{"id":"e8e1a4c8-536f-4f16-af1f-0a31e37a66b8","shortId":"KDy8vj","kind":"x402","title":"Query STORJ wallet balance via x402 micropayment on Base for $0.02 per request.","tagline":"Query STORJ wallet balance via x402 micropayment on Base for $0.02 per request.","description":"This endpoint at lowpaymentfee.com returns the wallet balance for the STORJ token. It is part of a broader suite of pay-per-call APIs offered by the same provider, spanning data analytics, AI/ML inference, finance/Web3, and infrastructure utilities. All endpoints use the x402 payment protocol, settling in USDC on the Base network.\n\nThe specific endpoint `/api/v1/wallet/STORJ/balance` accepts POST requests and returns JSON. The x402 challenge advertises a maxAmountRequired of 20,000 base units of USDC (asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913, which has 6 decimals), equating to $0.02 per request. Payment is made via the \"exact\" scheme to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3 with a 300-second timeout.\n\nDocumentation is extremely sparse — the docs, API, pricing, and README pages all render only a \"Connect wallet\" prompt with no additional technical detail. There is no OpenAPI spec, no request/response schema, and no usage examples available from the crawled material. The endpoint is confirmed live (402 challenge returned), but the actual response format after payment is unknown. The provider advertises no API keys, no rate limits, and instant access across all their endpoints.","tags":[],"capabilities":["crypto-wallet-balance","storj-balance","x402-payment","usdc-settlement","base-network","pay-per-call"],"categories":["crypto","finance"],"synonyms":["STORJ balance","STORJ wallet","token balance check","crypto balance API","wallet balance lookup","STORJ token balance","blockchain wallet query"],"warnings":["No API documentation available — docs, pricing, and README pages all show only 'Connect wallet'","No request or response schema provided; actual output format is unknown","No OpenAPI or machine-readable spec found","Endpoint purpose inferred solely from URL path; no authoritative description of what data is returned"],"endpointUrl":"https://lowpaymentfee.com/api/v1/wallet/STORJ/balance","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/wallet/STORJ/balance","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The endpoint is live and returns a valid x402 challenge, confirming pricing and settlement details. However, there is no OpenAPI spec, no request/response schema, no documentation beyond a wallet-connect prompt, and no examples. The actual behavior after payment is entirely unknown from available 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'0.02':11,24,111 '000':98 '0x1a2b13e97f5f837c8f9fa1f95a1484b7c70d85f3':123 '0x833589fcd6edb6e08f4c7c32d4f71b54bda02913':104 '20':97 '300':126 '402':174 '6':107 'STORJ balance' 'STORJ token balance' 'STORJ wallet' 'accept':84 'access':197 'across':198 'actual':179 'addit':149 'address':122 'advertis':93,188 'ai/ml':60 'analyt':59 'api':51,135,190 'asset':103 'avail':164 'balanc':4,17,34 'base':9,22,78,99 'base-network' 'blockchain wallet query' 'broader':44 'call':50 'challeng':92,175 'confirm':172 'connect':144 'crawl':167 'crypto balance API' 'crypto-wallet-balance' 'data':58 'decim':108 'detail':151 'doc':134 'document':129 'endpoint':28,67,82,170,201 'equat':109 'exact':119 'exampl':163 'extrem':131 'finance/web3':62 'format':181 'infer':61 'infrastructur':64 'instant':196 'json':89 'key':191 'limit':194 'live':173 'lowpaymentfee.com':30 'made':116 'materi':168 'maxamountrequir':95 'micropay':7,20 'network':79 'offer':52 'openapi':155 'page':139 'part':41 'pay':48 'pay-per-cal':47 'pay-per-call' 'payment':71,114,183 'per':12,25,49,112 'post':85 'price':136 'prompt':146 'protocol':72 'provid':56,187 'queri':1,14 'rate':193 'readm':138 'render':141 'request':13,26,86,113 'request/response':158 'respons':180 'return':31,88,176 'schema':159 'scheme':120 'second':127 'settl':73 'span':57 'spars':132 'spec':156 'specif':81 'storj':2,15,37 'storj-balance' 'suit':45 'technic':150 'timeout':128 'token':38 'token balance check' 'unit':100 'unknown':185 'usag':162 'usdc':75,102 'usdc-settlement' 'use':68 'util':65 'via':5,18,117 'wallet':3,16,33,145 'wallet balance lookup' 'x402':6,19,70,91 'x402-payment'","prices":[{"id":"db19a44e-2119-491a-b783-1c4a5a0f9d3c","listingId":"e8e1a4c8-536f-4f16-af1f-0a31e37a66b8","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/wallet/STORJ/balance","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T19:28:24.576Z"}],"sources":[{"listingId":"e8e1a4c8-536f-4f16-af1f-0a31e37a66b8","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/wallet/STORJ/balance","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T19:28:24.576Z","lastSeenAt":"2026-04-23T11:04:02.709Z"}],"details":{"listingId":"e8e1a4c8-536f-4f16-af1f-0a31e37a66b8","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/wallet/STORJ/balance \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402_payment_token>\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The x402 challenge returns maxAmountRequired of 20000 base units of USDC (asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) on Base network, equating to $0.02","source_url":"https://lowpaymentfee.com/api/v1/wallet/STORJ/balance"},{"claim":"The provider advertises $0.02/request pricing with no API keys, no rate limits, and instant access","source_url":"https://lowpaymentfee.com"},{"claim":"The provider offers endpoints across data analytics, AI/ML, finance/Web3, and infrastructure categories","source_url":"https://lowpaymentfee.com"},{"claim":"Docs, API, pricing, and README pages render only a 'Connect wallet' prompt","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Check STORJ token wallet balances programmatically","Monitor STORJ holdings from an automated agent or bot","Integrate STORJ balance data into portfolio tracking dashboards"],"bestFor":["Agents needing on-demand STORJ wallet balance lookups","Developers building crypto portfolio tools who want keyless API access","Automated workflows that need pay-per-call crypto data without subscriptions"],"notFor":["Bulk or high-frequency balance polling across many tokens (no documented batch endpoint)","Users who need detailed transaction history or analytics beyond a simple balance check","Anyone requiring well-documented API schemas and response contracts before integration"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:32.314Z"},"updatedAt":"2026-04-23T11:04:02.709Z"}}