{"id":"7e8314c3-964e-4204-9452-2358c3660534","shortId":"jHwLvF","kind":"x402","title":"BCH liquidity data via pay-per-call x402 on Base (USDC, $0.02/request)","tagline":"BCH liquidity data via pay-per-call x402 on Base (USDC, $0.02/request)","description":"This endpoint provides BCH (Bitcoin Cash) DeFi liquidity data through a pay-per-request x402 payment model. It is hosted on lowpaymentfee.com, a platform offering a broad catalog of data, AI, finance, and utility APIs — all gated behind x402 micropayments settled in USDC on the Base network.\n\nThe specific endpoint `/api/v1/defi/BCH/liquidity` accepts POST requests and returns JSON. The x402 challenge advertises a maximum cost of 20,000 base units of USDC (0x8335…2913 on Base), which equals $0.02 per request (USDC uses 6 decimals). The platform advertises uniform $0.02 pricing across all endpoints, no API keys, no rate limits, and instant access.\n\nDocumentation is extremely sparse. The docs, API, pricing, and README pages all render only a \"Connect wallet\" prompt with no further content. There is no OpenAPI schema, no request/response examples, and no description of what fields the liquidity response contains. The endpoint is confirmed live (returns a proper 402 challenge), but the actual data schema and data sources are unknown. This endpoint is part of a larger suite under the \"Finance & Web3\" category on the site, alongside price feeds, exchange rates, token quotes, and gas estimates.","tags":[],"capabilities":["defi-liquidity-data","bch-bitcoin-cash","x402-micropayment","usdc-base-network","pay-per-request","json-api"],"categories":["defi","finance"],"synonyms":["BCH liquidity","Bitcoin Cash DeFi","BCH pool data","crypto liquidity API","DeFi market data","BCH trading liquidity"],"warnings":["No API documentation available — docs, pricing, and README pages all show only 'Connect wallet'","No request or response schema provided; the structure of the liquidity data is unknown","No OpenAPI or ai-plugin manifest found","This specific endpoint (/api/v1/defi/BCH/liquidity) is not listed on the site's own catalog page, though similar finance endpoints are"],"endpointUrl":"https://lowpaymentfee.com/api/v1/defi/BCH/liquidity","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/defi/BCH/liquidity","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 with clear pricing. However, there is no OpenAPI schema, no request/response examples, and all documentation pages are empty beyond a wallet-connect prompt. The actual data returned is completely unknown, making this effectively a stub 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'/request':14,28 '0.02':13,27,107,118 '000':96 '0x8335':101 '20':95 '2913':102 '402':180 '6':112 'BCH liquidity' 'BCH pool data' 'BCH trading liquidity' 'Bitcoin Cash DeFi' 'DeFi market data' 'accept':81 'access':131 'across':120 'actual':184 'advertis':90,116 'ai':60 'alongsid':208 'api':64,124,138 'base':11,25,75,97,104 'bch':1,15,32 'bch-bitcoin-cash' 'behind':67 'bitcoin':33 'broad':56 'call':8,22 'cash':34 'catalog':57 'categori':204 'challeng':89,181 'confirm':175 'connect':147 'contain':171 'content':153 'cost':93 'crypto liquidity API' 'data':3,17,37,59,185,188 'decim':113 'defi':35 'defi-liquidity-data' 'descript':164 'doc':137 'document':132 'endpoint':30,79,122,173,193 'equal':106 'estim':217 'exampl':161 'exchang':211 'extrem':134 'feed':210 'field':167 'financ':61,202 'gas':216 'gate':66 'host':49 'instant':130 'json':86 'json-api' 'key':125 'larger':198 'limit':128 'liquid':2,16,36,169 'live':176 'lowpaymentfee.com':51 'maximum':92 'micropay':69 'model':46 'network':76 'offer':54 'openapi':157 'page':142 'part':195 'pay':6,20,41 'pay-per-cal':5,19 'pay-per-request':40 'payment':45 'per':7,21,42,108 'platform':53,115 'post':82 'price':119,139,209 'prompt':149 'proper':179 'provid':31 'quot':214 'rate':127,212 'readm':141 'render':144 'request':43,83,109 'request/response':160 'respons':170 'return':85,177 'schema':158,186 'settl':70 'site':207 'sourc':189 'spars':135 'specif':78 'suit':199 'token':213 'uniform':117 'unit':98 'unknown':191 'usdc':12,26,72,100,110 'usdc-base-network' 'use':111 'util':63 'via':4,18 'wallet':148 'web3':203 'x402':9,23,44,68,88 'x402-micropayment'","prices":[{"id":"f26e80ed-49a1-4c24-80a6-ff2982085add","listingId":"7e8314c3-964e-4204-9452-2358c3660534","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/defi/BCH/liquidity","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:32:32.718Z"}],"sources":[{"listingId":"7e8314c3-964e-4204-9452-2358c3660534","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/defi/BCH/liquidity","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:32:32.718Z","lastSeenAt":"2026-04-23T02:00:20.037Z"}],"details":{"listingId":"7e8314c3-964e-4204-9452-2358c3660534","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/defi/BCH/liquidity \\\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 of USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/defi/BCH/liquidity"},{"claim":"The USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/defi/BCH/liquidity"},{"claim":"The platform advertises $0.02 per request, no API keys, no rate limits, instant access, Base network","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":["Querying real-time BCH liquidity across DeFi protocols","Monitoring BCH DeFi pool depth for trading decisions","Integrating BCH liquidity metrics into dashboards or bots","Agent-driven DeFi analysis workflows that need on-demand liquidity snapshots"],"bestFor":["Developers needing low-cost, keyless BCH liquidity data","AI agents that can settle x402 micropayments on Base","Projects requiring pay-as-you-go DeFi data without subscriptions"],"notFor":["Users who need detailed API documentation or response schemas before integrating","High-frequency consumers who need sub-cent pricing or bulk discounts","Anyone needing liquidity data for tokens other than BCH from this specific endpoint"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:59.391Z"},"updatedAt":"2026-04-23T02:00:20.037Z"}}