Market quote endpoint for MA (likely stock ticker) via x402 micropayment on Base network at $0.02/request.
What it does
This endpoint at lowpaymentfee.com provides market quote data for the ticker "MA" (likely Mastercard Inc. or a similar financial instrument). It is part of a broader platform offering finance, analytics, AI, and utility APIs, all accessible via the x402 payment protocol on the Base network using USDC.
The endpoint accepts POST requests and returns JSON. Payment is handled inline via the X-PAYMENT header using the x402 exact scheme — no API keys, accounts, or rate limits are required. The cost per request is $0.02 (20,000 base units of USDC with 6 decimals). The platform advertises instant access with no minimums or commitments.
The specific endpoint path `/api/v1/market/quote/MA` is not listed on the homepage's available APIs section (which shows `/api/v1/finance/prices`, `/api/v1/crypto/quotes`, etc.), but the x402 challenge confirms it is live and accepting payment. Documentation pages beyond the landing page returned only a "Connect wallet" prompt with no further technical detail, so the exact request body schema and response format are unknown.
Capabilities
Use cases
- —Fetching real-time or recent market quotes for the MA ticker
- —Integrating pay-per-call financial data into trading bots or dashboards
- —Agent-driven portfolio monitoring without managing API keys
Fit
Best for
- —Developers needing quick, keyless access to market quotes
- —AI agents that can settle x402 payments on Base
- —Low-volume or sporadic financial data lookups where subscriptions are overkill
Not for
- —High-frequency trading requiring sub-millisecond latency and bulk data
- —Users without a Base-network USDC wallet
- —Anyone needing comprehensive historical market data or full order book depth
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/market/quote/MA \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_token>"Endpoint
Quality
The endpoint is confirmed live via a valid 402 challenge, but there is no documentation on request/response schemas, no OpenAPI spec, and the docs pages are empty. The specific endpoint path isn't even listed on the homepage. Pricing and payment details are clear, but functional details are almost entirely unknown.
Warnings
- —No request body schema documented — input format is unknown
- —No response schema or example available
- —Endpoint path /api/v1/market/quote/MA not listed in the provider's own API catalog
- —All documentation pages beyond the landing page return only 'Connect wallet' with no content
- —Ticker 'MA' is inferred from the URL path; actual data source and coverage are unconfirmed
Citations
- —The endpoint returns a 402 challenge with maxAmountRequired of 20000 base units of USDC on Base networkhttps://lowpaymentfee.com/api/v1/market/quote/MA
- —Platform advertises $0.02/request pricing with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Basehttps://lowpaymentfee.com/api/v1/market/quote/MA