{"id":"f6af8a37-ff34-4b23-b20d-939dbc8a1332","shortId":"ppCxRj","kind":"x402","title":"Lido TVL data via x402 micropayment on Base — $0.02 per request, no API key needed.","tagline":"Lido TVL data via x402 micropayment on Base — $0.02 per request, no API key needed.","description":"This endpoint returns Lido protocol Total Value Locked (TVL) data, accessible through the x402 payment protocol on the Base network. It is part of a broader suite of pay-per-call APIs hosted at lowpaymentfee.com, covering DeFi data, analytics, AI/ML inference, finance, crypto, and utility services.\n\nThe endpoint accepts POST requests and charges $0.02 per call, settled in USDC on Base (contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913). Payment is handled via the x402 exact-payment scheme — no API keys, accounts, or rate limits are required. The caller includes an X-PAYMENT header with a signed payment proof, and the server returns the data in application/json format. The maximum payment timeout is 300 seconds.\n\nDocumentation on the site is extremely sparse — the docs, pricing, API, and README pages all render only a \"Connect wallet\" prompt with no additional content. There is no OpenAPI schema, no example request/response payloads, and no description of the response format for the Lido TVL endpoint specifically. The endpoint is confirmed live (returns a proper 402 challenge), but the actual data shape returned after payment is unknown.","tags":[],"capabilities":["defi-data","lido-tvl","x402-payment","usdc-base","pay-per-request","no-api-key"],"categories":["defi","finance","data"],"synonyms":["Lido total value locked","Lido TVL API","DeFi TVL data","Lido staking data","x402 DeFi API","micropayment API","Base USDC API"],"warnings":["No documentation available — docs, pricing, API, and README pages all show only 'Connect wallet' with no content.","Response schema for the Lido TVL endpoint is completely unknown — no examples or field descriptions exist.","The endpoint path suggests Lido TVL data, but there is no confirmation of what data fields are returned after payment.","This specific endpoint (/api/v1/defi/lido/tvl) is not listed on the homepage's available APIs section, raising questions about its status."],"endpointUrl":"https://lowpaymentfee.com/api/v1/defi/lido/tvl","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/lido/tvl","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 USDC on Base). However, there is no documentation, no OpenAPI schema, no example request or response payloads, and the docs/pricing/API pages are all empty. The actual response format is entirely 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'0x833589fcd6edb6e08f4c7c32d4f71b54bda02913':94 '300':141 '402':198 'Base USDC API' 'DeFi TVL data' 'Lido TVL API' 'Lido staking data' 'Lido total value locked' 'accept':80 'access':41 'account':108 'actual':202 'addit':166 'ai/ml':71 'analyt':70 'api':13,28,63,106,153 'application/json':134 'base':8,23,49,92 'broader':56 'call':62,87 'caller':115 'challeng':199 'charg':84 'confirm':193 'connect':161 'content':167 'contract':93 'cover':67 'crypto':74 'data':3,18,40,69,132,203 'defi':68 'defi-data' 'descript':179 'doc':151 'document':143 'endpoint':32,79,188,191 'exact':102 'exact-pay':101 'exampl':174 'extrem':148 'financ':73 'format':135,183 'handl':97 'header':121 'host':64 'includ':116 'infer':72 'key':14,29,107 'lido':1,16,34,186 'lido-tvl' 'limit':111 'live':194 'lock':38 'lowpaymentfee.com':66 'maximum':137 'micropay':6,21 'micropayment API' 'need':15,30 'network':50 'no-api-key' 'openapi':171 'page':156 'part':53 'pay':60 'pay-per-cal':59 'pay-per-request' 'payload':176 'payment':45,95,103,120,125,138,207 'per':10,25,61,86 'post':81 'price':152 'prompt':163 'proof':126 'proper':197 'protocol':35,46 'rate':110 'readm':155 'render':158 'request':11,26,82 'request/response':175 'requir':113 'respons':182 'return':33,130,195,205 'schema':172 'scheme':104 'second':142 'server':129 'servic':77 'settl':88 'shape':204 'sign':124 'site':146 'spars':149 'specif':189 'suit':57 'timeout':139 'total':36 'tvl':2,17,39,187 'unknown':209 'usdc':90 'usdc-base' 'util':76 'valu':37 'via':4,19,98 'wallet':162 'x':119 'x-payment':118 'x402':5,20,44,100 'x402 DeFi API' 'x402-payment'","prices":[{"id":"93ea5ed4-3ce3-4949-ae42-98c1b16f73f4","listingId":"f6af8a37-ff34-4b23-b20d-939dbc8a1332","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/lido/tvl","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-19T12:29:44.554Z"}],"sources":[{"listingId":"f6af8a37-ff34-4b23-b20d-939dbc8a1332","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/defi/lido/tvl","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-19T12:29:44.554Z","lastSeenAt":"2026-04-22T19:32:38.338Z"}],"details":{"listingId":"f6af8a37-ff34-4b23-b20d-939dbc8a1332","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/defi/lido/tvl \\\n  -H \"X-PAYMENT: <x402-payment-proof>\" \\\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 challenge, confirming it is live on Base network using USDC","source_url":"https://lowpaymentfee.com/api/v1/defi/lido/tvl"},{"claim":"maxAmountRequired is 20000 base units of USDC (6 decimals) = $0.02 per request","source_url":"https://lowpaymentfee.com/api/v1/defi/lido/tvl"},{"claim":"Site advertises $0.02/request pricing with no API keys, no rate limits, instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract on Base: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/defi/lido/tvl"}],"useCases":["Querying current Lido protocol TVL for DeFi dashboards","Automated monitoring of Lido staking metrics","Integrating Lido TVL data into trading or analytics bots","On-demand DeFi data retrieval without managing API keys"],"bestFor":["Agents or bots that need on-demand Lido TVL data without account setup","Developers building DeFi dashboards who prefer pay-per-call pricing","x402-compatible clients on the Base network"],"notFor":["High-frequency polling where per-request costs would accumulate quickly","Users who need detailed historical TVL time-series (no evidence this is supported)","Anyone needing comprehensive Lido analytics beyond TVL"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:23.603Z"},"updatedAt":"2026-04-22T19:32:38.338Z"}}