{"id":"bf74bb41-63aa-46c3-ba6a-f8809bcdb8ea","shortId":"xcaqD6","kind":"x402","title":"Token data for BLUR via x402 micropayment on Base — $0.02 per request, no API key needed.","tagline":"Token data for BLUR via x402 micropayment on Base — $0.02 per request, no API key needed.","description":"This endpoint at lowpaymentfee.com provides token-level data for BLUR (and likely other tokens at similar paths) behind an x402 paywall on the Base network. Each request costs $0.02 in USDC, settled on-chain with no API keys, rate limits, or subscriptions required.\n\nThe endpoint is part of a broader platform (lowpaymentfee.com) that offers dozens of pay-per-call APIs spanning data analytics, AI/ML inference, finance/Web3 market data, and utility services — all at the same $0.02/request price point. The specific `/api/v1/tokens/BLUR` path falls under the Finance & Web3 category and likely returns token quote or market data for the BLUR token.\n\nDocumentation is extremely sparse: the docs, pricing, API, and README pages all render only a \"Connect wallet\" prompt with no further content. There is no OpenAPI spec, no request/response schema, and no usage examples available from the crawl. The x402 challenge confirms the endpoint is live and accepting POST requests, paying to address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3` in USDC (`0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913`) on Base. The maxAmountRequired of 20000 base units (6 decimals) equals $0.02.","tags":[],"capabilities":["x402-payment","token-data","crypto-market-data","per-request-pricing","base-network","usdc-settlement","no-api-key"],"categories":["crypto","finance"],"synonyms":["BLUR token price","BLUR token data","crypto token API","x402 token endpoint","pay-per-call crypto API","BLUR market data","micropayment API"],"warnings":["No documentation available — docs, pricing, API, and README pages all show only 'Connect wallet'","No OpenAPI or output schema provided; response format is unknown","No request body schema documented; unclear what parameters (if any) the POST accepts","The specific data returned for /api/v1/tokens/BLUR is not described anywhere in the crawl"],"endpointUrl":"https://lowpaymentfee.com/api/v1/tokens/BLUR","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/BLUR","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 via a valid x402 402 challenge with clear pricing ($0.02 USDC on Base). However, there is no OpenAPI spec, no request/response schema, no documentation beyond a wallet-connect prompt, and no examples. The actual data returned is entirely unknown, making this effectively a stub 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'/request':112 '0.02':10,26,62,111,205 '0x1a2b13e97f5f837c8f9fa1f95a1484b7c70d85f3':190 '0x833589fcd6edb6e08f4c7c32d4f71b54bda02913':193 '20000':199 '6':202 'BLUR market data' 'BLUR token data' 'BLUR token price' 'accept':184 'address':189 'ai/ml':99 'analyt':98 'api':14,30,71,95,144 'avail':171 'base':9,25,57,195,200 'base-network' 'behind':51 'blur':4,20,43,135 'broader':84 'call':94 'categori':124 'chain':68 'challeng':177 'confirm':178 'connect':152 'content':158 'cost':61 'crawl':174 'crypto token API' 'crypto-market-data' 'data':2,18,41,97,103,132 'decim':203 'doc':142 'document':137 'dozen':89 'endpoint':34,79,180 'equal':204 'exampl':170 'extrem':139 'fall':119 'financ':122 'finance/web3':101 'infer':100 'key':15,31,72 'level':40 'like':45,126 'limit':74 'live':182 'lowpaymentfee.com':36,86 'market':102,131 'maxamountrequir':197 'micropay':7,23 'micropayment API' 'need':16,32 'network':58 'no-api-key' 'offer':88 'on-chain':66 'openapi':162 'page':147 'part':81 'path':50,118 'pay':92,187 'pay-per-cal':91 'pay-per-call crypto API' 'paywal':54 'per':11,27,93 'per-request-pricing' 'platform':85 'point':114 'post':185 'price':113,143 'prompt':154 'provid':37 'quot':129 'rate':73 'readm':146 'render':149 'request':12,28,60,186 'request/response':165 'requir':77 'return':127 'schema':166 'servic':106 'settl':65 'similar':49 'span':96 'spars':140 'spec':163 'specif':116 'subscript':76 'token':1,17,39,47,128,136 'token-data' 'token-level':38 'unit':201 'usag':169 'usdc':64,192 'usdc-settlement' 'util':105 'via':5,21 'wallet':153 'web3':123 'x402':6,22,53,176 'x402 token endpoint' 'x402-payment'","prices":[{"id":"8172b8b1-b42a-414b-ae87-97bb7ce43d34","listingId":"bf74bb41-63aa-46c3-ba6a-f8809bcdb8ea","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/BLUR","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:33:14.475Z"}],"sources":[{"listingId":"bf74bb41-63aa-46c3-ba6a-f8809bcdb8ea","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/tokens/BLUR","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:33:14.475Z","lastSeenAt":"2026-04-23T20:01:25.657Z"}],"details":{"listingId":"bf74bb41-63aa-46c3-ba6a-f8809bcdb8ea","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/tokens/BLUR \\\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":"Endpoint returns 402 with x402 challenge confirming it is live","source_url":"https://lowpaymentfee.com/api/v1/tokens/BLUR"},{"claim":"Price is $0.02 per request (maxAmountRequired 20000 base units, USDC 6 decimals)","source_url":"https://lowpaymentfee.com"},{"claim":"Payment is in USDC on Base network to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3","source_url":"https://lowpaymentfee.com/api/v1/tokens/BLUR"},{"claim":"Platform advertises no API keys, no rate limits, instant access","source_url":"https://lowpaymentfee.com"}],"useCases":["Fetching current BLUR token data or quotes without managing API keys","Integrating real-time token information into trading bots or dashboards","Agent-driven crypto market data retrieval with on-chain micropayments","One-off token lookups where subscription APIs are overkill"],"bestFor":["Developers or agents needing quick, keyless access to BLUR token data","Low-volume or sporadic crypto data queries paid per call","x402-compatible agents that can settle USDC on Base"],"notFor":["High-frequency trading requiring sub-second latency guarantees (no SLA documented)","Users needing comprehensive historical token data or OHLCV candles (no schema to confirm availability)","Anyone without a Base-compatible USDC wallet"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-27T19:17:28.289Z"},"updatedAt":"2026-04-23T20:01:25.657Z"}}