{"id":"c7d43036-8fd5-4aa7-9a62-20d2e9598564","shortId":"2y5dYP","kind":"x402","title":"GMX liquidity data via x402 micropayment on Base — $0.02 per request, no API key needed.","tagline":"GMX liquidity data via x402 micropayment on Base — $0.02 per request, no API key needed.","description":"This endpoint at lowpaymentfee.com provides DeFi liquidity data for the GMX protocol, accessible via the x402 payment protocol. Each request costs $0.02 (20,000 base units of USDC on the Base network, where USDC has 6 decimals). No API keys or accounts are required — callers simply attach an x402 payment header with each request.\n\nThe endpoint accepts POST requests and returns JSON. It is part of a broader suite of pay-per-call APIs offered by lowpaymentfee.com spanning data analytics, AI/ML inference, finance/Web3, and utility services, all priced at $0.02 per call. The x402 challenge was successfully captured, confirming the endpoint is live and accepting payment challenges on the Base L2 network, settling in USDC (contract 0x8335…2913).\n\nDocumentation is extremely sparse — the docs, API, pricing, and README pages all returned only a \"Connect wallet\" prompt with no further content. There is no OpenAPI schema, no request/response examples, and no description of what fields the GMX liquidity endpoint accepts or returns. The endpoint's actual data coverage (which GMX markets, which chains, historical vs. real-time) is unknown from the available material.","tags":[],"capabilities":["defi-liquidity-data","gmx-protocol","x402-micropayment","base-network","usdc-settlement","pay-per-request","no-api-key"],"categories":["defi","finance"],"synonyms":["GMX liquidity","DeFi liquidity API","GMX market data","decentralized exchange liquidity","GMX TVL","perpetual exchange liquidity","x402 DeFi API"],"warnings":["No documentation available — docs, API, pricing, and README pages all return only 'Connect wallet' with no content.","No OpenAPI or request/response schema provided; input parameters and output fields are unknown.","Endpoint purpose inferred solely from URL path '/api/v1/defi/GMX/liquidity' — actual functionality unverified.","The broader lowpaymentfee.com platform lists many diverse endpoints (AI, geocoding, finance) at identical pricing, which may indicate a generic wrapper rather than a specialized data provider."],"endpointUrl":"https://lowpaymentfee.com/api/v1/defi/GMX/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/GMX/liquidity","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The x402 challenge is live 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 are empty stubs. The actual data returned by this endpoint is entirely unknown, making it effectively a stub 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'000':54 '0x8335':148 '20':53 '2913':149 '6':66 'DeFi liquidity API' 'GMX TVL' 'GMX liquidity' 'GMX market data' 'accept':87,136,190 'access':43 'account':72 'actual':196 'ai/ml':112 'analyt':111 'api':13,28,69,105,156 'attach':77 'avail':213 'base':8,23,55,61,141 'base-network' 'broader':98 'call':104,123 'caller':75 'captur':129 'chain':203 'challeng':126,138 'confirm':130 'connect':165 'content':171 'contract':147 'cost':51 'coverag':198 'data':3,18,38,110,197 'decentralized exchange liquidity' 'decim':67 'defi':36 'defi-liquidity-data' 'descript':182 'doc':155 'document':150 'endpoint':32,86,132,189,194 'exampl':179 'extrem':152 'field':185 'finance/web3':114 'gmx':1,16,41,187,200 'gmx-protocol' 'header':81 'histor':204 'infer':113 'json':92 'key':14,29,70 'l2':142 'liquid':2,17,37,188 'live':134 'lowpaymentfee.com':34,108 'market':201 'materi':214 'micropay':6,21 'need':15,30 'network':62,143 'no-api-key' 'offer':106 'openapi':175 'page':160 'part':95 'pay':102 'pay-per-cal':101 'pay-per-request' 'payment':47,80,137 'per':10,25,103,122 'perpetual exchange liquidity' 'post':88 'price':119,157 'prompt':167 'protocol':42,48 'provid':35 'readm':159 'real':207 'real-tim':206 'request':11,26,50,84,89 'request/response':178 'requir':74 'return':91,162,192 'schema':176 'servic':117 'settl':144 'simpli':76 'span':109 'spars':153 'success':128 'suit':99 'time':208 'unit':56 'unknown':210 'usdc':58,64,146 'usdc-settlement' 'util':116 'via':4,19,44 'vs':205 'wallet':166 'x402':5,20,46,79,125 'x402 DeFi API' 'x402-micropayment'","prices":[{"id":"801de60e-0049-4ab3-a369-24ed5a69eec2","listingId":"c7d43036-8fd5-4aa7-9a62-20d2e9598564","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/GMX/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":"2026-04-18T18:32:33.330Z"}],"sources":[{"listingId":"c7d43036-8fd5-4aa7-9a62-20d2e9598564","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/defi/GMX/liquidity","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:32:33.330Z","lastSeenAt":"2026-04-23T02:00:20.085Z"}],"details":{"listingId":"c7d43036-8fd5-4aa7-9a62-20d2e9598564","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/defi/GMX/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":"Endpoint returns HTTP 402 with x402 challenge, confirming it is live on Base network with USDC settlement","source_url":"https://lowpaymentfee.com/api/v1/defi/GMX/liquidity"},{"claim":"maxAmountRequired is 20000 base units of USDC (6 decimals) = $0.02 per request","source_url":"https://lowpaymentfee.com/api/v1/defi/GMX/liquidity"},{"claim":"USDC asset contract on Base: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/defi/GMX/liquidity"},{"claim":"Site advertises $0.02/request pricing with no API keys, no rate limits, instant access on Base network","source_url":"https://lowpaymentfee.com"}],"useCases":["Querying real-time GMX protocol liquidity pools and positions","Building DeFi dashboards that aggregate liquidity across protocols","Automated trading bots that need GMX liquidity depth before executing","Research and analytics on GMX protocol liquidity trends"],"bestFor":["Agents or bots needing on-demand GMX liquidity snapshots without managing API keys","Developers prototyping DeFi tools who want instant pay-per-call access","Low-volume consumers who prefer micropayments over monthly subscriptions"],"notFor":["High-frequency trading requiring sub-second latency and bulk data (no documented rate guarantees)","Users needing comprehensive GMX analytics with documented schemas and field definitions","Anyone without a Base-network USDC wallet or x402-compatible client"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:59.306Z"},"updatedAt":"2026-04-23T02:00:20.085Z"}}