{"id":"eba3b6d7-9c60-4d53-92dc-af4a00d76ca6","shortId":"hUDv2h","kind":"x402","title":"Real-time XLM (Stellar Lumens) price data via x402 micropayment on Base network.","tagline":"Real-time XLM (Stellar Lumens) price data via x402 micropayment on Base network.","description":"This endpoint returns the current price of XLM (Stellar Lumens) as a pay-per-call API secured by the x402 protocol. It is part of a broader suite of finance, analytics, AI, and utility APIs hosted at lowpaymentfee.com, all priced at $0.02 per request with no API keys, rate limits, or subscriptions required.\n\nPayment is settled on the Base network using USDC (contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913). The x402 challenge specifies a maxAmountRequired of 20,000 base units, which at 6 decimals for USDC equals $0.02 per call. The endpoint accepts POST requests and returns JSON. No authentication beyond the x402 payment header is needed.\n\nDocumentation on the site is extremely sparse — the docs, pricing, and API 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 402 with a valid x402 challenge), but the exact response format for a successful paid request must be inferred from the endpoint path and the broader site context (crypto token price data).","tags":[],"capabilities":["crypto-price-data","xlm-price","x402-payment","usdc-settlement","base-network","pay-per-call","no-api-key","real-time-pricing"],"categories":["finance","crypto"],"synonyms":["Stellar Lumens price","XLM token price","XLM USD price","crypto price API","Stellar price feed","token price lookup","micropayment API"],"warnings":["No OpenAPI or schema documentation available — response format is unknown","Docs, pricing, and API pages on the site render only 'Connect wallet' with no technical content","No example request or response payloads could be found","Exact data source for XLM price is undocumented"],"endpointUrl":"https://lowpaymentfee.com/api/v1/tokens/XLM/price","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/XLM/price","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.400","qualityRationale":"The endpoint is confirmed live with a valid x402 402 challenge, pricing is clear ($0.02 USDC on Base), and the purpose is inferable from the URL path. However, there is no OpenAPI spec, no documented request/response schema, no example payloads, and the site's docs pages are empty beyond a wallet connect prompt. Significant inference is 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'000':102 '0x833589fcd6edb6e08f4c7c32d4f71b54bda02913':93 '20':101 '402':177 '6':107 'Stellar Lumens price' 'Stellar price feed' 'XLM USD price' 'XLM token price' 'accept':117 'ai':61 'analyt':60 'api':45,64,76,143 'authent':124 'avail':170 'base':13,27,88,103 'base-network' 'beyond':125 'broader':56,202 'call':44,114 'challeng':96,182 'confirm':174 'connect':149 'context':204 'contract':92 'crypto':205 'crypto price API' 'crypto-price-data' 'current':33 'data':8,22,208 'decim':108 'detail':156 'doc':140 'document':132,165 'endpoint':30,116,172,198 'equal':111 'exact':185 'exampl':168 'extrem':137 'financ':59 'format':187 'header':129 'host':65 'infer':195 'json':122 'key':77 'limit':79 'live':175 'lowpaymentfee.com':67 'lumen':6,20,38 'maxamountrequir':99 'micropay':11,25 'micropayment API' 'must':193 'need':131 'network':14,28,89 'no-api-key' 'openapi':160 'page':144 'paid':191 'part':53 'path':199 'pay':42 'pay-per-cal':41 'pay-per-call' 'payload':169 'payment':83,128 'per':43,72,113 'post':118 'price':7,21,34,69,141,207 'prompt':151 'protocol':50 'rate':78 'real':2,16 'real-tim':1,15 'real-time-pricing' 'render':146 'request':73,119,192 'request/response':163 'requir':82 'respons':186 'return':31,121,176 'schema':164 'secur':46 'settl':85 'site':135,203 'spars':138 'spec':161 'specifi':97 'stellar':5,19,37 'subscript':81 'success':190 'suit':57 'technic':155 'time':3,17 'token':206 'token price lookup' 'unit':104 'usdc':91,110 'usdc-settlement' 'use':90 'util':63 'valid':180 'via':9,23 'wallet':150 'x402':10,24,49,95,127,181 'x402-payment' 'xlm':4,18,36 'xlm-price'","prices":[{"id":"6e292013-c43e-4b6d-a646-7f3397b5f1b0","listingId":"eba3b6d7-9c60-4d53-92dc-af4a00d76ca6","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/XLM/price","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:57:12.251Z"}],"sources":[{"listingId":"eba3b6d7-9c60-4d53-92dc-af4a00d76ca6","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/tokens/XLM/price","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:57:12.251Z","lastSeenAt":"2026-04-23T21:32:34.446Z"}],"details":{"listingId":"eba3b6d7-9c60-4d53-92dc-af4a00d76ca6","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/tokens/XLM/price \\\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 x402 challenge with maxAmountRequired of 20000 base units of USDC on Base network","source_url":"https://lowpaymentfee.com/api/v1/tokens/XLM/price"},{"claim":"All APIs on the site 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":"USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/tokens/XLM/price"}],"useCases":["Fetching the current market price of XLM (Stellar Lumens) for trading bots or portfolio trackers","Integrating real-time XLM pricing into a DeFi application or dashboard","Agent-driven crypto price lookups without managing API keys or subscriptions"],"bestFor":["AI agents needing on-demand crypto price data with no signup","Developers who want pay-per-call pricing without rate limits","Quick XLM price checks settled via USDC on Base"],"notFor":["High-frequency trading requiring sub-second latency guarantees (no SLA documented)","Historical price data or OHLCV candle queries (only current price indicated)","Users who cannot transact on the Base L2 network"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:47.492Z"},"updatedAt":"2026-04-23T21:32:34.446Z"}}