{"id":"a34fb5bb-374a-4306-8049-d37e8c6de03e","shortId":"knKWk9","kind":"x402","title":"Get the current price of COMP token via a pay-per-call x402 endpoint on Base.","tagline":"Get the current price of COMP token via a pay-per-call x402 endpoint on Base.","description":"This endpoint returns the current price of the COMP (Compound) token. It is part of the lowpaymentfee.com platform, which offers a variety of data, AI, finance, and utility APIs all accessible via the x402 payment protocol on the Base network. Each request costs $0.02 in USDC — no API keys, no rate limits, and no subscriptions required.\n\nThe specific endpoint at `/api/v1/tokens/COMP/price` accepts POST requests and returns JSON. Payment is handled inline via the x402 protocol: callers attach an `X-PAYMENT` header containing a signed USDC payment on Base (contract `0x8335...2913`). The x402 challenge confirms the endpoint is live, with a max amount of 20,000 base units (i.e., $0.02 USDC at 6 decimals).\n\nThe broader lowpaymentfee.com platform also exposes endpoints for analytics, AI inference (sentiment analysis, summarization, classification, embeddings), exchange rates, gas estimates, geocoding, and more — all at the same $0.02/request price point. Documentation pages exist but appear to require a wallet connection to view, so detailed request/response schemas are not publicly available.","tags":[],"capabilities":["token-price","crypto-market-data","x402-payment","base-network","usdc-settlement","pay-per-call","no-api-key"],"categories":["finance","crypto"],"synonyms":["COMP price API","Compound token price","crypto price feed","token price lookup","x402 crypto API","lowpaymentfee"],"warnings":["No public API documentation available — docs, pricing, and README pages all require wallet connection to view.","Request body schema and response schema are undocumented; callers must discover the format experimentally.","The endpoint path suggests token-specific pricing but the broader /api/v1/tokens/{symbol}/price pattern is not confirmed."],"endpointUrl":"https://lowpaymentfee.com/api/v1/tokens/COMP/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/COMP/price","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.450","qualityRationale":"The x402 challenge is live and confirms pricing and payment details, but there is no OpenAPI schema, no documented request/response format, and the docs pages require wallet connection. The endpoint's actual response shape must be 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'/request':178 '0.02':78,145,177 '000':141 '0x8335':125 '20':140 '2913':126 '6':148 'COMP price API' 'Compound token price' 'accept':96 'access':65 'ai':59,159 'also':154 'amount':138 'analysi':162 'analyt':158 'api':63,82 'appear':185 'attach':111 'avail':200 'base':17,34,73,123,142 'base-network' 'broader':151 'call':13,30 'caller':110 'challeng':129 'classif':164 'comp':6,23,43 'compound':44 'confirm':130 'connect':190 'contain':117 'contract':124 'cost':77 'crypto price feed' 'crypto-market-data' 'current':3,20,39 'data':58 'decim':149 'detail':194 'document':181 'embed':165 'endpoint':15,32,36,93,132,156 'estim':169 'exchang':166 'exist':183 'expos':155 'financ':60 'gas':168 'geocod':170 'get':1,18 'handl':104 'header':116 'i.e':144 'infer':160 'inlin':105 'json':101 'key':83 'limit':86 'live':134 'lowpaymentfee' 'lowpaymentfee.com':51,152 'max':137 'network':74 'no-api-key' 'offer':54 'page':182 'part':48 'pay':11,28 'pay-per-cal':10,27 'pay-per-call' 'payment':69,102,115,121 'per':12,29 'platform':52,153 'point':180 'post':97 'price':4,21,40,179 'protocol':70,109 'public':199 'rate':85,167 'request':76,98 'request/response':195 'requir':90,187 'return':37,100 'schema':196 'sentiment':161 'sign':119 'specif':92 'subscript':89 'summar':163 'token':7,24,45 'token price lookup' 'token-price' 'unit':143 'usdc':80,120,146 'usdc-settlement' 'util':62 'varieti':56 'via':8,25,66,106 'view':192 'wallet':189 'x':114 'x-payment':113 'x402':14,31,68,108,128 'x402 crypto API' 'x402-payment'","prices":[{"id":"7ae450b6-9072-4f17-8df2-551101ba909f","listingId":"a34fb5bb-374a-4306-8049-d37e8c6de03e","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/COMP/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":"2026-04-18T18:34:25.089Z"}],"sources":[{"listingId":"a34fb5bb-374a-4306-8049-d37e8c6de03e","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/tokens/COMP/price","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:34:25.089Z","lastSeenAt":"2026-04-23T20:01:31.592Z"}],"details":{"listingId":"a34fb5bb-374a-4306-8049-d37e8c6de03e","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/tokens/COMP/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":"The endpoint returns HTTP 402 with an x402 challenge requiring USDC payment on Base, maxAmountRequired 20000 base units ($0.02).","source_url":"https://lowpaymentfee.com/api/v1/tokens/COMP/price"},{"claim":"The platform advertises $0.02/request pricing with no API keys, no rate limits, and instant access on the Base network.","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913.","source_url":"https://lowpaymentfee.com/api/v1/tokens/COMP/price"}],"useCases":["Fetching the real-time price of COMP token for trading bots or dashboards","Integrating token price data into DeFi applications without managing API keys","Agent-driven portfolio monitoring that pays per request with USDC on Base"],"bestFor":["Developers needing quick, keyless access to COMP token pricing","AI agents that can settle micropayments via x402 on Base","Applications requiring on-demand crypto price data without subscriptions"],"notFor":["Bulk historical price data retrieval (no evidence of historical endpoints)","Users who cannot transact in USDC on the Base network"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-27T17:35:30.043Z"},"updatedAt":"2026-04-23T20:01:31.592Z"}}