{"id":"f5959a39-7675-4d12-91a9-8cc29f3c18ff","shortId":"HwXPmu","kind":"x402","title":"Pay-per-call BCH token data via x402 on Base, settled in USDC at $0.02/request.","tagline":"Pay-per-call BCH token data via x402 on Base, settled in USDC at $0.02/request.","description":"This endpoint at lowpaymentfee.com provides BCH (Bitcoin Cash) token information through a pay-per-request x402 protocol. The specific endpoint `/api/v1/tokens/BCH` is part of a broader platform offering data & analytics, AI/ML inference, finance/Web3 data, and infrastructure utility APIs — all priced uniformly at $0.02 per request and settled in USDC on the Base network.\n\nPayment is handled via the x402 exact-payment scheme: callers attach an X-PAYMENT header with a signed USDC payment of up to 20,000 base units (i.e., $0.02, since USDC uses 6 decimals) to the payTo address `0x1A2B…85F3`. No API keys, rate limits, or upfront commitments are required — each request is independently paid and authenticated on-chain.\n\nDocumentation on the site is extremely sparse. The docs, API, pricing, and README pages all render only a \"Connect wallet\" prompt with no further technical detail. There is no OpenAPI spec, no request/response schema documentation, and no example payloads available. The endpoint is confirmed live (returns a proper 402 challenge), but the actual response format for a paid request to `/api/v1/tokens/BCH` must be inferred — it likely returns JSON with BCH token data such as price, market cap, or metadata, but this is unconfirmed.","tags":[],"capabilities":["token-data","bch-info","x402-payment","usdc-settlement","base-network","pay-per-request","no-api-key","crypto-market-data"],"categories":["finance","crypto"],"synonyms":["bitcoin cash token API","BCH price API","crypto token data","x402 crypto API","pay-per-call token info","USDC micropayment API","lowpaymentfee"],"warnings":["No API documentation available — docs, pricing, and README pages all show only 'Connect wallet'","No OpenAPI spec or request/response schema provided","Actual response payload for /api/v1/tokens/BCH is unknown — token data content is inferred","The platform lists many endpoints across categories but none have documented schemas"],"endpointUrl":"https://lowpaymentfee.com/api/v1/tokens/BCH","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/BCH","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 402 challenge, confirming it works. However, there is zero documentation on request parameters, response schema, or what data is actually returned. The docs/pricing/README pages are all blank beyond a wallet-connect prompt. This is effectively a stub listing with only the payment challenge as 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'/request':17,34 '0.02':16,33,78,119 '000':115 '0x1a2b':129 '20':114 '402':199 '6':123 '85f3':130 'BCH price API' 'USDC micropayment API' 'actual':203 'address':128 'ai/ml':66 'analyt':65 'api':73,132,160 'attach':100 'authent':147 'avail':190 'base':11,28,87,116 'base-network' 'bch':5,22,40,220 'bch-info' 'bitcoin':41 'bitcoin cash token API' 'broader':61 'call':4,21 'caller':99 'cap':227 'cash':42 'chain':150 'challeng':200 'commit':138 'confirm':194 'connect':169 'crypto token data' 'crypto-market-data' 'data':7,24,64,69,222 'decim':124 'detail':176 'doc':159 'document':151,185 'endpoint':36,55,192 'exact':96 'exact-pay':95 'exampl':188 'extrem':156 'finance/web3':68 'format':205 'handl':91 'header':105 'i.e':118 'independ':144 'infer':67,214 'inform':44 'infrastructur':71 'json':218 'key':133 'like':216 'limit':135 'live':195 'lowpaymentfee' 'lowpaymentfee.com':38 'market':226 'metadata':229 'must':212 'network':88 'no-api-key' 'offer':63 'on-chain':148 'openapi':180 'page':164 'paid':145,208 'part':58 'pay':2,19,48 'pay-per-cal':1,18 'pay-per-call token info' 'pay-per-request':47 'payload':189 'payment':89,97,104,110 'payto':127 'per':3,20,49,79 'platform':62 'price':75,161,225 'prompt':171 'proper':198 'protocol':52 'provid':39 'rate':134 'readm':163 'render':166 'request':50,80,142,209 'request/response':183 'requir':140 'respons':204 'return':196,217 'schema':184 'scheme':98 'settl':12,29,82 'sign':108 'sinc':120 'site':154 'spars':157 'spec':181 'specif':54 'technic':175 'token':6,23,43,221 'token-data' 'unconfirm':233 'uniform':76 'unit':117 'upfront':137 'usdc':14,31,84,109,121 'usdc-settlement' 'use':122 'util':72 'via':8,25,92 'wallet':170 'x':103 'x-payment':102 'x402':9,26,51,94 'x402 crypto API' 'x402-payment'","prices":[{"id":"7fb2997d-cecb-475f-a720-0a234b413a76","listingId":"f5959a39-7675-4d12-91a9-8cc29f3c18ff","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/BCH","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:36:23.953Z"}],"sources":[{"listingId":"f5959a39-7675-4d12-91a9-8cc29f3c18ff","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/tokens/BCH","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:36:23.953Z","lastSeenAt":"2026-04-24T09:03:03.657Z"}],"details":{"listingId":"f5959a39-7675-4d12-91a9-8cc29f3c18ff","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/tokens/BCH \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <signed-x402-payment-header>\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Endpoint returns a valid x402 402 challenge with maxAmountRequired of 20000 base units in USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/tokens/BCH"},{"claim":"All APIs 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":"USDC asset contract on Base: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/tokens/BCH"}],"useCases":["Fetching BCH token data (price, metadata) on demand without API key registration","Integrating pay-per-call crypto data into autonomous agents or bots","Building dashboards that pull token information with per-request USDC micropayments"],"bestFor":["Agents or apps needing BCH token data without subscription commitments","Developers wanting keyless, on-chain-settled API access","Low-volume or sporadic crypto data lookups at $0.02 per call"],"notFor":["High-frequency trading requiring sub-second latency and bulk pricing","Users who need comprehensive historical BCH data or OHLCV candles (not documented)","Anyone without a Base-network USDC wallet"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:47.909Z"},"updatedAt":"2026-04-24T09:03:03.657Z"}}