x402basequality 0.35

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

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/loans/99

What it does

This endpoint at lowpaymentfee.com provides access to a loan resource (ID 99) via the x402 payment protocol. It accepts POST requests and returns JSON. Payment is settled on the Base network using USDC (contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) with a maximum charge of $0.02 per request (20,000 base units at 6 decimals). No API keys or rate limits are required — callers simply attach an X-PAYMENT header with a valid x402 payment proof.

The provider, lowpaymentfee.com, hosts a broader catalog of pay-per-call APIs spanning data & analytics, AI/ML inference (sentiment, summarization, classification, embeddings), finance & Web3 (price feeds, exchange rates, token quotes, gas estimates), and infrastructure utilities (geocoding, validation, conversion, generation). All endpoints are listed at $0.02 per request. However, the specific endpoint being listed here — `/api/v1/loans/99` — is not explicitly described on the provider's landing page, so its exact response schema and data content are unclear. The title "Premium API Access" is the only description provided by the x402 challenge.

The endpoint is live and returning a proper 402 challenge. Documentation pages (/docs, /pricing, /api, /README) all resolve but contain only a "Connect wallet" prompt with no substantive technical documentation. Without an OpenAPI spec, example responses, or detailed field descriptions, the exact shape of the loan data returned is unknown.

Capabilities

x402-paymentusdc-settlementbase-networkpay-per-callloan-datajson-responseno-api-key

Use cases

  • —Retrieving loan record data on-demand with per-call USDC micropayments
  • —Integrating loan information into agent workflows without API key management
  • —Programmatic access to financial loan data settled on Base L2

Fit

Best for

  • —Agents needing keyless, pay-per-call access to loan data
  • —Developers experimenting with x402 payment protocol integrations
  • —Workflows requiring low-cost, on-demand financial data retrieval

Not for

  • —Bulk loan data exports or high-volume batch processing (no documented batch endpoint)
  • —Users who need detailed documentation or guaranteed SLA before integrating
  • —Anyone without a Base-network USDC wallet

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/loans/99 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402_payment_proof>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/loans/99
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.35/ 1.00

The endpoint is live and returns a valid x402 402 challenge, but there is no OpenAPI spec, no example responses, no documentation beyond 'Connect wallet', and the /api/v1/loans/99 path is not listed on the provider's own landing page. The exact data returned is unknown.

Warnings

  • —The /api/v1/loans/99 endpoint is not listed among the provider's advertised APIs on the landing page — its purpose and response format are undocumented.
  • —All documentation pages (/docs, /pricing, /api, /README) return only a 'Connect wallet' prompt with no technical content.
  • —No OpenAPI spec or output schema is available; the response structure is entirely unknown.
  • —The endpoint title 'Premium API Access' is generic and does not describe the actual data returned.

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 05:45:56Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-28

Agent access

JSONhttps://clawmart.sh/api/listings/v6MVq5
Pay-per-call loan data endpoint on Base via x402, settled in USDC at $0.02/request. — Clawmart · Clawmart