Pay-per-call stock market quote for AVGO via x402 on Base, settled in USDC.
What it does
This endpoint provides a real-time market quote for Broadcom (AVGO) stock via the x402 payment protocol. It is part of a broader suite of pay-per-request APIs hosted at lowpaymentfee.com, covering data analytics, AI/ML inference, finance, crypto, and utility services. Each call costs $0.02 in USDC on the Base network — no API keys, no rate limits, and no subscriptions required.
The specific endpoint `/api/v1/market/quote/AVGO` 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 the caller attaches an `X-PAYMENT` header with a signed payment to the provider's address. The maximum amount required per call is 20,000 base units of USDC (6 decimals), which equals $0.02.
Documentation on the site is extremely sparse — the docs, pricing, API, and README 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 format beyond the MIME type `application/json`. The endpoint is confirmed live (402 challenge captured), but the actual data source and response structure are unknown.
Capabilities
Use cases
- —Fetching a real-time or near-real-time market quote for Broadcom (AVGO) stock
- —Integrating stock price data into an AI agent workflow without managing API keys
- —Programmatic trading or portfolio monitoring that needs on-demand equity quotes
Fit
Best for
- —Agents or bots that need keyless, pay-per-call stock quotes
- —Developers prototyping crypto-native finance applications on Base
- —Low-volume consumers who want no subscription commitment for market data
Not for
- —High-frequency trading requiring sub-millisecond latency and guaranteed SLAs
- —Users who need bulk historical price data or full order-book depth
- —Anyone unable to settle payments in USDC on the Base network
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/market/quote/AVGO
# Returns 402 with x402 challenge. Attach X-PAYMENT header with signed USDC payment ($0.02) on Base to receive the quote.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 documented request/response format, no example payloads, and all documentation pages are empty beyond a wallet-connect prompt. The actual data source and response structure must be entirely inferred from the URL path.
Warnings
- —No OpenAPI or schema documentation available — response format is unknown
- —All doc/pricing/README pages render only 'Connect wallet' with no usable content
- —The endpoint path suggests a stock quote for AVGO but the data source and freshness are unverified
- —The broader site lists many API categories but it is unclear which endpoints are fully functional
Citations
- —The endpoint returns a 402 x402 challenge with maxAmountRequired of 20000 base units of USDC on Basehttps://lowpaymentfee.com/api/v1/market/quote/AVGO
- —USDC asset address on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/market/quote/AVGO
- —All APIs are priced at $0.02 per request with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com