Historical stock data for NVDA via x402 micropayment on Base, $0.02 per request.
What it does
This endpoint provides historical stock price data for NVIDIA (NVDA) through the lowpaymentfee.com platform. It is part of a broader suite of pay-per-request APIs covering finance, AI/ML, data analytics, and utility services. Payment is handled via the x402 protocol using USDC on the Base network, with each request costing $0.02 (20,000 base units of USDC with 6 decimals).
The endpoint accepts POST requests and returns JSON. No API keys or account registration are required — callers simply attach an X-PAYMENT header with a valid x402 payment proof. The platform advertises no rate limits and instant access. The x402 challenge was successfully captured, confirming the endpoint is live.
Documentation is extremely sparse. The crawled docs, API, pricing, and README pages all returned only a "Connect wallet" prompt with no substantive content. There is no OpenAPI schema, no request/response examples, and no description of what parameters the POST body accepts or what fields the historical stock data response contains. The endpoint path suggests it returns historical price data for the NVDA ticker, but the exact schema, date range support, and granularity are unknown.
Capabilities
Use cases
- —Retrieving historical price data for NVIDIA stock for backtesting or analysis
- —Building trading dashboards that pull NVDA history on demand
- —Agent-driven financial research workflows that pay per query with no subscription
Fit
Best for
- —Developers wanting frictionless pay-per-call stock data without API key management
- —AI agents that need on-demand NVDA historical data with crypto micropayments
- —Prototyping financial tools where low per-request cost matters more than comprehensive documentation
Not for
- —Production systems requiring well-documented, schema-validated stock data APIs
- —Users needing historical data for tickers other than NVDA (this endpoint is ticker-specific)
- —Teams that need fiat billing or traditional API key authentication
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/stocks/NVDA/history \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_proof>"Endpoint
Quality
The x402 challenge confirms the endpoint 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 request parameters and response format are entirely unknown.
Warnings
- —No documentation available — docs, API, pricing, and README pages all return only a wallet-connect prompt with no content
- —No OpenAPI or JSON schema provided for request or response bodies
- —Request body parameters (e.g., date range, granularity) are completely unknown
- —This endpoint is specific to NVDA; coverage of other tickers is not confirmed at this path
Citations
- —The endpoint returns a 402 x402 challenge with maxAmountRequired of 20000 base units of USDC on Base networkhttps://lowpaymentfee.com/api/v1/stocks/NVDA/history
- —The platform advertises $0.02 per request, no API keys, no rate limits, and instant accesshttps://lowpaymentfee.com
- —The asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 is USDC on Basehttps://lowpaymentfee.com