Historical stock price data for WM (Walmart) via pay-per-request x402 on Base.
What it does
This endpoint at lowpaymentfee.com provides historical stock price data for the ticker WM (Walmart). It is part of a broader suite of paid APIs offered by lowpaymentfee.com, which spans data analytics, AI/ML inference, finance, crypto, and utility services. All endpoints on the platform use the x402 payment protocol, settling in USDC on the Base network.
The specific endpoint `/api/v1/stocks/WM/history` accepts POST requests and returns JSON. The x402 challenge confirms the endpoint is live, advertising a maximum cost of $0.02 per request (20,000 base units of USDC with 6 decimals). No API keys or rate limits are required — payment is handled inline via the X-PAYMENT header. The platform advertises uniform $0.02/request pricing across all its endpoints.
Documentation is extremely sparse. The landing page lists available endpoints and pricing, but the /docs, /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 fields the historical stock data response contains. The URL pattern suggests the stock ticker is embedded in the path (e.g., `/stocks/WM/history`), but it is unclear whether other tickers are available at similar paths or what query parameters (date ranges, intervals) are supported.
Capabilities
Use cases
- —Retrieving historical stock price data for Walmart (WM) 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 historical stock data without API key management
- —Low-volume or sporadic stock data lookups where per-request pricing is economical
- —Developers experimenting with x402 payment-gated financial APIs
Not for
- —High-frequency or bulk historical data downloads (no documented batch endpoint)
- —Users needing comprehensive documentation, schemas, or guaranteed SLAs
- —Non-crypto users who cannot settle payments in USDC on Base
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/stocks/WM/history \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_token>"Endpoint
Quality
The endpoint is live and returns a valid x402 challenge with clear pricing ($0.02 USDC on Base). However, there is no OpenAPI schema, no request/response examples, and all documentation pages are empty stubs. The actual data returned is entirely unknown, making this effectively a stub listing.
Warnings
- —No documentation available — /docs, /pricing, /README all return only 'Connect wallet' with no content
- —No OpenAPI or JSON schema describing request parameters or response format
- —Unknown whether other stock tickers are supported or what query parameters are accepted
- —Response structure for historical stock data is completely undocumented
Citations
- —Endpoint returns a 402 x402 challenge with maxAmountRequired of 20000 base units of USDC on Basehttps://lowpaymentfee.com/api/v1/stocks/WM/history
- —Platform advertises $0.02/request uniform 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/WM/history