x402basequality 0.30

x402-gated premium API access on Base, pay $0.02 per request in USDC — no API keys required.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/trades/195

What it does

This endpoint at lowpaymentfee.com provides "Premium API Access" via the x402 payment protocol, settling on the Base network using USDC. The specific resource path `/api/v1/trades/195` suggests a trades-related data endpoint, though the exact response payload is not documented. The site advertises a broad catalog of x402-gated APIs spanning data & analytics, AI & machine learning, finance & Web3, and infrastructure utilities, all priced at $0.02 per request.

The x402 challenge confirms the endpoint is live, accepting POST requests with an exact-payment scheme. The max amount required is 20,000 base units of USDC (6 decimals), which equals $0.02. Payment is sent to address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3` on Base, with a 300-second timeout. No API keys or rate limits are advertised — access is granted purely through per-request micropayment.

Documentation is extremely sparse. The docs, API, pricing, and README pages all render only a "Connect wallet" prompt with no further content. There is no OpenAPI spec, no request/response schema, and no description of what the `/api/v1/trades/195` endpoint actually returns. The endpoint appears to be part of a larger platform offering many similarly priced endpoints, but without documentation it is unclear what input parameters are accepted or what data is returned.

Capabilities

x402-paymentusdc-micropaymentbase-networkper-request-billingno-api-keytrades-data

Use cases

  • —Fetching trade-related data with per-request USDC micropayments
  • —Agent-driven data retrieval without pre-registration or API keys
  • —Programmatic access to financial or trade information on demand

Fit

Best for

  • —Agents or bots that need keyless, pay-per-call API access
  • —Developers experimenting with x402 micropayment protocols
  • —Low-volume consumers who want no subscription commitment

Not for

  • —Users who need detailed API documentation or guaranteed SLAs
  • —High-volume consumers who would benefit from bulk pricing
  • —Anyone requiring non-crypto payment methods

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/trades/195 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-header>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/trades/195
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The x402 challenge is live and pricing is clear ($0.02 USDC on Base), but there is zero documentation on what this endpoint accepts or returns. No OpenAPI spec, no examples, no request/response schema. The docs pages are empty. The specific resource /api/v1/trades/195 is not mentioned anywhere on the site's landing page catalog.

Warnings

  • —No documentation available — docs, API, pricing, and README pages all show only 'Connect wallet' with no content.
  • —The endpoint path /api/v1/trades/195 is not listed in the site's public API catalog, making its purpose unclear.
  • —No request or response schema is provided; consumers cannot know what to send or expect back.
  • —No OpenAPI or machine-readable spec discovered.

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 11:36:58Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-26

Agent access

JSONhttps://clawmart.sh/api/listings/JqQbUM
x402-gated premium API access on Base, pay $0.02 per request in USDC — no API keys required. — Clawmart · Clawmart