{"id":"62462574-1d1f-4714-a4f5-b0dcb7a3ec80","shortId":"aZ7j4h","kind":"x402","title":"Search news articles and X posts around a prediction market price movement timestamp via Grok AI.","tagline":"Search news articles and X posts around a prediction market price movement timestamp via Grok AI.","description":"The `/api/v1/move-context` endpoint on the PolyNews Intelligence API searches for news articles and X (Twitter) posts within a configurable time window around a specific price movement timestamp on Polymarket. It accepts a market question, a Unix timestamp of the price movement, and an optional `windowHours` parameter (default 24 hours) to control the search range. The response returns an array of items including news articles and X posts with titles, URLs, types, and publication timestamps. This endpoint is designed as a precursor to the `/api/v1/analyze-move` endpoint, which uses the gathered context to perform Grok-powered catalyst analysis.\n\nThe endpoint is part of the broader PolyNews API suite, which provides real-time Polymarket and Kalshi prediction market intelligence for autonomous trading agents. It costs $0.05 USDC per call, paid on Base via the x402 micropayment protocol — no API keys or subscriptions required. The USDC receiver address is `0x6ee49a7872844397Fb52870Cc07b308fFADC9427`. The full API includes 16 endpoints across four pricing tiers: free market discovery, standard data feeds ($0.001–$0.005), premium Grok AI analysis ($0.05–$0.08), and alpha-tier smart money/arbitrage endpoints ($0.01–$0.10).\n\nThe endpoint returned a valid HTTP 402 x402 challenge during probing, confirming it is live. The OpenAPI 3.1 spec provides full request/response schemas, and the docs page lists all endpoints with pricing and quick-start code examples in Python and curl.","tags":[],"capabilities":["news-search","x-posts-search","prediction-market-context","price-movement-analysis","time-window-search","x402-micropayment","grok-ai-powered","polymarket-data"],"categories":["search","prediction-markets","news"],"synonyms":["prediction market news","polymarket price movement context","twitter posts around price move","news around timestamp","market catalyst search","move context API","polymarket news search","x402 news endpoint"],"warnings":["Example response is inferred from the OpenAPI schema and x402 outputSchema — no actual 200 response was captured during probing.","The outputSchema in the x402 challenge shows a slightly different response shape (data.news, data.xPosts) than the OpenAPI spec (items array), suggesting possible schema inconsistency."],"endpointUrl":"https://polynews.news/api/v1/move-context","protocol":"x402","transport":"http","auth":{"type":"x402","details":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x6ee49a7872844397Fb52870Cc07b308fFADC9427","scheme":"exact","network":"base","mimeType":"application/json","resource":"https://polynews.news/api/v1/move-context","description":"Search for news and X posts around a specific price movement timestamp","outputSchema":{"input":{"type":"http","method":"POST","bodyType":"json","bodyFields":{"windowHours":24,"moveTimestamp":1740003600000,"marketQuestion":"Democratic Presidential Nominee 2028"},"discoverable":true},"output":{"type":"object","properties":{"data":{"type":"object","properties":{"news":{"type":"array"},"xPosts":{"type":"array"}}}}}},"maxAmountRequired":"50000","maxTimeoutSeconds":300}]},"qualityScore":"0.850","qualityRationale":"Full OpenAPI 3.1 schema with request/response definitions, live 402 challenge confirmed, clear pricing ($0.05 USDC on Base), docs page with quick-start examples. Slightly below 0.9 because no real example response body was captured (only the 402 challenge), so the response shape is inferred from the schema and 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'/api/v1/move-context':34 '0.001':197 '0.005':198 '0.01':212 '0.05':157,203 '0.08':204 '0.10':213 '0x6ee49a7872844397fb52870cc07b308ffadc9427':180 '16':185 '24':80 '3.1':231 '402':220 'accept':63 'across':187 'address':178 'agent':154 'ai':16,32,201 'alpha':207 'alpha-ti':206 'analysi':129,202 'api':40,138,170,183 'around':7,23,54 'array':91 'articl':3,19,44,96 'autonom':152 'base':163 'broader':136 'call':160 'catalyst':128 'challeng':222 'code':250 'configur':51 'confirm':225 'context':122 'control':83 'cost':156 'curl':255 'data':195 'default':79 'design':110 'discoveri':193 'doc':239 'endpoint':35,108,117,131,186,211,215,243 'exampl':251 'feed':196 'four':188 'free':191 'full':182,234 'gather':121 'grok':15,31,126,200 'grok-ai-powered' 'grok-pow':125 'hour':81 'http':219 'includ':94,184 'intellig':39,150 'item':93 'kalshi':147 'key':171 'list':241 'live':228 'market':10,26,65,149,192 'market catalyst search' 'micropay':167 'money/arbitrage':210 'move context API' 'movement':12,28,58,73 'news':2,18,43,95 'news around timestamp' 'news-search' 'openapi':230 'option':76 'page':240 'paid':161 'paramet':78 'part':133 'per':159 'perform':124 'polymarket':61,145 'polymarket news search' 'polymarket price movement context' 'polymarket-data' 'polynew':38,137 'post':6,22,48,99 'power':127 'precursor':113 'predict':9,25,148 'prediction market news' 'prediction-market-context' 'premium':199 'price':11,27,57,72,189,245 'price-movement-analysis' 'probe':224 'protocol':168 'provid':141,233 'public':105 'python':253 'question':66 'quick':248 'quick-start':247 'rang':86 'real':143 'real-tim':142 'receiv':177 'request/response':235 'requir':174 'respons':88 'return':89,216 'schema':236 'search':1,17,41,85 'smart':209 'spec':232 'specif':56 'standard':194 'start':249 'subscript':173 'suit':139 'tier':190,208 'time':52,144 'time-window-search' 'timestamp':13,29,59,69,106 'titl':101 'trade':153 'twitter':47 'twitter posts around price move' 'type':103 'unix':68 'url':102 'usdc':158,176 'use':119 'valid':218 'via':14,30,164 'window':53 'windowhour':77 'within':49 'x':5,21,46,98 'x-posts-search' 'x402':166,221 'x402 news endpoint' 'x402-micropayment'","prices":[{"id":"ae13125f-5e6b-478d-9580-6e1801b18c93","listingId":"62462574-1d1f-4714-a4f5-b0dcb7a3ec80","amountUsd":null,"unit":"per_call","nativeCurrency":"USD COIN","nativeAmount":"50000","chain":"base","payTo":"0x6ee49a7872844397Fb52870Cc07b308fFADC9427","paymentMethod":"x402-usd coin","isPrimary":true,"details":{"scheme":"exact","mime_type":"application/json","accepts_all":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x6ee49a7872844397Fb52870Cc07b308fFADC9427","scheme":"exact","network":"base","mimeType":"application/json","resource":"https://polynews.news/api/v1/move-context","description":"Search for news and X posts around a specific price movement timestamp","outputSchema":{"input":{"type":"http","method":"POST","bodyType":"json","bodyFields":{"windowHours":24,"moveTimestamp":1740003600000,"marketQuestion":"Democratic Presidential Nominee 2028"},"discoverable":true},"output":{"type":"object","properties":{"data":{"type":"object","properties":{"news":{"type":"array"},"xPosts":{"type":"array"}}}}}},"maxAmountRequired":"50000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:35.471Z"}],"sources":[{"listingId":"62462574-1d1f-4714-a4f5-b0dcb7a3ec80","source":"x402_bazaar","sourceId":"https://polynews.news/api/v1/move-context","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:35.471Z","lastSeenAt":"2026-04-22T07:32:45.518Z"}],"details":{"listingId":"62462574-1d1f-4714-a4f5-b0dcb7a3ec80","quickStartSnippet":"curl -X POST https://polynews.news/api/v1/move-context \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-Payment: <x402-payment-proof>\" \\\n  -d '{\"marketQuestion\": \"Democratic Presidential Nominee 2028\", \"moveTimestamp\": 1740003600000, \"windowHours\": 24}'","exampleRequest":{"windowHours":24,"moveTimestamp":1740003600000,"marketQuestion":"Democratic Presidential Nominee 2028"},"exampleResponse":{"data":{"news":[{"url":"https://example.com/article-1","type":"news","title":"Newsom surges in 2028 Democratic primary polls","publishedAt":"2025-02-19T21:00:00Z"}],"xPosts":[{"url":"https://x.com/politico/status/123456","type":"x","title":"@politico: Breaking — Newsom announces exploratory committee","publishedAt":"2025-02-19T20:30:00Z"}]}},"schema":{"input":{"type":"http","method":"POST","bodyType":"json","bodyFields":{"windowHours":24,"moveTimestamp":1740003600000,"marketQuestion":"Democratic Presidential Nominee 2028"},"discoverable":true},"output":{"type":"object","properties":{"data":{"type":"object","properties":{"news":{"type":"array"},"xPosts":{"type":"array"}}}}}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The /api/v1/move-context endpoint costs $0.05 USDC per call","source_url":"https://polynews.news/docs"},{"claim":"The endpoint searches for news and X posts in a configurable time window around a price movement timestamp","source_url":"https://polynews.news/docs"},{"claim":"USDC receiver address is 0x6ee49a7872844397Fb52870Cc07b308fFADC9427 on Base","source_url":"https://polynews.news/docs"},{"claim":"The endpoint is designed to be used before /api/v1/analyze-move for catalyst analysis","source_url":"https://polynews.news/docs"},{"claim":"The x402 challenge returned maxAmountRequired of 50000 (i.e. $0.05 USDC with 6 decimals) confirming the endpoint is live","source_url":"https://polynews.news/api/v1/move-context"},{"claim":"The API has four pricing tiers: free, standard ($0.001–$0.005), premium ($0.05–$0.08), and alpha ($0.01–$0.10)","source_url":"https://polynews.news/docs"}],"useCases":["Gather news and social media context around a sudden Polymarket price spike or drop before running catalyst analysis","Build automated trading agent pipelines that detect price movements, fetch context, then analyze catalysts","Monitor prediction market events by correlating price changes with real-world news in a configurable time window","Feed contextual news data into downstream AI analysis for prediction market trading decisions","Audit historical price movements by retrieving what news and X posts were published around the time of the move"],"bestFor":["Autonomous prediction market trading agents needing contextual news around price movements","Developers building Polymarket analysis pipelines with x402 micropayments","Researchers correlating prediction market price changes with news events","AI agents that chain move-context → analyze-move for end-to-end catalyst identification"],"notFor":["General-purpose news search unrelated to prediction markets","Users who need free unlimited API access (this endpoint costs $0.05 per call)","Real-time streaming news feeds (this is a point-in-time search around a timestamp)"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-03-02T05:40:06.808Z"},"updatedAt":"2026-04-22T07:32:45.518Z"}}