Pay-per-call Gemini AI endpoint on Base via x402 — $0.02/request in USDC
What it does
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.
The 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.
Documentation 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.
Capabilities
Use cases
- —Generating text completions or conversational responses via Gemini without needing an API key or account
- —Integrating AI text generation into autonomous agent workflows that can settle payments on-chain
- —Prototyping LLM-powered features with minimal setup — just attach a payment header
Fit
Best for
- —Developers who want keyless, pay-as-you-go access to Gemini
- —AI agents that can autonomously pay for LLM inference via x402 on Base
- —Quick prototyping without account signup or billing configuration
Not for
- —Production workloads requiring documented request/response schemas and SLAs
- —Users who need free-tier or high-volume discounted pricing
- —Applications requiring fine-tuned or custom model configurations
Quick start
curl -X POST https://lowpaymentfee.com/api/genai/gemini/new \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-token>" \
-d '{"prompt": "Explain quantum computing in one paragraph"}'Example
Request
{
"prompt": "Explain quantum computing in one paragraph"
}Endpoint
Quality
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 listing.
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
Citations
- —Endpoint returns 402 with x402 challenge requiring USDC payment on Base networkhttps://lowpaymentfee.com/api/genai/gemini/new
- —maxAmountRequired is 20000 base units of USDC (asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) which equals $0.02https://lowpaymentfee.com/api/genai/gemini/new
- —Provider advertises $0.02/request pricing with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —Documentation pages (/docs, /api, /pricing, /README) render only 'Connect wallet' with no substantive contenthttps://lowpaymentfee.com/docs