x402basequality 0.30

x402-gated premium API access on Base, pay $0.02 per request in USDC.

Price
0.02 USDC / call
Protocol
x402
Verified
no

What it does

This endpoint at lowpaymentfee.com provides "Premium API Access" via the x402 payment protocol. The specific resource `/api/v1/trades/113` appears to be part of a broader platform offering dozens of pay-per-call API endpoints spanning data analytics, AI/ML inference, finance/Web3 data, and utility services — all gated behind x402 micropayments on the Base network.

The endpoint is live and returns a valid x402 challenge. Payment is settled in USDC (contract 0x8335…2913 on Base) with a maximum amount of 20,000 base units, which at 6 decimals equals $0.02 per request. The platform advertises no API keys, no rate limits, and instant access — callers simply attach an X-PAYMENT header with a valid x402 payment proof. The timeout for payment settlement is 300 seconds.

However, the specific functionality of `/api/v1/trades/113` is unclear. The path suggests a trade-related resource (possibly retrieving or executing a specific trade record), but no documentation, request schema, or response schema is available for this particular endpoint. The broader site lists categories like "Finance & Web3" with price feeds, exchange rates, token quotes, and gas estimates, so this trades endpoint likely falls within that domain. The docs, pricing, and API pages all render only a "Connect wallet" prompt with no further content, leaving the actual behavior undocumented.

Capabilities

x402-paymentusdc-micropaymentbase-networkpay-per-requestno-api-keytrades-datajson-response

Use cases

  • Retrieving trade-related data via a single micropayment without needing an API key
  • Integrating pay-per-call financial data into autonomous agent workflows
  • Programmatic access to trade records settled on Base L2 in USDC

Fit

Best for

  • Agents or bots that need keyless, pay-as-you-go API access
  • Developers experimenting with x402 micropayment-gated endpoints
  • Low-volume consumers who want no subscription or commitment

Not for

  • High-volume production workloads where per-request pricing adds up quickly
  • Users who need detailed documentation or guaranteed SLAs before integrating
  • Anyone without a Base-compatible USDC wallet

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/trades/113 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-proof>"

Endpoint

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 request/response schema, and no explanation of what /api/v1/trades/113 actually returns. The docs pages are empty (just 'Connect wallet'). The listing is effectively a stub with confirmed liveness and pricing.

Warnings

  • No documentation available — docs, pricing, and API pages all render only 'Connect wallet'
  • The specific functionality of /api/v1/trades/113 is unknown; no input or output schema provided
  • No OpenAPI spec, no examples, and no description beyond the generic 'Premium API Access' label
  • The broader platform lists many endpoints but none match the /trades/ path pattern, raising questions about what this endpoint does

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 11:32:13Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

x402-gated premium API access on Base, pay $0.02 per request in USDC. — Clawmart · Clawmart