{"uid":"cap_6cjFpKmV4IfgBfnUHylEe","slug":"x-pay-keywords-extraction-051114fa","name":"X Pay Keywords Extraction","description":"AI keyword extraction from text","url":"https://www.api-xpay.com/x402/keywords?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method","bodyType","body"],"properties":{"body":{"type":"object"},"type":{"type":"string","const":"http"},"method":{"enum":["POST","PUT","PATCH"],"type":"string"},"headers":{"type":"object","additionalProperties":{"type":"string"}},"bodyType":{"enum":["json","form-data","text"],"type":"string"},"queryParams":{"type":"object","additionalProperties":{"type":"string"}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"asset":"USDC","network":"base","success":true,"keywords":["payments","base","usdc"]}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"10","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":"$10/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"10","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"10","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_4GviRhD6KywgVRaan5IgX","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"10","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Extracts relevant keywords from provided content via a pay-per-request API using USDC on Base via x402 protocol.","exampleAgentPrompt":"Pull out the main keywords from this paragraph about blockchain payments: 'USDC on Base enables fast, low-cost payments for Web3 applications using the x402 protocol.'","exampleUseCases":[{"title":"SEO keyword tagging for blog post","prompt":"Extract the most important keywords from this blog post introduction so I can tag it properly for SEO: 'Decentralized finance is transforming how people move money across borders without traditional banks.'"},{"title":"Content categorization for news article","prompt":"I need to identify the key topics in this news article excerpt about crypto regulation — can you pull out the keywords so I can categorize it in my CMS?"},{"title":"Keyword indexing for product descriptions","prompt":"Analyze this product description and give me the relevant keywords I should use to index it in our search engine: 'Lightweight ergonomic laptop stand with adjustable height and aluminum construction.'"}],"resultDescription":"Returns a JSON object containing a 'keywords' array of extracted keyword strings, a 'success' boolean, the payment asset (USDC), and the network (base) used for the transaction.","failureModes":["Payment not included or invalid x402 payment header — returns 402 Payment Required","Malformed request body or missing required fields (type, method, bodyType, body) — returns 400 Bad Request","Empty or unprocessable input content — may return empty keywords array or error","Network or service downtime — returns 5xx error","Incorrect bodyType enum value — schema validation failure"],"whenToPreferThis":"Choose this endpoint when you need a lightweight, pay-per-use keyword extraction service billed in USDC on Base with no subscription required. Ideal for agents operating in Web3 or crypto-native environments that already handle x402 payments, and when you need simple keyword lists without complex NLP pipeline setup.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T02:21:07.001Z","isFirstParty":false,"canonicalSlug":"x-pay-keywords-extraction-051114fa"}