{"id":"ac5116e6-01ac-48e9-92f5-fe7979115ac1","shortId":"cBeH3a","kind":"x402","title":"Pay-per-call Gemini AI endpoint on Base via x402 — $0.02/request in USDC","tagline":"Pay-per-call Gemini AI endpoint on Base via x402 — $0.02/request in USDC","description":"This endpoint at lowpaymentfee.com provides access to Google's Gemini generative AI model through an x402 payment-gated API. Each request costs $0.02 (20,000 base units of USDC on the Base network, where USDC has 6 decimals). The endpoint accepts POST requests and returns application/json responses. No API keys, accounts, or rate limits are required — callers simply attach an x402 payment header with each request.\n\nThe provider, lowpaymentfee.com, hosts a broader catalog of pay-per-call APIs spanning data analytics, AI/ML (sentiment analysis, summarization, classification, embeddings), finance/Web3 (price feeds, exchange rates, token quotes, gas estimates), and infrastructure utilities (geocoding, validation, conversion, generation). All endpoints share the same $0.02/request pricing model and settle payments in USDC on the Base L2 network.\n\nDocumentation is extremely sparse — the /docs, /api, /pricing, and /README pages all render only a \"Connect wallet\" prompt with no further content. There is no OpenAPI schema, no request/response examples, and no documentation on what parameters the Gemini endpoint accepts or what shape the response takes. Callers will need to experiment or rely on conventions from the Gemini API to construct valid requests.","tags":[],"capabilities":["gemini-inference","text-generation","x402-payment","usdc-base","pay-per-request","no-api-key","no-rate-limits"],"categories":["llm","ai"],"synonyms":["gemini api","generative ai","text generation","google gemini","llm api","x402 ai","pay per call ai","base usdc api"],"warnings":["No documentation available — /docs, /api, /pricing, and /README all show only 'Connect wallet'","No OpenAPI or schema describing request parameters or response format","Request body format is entirely inferred and may not be correct","No information on which Gemini model version is used or what parameters are supported"],"endpointUrl":"https://lowpaymentfee.com/api/genai/gemini/new","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/genai/gemini/new","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The endpoint is live (402 challenge captured) and pricing is clear ($0.02 USDC on Base), but there is zero documentation — no OpenAPI schema, no request/response examples, and all doc pages render only 'Connect wallet'. The request format is entirely inferred. This is effectively a stub 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