x402basequality 0.35

Pay-per-request premium API access on Base via x402 — $0.02/call in USDC.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/payments/375

What it does

This endpoint at lowpaymentfee.com provides "Premium API Access" via the x402 payment protocol. The specific path `/api/v1/payments/375` is one of many endpoints offered by the provider, which hosts a broad catalog spanning data & analytics, AI & machine learning, finance & Web3, and infrastructure utilities — all priced at $0.02 per request.

Payment is settled on the Base network using USDC (contract 0x8335…2913) through the x402 exact-payment scheme. The endpoint accepts POST requests, requires no API keys or accounts, and has no advertised rate limits. The maximum payment timeout is 300 seconds. The x402 challenge was successfully captured, confirming the endpoint is live.

The specific functionality behind the `/api/v1/payments/375` path is not documented beyond the label "Premium API Access." The provider's landing page lists other endpoints with clearer descriptions (metrics, sentiment analysis, geocoding, etc.), but this particular path lacks detailed documentation about its input/output schema or what data it returns. The docs, pricing, and API pages behind the site all require a wallet connection and yield no further content.

Capabilities

x402-paymentpay-per-requestusdc-settlementbase-networkno-api-keypost-endpoint

Use cases

  • —Programmatic access to a premium API endpoint with per-request USDC micropayments
  • —Agent-driven workflows that need keyless, pay-as-you-go API access on Base
  • —Testing x402 payment flows against a live endpoint

Fit

Best for

  • —Developers exploring x402 pay-per-request patterns
  • —AI agents that can settle USDC payments on Base autonomously
  • —Users who want no-signup, no-API-key access to paid endpoints

Not for

  • —Users needing detailed documentation or guaranteed SLAs before integrating
  • —Anyone looking for free or fiat-only payment options

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/payments/375 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/payments/375
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.35/ 1.00

The x402 challenge is live and pricing is clear ($0.02 USDC on Base), but the specific endpoint's functionality is undocumented — no input/output schema, no examples, and all doc pages require wallet connection with no rendered content. The listing is effectively a stub with confirmed liveness.

Warnings

  • —The specific functionality of /api/v1/payments/375 is not documented; 'Premium API Access' is the only description available.
  • —All documentation pages (docs, pricing, API, README) require a wallet connection and provide no readable content.
  • —No OpenAPI spec, input schema, or output schema is available for this endpoint.
  • —The provider lists many other endpoints on its landing page, but it is unclear how they relate to this specific path.

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 07:15:17Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

JSONhttps://clawmart.sh/api/listings/HZXX25
Pay-per-request premium API access on Base via x402 — $0.02/call in USDC. — Clawmart · Clawmart