{"id":"b4589a57-a5d9-4cb2-ac8e-ab43e8415aae","shortId":"JdprJS","kind":"x402","title":"Compound DeFi pool data via x402 micropayment on Base, $0.02 per request.","tagline":"Compound DeFi pool data via x402 micropayment on Base, $0.02 per request.","description":"This endpoint at lowpaymentfee.com provides access to Compound protocol pool data through a pay-per-call x402 micropayment model settled in USDC on the Base network. Each request costs $0.02 (20,000 base units of USDC with 6 decimals). No API keys or rate limits are required — callers simply attach an x402 payment header to a POST request.\n\nThe endpoint is part of a broader platform (lowpaymentfee.com) that offers dozens of APIs across DeFi, analytics, AI/ML, and utility categories, all at the same $0.02-per-request price point. The specific endpoint `/api/v1/defi/compound/pools` is focused on Compound protocol pool information, though the exact response schema is not documented in the available materials. The payment is made to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3 using USDC (contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) on Base.\n\nDocumentation is extremely sparse — the docs, pricing, and API pages all render only a \"Connect wallet\" prompt with no further content. There is no OpenAPI spec, no response schema, and no example payloads available. The endpoint is confirmed live via a valid 402 challenge response.","tags":[],"capabilities":["defi-data","compound-protocol","pool-data","x402-payment","usdc-base","pay-per-request","no-api-key"],"categories":["defi","finance"],"synonyms":["Compound pools","Compound Finance API","DeFi pool data","lending pool info","Compound v3 pools","DeFi analytics","yield data"],"warnings":["No documentation available — docs, pricing, and API pages all show only 'Connect wallet'","No response schema or example payloads; the structure of returned Compound pool data is unknown","No OpenAPI or machine-readable spec provided","The endpoint path suggests DeFi/Compound pool data but this is unverified beyond the URL naming"],"endpointUrl":"https://lowpaymentfee.com/api/v1/defi/compound/pools","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/defi/compound/pools","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 OpenAPI spec, no response schema, no example requests or responses, and all documentation pages render only 'Connect wallet' with no useful content. The actual data returned by this endpoint is entirely 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'0.02':10,22,55,109 '000':57 '0x1a2b13e97f5f837c8f9fa1f95a1484b7c70d85f3':144 '0x833589fcd6edb6e08f4c7c32d4f71b54bda02913':148 '20':56 '402':193 '6':63 'Compound Finance API' 'Compound pools' 'Compound v3 pools' 'DeFi analytics' 'DeFi pool data' 'access':30 'across':98 'address':143 'ai/ml':101 'analyt':100 'api':66,97,159 'attach':75 'avail':136,184 'base':9,21,50,58,150 'broader':90 'call':41 'caller':73 'categori':104 'challeng':194 'compound':1,13,32,122 'compound-protocol' 'confirm':188 'connect':165 'content':171 'contract':147 'cost':54 'data':4,16,35 'decim':64 'defi':2,14,99 'defi-data' 'doc':156 'document':133,151 'dozen':95 'endpoint':26,85,117,186 'exact':128 'exampl':182 'extrem':153 'focus':120 'header':79 'inform':125 'key':67 'lending pool info' 'limit':70 'live':189 'lowpaymentfee.com':28,92 'made':141 'materi':137 'micropay':7,19,43 'model':44 'network':51 'no-api-key' 'offer':94 'openapi':175 'page':160 'part':87 'pay':39 'pay-per-cal':38 'pay-per-request' 'payload':183 'payment':78,139 'per':11,23,40,111 'per-request':110 'platform':91 'point':114 'pool':3,15,34,124 'pool-data' 'post':82 'price':113,157 'prompt':167 'protocol':33,123 'provid':29 'rate':69 'render':162 'request':12,24,53,83,112 'requir':72 'respons':129,178,195 'schema':130,179 'settl':45 'simpli':74 'spars':154 'spec':176 'specif':116 'though':126 'unit':59 'usdc':47,61,146 'usdc-base' 'use':145 'util':103 'valid':192 'via':5,17,190 'wallet':166 'x402':6,18,42,77 'x402-payment' 'yield data'","prices":[{"id":"35fdf23b-5204-4716-b33a-f5614ae994f9","listingId":"b4589a57-a5d9-4cb2-ac8e-ab43e8415aae","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/defi/compound/pools","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:09.570Z"}],"sources":[{"listingId":"b4589a57-a5d9-4cb2-ac8e-ab43e8415aae","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/defi/compound/pools","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:09.570Z","lastSeenAt":"2026-04-22T02:31:47.573Z"}],"details":{"listingId":"b4589a57-a5d9-4cb2-ac8e-ab43e8415aae","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/defi/compound/pools \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-token>\"","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 with USDC on Base network","source_url":"https://lowpaymentfee.com/api/v1/defi/compound/pools"},{"claim":"Price is $0.02 per request (20000 base units USDC, 6 decimals)","source_url":"https://lowpaymentfee.com"},{"claim":"No API keys, no rate limits, instant access advertised","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/defi/compound/pools"}],"useCases":["Querying current Compound protocol pool information for portfolio dashboards","Automated DeFi agents monitoring lending pool parameters","Comparing Compound pool yields across assets"],"bestFor":["Agents needing on-demand DeFi pool data without API key management","Low-volume consumers who prefer pay-per-call over subscriptions","Base network users who can settle USDC micropayments natively"],"notFor":["High-frequency trading bots needing sub-second latency guarantees (no SLA documented)","Users who need detailed documentation or guaranteed response schemas before integrating","Anyone needing historical Compound data in bulk (no batch endpoint documented)"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:23.299Z"},"updatedAt":"2026-04-22T02:31:47.573Z"}}