essay intro: 'Education is the foundation of society. Education empowers individuals and education drives progress across all fields.'"},{"title":"Social media caption optimization","prompt":"Analyze this product description and show me which words come up the most: 'Our premium coffee is crafted from premium beans. Each premium cup delivers rich, smooth, premium flavor every morning.'"}],"resultDescription":"Returns a JSON object mapping each unique word (typically lowercased) to its integer occurrence count within the input text, allowing the caller to identify high-frequency terms and word distribution patterns.","failureModes":["Empty input string returns empty frequency map or error","Very large text inputs may time out or hit payload limits","Missing required 'input' field returns validation error","Non-string input type may cause schema rejection","Payment failure via x402 protocol returns 402 status before processing begins"],"whenToPreferThis":"Choose this endpoint when you need a quick, pay-per-call word frequency computation without standing up your own NLP infrastructure. It is ideal for lightweight text analytics tasks, NLP preprocessing pipelines, or ad-hoc content analysis where a simple word count is sufficient. Prefer it over heavier NLP APIs when you don't need sentiment, entity recognition, or embeddings — just raw word counts.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T07:21:56.701Z","isFirstParty":false}