{"id":"4760037c-cb6e-4e0d-b803-d1500dc555ee","shortId":"MSwgRp","kind":"x402","title":"Get the current price of the ARB token via a pay-per-call x402 endpoint on Base.","tagline":"Get the current price of the ARB token via a pay-per-call x402 endpoint on Base.","description":"This endpoint returns the current price of the Arbitrum (ARB) token. It is part of a broader suite of APIs offered by lowpaymentfee.com, which covers data analytics, AI/ML inference, finance/Web3 data, and utility services — all payable per request via the x402 protocol on the Base network using USDC.\n\nThe specific endpoint at `/api/v1/tokens/ARB/price` accepts POST requests and returns JSON. Payment is settled on-chain on Base using USDC (contract `0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913`). The maximum amount required per call is 20,000 base units of USDC, which equals $0.02 (USDC uses 6 decimals). No API keys or rate limits are advertised; access is gated solely by the x402 payment header.\n\nDocumentation beyond the landing page is sparse — the /docs, /pricing, /api, and /README pages all render only a \"Connect wallet\" prompt with no additional technical detail. There is no OpenAPI spec, no example request/response payloads, and no description of the response schema. The endpoint is confirmed live (returns a proper 402 challenge), but the exact shape of the price data returned after payment is unknown.","tags":[],"capabilities":["token-price","arb-price","x402-payment","usdc-settlement","base-network","pay-per-call","crypto-market-data"],"categories":["finance","crypto"],"synonyms":["ARB token price","Arbitrum price API","crypto price feed","token price lookup","ARB market data","x402 crypto API"],"warnings":["No OpenAPI or schema documentation available — response format is unknown","All doc/pricing/README pages return only a 'Connect wallet' prompt with no content","The endpoint path suggests token-specific pricing but no details on supported tokens or response fields are documented","No SLA, rate-limit, or uptime guarantees are published"],"endpointUrl":"https://lowpaymentfee.com/api/v1/tokens/ARB/price","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/ARB/price","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The endpoint is confirmed live with a valid x402 402 challenge and clear pricing ($0.02/request in USDC on Base). However, there is no OpenAPI spec, no example request/response, and all documentation pages beyond the landing page are empty ('Connect wallet' only). The response schema is entirely unknown, making this effectively a stub 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'/api/v1/tokens/arb/price':89 '/docs':153 '/pricing':154 '/readme':157 '0.02':123 '000':116 '0x833589fcd6edb6e08f4c7c32d4f71b54bda02913':107 '20':115 '402':195 '6':126 'ARB market data' 'ARB token price' 'Arbitrum price API' 'accept':90 'access':136 'addit':168 'advertis':135 'ai/ml':64 'amount':110 'analyt':63 'api':56,129 'arb':7,25,46 'arb-price' 'arbitrum':45 'base':18,36,81,103,117 'base-network' 'beyond':146 'broader':53 'call':14,32,113 'chain':101 'challeng':196 'confirm':190 'connect':163 'contract':106 'cover':61 'crypto price feed' 'crypto-market-data' 'current':3,21,41 'data':62,67,204 'decim':127 'descript':182 'detail':170 'document':145 'endpoint':16,34,38,87,188 'equal':122 'exact':199 'exampl':177 'finance/web3':66 'gate':138 'get':1,19 'header':144 'infer':65 'json':95 'key':130 'land':148 'limit':133 'live':191 'lowpaymentfee.com':59 'maximum':109 'network':82 'offer':57 'on-chain':99 'openapi':174 'page':149,158 'part':50 'pay':12,30 'pay-per-cal':11,29 'pay-per-call' 'payabl':72 'payload':179 'payment':96,143,207 'per':13,31,73,112 'post':91 'price':4,22,42,203 'prompt':165 'proper':194 'protocol':78 'rate':132 'render':160 'request':74,92 'request/response':178 'requir':111 'respons':185 'return':39,94,192,205 'schema':186 'servic':70 'settl':98 'shape':200 'sole':139 'spars':151 'spec':175 'specif':86 'suit':54 'technic':169 'token':8,26,47 'token price lookup' 'token-price' 'unit':118 'unknown':209 'usdc':84,105,120,124 'usdc-settlement' 'use':83,104,125 'util':69 'via':9,27,75 'wallet':164 'x402':15,33,77,142 'x402 crypto API' 'x402-payment'","prices":[{"id":"3fba84be-04bb-452e-91cd-210473a2a7f5","listingId":"4760037c-cb6e-4e0d-b803-d1500dc555ee","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/ARB/price","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:32:59.397Z"}],"sources":[{"listingId":"4760037c-cb6e-4e0d-b803-d1500dc555ee","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/tokens/ARB/price","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:32:59.397Z","lastSeenAt":"2026-04-23T20:01:24.545Z"}],"details":{"listingId":"4760037c-cb6e-4e0d-b803-d1500dc555ee","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/tokens/ARB/price \\\n  -H \"X-PAYMENT: <x402_payment_header>\" \\\n  -H \"Content-Type: application/json\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The endpoint returns a 402 challenge with maxAmountRequired of 20000 base units of USDC on Base network","source_url":"https://lowpaymentfee.com/api/v1/tokens/ARB/price"},{"claim":"USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/tokens/ARB/price"},{"claim":"All APIs are priced at $0.02 per request with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"The site offers APIs across Data & Analytics, AI & ML, Finance & Web3, and Infrastructure categories","source_url":"https://lowpaymentfee.com"}],"useCases":["Fetching the current ARB token price for portfolio tracking or trading bots","Integrating real-time ARB pricing into a DeFi dashboard","Agent-driven price checks before executing on-chain swaps involving ARB"],"bestFor":["Agents or apps needing on-demand ARB price data without API key management","Pay-per-use crypto price lookups settled on Base with USDC","Lightweight integrations that want zero-commitment pricing"],"notFor":["High-frequency trading requiring sub-second latency and bulk pricing (no documented batch endpoint)","Users who need historical price data or OHLCV candles (not described)","Anyone requiring detailed documentation or SLA guarantees before integration"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-27T19:19:16.221Z"},"updatedAt":"2026-04-23T20:01:24.545Z"}}