Pay-per-call stock market quote for QCOM via x402 on Base, settled in USDC.
What it does
This endpoint provides a stock market quote for Qualcomm (QCOM) through the x402 payment protocol. It is part of a broader suite of APIs hosted at lowpaymentfee.com that span data analytics, AI/ML inference, finance, crypto, and utility services. Each call costs $0.02 in USDC on the Base network, with no API keys, rate limits, or subscriptions required.
The specific endpoint `/api/v1/market/quote/QCOM` accepts HTTP POST requests and returns JSON. Payment is handled inline via the x402 protocol: the server responds with a 402 challenge containing the USDC asset address on Base (`0x8335…2913`) and a `maxAmountRequired` of 20,000 base units (i.e., $0.02 given USDC's 6 decimals). An x402-compatible client attaches the `X-PAYMENT` header with a signed payment to the specified `payTo` address, and the server returns the quote data.
Documentation on the site is extremely sparse — the docs, pricing, and API pages all render only a "Connect wallet" prompt with no further content. There is no OpenAPI schema, no example request/response payloads, and no description of the response fields. The endpoint is confirmed live (402 challenge captured), but the actual shape and content of the quote response must be inferred from the endpoint path alone.
Capabilities
Use cases
- —Fetching a real-time or recent stock quote for Qualcomm (QCOM) without needing an API key or subscription
- —Integrating pay-per-call market data into an autonomous agent workflow on Base
- —Prototyping financial dashboards that settle API costs in USDC on-chain
Fit
Best for
- —Agents or bots that need on-demand stock quotes with crypto-native payment
- —Developers exploring x402 protocol integrations with financial data
- —Low-volume or sporadic market data consumers who want to avoid subscriptions
Not for
- —High-frequency trading requiring sub-millisecond latency and bulk data
- —Users who need broad market coverage across many tickers in a single call (only QCOM path confirmed)
- —Teams requiring detailed API documentation and SLA guarantees
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/market/quote/QCOM
# Returns 402 with x402 challenge. Use an x402-compatible client to attach
# the X-PAYMENT header with a signed USDC payment of $0.02 on Base.Endpoint
Quality
The endpoint is confirmed live via a valid 402 x402 challenge, and pricing is clear ($0.02 USDC on Base). However, there is no OpenAPI schema, no example request or response, and the documentation pages are effectively empty. The actual response format is unknown, making this largely a stub listing.
Warnings
- —No API documentation available — docs, pricing, and API pages all show only 'Connect wallet' with no content.
- —No OpenAPI or output schema provided; response structure for the quote endpoint is unknown.
- —Only the QCOM ticker path was probed; it is unclear whether other tickers are supported at the same path pattern.
- —The provider site lists many diverse API categories (AI, analytics, crypto, utilities) all at $0.02 — the breadth and quality of each is unverified.
Citations
- —The endpoint returns a 402 x402 challenge with maxAmountRequired of 20000 base units of USDC on Basehttps://lowpaymentfee.com/api/v1/market/quote/QCOM
- —USDC asset address on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/market/quote/QCOM
- —All APIs are priced at $0.02 per request with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com