{"id":"82e02c19-6ea0-4d79-a885-bb66adb39cec","shortId":"xNtgBc","kind":"x402","title":"AI-generated executive summary of crypto market trends, narratives, and momentum shifts via x402 micropayment.","tagline":"AI-generated executive summary of crypto market trends, narratives, and momentum shifts via x402 micropayment.","description":"Naiko x402 API provides a pay-per-call endpoint that returns an AI-generated executive summary of current cryptocurrency market trends, top narratives, and notable momentum shifts. The endpoint is accessed via the x402 protocol on Base (EIP-155 chain 8453), settling payments in USDC. Each call costs $0.02 (20,000 base units of USDC with 6 decimals) and supports gas-sponsored transactions, smart wallet compatibility, and ERC-4337 account abstraction.\n\nThe endpoint responds with JSON (application/json) and uses the \"exact\" payment scheme with Permit2-based asset transfers. The facilitator wallet is at 0xB836A641DAe76424861F7f1FCb37c1295E44E329. The x402 challenge confirms the endpoint is live and operational, returning a standard 402 Payment Required response to unauthenticated callers.\n\nDocumentation is sparse — no OpenAPI spec, dedicated docs page, or README is available. The landing page at x402.naiko.io describes the service as \"pay-per-call crypto intelligence powered by x402 protocol\" and links to a health/endpoints page and a .well-known/x402 discovery endpoint. Beyond the resource description embedded in the x402 challenge, no further details about the response schema or data sources are provided.","tags":[],"capabilities":["crypto-market-summary","ai-generated-analysis","x402-micropayment","usdc-payment","base-l2","gas-sponsored","smart-wallet","erc4337","permit2-transfer","pay-per-call"],"categories":["crypto","llm","market-data"],"synonyms":["crypto market summary","market trends API","narrative tracker","momentum shifts","crypto intelligence","executive briefing","market analysis endpoint","x402 crypto API"],"warnings":["No OpenAPI or schema documentation available — response structure is unknown","No /docs, /pricing, /api, or /README pages exist on the origin","Response format and fields must be discovered empirically after payment","Data sources and update frequency for the AI-generated summary are not disclosed"],"endpointUrl":"https://x402.naiko.io/alpha/executive","protocol":"x402","transport":"http","auth":{"type":"x402","details":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0xB836A641DAe76424861F7f1FCb37c1295E44E329","amount":"20000","scheme":"exact","network":"eip155:8453","maxTimeoutSeconds":300}]},"qualityScore":"0.450","qualityRationale":"The x402 challenge is live and well-formed, confirming the endpoint exists and its purpose. However, there is no OpenAPI spec, no documentation, no response schema, and no example responses available. The resource description in the challenge and the landing page tagline are the only sources of information about what the endpoint 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'-4337':104 '/x402':194 '0.02':83 '000':85 '0xb836a641dae76424861f7f1fcb37c1295e44e329':130 '20':84 '402':144 '6':91 '8453':75 'abstract':106 'access':65 'account':105 'ai':2,18,47 'ai-gener':1,17,46 'ai-generated-analysis' 'api':35 'application/json':112 'asset':123 'avail':163 'base':71,86,122 'base-l2' 'beyond':197 'call':41,81,176 'caller':150 'chain':74 'challeng':133,205 'compat':101 'confirm':134 'cost':82 'crypto':7,23,177 'crypto intelligence' 'crypto market summary' 'crypto-market-summary' 'cryptocurr':53 'current':52 'data':214 'decim':92 'dedic':157 'describ':169 'descript':200 'detail':208 'discoveri':195 'doc':158 'document':151 'eip':72 'embed':201 'endpoint':42,63,108,136,196 'erc':103 'erc4337' 'exact':116 'execut':4,20,49 'executive briefing' 'facilit':126 'gas':96 'gas-sponsor':95 'gas-sponsored' 'generat':3,19,48 'health/endpoints':187 'intellig':178 'json':111 'known':193 'land':165 'link':184 'live':138 'market':8,24,54 'market analysis endpoint' 'market trends API' 'micropay':16,32 'momentum':12,28,60 'momentum shifts' 'naiko':33 'narrat':10,26,57 'narrative tracker' 'notabl':59 'openapi':155 'oper':140 'page':159,166,188 'pay':39,174 'pay-per-cal':38,173 'pay-per-call' 'payment':77,117,145 'per':40,175 'permit2':121 'permit2-based':120 'permit2-transfer' 'power':179 'protocol':69,182 'provid':36,217 'readm':161 'requir':146 'resourc':199 'respond':109 'respons':147,211 'return':44,141 'schema':212 'scheme':118 'servic':171 'settl':76 'shift':13,29,61 'smart':99 'smart-wallet' 'sourc':215 'spars':153 'spec':156 'sponsor':97 'standard':143 'summari':5,21,50 'support':94 'top':56 'transact':98 'transfer':124 'trend':9,25,55 'unauthent':149 'unit':87 'usdc':79,89 'usdc-payment' 'use':114 'via':14,30,66 'wallet':100,127 'well':192 'well-known':191 'x402':15,31,34,68,132,181,204 'x402 crypto API' 'x402-micropayment' 'x402.naiko.io':168","prices":[{"id":"7d7df2ba-bda2-4002-9f30-6d08d727bee4","listingId":"82e02c19-6ea0-4d79-a885-bb66adb39cec","amountUsd":null,"unit":"per_call","nativeCurrency":"USD COIN","nativeAmount":null,"chain":"base","payTo":"0xB836A641DAe76424861F7f1FCb37c1295E44E329","paymentMethod":"x402-usd coin","isPrimary":true,"details":{"scheme":"exact","accepts_all":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0xB836A641DAe76424861F7f1FCb37c1295E44E329","amount":"20000","scheme":"exact","network":"eip155:8453","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:34.027Z"}],"sources":[{"listingId":"82e02c19-6ea0-4d79-a885-bb66adb39cec","source":"x402_bazaar","sourceId":"https://x402.naiko.io/alpha/executive","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:34.027Z","lastSeenAt":"2026-04-22T04:02:49.303Z"}],"details":{"listingId":"82e02c19-6ea0-4d79-a885-bb66adb39cec","quickStartSnippet":"# Requires an x402-compatible client that handles the 402 challenge and USDC payment on Base.\ncurl -X GET https://x402.naiko.io/alpha/executive\n# Returns 402 with x402 challenge. After payment, returns JSON executive summary.","exampleRequest":null,"exampleResponse":null,"schema":null,"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The endpoint returns an AI-generated executive summary of current market trends, top narratives, and notable momentum shifts.","source_url":"https://x402.naiko.io/alpha/executive"},{"claim":"Payment is 20,000 base units of USDC on Base (EIP-155:8453), equivalent to $0.02.","source_url":"https://x402.naiko.io/alpha/executive"},{"claim":"Supports gas-sponsored transactions, smart wallet, and ERC-4337 deployment.","source_url":"https://x402.naiko.io/alpha/executive"},{"claim":"Landing page describes the service as pay-per-call crypto intelligence powered by x402 protocol.","source_url":"https://x402.naiko.io"}],"useCases":["Fetching a quick AI-generated overview of current crypto market conditions for a trading dashboard","Providing an agent with a concise market briefing before executing portfolio rebalancing decisions","Embedding daily or on-demand market narrative summaries into newsletters or alert systems","Powering a chatbot that answers questions about current crypto market momentum"],"bestFor":["AI agents needing a concise crypto market snapshot on demand","Developers building x402-native pay-per-call workflows on Base","Applications that need a quick narrative-level summary rather than raw price feeds"],"notFor":["Historical or granular tick-level market data retrieval","Non-crypto market analysis (equities, forex, commodities)","Users who cannot settle USDC payments on Base L2"],"kindDetails":{},"updatedAt":"2026-04-22T01:07:13.154Z"}}