Historical stock data for NOC (Northrop Grumman) via pay-per-request x402 on Base.
What it does
This endpoint provides historical stock price data for Northrop Grumman (ticker: NOC) through the lowpaymentfee.com platform. It is part of a broader suite of finance, analytics, AI, and utility APIs all accessible via the x402 payment protocol on the Base network.
The endpoint accepts POST requests and returns JSON. Payment is settled in USDC on Base at $0.02 per request (maxAmountRequired of 20,000 base units with USDC's 6 decimals). There are no API keys, no rate limits, and no minimum commitments — callers simply attach an x402 payment header to each request. The x402 challenge was successfully captured, confirming the endpoint is live.
Documentation beyond the landing page is extremely sparse. The /docs, /pricing, /api, 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 fields the historical stock data includes (e.g., OHLCV, date ranges, granularity). The input schema and response format must be inferred or discovered by making a paid request.
Capabilities
Use cases
- —Retrieving historical price data for Northrop Grumman (NOC) for backtesting or analysis
- —Integrating stock history into an AI agent workflow with automatic micropayments
- —Building financial dashboards that pull historical equity data on demand
Fit
Best for
- —Agents or apps needing on-demand stock history without API key management
- —Crypto-native workflows that can pay per request in USDC on Base
- —Low-volume or sporadic access to NOC historical data
Not for
- —High-frequency trading requiring sub-second latency and bulk data
- —Users who need comprehensive multi-ticker coverage from a single documented API
- —Anyone without a Base-compatible USDC wallet
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/stocks/NOC/history \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_header>" \
-d '{}'Endpoint
Quality
The endpoint is live (402 challenge captured) and pricing is clear ($0.02/request in USDC on Base), but there is no documentation, no OpenAPI schema, no request/response examples, and no description of what fields or parameters the stock history endpoint supports. Effectively a stub listing.
Warnings
- —No documentation available — /docs, /pricing, /api, and /README all return only a wallet-connect prompt with no content
- —No OpenAPI or JSON schema describing request parameters or response format
- —Unknown what historical data fields are returned (OHLCV? date range? granularity?)
- —The broader lowpaymentfee.com platform lists many diverse endpoints; unclear how mature or reliable any individual endpoint is
Citations
- —Endpoint returns 402 with x402 challenge advertising USDC on Base, maxAmountRequired 20000 base unitshttps://lowpaymentfee.com/api/v1/stocks/NOC/history
- —Platform advertises $0.02/request pricing with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —USDC asset contract on Base: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/stocks/NOC/history