{"id":"0e54a06c-7a17-4943-b899-7ec84c2e2753","shortId":"zXVzky","kind":"x402","title":"Real-time XMR (Monero) price data via x402 micropayment on Base network, $0.02 per request.","tagline":"Real-time XMR (Monero) price data via x402 micropayment on Base network, $0.02 per request.","description":"This endpoint returns the current price of XMR (Monero) through a pay-per-call x402 protocol. It is part of a broader suite of APIs hosted at lowpaymentfee.com that cover data analytics, AI/ML inference, finance, crypto, and utility services. Each call costs $0.02 in USDC on the Base network, with no API keys, rate limits, or subscriptions required.\n\nThe endpoint accepts POST requests and returns JSON. Payment is handled via the x402 protocol: callers include an X-PAYMENT header with a signed payment of up to 20,000 base units of USDC (i.e., $0.02) on Base. The payment is sent to the provider's address (0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3) and the response is delivered immediately. The x402 challenge was confirmed live, returning a proper 402 with version 1 challenge metadata.\n\nDocumentation beyond the landing page is sparse — the /docs, /pricing, /api, and /README pages all returned only a \"Connect wallet\" prompt with no further technical detail. There is no OpenAPI spec, no example request/response payloads, and no description of the response schema. The endpoint is clearly live and priced, but the exact shape of the returned price data must be inferred from the endpoint path and the site's general \"Finance & Web3\" category description.","tags":[],"capabilities":["crypto-price-feed","xmr-price","x402-payment","usdc-base-network","pay-per-request","no-api-key","real-time-data"],"categories":["finance","crypto"],"synonyms":["Monero price API","XMR price","crypto price feed","Monero market data","XMR USD price","token price lookup","cryptocurrency price endpoint"],"warnings":["No OpenAPI or schema documentation available — response format is unknown","All doc/pricing/README pages return only 'Connect wallet' with no content","No example responses or field descriptions for the price data returned","No SLA, uptime, or rate-limit guarantees documented"],"endpointUrl":"https://lowpaymentfee.com/api/v1/tokens/XMR/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/XMR/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 via a valid x402 402 challenge with clear pricing ($0.02 USDC on Base). However, there is no OpenAPI spec, no documented request/response schema, no example payloads, and all documentation pages return only a wallet-connect prompt. The listing is functional but severely 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'/docs':170 '/pricing':171 '/readme':174 '0.02':14,30,76,128 '000':122 '0x1a2b13e97f5f837c8f9fa1f95a1484b7c70d85f3':140 '1':159 '20':121 '402':156 'Monero market data' 'Monero price API' 'XMR USD price' 'XMR price' 'accept':94 'address':139 'ai/ml':66 'analyt':65 'api':58,85 'base':12,28,81,123,130 'beyond':163 'broader':55 'call':47,74 'caller':107 'categori':234 'challeng':149,160 'clear':207 'confirm':151 'connect':180 'cost':75 'cover':63 'crypto':69 'crypto price feed' 'crypto-price-feed' 'cryptocurrency price endpoint' 'current':37 'data':7,23,64,219 'deliv':145 'descript':199,235 'detail':187 'document':162 'endpoint':34,93,205,225 'exact':213 'exampl':194 'financ':68,232 'general':231 'handl':102 'header':113 'host':59 'i.e':127 'immedi':146 'includ':108 'infer':67,222 'json':99 'key':86 'land':165 'limit':88 'live':152,208 'lowpaymentfee.com':61 'metadata':161 'micropay':10,26 'monero':5,21,41 'must':220 'network':13,29,82 'no-api-key' 'openapi':191 'page':166,175 'part':52 'path':226 'pay':45 'pay-per-cal':44 'pay-per-request' 'payload':196 'payment':100,112,117,132 'per':15,31,46 'post':95 'price':6,22,38,210,218 'prompt':182 'proper':155 'protocol':49,106 'provid':137 'rate':87 'real':2,18 'real-tim':1,17 'real-time-data' 'request':16,32,96 'request/response':195 'requir':91 'respons':143,202 'return':35,98,153,177,217 'schema':203 'sent':134 'servic':72 'shape':214 'sign':116 'site':229 'spars':168 'spec':192 'subscript':90 'suit':56 'technic':186 'time':3,19 'token price lookup' 'unit':124 'usdc':78,126 'usdc-base-network' 'util':71 'version':158 'via':8,24,103 'wallet':181 'web3':233 'x':111 'x-payment':110 'x402':9,25,48,105,148 'x402-payment' 'xmr':4,20,40 'xmr-price'","prices":[{"id":"8c0e056d-8219-4f8b-8073-f867861cc57b","listingId":"0e54a06c-7a17-4943-b899-7ec84c2e2753","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/XMR/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":"2026-04-18T18:57:21.907Z"}],"sources":[{"listingId":"0e54a06c-7a17-4943-b899-7ec84c2e2753","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/tokens/XMR/price","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:57:21.907Z","lastSeenAt":"2026-04-23T20:33:02.904Z"}],"details":{"listingId":"0e54a06c-7a17-4943-b899-7ec84c2e2753","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/tokens/XMR/price \\\n  -H \"X-PAYMENT: <x402-signed-payment>\" \\\n  -H \"Content-Type: application/json\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Endpoint returns 402 with x402 version 1 challenge advertising USDC on Base network","source_url":"https://lowpaymentfee.com/api/v1/tokens/XMR/price"},{"claim":"Price is $0.02 per request, no API keys, no rate limits","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/tokens/XMR/price"},{"claim":"Site lists Finance & Web3 category with price feeds, exchange rates, token quotes, and gas estimates","source_url":"https://lowpaymentfee.com"}],"useCases":["Fetching the current XMR/Monero price for portfolio tracking or trading bots","Integrating real-time Monero pricing into a DeFi dashboard","Agent-driven crypto price lookups without API key management","On-demand price checks for payment or conversion workflows"],"bestFor":["Agents or apps needing quick, keyless XMR price data","Developers who prefer pay-per-call over subscription pricing","Base network users who already hold USDC"],"notFor":["High-frequency trading requiring sub-second latency guarantees (no SLA documented)","Users who need historical price data or OHLCV candles (only current price implied)","Anyone without USDC on Base network for payment"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:47.042Z"},"updatedAt":"2026-04-23T20:33:02.904Z"}}