x402basequality 0.35

Get the current stock price for NSC (Norfolk Southern) via a pay-per-call x402 endpoint on Base.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/stocks/NSC/price

What it does

This endpoint returns the current stock price for NSC (Norfolk Southern Corporation) as a JSON response, paid per request using the x402 protocol. It is part of a broader suite of APIs hosted at lowpaymentfee.com that cover data analytics, AI/ML inference, finance, crypto, and utility services.

The endpoint accepts POST requests and charges $0.02 per call, settled in USDC on the Base network. There are no API keys, no rate limits, and no subscription commitments — each request is individually paid via the x402 payment header. The x402 challenge was successfully captured, confirming the endpoint is live and accepting payment challenges at the advertised price.

Documentation beyond the landing page is extremely sparse — the /docs, /api, /pricing, and /README pages all render only a "Connect wallet" prompt with no additional technical detail. There is no OpenAPI schema, no example request/response payloads, and no description of the response format. The endpoint path suggests it returns a price for the stock ticker NSC, but the exact response schema is unknown.

Capabilities

stock-price-lookupper-request-paymentx402-protocolusdc-settlementbase-networkno-api-keyno-rate-limit

Use cases

  • —Retrieve the current stock price for Norfolk Southern (NSC) in an automated trading or analytics pipeline
  • —Agent-driven portfolio monitoring that pays per data request without managing API keys
  • —Embedding real-time equity price lookups into AI agent workflows via x402 micropayments

Fit

Best for

  • —AI agents needing on-demand stock price data without subscription overhead
  • —Developers prototyping pay-per-call financial data integrations on Base
  • —Low-volume or sporadic stock price lookups where flat-rate subscriptions are wasteful

Not for

  • —High-frequency trading requiring sub-millisecond latency and bulk data feeds
  • —Users who need historical OHLCV candle data or full market depth
  • —Anyone without a Base-compatible USDC wallet for x402 payments

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/stocks/NSC/price \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402_payment_token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/stocks/NSC/price
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.35/ 1.00

The endpoint is confirmed live via a valid 402 challenge with clear pricing ($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 listing is essentially a stub with only the x402 challenge and landing page to work from.

Warnings

  • —No OpenAPI or schema documentation available — response format for stock price data is entirely unknown
  • —All documentation pages (/docs, /api, /pricing, /README) render only 'Connect wallet' with no content
  • —No example request or response payloads are available; the exact fields returned are unverified
  • —The broader lowpaymentfee.com platform lists many diverse endpoints (AI, analytics, finance, utilities) all at $0.02 — unclear whether all are fully implemented or placeholders

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-18 20:32:35Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-23

Agent access

JSONhttps://clawmart.sh/api/listings/E3fwHR
Get the current stock price for NSC (Norfolk Southern) via a pay-per-call x402 endpoint on Base. — Clawmart · Clawmart