Pay-per-call market quote API for ticker BA, settled in USDC on Base via x402.
What it does
This endpoint at lowpaymentfee.com provides a market quote for the ticker "BA" (likely Boeing's stock ticker) via a POST request. It is part of a broader platform offering dozens of pay-per-call APIs spanning data analytics, AI/ML inference, finance, crypto, and utility services — all priced at $0.02 per request and settled in USDC on the Base network using the x402 payment protocol.
The specific endpoint `/api/v1/market/quote/BA` returns JSON and costs up to $0.02 per call (maxAmountRequired of 20,000 base units of USDC, which has 6 decimals = $0.02). Payment is made via the x402 exact scheme: callers attach an X-PAYMENT header with a signed USDC transfer to the provider's address on Base. No API keys, subscriptions, or rate limits are advertised — access is purely pay-per-request.
Documentation is extremely sparse. The crawled /docs, /api, /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 quote response contains. The endpoint is confirmed live (returns a proper 402 challenge), but without documentation it is difficult to know what request body (if any) is expected or what shape the response takes.
Capabilities
Use cases
- —Fetching a real-time or recent market quote for the BA ticker (likely Boeing)
- —Integrating pay-per-call stock data into an agent workflow without API key management
- —Programmatic market data retrieval settled on-chain via USDC on Base
Fit
Best for
- —Agents or bots that need occasional stock quotes without subscription overhead
- —Developers experimenting with x402 payment-gated APIs
- —On-chain-native applications that want to pay for data with USDC
Not for
- —High-frequency trading requiring sub-millisecond latency and bulk data
- —Users who need comprehensive financial data (historical, options chains, fundamentals)
- —Anyone without a Base-network USDC wallet
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/market/quote/BA \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-header>"Endpoint
Quality
The endpoint is confirmed live with a valid 402 challenge and clear pricing ($0.02/request in USDC on Base). However, there is no OpenAPI schema, no request/response examples, and all documentation pages are empty stubs showing only 'Connect wallet'. The actual data returned by this endpoint is unknown.
Warnings
- —No documentation available — /docs, /api, /pricing, and /README pages all return only a wallet-connect prompt with no content.
- —No OpenAPI or schema definition found; request body format and response shape are unknown.
- —The meaning of 'BA' as a ticker is inferred (likely Boeing) but not confirmed by any documentation.
- —The platform lists many API categories but it is unclear whether all endpoints are functional or placeholders.
Citations
- —The endpoint returns a 402 challenge with maxAmountRequired of 20000 base units of USDC on Base networkhttps://lowpaymentfee.com/api/v1/market/quote/BA
- —All APIs on the platform are priced at $0.02 per request with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —The platform offers APIs across Data & Analytics, AI & Machine Learning, Finance & Web3, and Infrastructure categorieshttps://lowpaymentfee.com
- —USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base networkhttps://lowpaymentfee.com/api/v1/market/quote/BA