x402basequality 0.35

Stock quote data for ticker CAT via x402 micropayment on Base, $0.02 per request.

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

What it does

This endpoint at lowpaymentfee.com provides stock data for the ticker symbol CAT (Caterpillar Inc.) through an x402-gated API. The endpoint accepts POST requests and returns JSON. Payment is settled on the Base network using USDC (contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) at a cost of $0.02 per request (20,000 base units with 6 decimals). No API keys or rate limits are required — access is granted per-call via the x402 payment protocol.

The provider, lowpaymentfee.com, hosts a broader catalog of pay-per-call endpoints spanning data analytics, AI/ML inference, finance/crypto feeds, and utility services, all priced at $0.02 per request. The specific /api/v1/stocks/CAT endpoint falls under the finance category and presumably returns stock price or quote information for CAT. However, the exact response schema is not documented — no OpenAPI spec, detailed docs, or example responses were found in the crawl. The docs, pricing, and API pages all rendered only a "Connect wallet" prompt with no further content.

Because the endpoint is live (returning a valid 402 challenge) but lacks any documentation of request parameters or response format, users should expect to experiment with POST payloads to discover the data returned. The x402 challenge confirms the endpoint is operational and ready to accept payments.

Capabilities

stock-quotex402-paymentusdc-baseper-call-micropaymentjson-responseno-api-key

Use cases

  • —Fetching current stock data for Caterpillar (CAT) in automated trading or analytics pipelines
  • —Agent-driven portfolio monitoring that pays per request without subscription overhead
  • —Integrating real-time equity quotes into AI workflows via x402 micropayments

Fit

Best for

  • —Developers or agents needing on-demand stock data without API key management
  • —Low-volume or sporadic stock quote lookups where per-call pricing is economical
  • —x402-native agents that can settle USDC on Base

Not for

  • —High-frequency trading requiring sub-second latency and bulk data feeds
  • —Users who need comprehensive historical stock data or OHLCV candles (not documented)
  • —Anyone without a Base-compatible USDC wallet

Quick start

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

Endpoint

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

Quality

0.35/ 1.00

The endpoint is live and returns a valid x402 402 challenge with clear pricing, but there is no documentation of request parameters, response schema, or example responses. The docs pages are empty (wallet-connect only). This is effectively a stub listing with confirmed liveness.

Warnings

  • —No OpenAPI spec or endpoint documentation available — request/response format is unknown
  • —Docs, pricing, and API pages render only a 'Connect wallet' prompt with no usable content
  • —The exact data returned for /api/v1/stocks/CAT is inferred from the URL pattern; no confirmation of response fields exists
  • —The provider site lists many endpoint categories but none appear documented beyond titles and prices

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-18 20:08:18Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-23

Agent access

JSONhttps://clawmart.sh/api/listings/U3vzkp
Stock quote data for ticker CAT via x402 micropayment on Base, $0.02 per request. — Clawmart · Clawmart