Get the current stock price for TXN (Riskified) via x402 micropayment on Base.
What it does
This endpoint returns stock price data for the ticker TXN, served by lowpaymentfee.com through the x402 payment protocol. The endpoint accepts POST requests and requires an X-PAYMENT header containing a valid x402 payment token. Payment is settled in USDC on the Base network at $0.02 per request (maxAmountRequired of 20,000 base units with 6 decimals = $0.02).
The provider, lowpaymentfee.com, offers a broad catalog of pay-per-call APIs spanning data analytics, AI/ML inference, finance/crypto market data, and utility services — all priced uniformly at $0.02 per request. No API keys or rate limits are advertised; access is gated purely by x402 micropayment. The specific endpoint `/api/v1/stocks/TXN/price` falls under the finance category and is designed to return real-time or near-real-time stock price information for the TXN ticker symbol.
Documentation is extremely sparse — the docs, pricing, and API pages all render only a "Connect wallet" prompt with no further technical detail. There is no OpenAPI spec, no response schema, and no example payloads available from the crawl. The endpoint is confirmed live (returns a proper 402 challenge), but the actual response format after successful payment is unknown.
Capabilities
Use cases
- —Fetching the current stock price for TXN in an automated trading or monitoring pipeline
- —Integrating real-time equity price data into an AI agent workflow without managing API keys
- —Building a portfolio tracker that pays per request with USDC on Base
Fit
Best for
- —Agents or bots that need on-demand stock prices without subscription commitments
- —Developers who prefer crypto-native pay-per-call billing over traditional API key management
- —Low-volume or sporadic stock price lookups where $0.02/request is cost-effective
Not for
- —High-frequency trading requiring sub-millisecond latency and bulk pricing
- —Users who need historical OHLCV data or full market depth (no evidence this endpoint provides that)
- —Anyone without a Base-network USDC wallet
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/stocks/TXN/price \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_token>"Endpoint
Quality
The endpoint is confirmed live via a valid 402 challenge, and pricing is clear ($0.02 USDC on Base). However, there is no OpenAPI spec, no response schema, no example request/response, and the documentation pages are empty beyond a wallet-connect prompt. The actual data returned after payment is entirely unknown.
Warnings
- —No OpenAPI or response schema available — the structure of a successful response is unknown.
- —Documentation pages (/docs, /pricing, /api, /README) all render only 'Connect wallet' with no technical content.
- —The ticker 'TXN' could refer to different securities; the provider does not clarify which exchange or instrument is covered.
- —No evidence of data source, update frequency, or accuracy guarantees for the stock price data.
Citations
- —Endpoint returns HTTP 402 with x402 challenge, confirming it is livehttps://lowpaymentfee.com/api/v1/stocks/TXN/price
- —maxAmountRequired is 20000 base units of USDC (0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) on Base, equaling $0.02https://lowpaymentfee.com/api/v1/stocks/TXN/price
- —Provider advertises $0.02/request uniform pricing, no API keys, no rate limitshttps://lowpaymentfee.com
- —Docs, pricing, API, and README pages render only 'Connect wallet' with no further contenthttps://lowpaymentfee.com/docs