{"id":"d9362843-ab28-4f95-ab55-ea8f71907211","shortId":"EnS7dv","kind":"x402","title":"Pay-per-call premium API access on Base via x402 — $0.02/request in USDC.","tagline":"Pay-per-call premium API access on Base via x402 — $0.02/request in USDC.","description":"This endpoint at lowpaymentfee.com provides \"Premium API Access\" via the x402 payment protocol. The specific path `/api/v1/wire/70` is one of many endpoints offered by the provider, which hosts a broad catalog spanning data & analytics, AI & machine learning, finance & Web3, and infrastructure utilities — all priced at $0.02 per request.\n\nPayment is settled on the Base network using USDC (contract 0x8335…2913) through the x402 exact-payment scheme. The endpoint accepts HTTP POST requests and returns application/json responses. There are no API keys required, no rate limits advertised, and no minimum commitments — callers simply attach an X-PAYMENT header with a valid x402 payment proof for each request.\n\nThe specific functionality behind `/api/v1/wire/70` is not documented beyond the label \"Premium API Access.\" The provider's landing page lists sibling endpoints for metrics, reports, data export, insights, sentiment analysis, text summarization, classification, embeddings, price feeds, exchange rates, token quotes, gas estimates, geocoding, validation, conversion, and generation — but no detailed documentation, request/response schemas, or usage examples are available for any of them. The docs, pricing, API, and README pages all resolve to a minimal \"Connect wallet\" prompt with no additional content.","tags":[],"capabilities":["x402-payment","usdc-base","pay-per-request","http-post","json-response"],"categories":["api-gateway","infrastructure"],"synonyms":["x402 API","pay-per-call API","USDC micropayment API","Base network API","lowpaymentfee","premium API access","crypto-paid API"],"warnings":["No documentation available — docs, pricing, API, and README pages all show only 'Connect wallet' with no content.","The specific functionality of /api/v1/wire/70 is unknown; 'Premium API Access' is the only description provided.","No request or response schema is documented for any endpoint.","Cannot verify what data or service is actually returned upon successful payment."],"endpointUrl":"https://lowpaymentfee.com/api/v1/wire/70","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/wire/70","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.250","qualityRationale":"The endpoint is live (402 challenge confirmed) and pricing is clear ($0.02 per request in USDC on Base). However, there is no documentation, no request/response schema, no examples, and the specific functionality of /api/v1/wire/70 is entirely undescribed beyond the generic label 'Premium API Access.' The docs pages are empty 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'/request':13,28 '0.02':12,27,76 '0x8335':89 '2913':90 'Base network API' 'USDC micropayment API' 'accept':100 'access':7,22,38,152 'addit':218 'advertis':117 'ai':65 'analysi':168 'analyt':64 'api':6,21,37,111,151,204 'application/json':106 'attach':124 'avail':196 'base':9,24,84 'behind':142 'beyond':147 'broad':60 'call':4,19 'caller':122 'catalog':61 'classif':171 'commit':121 'connect':213 'content':219 'contract':88 'convers':183 'crypto-paid API' 'data':63,164 'detail':188 'doc':202 'document':146,189 'embed':172 'endpoint':32,52,99,160 'estim':180 'exact':95 'exact-pay':94 'exampl':194 'exchang':175 'export':165 'feed':174 'financ':68 'function':141 'gas':179 'generat':185 'geocod':181 'header':129 'host':58 'http':101 'http-post' 'infrastructur':71 'insight':166 'json-response' 'key':112 'label':149 'land':156 'learn':67 'limit':116 'list':158 'lowpaymentfee' 'lowpaymentfee.com':34 'machin':66 'mani':51 'metric':162 'minim':212 'minimum':120 'network':85 'offer':53 'one':49 'page':157,207 'path':46 'pay':2,17 'pay-per-cal':1,16 'pay-per-call API' 'pay-per-request' 'payment':42,79,96,128,134 'per':3,18,77 'post':102 'premium':5,20,36,150 'premium API access' 'price':74,173,203 'prompt':215 'proof':135 'protocol':43 'provid':35,56,154 'quot':178 'rate':115,176 'readm':206 'report':163 'request':78,103,138 'request/response':190 'requir':113 'resolv':209 'respons':107 'return':105 'schema':191 'scheme':97 'sentiment':167 'settl':81 'sibl':159 'simpli':123 'span':62 'specif':45,140 'summar':170 'text':169 'token':177 'usag':193 'usdc':15,30,87 'usdc-base' 'use':86 'util':72 'valid':132,182 'via':10,25,39 'wallet':214 'web3':69 'x':127 'x-payment':126 'x402':11,26,41,93,133 'x402 API' 'x402-payment'","prices":[{"id":"beae7848-5e8a-448f-8c2a-d0de0ad863a9","listingId":"d9362843-ab28-4f95-ab55-ea8f71907211","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/wire/70","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T19:29:10.738Z"}],"sources":[{"listingId":"d9362843-ab28-4f95-ab55-ea8f71907211","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/wire/70","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T19:29:10.738Z","lastSeenAt":"2026-04-22T08:31:54.757Z"}],"details":{"listingId":"d9362843-ab28-4f95-ab55-ea8f71907211","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/wire/70 \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-proof>\" \\\n  -d '{}'","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The endpoint returns a 402 x402 challenge with maxAmountRequired of 20000 base units of USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/wire/70"},{"claim":"USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/wire/70"},{"claim":"All listed endpoints 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 provider offers endpoints across Data & Analytics, AI & ML, Finance & Web3, and Infrastructure categories","source_url":"https://lowpaymentfee.com"}],"useCases":["Accessing premium API functionality with per-request USDC micropayments on Base","Agent-driven workflows that need keyless, pay-as-you-go API access","Programmatic access without subscription or API key management"],"bestFor":["Developers wanting zero-commitment, pay-per-use API access settled in USDC on Base","AI agents that can autonomously pay for API calls via x402","Users who prefer crypto-native micropayments over traditional billing"],"notFor":["Users who need detailed API documentation or well-defined request/response schemas before integrating","Anyone requiring fiat-only payment methods","High-volume consumers who would benefit from bulk pricing or subscriptions"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:30.003Z"},"updatedAt":"2026-04-22T08:31:54.757Z"}}