{"id":"4700a2bd-7f45-4344-9260-957920905e5f","shortId":"Pcp2JL","kind":"x402","title":"Pay-per-call HBAR token data via x402 on Base, settled in USDC at $0.02/request.","tagline":"Pay-per-call HBAR token data via x402 on Base, settled in USDC at $0.02/request.","description":"This endpoint at lowpaymentfee.com provides token data for HBAR (Hedera) through an x402-gated API. The specific endpoint `/api/v1/tokens/HBAR` sits within a broader suite of finance and crypto endpoints offered by the same provider. Payment is handled via the x402 protocol on the Base network using USDC, with each request costing $0.02 (20,000 base units of USDC with 6 decimals). No API keys or accounts are required — callers simply attach an X-PAYMENT header with a valid x402 payment proof.\n\nThe provider's landing page lists a wide catalog of endpoints spanning data analytics, AI/ML inference, finance/Web3, and infrastructure utilities, all uniformly priced at $0.02 per request. However, documentation is extremely thin: 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 on POST), but the actual response format and accepted input parameters for the HBAR token endpoint are unknown.\n\nBecause of the lack of documentation, callers should expect to experiment with POST request bodies to discover the expected input format. The x402 challenge confirms the endpoint accepts POST requests and returns application/json.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","token-data","hbar","pay-per-call","no-api-key","crypto-market-data"],"categories":["finance","crypto"],"synonyms":["HBAR price","Hedera token data","crypto token API","HBAR market data","x402 crypto API","pay-per-request token endpoint"],"warnings":["No API documentation available — /docs, /pricing, /api, and /README pages all show only 'Connect wallet' with no content","No OpenAPI or schema definition found; request and response formats are unknown","The provider lists many endpoints across diverse categories (AI, analytics, finance, utilities) all at the same price, which may indicate a template or placeholder site"],"endpointUrl":"https://lowpaymentfee.com/api/v1/tokens/HBAR","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/HBAR","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The endpoint is confirmed live with a valid x402 402 challenge, and pricing is clear ($0.02/request in USDC on Base). However, there is no documentation, no OpenAPI spec, no request/response examples, and the docs pages are empty. The actual functionality of the HBAR endpoint is entirely 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'/api/v1/tokens/hbar':54 '/docs':151 '/pricing':153 '/readme':155 '/request':17,34 '0.02':16,33,87,142 '000':89 '20':88 '402':191 '6':95 'HBAR market data' 'HBAR price' 'Hedera token data' 'accept':201,238 'account':101 'actual':197 'ai/ml':132 'analyt':131 'api':50,98 'application/json':243 'attach':106 'avail':182 'base':11,28,79,90 'base-network' 'bodi':225 'broader':58 'call':4,21 'caller':104,217 'catalog':126 'challeng':192,234 'confirm':186,235 'connect':161 'cost':86 'crypto':63 'crypto token API' 'crypto-market-data' 'data':7,24,41,130 'decim':96 'detail':168 'discov':227 'document':146,177,216 'endpoint':36,53,64,128,184,208,237 'exampl':180 'expect':219,229 'experi':221 'extrem':148 'financ':61 'finance/web3':134 'format':199,231 'gate':49 'handl':72 'hbar':5,22,43,206 'header':111 'hedera':44 'howev':145 'infer':133 'infrastructur':136 'input':202,230 'key':99 'lack':214 'land':121 'list':123 'live':187 'lowpaymentfee.com':38 'network':80 'no-api-key' 'offer':65 'openapi':172 'page':122,156 'paramet':203 'pay':2,19 'pay-per-cal':1,18 'pay-per-call' 'pay-per-request token endpoint' 'payload':181 'payment':70,110,116 'per':3,20,143 'post':194,223,239 'price':140 'prompt':163 'proof':117 'proper':190 'protocol':76 'provid':39,69,119 'render':158 'request':85,144,224,240 'request/response':175 'requir':103 'respons':198 'return':188,242 'schema':176 'settl':12,29 'simpli':105 'sit':55 'span':129 'spec':173 'specif':52 'suit':59 'technic':167 'thin':149 'token':6,23,40,207 'token-data' 'uniform':139 'unit':91 'unknown':210 'usdc':14,31,82,93 'usdc-settlement' 'use':81 'util':137 'valid':114 'via':8,25,73 'wallet':162 'wide':125 'within':56 'x':109 'x-payment':108 'x402':9,26,48,75,115,233 'x402 crypto API' 'x402-gated':47 'x402-payment'","prices":[{"id":"546158c2-c7a8-4b04-a8a0-24e9355032f2","listingId":"4700a2bd-7f45-4344-9260-957920905e5f","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/HBAR","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:38:59.752Z"}],"sources":[{"listingId":"4700a2bd-7f45-4344-9260-957920905e5f","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/tokens/HBAR","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:38:59.752Z","lastSeenAt":"2026-04-24T04:03:17.401Z"}],"details":{"listingId":"4700a2bd-7f45-4344-9260-957920905e5f","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/tokens/HBAR \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-proof>\"","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 on POST with USDC on Base network","source_url":"https://lowpaymentfee.com/api/v1/tokens/HBAR"},{"claim":"Price is $0.02 per request (maxAmountRequired 20000 base units of USDC, 6 decimals)","source_url":"https://lowpaymentfee.com/api/v1/tokens/HBAR"},{"claim":"USDC asset contract on Base: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/tokens/HBAR"},{"claim":"Provider advertises no API keys, no rate limits, instant access, $0.02/request uniform pricing","source_url":"https://lowpaymentfee.com"},{"claim":"Documentation pages (/docs, /api, /pricing, /README) contain only 'Connect wallet' with no technical content","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Fetching HBAR token information or price data on demand","Integrating Hedera token data into trading bots or dashboards without managing API keys","Agent-driven crypto data retrieval with automatic micropayment settlement"],"bestFor":["Developers wanting keyless, pay-per-call access to HBAR token data","AI agents that can settle x402 payments on Base","Projects needing low-friction crypto data without subscription commitments"],"notFor":["Users needing comprehensive API documentation or OpenAPI specs before integration","High-volume consumers who would benefit from bulk pricing or subscriptions","Anyone requiring data for tokens other than HBAR from this specific endpoint"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:40.122Z"},"updatedAt":"2026-04-24T04:03:17.401Z"}}