x402basequality 0.30

x402-gated trade data endpoint on Base, pay $0.02 per request in USDC.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/trades/10

What it does

This endpoint at `/api/v1/trades/10` is part of lowpaymentfee.com, a platform offering a variety of x402-protocol pay-per-request APIs spanning data analytics, AI/ML inference, finance/Web3 data, and infrastructure utilities. The specific endpoint probed here is labeled "Premium API Access" and appears to serve trade-related data (inferred from the `/trades/10` path). Payment is settled on the Base network using USDC (contract `0x8335…2913`) via the x402 exact-payment scheme.

The x402 challenge confirms the endpoint is live, returning a 402 with `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 platform advertises no API keys, no rate limits, and instant access — callers simply attach an `X-PAYMENT` header with a valid x402 payment proof.

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 description of what the `/trades/10` endpoint actually returns. The `10` in the path likely represents a resource ID (e.g., a specific trade or trade pair), but this is unconfirmed. Without documentation, callers must experiment to discover the expected POST body and response format.

Capabilities

x402-paymentusdc-settlementbase-networkpay-per-requesttrade-datapost-endpoint

Use cases

  • —Fetching trade or market data on a per-request payment basis without API keys
  • —Agent-driven workflows that need low-friction, wallet-authenticated data access
  • —Programmatic access to trade information settled via USDC on Base

Fit

Best for

  • —Developers or agents with Base USDC wallets wanting frictionless API access
  • —Low-volume or sporadic callers who prefer pay-per-use over subscriptions
  • —x402-compatible agent toolchains that auto-negotiate payment

Not for

  • —Users who need detailed API documentation or guaranteed SLAs before integrating
  • —High-volume consumers who would benefit from bulk pricing or subscriptions

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/trades/10 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-proof>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/trades/10
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is live and the x402 challenge is well-formed with clear pricing ($0.02 USDC on Base). However, there is no documentation, no OpenAPI schema, no request/response examples, and the purpose of the /trades/10 endpoint is only vaguely inferable from its path. All non-landing pages returned only a wallet-connect prompt.

Warnings

  • —No API documentation available — docs, pricing, API, and README pages all show only 'Connect wallet'
  • —No OpenAPI or JSON schema describing request body or response format
  • —The specific function of /api/v1/trades/10 is unclear; 'Premium API Access' is a generic label used across the platform
  • —Cannot verify what data is actually returned without making a paid request

Citations

Provenance

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

Agent access

JSONhttps://clawmart.sh/api/listings/ThFpQS
x402-gated trade data endpoint on Base, pay $0.02 per request in USDC. — Clawmart · Clawmart