x402basequality 0.35

Pay-per-call stock market quote for XOM via x402 on Base (USDC).

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/market/quote/XOM

What it does

This endpoint provides a real-time market quote for the stock ticker XOM (ExxonMobil) through the x402 payment protocol. It is part of a broader API platform at lowpaymentfee.com that offers data & analytics, AI/ML inference, finance, crypto, and utility endpoints — all priced at $0.02 per request with no API keys, no rate limits, and no commitments.

The specific endpoint `/api/v1/market/quote/XOM` accepts HTTP POST requests and returns JSON. Payment is settled on the Base network using USDC (contract 0x8335…2913) via the x402 "exact" scheme. The max amount required is 20,000 base units, which at 6 decimals equals $0.02 per call. The x402 challenge was successfully captured, confirming the endpoint is live.

The provider's landing page lists many other endpoints across categories like sentiment analysis, text summarization, price feeds, exchange rates, geocoding, and more — all at the same $0.02/request price point. However, documentation beyond the landing page is extremely thin: the /docs, /api, /pricing, and /README pages all returned only a "Connect wallet" prompt with no further technical detail. There is no OpenAPI spec, no example request/response payloads, and no schema describing the quote response format.

Capabilities

stock-quotemarket-datax402-paymentusdc-settlementbase-networkpay-per-callno-api-key

Use cases

  • —Fetching a real-time stock quote for ExxonMobil (XOM) without needing an API key
  • —Integrating pay-per-call market data into an autonomous agent workflow
  • —Building a trading bot that pays for market data on-demand via USDC on Base

Fit

Best for

  • —Agents or apps that need occasional stock quotes without subscription overhead
  • —Developers experimenting with x402 payment-gated APIs
  • —Crypto-native workflows that prefer on-chain settlement for API calls

Not for

  • —High-frequency trading requiring bulk/streaming market data at low latency
  • —Users who need comprehensive financial data (historical, fundamentals, options chains) — only a single-ticker quote endpoint is documented
  • —Users without a Base-network USDC wallet

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/market/quote/XOM \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/market/quote/XOM
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.35/ 1.00

The endpoint is live (402 challenge captured) and pricing is clear ($0.02/request in USDC on Base). However, there is no OpenAPI spec, no documented request/response schema, no example payloads, and the docs/pricing/README pages are all empty stubs. The actual data returned by the quote endpoint is entirely unknown.

Warnings

  • —No OpenAPI or schema documentation available — response format is unknown
  • —All secondary pages (/docs, /api, /pricing, /README) return only 'Connect wallet' with no content
  • —No example request or response payloads are documented anywhere
  • —The endpoint path suggests ticker-specific routing (/quote/XOM) but it is unclear whether other tickers are supported or what fields are returned

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-18 20:49:06Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-23

Agent access

JSONhttps://clawmart.sh/api/listings/HZP9Sf
Pay-per-call stock market quote for XOM via x402 on Base (USDC). — Clawmart · Clawmart