{"id":"c0e94deb-c475-4232-af38-8a4f1844b177","shortId":"SdCaU4","kind":"x402","title":"AI-powered web content analysis: summary, key points, entities, sentiment, and credibility signals for any URL.","tagline":"AI-powered web content analysis: summary, key points, entities, sentiment, and credibility signals for any URL.","description":"The `/content/analyze` endpoint on content.hugen.tokyo is part of the Content Intelligence API, a suite of x402-paid endpoints for extracting, summarizing, and analyzing web content. This specific endpoint accepts a URL and returns a structured AI-generated analysis including a summary, key points, named entities (with types), sentiment label and score, topic tags, content type classification, and credibility signals (author presence, date, sources, word count adequacy).\n\nThe API uses a dual-engine extraction system that handles JavaScript-rendered pages, so you don't need your own scraping infrastructure or LLM setup. The endpoint is a simple GET request with a required `url` query parameter (max 4096 chars) and an optional `strip_query` boolean to remove query parameters before processing. Payment is $0.02 USDC per call on Base (x402 protocol). Alternative access methods include an MCP gateway, API keys with free trial credit, and a Python SDK (`x402-pay`).\n\nThe API is live and returns a 402 payment challenge with a sample response demonstrating the output structure. The OpenAPI spec (v3.1.0) is published at `/openapi.json`, and interactive docs are available at `/docs`. The service is part of a broader ecosystem hosted at hugen.tokyo that includes discovery, brokering, and intel services.","tags":[],"capabilities":["web-content-analysis","sentiment-analysis","entity-extraction","topic-classification","credibility-assessment","content-summarization","key-point-extraction","js-rendered-page-support","x402-payment"],"categories":["llm","search","content-extraction"],"synonyms":["web page analyzer","content intelligence","article analysis API","sentiment detection","NER web content","URL summarizer","web scraping AI","content credibility checker","structured content extraction"],"warnings":["Response schemas in the OpenAPI spec are empty — the example response structure is inferred from the 402 challenge sample only.","Root URL returns 404; no dedicated documentation pages found beyond /docs (Swagger UI)."],"endpointUrl":"https://content.hugen.tokyo/content/analyze","protocol":"x402","transport":"http","auth":{"type":"x402","details":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x29322Ea7EcB34aA6164cb2ddeB9CE650902E4f60","amount":"10000","scheme":"exact","network":"eip155:8453","maxTimeoutSeconds":300},{"asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","extra":{"feePayer":"Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"},"payTo":"4du4AfkjJEwch2zk3shkPJVZfyJHNDnNjEWC6AboaS5Z","amount":"10000","scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","maxTimeoutSeconds":300}]},"qualityScore":"0.750","qualityRationale":"The endpoint is live (402 challenge captured), has a published OpenAPI 3.1 spec, clear pricing ($0.02 USDC on Base), and a sample response structure from the 402 challenge. However, the response schema is not formally defined in the OpenAPI spec (empty schema objects), and there are no detailed docs beyond the auto-generated Swagger 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'/docs':220 '/openapi.json':213 '0.02':160 '402':195 '4096':144 'NER web content' 'URL summarizer' 'accept':64 'access':169 'adequaci':102 'ai':2,19,72 'ai-gener':71 'ai-pow':1,18 'altern':168 'analysi':6,23,74 'analyz':58 'api':46,104,175,189 'article analysis API' 'author':96 'avail':218 'base':165 'boolean':151 'broader':227 'broker':235 'call':163 'challeng':197 'char':145 'classif':92 'content':5,22,44,60,90 'content credibility checker' 'content intelligence' 'content-summarization' 'content.hugen.tokyo':39 'count':101 'credibility-assessment' 'credibl':13,30,94 'credit':180 'date':98 'demonstr':202 'discoveri':234 'doc':216 'dual':108 'dual-engin':107 'ecosystem':228 'endpoint':37,53,63,131 'engin':109 'entiti':10,27,81 'entity-extraction' 'extract':55,110 'free':178 'gateway':174 'generat':73 'get':135 'handl':113 'host':229 'hugen.tokyo':231 'includ':75,171,233 'infrastructur':126 'intel':237 'intellig':45 'interact':215 'javascript':115 'javascript-rend':114 'js-rendered-page-support' 'key':8,25,78,176 'key-point-extraction' 'label':85 'live':191 'llm':128 'max':143 'mcp':173 'method':170 'name':80 'need':122 'openapi':207 'option':148 'output':204 'page':117 'paid':52 'paramet':142,155 'part':41,224 'pay':187 'payment':158,196 'per':162 'point':9,26,79 'power':3,20 'presenc':97 'process':157 'protocol':167 'publish':211 'python':183 'queri':141,150,154 'remov':153 'render':116 'request':136 'requir':139 'respons':201 'return':68,193 'sampl':200 'score':87 'scrape':125 'sdk':184 'sentiment':11,28,84 'sentiment detection' 'sentiment-analysis' 'servic':222,238 'setup':129 'signal':14,31,95 'simpl':134 'sourc':99 'spec':208 'specif':62 'strip':149 'structur':70,205 'structured content extraction' 'suit':48 'summar':56 'summari':7,24,77 'system':111 'tag':89 'topic':88 'topic-classification' 'trial':179 'type':83,91 'url':17,34,66,140 'usdc':161 'use':105 'v3.1.0':209 'web':4,21,59 'web page analyzer' 'web scraping AI' 'web-content-analysis' 'word':100 'x402':51,166,186 'x402-paid':50 'x402-pay':185 'x402-payment'","prices":[{"id":"d5db773c-41c2-4985-8a10-88b69c5f66cc","listingId":"c0e94deb-c475-4232-af38-8a4f1844b177","amountUsd":null,"unit":"per_call","nativeCurrency":"USD COIN","nativeAmount":null,"chain":"base","payTo":"0x29322Ea7EcB34aA6164cb2ddeB9CE650902E4f60","paymentMethod":"x402-usd coin","isPrimary":true,"details":{"scheme":"exact","accepts_all":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x29322Ea7EcB34aA6164cb2ddeB9CE650902E4f60","amount":"10000","scheme":"exact","network":"eip155:8453","maxTimeoutSeconds":300},{"asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","extra":{"feePayer":"Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"},"payTo":"4du4AfkjJEwch2zk3shkPJVZfyJHNDnNjEWC6AboaS5Z","amount":"10000","scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:37.923Z"}],"sources":[{"listingId":"c0e94deb-c475-4232-af38-8a4f1844b177","source":"x402_bazaar","sourceId":"https://content.hugen.tokyo/content/analyze","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:37.923Z","lastSeenAt":"2026-04-22T05:32:30.281Z"}],"details":{"listingId":"c0e94deb-c475-4232-af38-8a4f1844b177","quickStartSnippet":"# Using the x402-pay Python SDK\npip install x402-pay\n\nimport x402_pay\nresult = x402_pay.get(\n  'https://content.hugen.tokyo/content/analyze?url=https://example.com/article'\n)\nprint(result.json())","exampleRequest":null,"exampleResponse":{"topics":["artificial-intelligence","machine-learning"],"summary":"The article discusses recent advances in AI technology...","entities":[{"name":"OpenAI","type":"org"}],"sentiment":{"label":"positive","score":0.7},"key_points":["AI models are getting smaller and faster"],"content_type":"news","credibility_signals":{"has_date":true,"has_author":true,"has_sources":true,"word_count_adequate":true}},"schema":null,"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"API described as 'Extract, summarize, and analyze web content in one call. Dual-engine extraction handles JS-rendered pages.'","source_url":"https://content.hugen.tokyo/docs"},{"claim":"Payment is $0.02 USDC on Base per call","source_url":"https://content.hugen.tokyo/content/analyze"},{"claim":"OpenAPI spec version 3.1.0 published at /openapi.json","source_url":"https://content.hugen.tokyo/docs"},{"claim":"Alternative access via MCP gateway at https://mcp.hugen.tokyo/mcp, API keys, and x402-pay Python SDK","source_url":"https://content.hugen.tokyo/content/analyze"},{"claim":"Endpoint accepts url (required, max 4096 chars) and strip_query (optional boolean) query parameters","source_url":"https://content.hugen.tokyo/openapi.json"}],"useCases":["Analyze news articles for sentiment, entities, and credibility before aggregation","Classify and tag web content by topic for automated content curation pipelines","Extract key points from long-form articles for agent-driven research workflows","Assess credibility signals of web sources as part of fact-checking automation","Build structured knowledge bases from unstructured web pages"],"bestFor":["AI agents that need structured analysis of arbitrary web URLs without managing scraping or LLM infrastructure","Content curation and monitoring pipelines requiring sentiment and topic classification","Research automation workflows that need entity extraction and key-point summarization"],"notFor":["Bulk scraping of thousands of pages per minute (per-call pricing at $0.02 adds up)","Extracting raw HTML or full page content (use /content/extract instead)","Offline or non-URL-based text analysis (requires a live URL as input)"],"kindDetails":{},"updatedAt":"2026-04-22T02:24:36.202Z"}}