{"id":"d6a1b729-a2d8-4725-b078-165faecca966","shortId":"vwgupn","kind":"x402","title":"DeFi liquidity data for LDO token via pay-per-call x402 on Base","tagline":"DeFi liquidity data for LDO token via pay-per-call x402 on Base","description":"This endpoint provides DeFi liquidity information for the LDO (Lido DAO) token, accessible via the x402 payment protocol on the Base network. It is part of a broader API platform at lowpaymentfee.com that offers data & analytics, AI/ML inference, finance/Web3, and infrastructure endpoints, all gated behind x402 micropayments settled in USDC on Base.\n\nThe specific endpoint `/api/v1/defi/LDO/liquidity` accepts POST requests and returns JSON. The x402 challenge indicates a maximum cost of 20,000 base units of USDC (0x8335…2913 on Base), which equals $0.02 per request (USDC uses 6 decimals, so 20000 / 10^6 = $0.02). The platform advertises uniform $0.02/request pricing across all endpoints, with no API keys, no rate limits, and no minimum commitments required.\n\nNote that while the endpoint is live and returning a valid 402 challenge, the actual response schema and detailed documentation for this specific DeFi liquidity endpoint are not available. The crawled docs, pricing, API, and README pages all returned only a \"Connect wallet\" prompt with no substantive content. It is unclear exactly what liquidity metrics are returned (e.g., TVL, pool depths, DEX-specific data). The endpoint is not listed on the provider's homepage among the advertised API categories, suggesting it may be an unlisted or newer addition to the platform.","tags":[],"capabilities":["defi-liquidity-data","ldo-token","x402-payment","usdc-settlement","base-network","pay-per-call","no-api-key"],"categories":["defi","finance"],"synonyms":["LDO liquidity","Lido DAO liquidity","DeFi liquidity API","token liquidity data","LDO DeFi data","crypto liquidity endpoint"],"warnings":["No response schema or example response available for this endpoint","Endpoint not listed among the provider's advertised APIs on the homepage — may be unlisted or experimental","All documentation pages (docs, pricing, API, README) returned no substantive content","Actual data quality and coverage of LDO liquidity metrics is unknown"],"endpointUrl":"https://lowpaymentfee.com/api/v1/defi/LDO/liquidity","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/LDO/liquidity","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The endpoint is live and returns a valid x402 402 challenge with clear pricing, but there is no documentation, no response schema, no example responses, and the endpoint is not even listed on the provider's own homepage. The docs/pricing/API pages are all empty beyond a wallet-connect 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'/request':128 '0.02':111,122,127 '000':100 '0x8335':105 '10':120 '20':99 '20000':119 '2913':106 '402':156 '6':116,121 'DeFi liquidity API' 'LDO DeFi data' 'LDO liquidity' 'Lido DAO liquidity' 'accept':85 'access':41 'across':130 'actual':159 'addit':233 'advertis':125,222 'ai/ml':65 'among':220 'analyt':64 'api':57,135,178,223 'avail':173 'base':14,28,49,80,101,108 'base-network' 'behind':73 'broader':56 'call':11,25 'categori':224 'challeng':93,157 'commit':143 'connect':186 'content':192 'cost':97 'crawl':175 'crypto liquidity endpoint' 'dao':39 'data':3,17,63,209 'decim':117 'defi':1,15,32,168 'defi-liquidity-data' 'depth':205 'detail':163 'dex':207 'dex-specif':206 'doc':176 'document':164 'e.g':202 'endpoint':30,70,83,132,149,170,211 'equal':110 'exact':196 'finance/web3':67 'gate':72 'homepag':219 'indic':94 'infer':66 'inform':34 'infrastructur':69 'json':90 'key':136 'ldo':5,19,37 'ldo-token' 'lido':38 'limit':139 'liquid':2,16,33,169,198 'list':214 'live':151 'lowpaymentfee.com':60 'maximum':96 'may':227 'metric':199 'micropay':75 'minimum':142 'network':50 'newer':232 'no-api-key' 'note':145 'offer':62 'page':181 'part':53 'pay':9,23 'pay-per-cal':8,22 'pay-per-call' 'payment':45 'per':10,24,112 'platform':58,124,236 'pool':204 'post':86 'price':129,177 'prompt':188 'protocol':46 'provid':31,217 'rate':138 'readm':180 'request':87,113 'requir':144 'respons':160 'return':89,153,183,201 'schema':161 'settl':76 'specif':82,167,208 'substant':191 'suggest':225 'token':6,20,40 'token liquidity data' 'tvl':203 'unclear':195 'uniform':126 'unit':102 'unlist':230 'usdc':78,104,114 'usdc-settlement' 'use':115 'valid':155 'via':7,21,42 'wallet':187 'x402':12,26,44,74,92 'x402-payment'","prices":[{"id":"f0e05532-dea6-4a97-996e-e981956cbbef","listingId":"d6a1b729-a2d8-4725-b078-165faecca966","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/LDO/liquidity","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:33:37.412Z"}],"sources":[{"listingId":"d6a1b729-a2d8-4725-b078-165faecca966","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/defi/LDO/liquidity","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:33:37.412Z","lastSeenAt":"2026-04-23T00:30:58.984Z"}],"details":{"listingId":"d6a1b729-a2d8-4725-b078-165faecca966","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/defi/LDO/liquidity \\\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":"The x402 challenge requires a maximum of 20,000 base units of USDC on Base, equaling $0.02 per request","source_url":"https://lowpaymentfee.com/api/v1/defi/LDO/liquidity"},{"claim":"The platform advertises $0.02/request pricing with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset address on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/defi/LDO/liquidity"}],"useCases":["Querying current DeFi liquidity metrics for the LDO token","Integrating LDO liquidity data into trading bots or dashboards","Agent-driven DeFi research requiring per-call payment without API keys"],"bestFor":["Developers needing on-demand LDO liquidity data without subscription commitments","AI agents that can settle x402 micropayments on Base","Quick lookups of DeFi liquidity without account registration"],"notFor":["Users who need detailed API documentation or response schema guarantees before integrating","High-frequency bulk data retrieval where $0.02/call adds up significantly","Non-crypto-native users who cannot settle USDC payments on Base"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-27T18:34:01.727Z"},"updatedAt":"2026-04-23T00:30:58.984Z"}}