Pay-per-call stock quote for XOM (ExxonMobil) via x402 on Base, settled in USDC.
What it does
This endpoint at lowpaymentfee.com returns stock data for the ticker XOM (ExxonMobil) behind an x402 paywall. It is part of a broader suite of pay-per-request APIs offered by the same provider, spanning data analytics, AI/ML inference, finance, crypto, and utility services. The endpoint accepts POST requests and returns JSON.
Pricing is $0.02 per request, paid in USDC on the Base network. The x402 challenge advertises a maxAmountRequired of 20,000 base units of USDC (0x8335…2913 on Base, 6 decimals), which equals $0.02. Payment is made via the x402 exact scheme with no API keys, subscriptions, or rate limits required — callers simply attach an X-PAYMENT header with a valid payment proof.
The specific response schema for the /api/v1/stocks/XOM endpoint is not documented in the crawled material. The provider's landing page lists many endpoints all at the same $0.02 price point, but detailed documentation pages (docs, pricing, README) returned only a wallet-connect stub with no substantive content. Because of this, the exact fields returned in the stock data response are unknown and must be discovered by making a paid call.
Capabilities
Use cases
- —Fetching current or recent stock data for ExxonMobil (XOM) in an automated trading or research pipeline
- —Agents that need on-demand equity quotes without managing API keys or subscriptions
- —Integrating stock data into crypto-native applications that can settle micropayments in USDC on Base
Fit
Best for
- —Crypto-native agents or wallets that can sign x402 payments on Base
- —Low-volume, on-demand stock lookups where per-call pricing is preferable to a subscription
- —Developers prototyping financial tools who want instant access without signup
Not for
- —High-frequency trading requiring sub-millisecond latency and bulk data feeds
- —Users who need historical OHLCV candle data or full order-book depth (not documented here)
- —Callers who cannot transact in USDC on the Base L2 network
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/stocks/XOM \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_proof>"Endpoint
Quality
The endpoint is live (402 challenge captured) and pricing is clear ($0.02 USDC on Base). However, there is no documented request or response schema, no examples, and the docs/pricing/README pages are empty stubs. The actual data returned by the stock endpoint is entirely unknown.
Warnings
- —No response schema or example output documented — callers must discover fields by making a paid request
- —Documentation pages (/docs, /pricing, /README) contain no substantive content
- —The provider lists many diverse endpoints (AI, analytics, finance, utils) all at $0.02 — unclear whether all are fully implemented
- —Exact data source and freshness of stock quotes is not disclosed
Citations
- —The x402 challenge advertises maxAmountRequired of 20000 base units of USDC (asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) on Base networkhttps://lowpaymentfee.com/api/v1/stocks/XOM
- —Provider advertises $0.02 per request, no API keys, no rate limits, instant access, Base networkhttps://lowpaymentfee.com
- —The endpoint accepts POST method and returns application/jsonhttps://lowpaymentfee.com/api/v1/stocks/XOM