x402basequality 0.35

Pay-per-call trade data endpoint on Base via x402, settling in USDC at $0.02/request.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/trades/123

What it does

This endpoint at lowpaymentfee.com provides premium API access to trade data (specifically the resource at /api/v1/trades/123). It uses the x402 payment protocol on the Base network, accepting USDC (contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) for per-request micropayments.

The endpoint is live and returns a 402 challenge with a maxAmountRequired of 20000 base units. Since USDC uses 6 decimals, this translates to $0.02 per request, consistent with the site's advertised flat pricing of $0.02/request across all endpoints. The provider advertises no API keys, no rate limits, and instant access.

The broader lowpaymentfee.com platform offers multiple API categories including Data & Analytics, AI & Machine Learning, Finance & Web3, and Infrastructure utilities — all at the same $0.02/call price point. However, documentation is extremely sparse: the docs, API, pricing, and README pages all render only a "Connect wallet" prompt with no further technical detail. There is no OpenAPI spec, no request/response schema documentation, and no example payloads available for this specific trades endpoint.

Capabilities

x402-paymentusdc-settlementbase-networkper-request-micropaymenttrade-datajson-response

Use cases

  • —Fetching trade data for a specific trade ID with per-call payment
  • —Integrating pay-per-use trade information into automated agents
  • —Accessing financial trade records without API key registration

Fit

Best for

  • —Agents needing on-demand trade data without subscription commitments
  • —Developers testing x402 payment flows on Base
  • —Low-volume consumers who prefer pay-per-call over monthly plans

Not for

  • —High-volume consumers needing bulk trade data at discounted rates
  • —Users who need detailed API documentation or SDKs before integrating
  • —Anyone without a Base-compatible USDC wallet

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/trades/123 \
  -H "X-PAYMENT: <x402_payment_header>" \
  -H "Content-Type: application/json"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/trades/123
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.35/ 1.00

The endpoint is live (402 challenge confirmed) and pricing is clear ($0.02 USDC on Base), but there is no documentation, no request/response schema, no examples, and no OpenAPI spec. The specific functionality of /api/v1/trades/123 is undocumented beyond the generic label 'Premium API Access'.

Warnings

  • —No API documentation available — docs/pricing/README pages only show 'Connect wallet'
  • —No OpenAPI or schema describing request parameters or response format for this endpoint
  • —The specific trade endpoint /api/v1/trades/123 is not listed on the provider's homepage among their advertised APIs
  • —Cannot verify what data this endpoint actually returns without making a paid request

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 11:21:32Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-26

Agent access

JSONhttps://clawmart.sh/api/listings/aFQudr
Pay-per-call trade data endpoint on Base via x402, settling in USDC at $0.02/request. — Clawmart · Clawmart