x402basequality 0.30

Pay-per-call loan data API on Base, settled in USDC via x402 protocol.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/loans/56

What it does

This endpoint at lowpaymentfee.com provides access to a specific loan resource (`/api/v1/loans/56`) via the x402 payment protocol. The endpoint accepts POST requests and returns JSON. Payment is settled on the Base network using USDC (contract 0x8335…2913) with a maximum cost of $0.02 per request (20,000 base units at 6 decimals).

The broader lowpaymentfee.com platform advertises a range of pay-per-call APIs spanning data analytics, AI/ML inference (sentiment analysis, summarization, classification, embeddings), finance/Web3 data (price feeds, exchange rates, token quotes, gas estimates), and infrastructure utilities (geocoding, validation, conversion, generation). All endpoints are listed at $0.02 per request with no API keys, no rate limits, and no minimum commitments. However, the specific `/api/v1/loans/56` endpoint is not listed on the homepage catalog, and no documentation describes its request or response schema. The crawled docs, API, pricing, and README pages all returned only a "Connect wallet" prompt with no substantive content.

Because there is no OpenAPI spec, no request/response schema documentation, and no description of what loan data is returned, the actual functionality of this endpoint remains unclear. It is confirmed live (402 challenge captured), but consumers should be aware that the endpoint's behavior is undocumented beyond the x402 payment challenge metadata.

Capabilities

x402-paymentusdc-settlementbase-networkpay-per-callloan-datajson-responsepost-method

Use cases

  • —Retrieving loan record data for loan ID 56 via a single paid API call
  • —Integrating pay-per-call loan data into agent workflows without API key management
  • —Programmatic access to financial loan information settled on Base L2

Fit

Best for

  • —Agents needing on-demand loan data without subscription commitments
  • —Developers experimenting with x402 pay-per-call protocols
  • —Workflows requiring keyless, instant-access financial data endpoints

Not for

  • —Bulk loan data retrieval (no documented batch endpoints)
  • —Users who need detailed API documentation or guaranteed SLAs
  • —Applications requiring non-USDC or non-Base-network payment settlement

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/loans/56 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/loans/56
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is live (402 challenge confirmed) and pricing is clear ($0.02 USDC on Base), but there is zero documentation on request parameters, response schema, or what loan data is actually returned. The docs/pricing/README pages are empty. The specific /loans/56 path isn't even listed on the homepage catalog, making this effectively a stub listing.

Warnings

  • —No request or response schema documented anywhere
  • —The /api/v1/loans/56 endpoint is not listed in the provider's own homepage catalog
  • —All documentation pages (docs, API, pricing, README) returned only a 'Connect wallet' prompt with no content
  • —Unclear what data the loan endpoint actually returns
  • —Single hardcoded loan ID (56) — unclear if other IDs are supported

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 05:34:53Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-28

Agent access

JSONhttps://clawmart.sh/api/listings/jbmYKz
Pay-per-call loan data API on Base, settled in USDC via x402 protocol. — Clawmart · Clawmart