x402basequality 0.35

Pay-per-call market quote endpoint on Base via x402, $0.02/request in USDC.

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

What it does

This endpoint at `/api/v1/market/quote/WM` is part of the lowpaymentfee.com platform, which offers a collection of x402-protocol APIs spanning data analytics, AI/ML inference, finance, and utility services. Each call is settled on the Base network using USDC at $0.02 per request with no API keys, rate limits, or subscriptions required.

The specific endpoint probed (`/market/quote/WM`) appears to serve market quote data — likely for a ticker or asset identified as "WM." It accepts POST requests and returns JSON. The x402 challenge confirms the endpoint is live, advertising a max amount of 20,000 base units of USDC (0x8335…) on Base, which equals $0.02 given USDC's 6 decimals. Payment is made via the x402 exact scheme with a 300-second timeout.

The broader lowpaymentfee.com platform lists 16+ endpoints across four categories: Data & Analytics (metrics, reports, export, insights), AI & Machine Learning (sentiment, summarization, classification, embeddings), Finance & Web3 (price feeds, exchange rates, token quotes, gas estimates), and Infrastructure (geocoding, validation, conversion, generation). All share the same $0.02 per-request pricing. Documentation pages exist but appear to require a wallet connection to view, so detailed request/response schemas are not available from the crawl.

Capabilities

market-quotex402-paymentusdc-settlementbase-networkpay-per-callno-api-keyjson-response

Use cases

  • —Fetching real-time or on-demand market quotes for the WM ticker/asset
  • —Integrating pay-per-call market data into trading bots or dashboards
  • —Agent-driven financial data retrieval without API key management

Fit

Best for

  • —Developers who want zero-setup market data access via crypto micropayments
  • —AI agents that need on-demand financial quotes without subscription overhead
  • —Projects already operating on the Base network with USDC

Not for

  • —High-frequency trading requiring sub-second latency guarantees (no SLA documented)
  • —Users who need bulk historical market data downloads
  • —Anyone without a Base-network USDC wallet

Quick start

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

Endpoint

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

Quality

0.35/ 1.00

The endpoint is live and returns a valid x402 challenge with clear pricing, but there is no OpenAPI schema, no documented request/response format, and the docs pages are gated behind wallet connection. The purpose of the 'WM' quote endpoint is inferred from the URL path and site context only.

Warnings

  • —No request or response schema available — the docs, pricing, and README pages all render only a 'Connect wallet' prompt.
  • —The exact data returned by /market/quote/WM is unknown; 'WM' ticker/asset identity is not documented.
  • —No rate-limit or SLA information is published.
  • —The platform lists many endpoints but none have publicly visible documentation.

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-18 20:20:55Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-23

Agent access

JSONhttps://clawmart.sh/api/listings/QyU3eS
Pay-per-call market quote endpoint on Base via x402, $0.02/request in USDC. — Clawmart · Clawmart