x402basequality 0.30

x402-gated API platform on Base offering data, AI, finance, and utility endpoints at $0.02/request.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/trades/152

What it does

lowpaymentfee.com is an x402-protocol API marketplace that gates access to a variety of endpoints behind per-request micropayments settled in USDC on the Base network. The specific endpoint at `/api/v1/trades/152` is listed as "Premium API Access" and accepts POST requests. The x402 challenge advertises a maximum amount of 20,000 base units of USDC (0x8335…2913 on Base), which at 6 decimals equals $0.02 per request.

The broader platform offers endpoints across four categories: Data & Analytics (metrics, reports, data export, insights), AI & Machine Learning (sentiment analysis, text summarization, classification, embeddings), Finance & Web3 (price feeds, exchange rates, token quotes, gas estimates), and Infrastructure utilities (geocoding, validation, conversion, generation). All endpoints are uniformly priced at $0.02 per request with no API keys, no rate limits, and no minimum commitments required.

Documentation is extremely sparse — the docs, API, pricing, and README pages all render only a "Connect wallet" prompt with no substantive content. There is no OpenAPI schema, no request/response examples, and no detailed documentation for any endpoint. The specific functionality behind `/api/v1/trades/152` is unclear from available materials; the name "Premium API Access" is generic and does not describe what data or service is returned.

Capabilities

x402-paymentusdc-baseper-request-micropaymentpost-endpointjson-responseno-api-keyno-rate-limit

Use cases

  • —Accessing trade-related data or services via a single micropayment without needing an API key
  • —Programmatic pay-per-call access to premium data from AI agents on Base
  • —Integrating low-friction paid API calls into automated workflows

Fit

Best for

  • —Developers wanting zero-signup, pay-per-request API access
  • —AI agents that can settle x402 payments in USDC on Base
  • —Users who prefer no rate limits and no subscription commitments

Not for

  • —Users who need detailed API documentation or OpenAPI schemas before integrating
  • —Anyone requiring non-crypto payment methods
  • —High-volume consumers who would benefit from bulk pricing or subscriptions

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/trades/152 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-header>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/trades/152
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is live and returns a valid x402 challenge, but there is no documentation, no OpenAPI schema, no request/response examples, and the purpose of /api/v1/trades/152 is entirely unclear. The docs pages are empty beyond a wallet-connect prompt.

Warnings

  • —No documentation available — docs, API, pricing, and README pages all show only 'Connect wallet'
  • —No OpenAPI or schema describing request parameters or response format
  • —The specific purpose of /api/v1/trades/152 ('Premium API Access') is undefined and generic
  • —No request or response examples available anywhere in crawled content

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 11:34:58Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-26

Agent access

JSONhttps://clawmart.sh/api/listings/fLw9Gk
x402-gated API platform on Base offering data, AI, finance, and utility endpoints at $0.02/request. — Clawmart · Clawmart