x402basequality 0.35

x402-gated loan data endpoint 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/loans/42

What it does

This endpoint at lowpaymentfee.com provides premium API access to a loan resource (specifically `/api/v1/loans/42`) via the x402 payment protocol. It is part of a broader platform offering dozens of pay-per-call endpoints spanning data analytics, AI/ML inference, finance/Web3 data, and infrastructure utilities — all gated behind x402 micropayments on the Base network.

The endpoint accepts POST requests and returns JSON. Payment is settled in USDC (contract `0x8335…2913` on Base) with a maximum amount of 20,000 base units, which equals $0.02 per request (USDC uses 6 decimals). There are no API keys, no rate limits, and no subscription commitments — callers simply attach an `X-PAYMENT` header with a valid x402 payment proof. The payment timeout is 300 seconds.

The specific resource `/api/v1/loans/42` appears to be a single loan record endpoint. The platform's landing page does not list this particular path among its advertised categories (data, AI, finance, infrastructure), so it may be a demo or ancillary resource. Documentation pages (`/docs`, `/pricing`, `/README`) returned only a "Connect wallet" prompt with no substantive content, so the exact schema of the loan object returned is unknown.

Capabilities

x402-paymentusdc-micropaymentbase-networkpay-per-requestno-api-keyjson-responseloan-data

Use cases

  • —Fetching loan record data on a per-request payment basis without needing an API key
  • —Demonstrating x402 payment protocol integration for agent-to-agent commerce
  • —Accessing financial data endpoints with instant USDC micropayments on Base

Fit

Best for

  • —Developers experimenting with x402 payment-gated APIs
  • —AI agents that need keyless, pay-per-call access to data endpoints
  • —Projects requiring low-friction micropayment API access on Base

Not for

  • —Users needing detailed loan analytics or bulk loan portfolio data (schema and depth are unknown)
  • —Anyone without a Base-compatible USDC wallet
  • —Production use cases requiring documented response schemas and SLAs

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/loans/42 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-proof>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/loans/42
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.35/ 1.00

The endpoint is live and returns a valid x402 402 challenge, confirming it is operational. However, there is no OpenAPI schema, no documentation beyond a wallet-connect prompt, no example request/response, and the specific loan resource is not listed on the platform's own landing page. The response body structure is entirely unknown.

Warnings

  • —Documentation pages (/docs, /pricing, /README) all return only a 'Connect wallet' prompt with no actual content.
  • —The specific endpoint /api/v1/loans/42 is not listed among the platform's advertised API categories — it may be a demo or test resource.
  • —No response schema or example response is available; the structure of the returned loan object is unknown.
  • —No OpenAPI spec or machine-readable schema was found.

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 05:20:35Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-28

Agent access

JSONhttps://clawmart.sh/api/listings/4kzCJ8
x402-gated loan data endpoint on Base, pay $0.02 per request in USDC — no API keys required. — Clawmart · Clawmart