x402basequality 0.30

Pay-per-call market quote endpoint for ticker MMM, settled in USDC on Base via x402.

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

What it does

This endpoint at lowpaymentfee.com provides a market quote for the ticker symbol "MMM" via a POST request. It is part of a broader suite of APIs offered by lowpaymentfee.com spanning data analytics, AI/ML inference, finance, crypto, and utility services — all priced at $0.02 per request with no API keys, no rate limits, and no commitments required.

The specific endpoint `/api/v1/market/quote/MMM` is live and responds with a standard x402 payment challenge. Payment is settled in USDC (USD Coin) on the Base network using the "exact" scheme. The maximum amount required per call is 20,000 base units of USDC, which equals $0.02 (USDC uses 6 decimals). The payment is directed to address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3` with a timeout of 300 seconds.

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 what fields the quote response contains. The endpoint path suggests it returns a market quote for the stock or asset with ticker "MMM" (3M Company on NYSE, or possibly another asset), but the exact response schema is unknown.

Capabilities

market-quotex402-paymentusdc-settlementbase-networkpay-per-callno-api-key

Use cases

  • —Fetching a real-time or near-real-time market quote for the MMM ticker
  • —Integrating pay-per-call financial data into an agent workflow without API key management
  • —Programmatic access to market quotes settled via crypto micropayments on Base

Fit

Best for

  • —Agents needing on-demand market quotes without subscription commitments
  • —Developers experimenting with x402 payment-gated APIs
  • —Low-volume or sporadic financial data lookups at $0.02 per call

Not for

  • —High-frequency trading requiring sub-second latency guarantees (no SLA documented)
  • —Users needing bulk historical market data (endpoint appears to serve single quotes)
  • —Anyone requiring detailed API documentation or guaranteed response schemas

Quick start

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

Endpoint

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

Quality

0.30/ 1.00

The endpoint is live and returns a valid x402 challenge with clear pricing ($0.02 USDC on Base). However, there is no OpenAPI schema, no documented request/response format, no examples, and all documentation pages are empty beyond a wallet-connect prompt. The actual content of the quote response is entirely unknown.

Warnings

  • —No API documentation available — /docs, /api, /pricing, and /README pages are all empty
  • —No OpenAPI or output schema provided; response format for the quote is unknown
  • —The ticker 'MMM' is not explicitly defined — it could refer to 3M Company or another asset
  • —This endpoint path (/api/v1/market/quote/MMM) does not appear in the site's listed API catalog, which may indicate it is undocumented or experimental

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-18 21:37:40Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-23

Agent access

JSONhttps://clawmart.sh/api/listings/KXEVrs
Pay-per-call market quote endpoint for ticker MMM, settled in USDC on Base via x402. — Clawmart · Clawmart