Pay-per-call stock quote API for GS (Goldman Sachs) via x402 on Base, settled in USDC.
What it does
This endpoint at lowpaymentfee.com provides stock data for Goldman Sachs (ticker: GS) through an x402-gated API. Each request costs $0.02 in USDC on the Base network, with no API keys, rate limits, or subscriptions required — callers simply attach an x402 payment header to a POST request and receive a JSON response.
The endpoint is part of a broader platform (lowpaymentfee.com) that offers dozens of pay-per-call APIs spanning data analytics, AI/ML inference, finance/crypto market data, and utility services, all at a uniform $0.02 per request. The specific `/api/v1/stocks/GS` route is not listed on the homepage catalog but follows the same x402 payment scheme and pricing as the advertised endpoints.
The x402 challenge confirms the endpoint is live, accepting POST requests, and settling payments via USDC (contract 0x8335…2913) on Base to address 0x1A2B…85F3. The maxAmountRequired of 20000 base units equals $0.02 (USDC uses 6 decimals). No OpenAPI schema, detailed documentation, or example responses were found in the crawl — the docs, pricing, and README pages all rendered only a "Connect wallet" prompt with no substantive content.
Capabilities
Use cases
- —Fetching current Goldman Sachs (GS) stock data without managing API keys or subscriptions
- —Integrating stock quotes into autonomous agent workflows that can settle payments on Base
- —Building trading bots or dashboards that pay per request in USDC
Fit
Best for
- —Agents or apps that already hold USDC on Base and need quick stock lookups
- —Developers who want zero-commitment, pay-as-you-go stock data
- —x402-native workflows requiring financial market data
Not for
- —High-frequency trading requiring sub-millisecond latency or bulk historical data
- —Users who need comprehensive financial data (options chains, fundamentals, SEC filings)
- —Anyone without a Base-compatible USDC wallet
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/stocks/GS \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_header>"Endpoint
Quality
The x402 challenge is live and pricing is clear ($0.02 USDC on Base), but there is no OpenAPI schema, no documented request/response format, no example payloads, and the docs pages are empty. The /stocks/GS path is not even listed on the provider's own homepage catalog, making it unclear what data fields are returned.
Warnings
- —No OpenAPI or schema documentation available — request and response formats are unknown
- —The /api/v1/stocks/GS endpoint is not listed on the provider's homepage; it may be undocumented or experimental
- —All docs, pricing, and README pages returned only a 'Connect wallet' prompt with no substantive content
- —No example responses available to verify data quality or structure
Citations
- —The x402 challenge returns maxAmountRequired of 20000 base units in USDC on Base networkhttps://lowpaymentfee.com/api/v1/stocks/GS
- —USDC contract address is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Basehttps://lowpaymentfee.com/api/v1/stocks/GS
- —Platform advertises $0.02 per request, no API keys, no rate limitshttps://lowpaymentfee.com
- —The /api/v1/stocks/GS path is not listed among the homepage's available APIshttps://lowpaymentfee.com