{"id":"eebc8095-d2ba-40f8-9d47-27f6c2f18e45","shortId":"3byZM7","kind":"x402","title":"DeFi liquidity data for FLR on the Flare network, paid per-call via x402 on Base.","tagline":"DeFi liquidity data for FLR on the Flare network, paid per-call via x402 on Base.","description":"This endpoint at lowpaymentfee.com provides DeFi liquidity data for FLR (Flare) via a POST request to `/api/v1/defi/FLR/liquidity`. It is part of a broader suite of pay-per-request APIs offered by lowpaymentfee.com spanning data analytics, AI/ML inference, finance/Web3, and infrastructure utilities. All endpoints use the x402 payment protocol, settling in USDC on the Base network.\n\nThe x402 challenge confirms the endpoint is live and accepts payments of up to 20,000 base units of USDC (0x8335…2913 on Base). Since USDC uses 6 decimals, this translates to $0.02 per request, consistent with the site's advertised flat pricing. Payment is made via the `X-PAYMENT` header using the x402 \"exact\" scheme, with a 300-second timeout window. No API keys or rate limits are advertised; access is gated purely by micropayment.\n\nDocumentation is extremely sparse. The crawled docs, API, pricing, and README pages all returned only a \"Connect wallet\" prompt with no additional technical detail. There is no OpenAPI schema, no request/response examples, and no description of what fields the liquidity endpoint accepts or returns. The endpoint is discoverable and marked as accepting HTTP POST with JSON output, but the actual request body schema and response structure are unknown. Users should expect to experiment or contact the provider for integration details.","tags":[],"capabilities":["defi-liquidity-data","flr-flare","x402-payment","usdc-base","per-request-pricing","no-api-key","http-post"],"categories":["defi","finance"],"synonyms":["Flare liquidity","FLR DeFi","liquidity pool data","DeFi analytics","Flare network liquidity","crypto liquidity API","x402 DeFi"],"warnings":["No API documentation available — docs, pricing, API, and README pages all render only a 'Connect wallet' prompt with no technical content.","No request body schema or response schema provided; the exact fields accepted and returned are unknown.","The endpoint path suggests FLR/Flare DeFi liquidity data, but this is inferred from the URL alone — no description confirms it.","This specific /defi/FLR/liquidity path is not listed on the provider's homepage among their advertised endpoints, raising questions about its status."],"endpointUrl":"https://lowpaymentfee.com/api/v1/defi/FLR/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/FLR/liquidity","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, and pricing is clear ($0.02/request in USDC on Base). However, there is no OpenAPI schema, no request/response examples, and all documentation pages returned only a wallet-connect stub. The actual data returned by this endpoint is entirely unknown, making this effectively a stub 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'0.02':123 '000':106 '0x8335':111 '20':105 '2913':112 '300':150 '6':118 'DeFi analytics' 'FLR DeFi' 'Flare liquidity' 'Flare network liquidity' 'accept':100,209,219 'access':162 'actual':227 'addit':189 'advertis':131,161 'ai/ml':71 'analyt':70 'api':64,155,175 'base':17,34,89,107,114 'bodi':229 'broader':57 'call':13,30 'challeng':93 'confirm':94 'connect':184 'consist':126 'contact':242 'crawl':173 'crypto liquidity API' 'data':3,20,42,69 'decim':119 'defi':1,18,40 'defi-liquidity-data' 'descript':202 'detail':191,247 'discover':215 'doc':174 'document':168 'endpoint':36,78,96,208,213 'exact':146 'exampl':199 'expect':238 'experi':240 'extrem':170 'field':205 'finance/web3':73 'flare':8,25,45 'flat':132 'flr':5,22,44 'flr-flare' 'gate':164 'header':142 'http':220 'http-post' 'infer':72 'infrastructur':75 'integr':246 'json':223 'key':156 'limit':159 'liquid':2,19,41,207 'liquidity pool data' 'live':98 'lowpaymentfee.com':38,67 'made':136 'mark':217 'micropay':167 'network':9,26,90 'no-api-key' 'offer':65 'openapi':195 'output':224 'page':179 'paid':10,27 'part':54 'pay':61 'pay-per-request':60 'payment':82,101,134,141 'per':12,29,62,124 'per-cal':11,28 'per-request-pricing' 'post':48,221 'price':133,176 'prompt':186 'protocol':83 'provid':39,244 'pure':165 'rate':158 'readm':178 'request':49,63,125,228 'request/response':198 'respons':232 'return':181,211 'schema':196,230 'scheme':147 'second':151 'settl':84 'sinc':115 'site':129 'span':68 'spars':171 'structur':233 'suit':58 'technic':190 'timeout':152 'translat':121 'unit':108 'unknown':235 'usdc':86,110,116 'usdc-base' 'use':79,117,143 'user':236 'util':76 'via':14,31,46,137 'wallet':185 'window':153 'x':140 'x-payment':139 'x402':15,32,81,92,145 'x402 DeFi' 'x402-payment'","prices":[{"id":"7d0b3920-96b6-4a6d-b614-2120226401b5","listingId":"eebc8095-d2ba-40f8-9d47-27f6c2f18e45","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/FLR/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":"2026-04-18T18:35:08.456Z"}],"sources":[{"listingId":"eebc8095-d2ba-40f8-9d47-27f6c2f18e45","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/defi/FLR/liquidity","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:35:08.456Z","lastSeenAt":"2026-04-22T23:00:53.806Z"}],"details":{"listingId":"eebc8095-d2ba-40f8-9d47-27f6c2f18e45","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/defi/FLR/liquidity \\\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":"The endpoint returns a 402 challenge with maxAmountRequired of 20000 base units of USDC on Base network","source_url":"https://lowpaymentfee.com/api/v1/defi/FLR/liquidity"},{"claim":"All endpoints are priced at $0.02 per request with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/defi/FLR/liquidity"}],"useCases":["Querying current DeFi liquidity metrics for FLR tokens","Building dashboards that display Flare ecosystem liquidity","Automated trading bots that need liquidity depth data before executing swaps","Research and analytics on Flare DeFi protocol health"],"bestFor":["Agents or bots needing on-demand DeFi liquidity data without API key management","Developers who prefer pay-per-call micropayments over subscription billing","Quick prototyping against Flare DeFi data"],"notFor":["Users who need detailed API documentation or guaranteed SLAs before integrating","High-frequency consumers who would benefit from bulk/subscription pricing","Anyone needing liquidity data for chains other than Flare (this endpoint is FLR-specific)"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:51.695Z"},"updatedAt":"2026-04-22T23:00:53.806Z"}}