{"id":"fb9973da-7d66-4874-9ada-1f062a43c7ba","shortId":"n9SLaC","kind":"x402","title":"Retrieve OKB token data via x402 micropayment on Base for $0.02 per request.","tagline":"Retrieve OKB token data via x402 micropayment on Base for $0.02 per request.","description":"This endpoint at lowpaymentfee.com provides token data for OKB (OKX's native token) as part of a broader suite of crypto, finance, AI, and utility APIs. All endpoints on the platform are gated behind the x402 payment protocol, settling in USDC on the Base network at $0.02 per call. No API keys or accounts are required — callers simply attach an X-PAYMENT header with a valid x402 payment proof.\n\nThe specific endpoint `/api/v1/tokens/OKB` falls under the Finance & Web3 category of the platform, which also offers price feeds, exchange rates, token quotes, and gas estimates. The platform advertises no rate limits and instant access. The x402 challenge confirms the endpoint is live, accepts POST requests, and requires a maximum of 20,000 base units of USDC (0.02 USD, since USDC uses 6 decimals) per call, payable to address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3` on Base.\n\nDocumentation is extremely sparse — the docs, pricing, and API pages all render only a \"Connect wallet\" prompt with no further technical detail. There is no OpenAPI schema, no example request/response payloads, and no description of what fields the token endpoint returns. The response MIME type is `application/json`, but the actual schema is unknown.","tags":[],"capabilities":["x402-payment","usdc-base","token-data","crypto-market-data","no-api-key","per-request-billing"],"categories":["crypto","finance"],"synonyms":["OKB token info","OKB price","token lookup","crypto token API","OKB market data","x402 crypto API","lowpaymentfee"],"warnings":["No API documentation available — docs, pricing, and API pages all show only 'Connect wallet'","No OpenAPI or output schema provided; response format is unknown","The endpoint path suggests token-specific data for OKB, but actual response fields are undocumented","No SLA, rate limit, or uptime guarantees documented"],"endpointUrl":"https://lowpaymentfee.com/api/v1/tokens/OKB","protocol":"x402","transport":"http","auth":{"type":"x402","details":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3","scheme":"exact","network":"base","mimeType":"application/json","resource":"https://lowpaymentfee.com/api/v1/tokens/OKB","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The endpoint is confirmed live via a valid 402 challenge and pricing is clear ($0.02 USDC on Base). However, there is no documentation, no OpenAPI schema, no example requests or responses, and no description of what the endpoint actually returns. The listing is essentially a stub with only the x402 challenge and a landing page to go 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'0.02':11,24,73,153 '000':148 '0x1a2b13e97f5f837c8f9fa1f95a1484b7c70d85f3':165 '20':147 '6':158 'OKB market data' 'OKB price' 'OKB token info' 'accept':139 'access':130 'account':80 'actual':217 'address':164 'advertis':124 'ai':49 'also':111 'api':52,77,176 'application/json':214 'attach':85 'base':9,22,70,149,167 'behind':60 'broader':44 'call':75,161 'caller':83 'categori':106 'challeng':133 'confirm':134 'connect':182 'crypto':47 'crypto token API' 'crypto-market-data' 'data':4,17,33 'decim':159 'descript':201 'detail':189 'doc':173 'document':168 'endpoint':28,54,99,136,207 'estim':121 'exampl':196 'exchang':115 'extrem':170 'fall':101 'feed':114 'field':204 'financ':48,104 'gas':120 'gate':59 'header':90 'instant':129 'key':78 'limit':127 'live':138 'lowpaymentfee' 'lowpaymentfee.com':30 'maximum':145 'micropay':7,20 'mime':211 'nativ':38 'network':71 'no-api-key' 'offer':112 'okb':2,15,35 'okx':36 'openapi':193 'page':177 'part':41 'payabl':162 'payload':198 'payment':63,89,95 'per':12,25,74,160 'per-request-billing' 'platform':57,109,123 'post':140 'price':113,174 'prompt':184 'proof':96 'protocol':64 'provid':31 'quot':118 'rate':116,126 'render':179 'request':13,26,141 'request/response':197 'requir':82,143 'respons':210 'retriev':1,14 'return':208 'schema':194,218 'settl':65 'simpli':84 'sinc':155 'spars':171 'specif':98 'suit':45 'technic':188 'token':3,16,32,39,117,206 'token lookup' 'token-data' 'type':212 'unit':150 'unknown':220 'usd':154 'usdc':67,152,156 'usdc-base' 'use':157 'util':51 'valid':93 'via':5,18 'wallet':183 'web3':105 'x':88 'x-payment':87 'x402':6,19,62,94,132 'x402 crypto API' 'x402-payment'","prices":[{"id":"ee69cab4-eab9-4edc-9e1d-04f0091624b0","listingId":"fb9973da-7d66-4874-9ada-1f062a43c7ba","amountUsd":null,"unit":"per_call","nativeCurrency":"USD COIN","nativeAmount":"20000","chain":"base","payTo":"0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3","paymentMethod":"x402-usd coin","isPrimary":true,"details":{"scheme":"exact","mime_type":"application/json","accepts_all":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3","scheme":"exact","network":"base","mimeType":"application/json","resource":"https://lowpaymentfee.com/api/v1/tokens/OKB","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:39:12.346Z"}],"sources":[{"listingId":"fb9973da-7d66-4874-9ada-1f062a43c7ba","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/tokens/OKB","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:39:12.346Z","lastSeenAt":"2026-04-24T01:31:50.437Z"}],"details":{"listingId":"fb9973da-7d66-4874-9ada-1f062a43c7ba","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/tokens/OKB \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402_payment_proof>\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"All endpoints cost $0.02 per request with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"x402 challenge confirms 20000 base units of USDC (asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) on Base, which equals $0.02","source_url":"https://lowpaymentfee.com/api/v1/tokens/OKB"},{"claim":"Platform offers Finance & Web3 APIs including price feeds, exchange rates, token quotes, and gas estimates","source_url":"https://lowpaymentfee.com"}],"useCases":["Fetching OKB token metadata or pricing in an automated trading pipeline","Agents that need on-demand crypto token data without managing API keys","Micropayment-gated data retrieval for Web3 dashboards"],"bestFor":["Autonomous agents that can settle x402 payments in USDC on Base","Developers wanting zero-signup, pay-per-call crypto data","Low-volume or sporadic token data lookups where $0.02/call is economical"],"notFor":["High-frequency trading requiring sub-second latency guarantees (no SLA documented)","Users who need detailed API documentation or guaranteed response schemas before integrating","Consumers without a Base-compatible USDC wallet"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:39.582Z"},"updatedAt":"2026-04-24T01:31:50.437Z"}}