Stock market quote for WMT (Walmart) via x402 micropayment on Base, $0.02 per request.
What it does
This endpoint provides a market quote for the ticker symbol WMT (Walmart) through the lowpaymentfee.com platform, which offers a variety of pay-per-call APIs settled via the x402 protocol on the Base network using USDC. The specific endpoint `/api/v1/market/quote/WMT` accepts POST requests and returns JSON data. Payment is $0.02 per request (20,000 base units of USDC with 6 decimals), with no API keys, rate limits, or subscriptions required.
The lowpaymentfee.com platform hosts a broad catalog of endpoints spanning data analytics, AI/ML inference, finance/Web3, and infrastructure utilities — all priced uniformly at $0.02 per call. This particular endpoint falls under the finance category and appears to return a stock or market quote for the Walmart (WMT) ticker. No OpenAPI schema, detailed documentation, or example responses were found in the crawl; the docs, API, pricing, and README pages all rendered only a "Connect wallet" prompt with no substantive content.
Because there is no published schema describing the request body format or the response structure, agents will need to experiment or rely on convention (e.g., sending an empty POST body or a JSON object with optional parameters). The endpoint is confirmed live — it returns a proper x402 402 challenge with version 1 and a 300-second payment timeout.
Capabilities
Use cases
- —Fetching a real-time or recent market quote for Walmart (WMT) stock
- —Integrating stock price lookups into an autonomous agent workflow without API key management
- —Pay-per-call market data retrieval settled on-chain via USDC on Base
Fit
Best for
- —Agents needing ad-hoc stock quotes without subscription commitments
- —Developers prototyping x402-based finance data pipelines
- —Low-volume, on-demand market data consumers
Not for
- —High-frequency trading requiring sub-millisecond latency and bulk data
- —Users who need comprehensive historical OHLCV data or full order-book depth
- —Anyone without a Base-network USDC wallet
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/market/quote/WMT \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_token>"Endpoint
Quality
The endpoint is live and returns a valid x402 challenge, and pricing is clear ($0.02/request in USDC on Base). However, there is no OpenAPI schema, no documented request/response format, no example payloads, and all documentation pages are empty beyond a wallet-connect prompt. The actual content of the WMT quote response is unknown.
Warnings
- —No request or response schema is published — input format and output fields are unknown.
- —Documentation pages (/docs, /api, /pricing, /README) contain no substantive content.
- —It is unclear whether this returns real-time, delayed, or cached stock data, or what data source backs it.
- —The endpoint description is generic ('Premium API Access') and does not describe the WMT quote specifically.
Citations
- —Endpoint returns a 402 x402 challenge with maxAmountRequired 20000 in USDC on Base networkhttps://lowpaymentfee.com/api/v1/market/quote/WMT
- —Platform pricing is $0.02 per request with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/market/quote/WMT