{"id":"f3e4498d-d060-4395-bfdd-70c9dda520fc","shortId":"NStGVW","kind":"x402","title":"Crypto token data for ETC via x402 micropayment on Base, $0.02 per request.","tagline":"Crypto token data for ETC via x402 micropayment on Base, $0.02 per request.","description":"This endpoint at lowpaymentfee.com provides token data for Ethereum Classic (ETC) through the x402 payment protocol. It is part of a broader suite of pay-per-call APIs covering data analytics, AI/ML inference, finance, crypto, and utility services — all priced at $0.02 per request and settled in USDC on the Base network.\n\nThe specific endpoint `/api/v1/tokens/ETC` accepts POST requests and returns JSON. Based on the site's Finance & Web3 category and sibling endpoints like `/api/v1/crypto/quotes` and `/api/v1/finance/prices`, this endpoint likely returns token-level data such as price quotes, market data, or metadata for Ethereum Classic. However, no detailed documentation, request schema, or response schema was found — the docs, pricing, and API pages all render only a \"Connect wallet\" prompt with no further content.\n\nPayment is handled via the x402 exact-payment scheme: callers attach an `X-PAYMENT` header with a USDC payment of up to 20,000 base units (i.e., $0.02, since USDC uses 6 decimals) to the payTo address on Base. No API keys or rate limits are advertised. The endpoint returned a proper 402 challenge during probing, confirming it is live.","tags":[],"capabilities":["crypto-token-data","x402-micropayment","usdc-payment","base-network","pay-per-request","no-api-key","json-response"],"categories":["finance","crypto"],"synonyms":["ETC token price","Ethereum Classic data","crypto token API","token quotes","crypto market data","x402 crypto API","micropayment API"],"warnings":["No documentation available — docs, pricing, and API pages only show 'Connect wallet'","No request or response schema provided; actual data returned is unknown","No OpenAPI or ai-plugin manifest found","Endpoint purpose inferred solely from URL path and sibling endpoint names"],"endpointUrl":"https://lowpaymentfee.com/api/v1/tokens/ETC","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/ETC","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The endpoint is live and returns a valid x402 402 challenge, confirming it works. However, there is no OpenAPI schema, no request/response examples, and the docs/pricing/API pages are empty beyond a wallet connect prompt. The actual data returned by this endpoint is unknown — only inferred from sibling endpoints and the URL path. Effectively a stub 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'/api/v1/finance/prices':104 '/api/v1/tokens/etc':83 '0.02':11,24,69,181 '000':177 '20':176 '402':206 '6':185 'ETC token price' 'Ethereum Classic data' 'accept':84 'address':190 'advertis':200 'ai/ml':59 'analyt':58 'api':55,139,194 'attach':163 'base':10,23,78,90,178,192 'base-network' 'broader':48 'call':54 'caller':162 'categori':97 'challeng':207 'classic':36,123 'confirm':210 'connect':145 'content':151 'cover':56 'crypto':1,14,62 'crypto market data' 'crypto token API' 'crypto-token-data' 'data':3,16,33,57,112,118 'decim':186 'detail':126 'doc':136 'document':127 'endpoint':28,82,100,106,202 'etc':5,18,37 'ethereum':35,122 'exact':159 'exact-pay':158 'financ':61,95 'found':134 'handl':154 'header':168 'howev':124 'i.e':180 'infer':60 'json':89 'json-response' 'key':195 'level':111 'like':101,107 'limit':198 'live':213 'lowpaymentfee.com':30 'market':117 'metadata':120 'micropay':8,21 'micropayment API' 'network':79 'no-api-key' 'page':140 'part':45 'pay':52 'pay-per-cal':51 'pay-per-request' 'payment':41,152,160,167,172 'payto':189 'per':12,25,53,70 'post':85 'price':67,115,137 'probe':209 'prompt':147 'proper':205 'protocol':42 'provid':31 'quot':116 'rate':197 'render':142 'request':13,26,71,86,128 'respons':131 'return':88,108,203 'schema':129,132 'scheme':161 'servic':65 'settl':73 'sibl':99 'sinc':182 'site':93 'specif':81 'suit':49 'token':2,15,32,110 'token quotes' 'token-level':109 'unit':179 'usdc':75,171,183 'usdc-payment' 'use':184 'util':64 'via':6,19,155 'wallet':146 'web3':96 'x':166 'x-payment':165 'x402':7,20,40,157 'x402 crypto API' 'x402-micropayment'","prices":[{"id":"e9f4f9ad-eed4-444a-acde-a4dfb8dba5af","listingId":"f3e4498d-d060-4395-bfdd-70c9dda520fc","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/ETC","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:37:31.895Z"}],"sources":[{"listingId":"f3e4498d-d060-4395-bfdd-70c9dda520fc","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/tokens/ETC","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:37:31.895Z","lastSeenAt":"2026-04-24T08:02:35.922Z"}],"details":{"listingId":"f3e4498d-d060-4395-bfdd-70c9dda520fc","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/tokens/ETC \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-header>\"","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 in USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/tokens/ETC"},{"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 Finance & Web3 endpoints including Token Quotes, Price Feeds, Exchange Rates, and Gas Estimates","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset address is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/tokens/ETC"}],"useCases":["Fetching current Ethereum Classic token data or price quotes programmatically","Integrating ETC market data into trading bots or dashboards without API key management","Agent-driven crypto data retrieval with per-call micropayments"],"bestFor":["Developers needing low-friction, keyless access to ETC token data","AI agents that can settle x402 payments on Base","Applications requiring pay-as-you-go crypto data without subscriptions"],"notFor":["Users needing bulk historical token data at high throughput (no documented batch endpoints)","Anyone who cannot settle USDC payments on the Base network","Use cases requiring detailed documentation or guaranteed SLAs"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:44.71Z"},"updatedAt":"2026-04-24T08:02:35.922Z"}}