x402basequality 0.25

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

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/payments/296

What it does

This endpoint at lowpaymentfee.com provides "Premium API Access" via the x402 payment protocol. It is one of many endpoints offered by the lowpaymentfee.com platform, which hosts a variety of API categories including Data & Analytics, AI & Machine Learning, Finance & Web3, and Infrastructure utilities. All endpoints on the platform are priced at $0.02 per request, payable in USDC on the Base network with no API keys, rate limits, or commitments required.

The specific endpoint `/api/v1/payments/296` is labeled "Premium API Access" but the crawled material does not clarify what distinguishes it from the other listed endpoints or what data/functionality it returns. The x402 challenge confirms the endpoint is live, accepts POST requests, and requires payment of up to 20,000 base units of USDC (0.02 USD, since USDC uses 6 decimals) on Base to address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3`. The response MIME type is `application/json`.

No OpenAPI schema, detailed documentation, or example responses were found in the crawl. The docs, API, pricing, and README pages all rendered only a "Connect wallet" prompt with no substantive content. Without further documentation it is unclear what request body this endpoint expects or what JSON it returns upon successful payment.

Capabilities

x402-paymentusdc-basepay-per-requestjson-responseno-api-key

Use cases

  • —Accessing a pay-per-call API without needing API key registration
  • —Making micropayments for API services using USDC on Base
  • —Agent-driven programmatic API consumption with x402 payment flow

Fit

Best for

  • —Developers wanting zero-signup API access via crypto micropayments
  • —AI agents that can settle x402 payment challenges automatically
  • —Users who prefer pay-as-you-go pricing with no rate limits

Not for

  • —Users who need detailed API documentation before integrating
  • —Anyone requiring fiat-only payment methods
  • —High-volume consumers who need bulk/subscription pricing

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/payments/296 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/payments/296
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.25/ 1.00

The endpoint is live and returns a valid x402 challenge, but there is no documentation, no OpenAPI schema, no example requests or responses, and the purpose of this specific endpoint (/api/v1/payments/296) is entirely unclear. The docs pages are empty beyond a wallet-connect prompt.

Warnings

  • —No documentation available — docs, API, pricing, and README pages all render only 'Connect wallet' with no content.
  • —The specific functionality of /api/v1/payments/296 ('Premium API Access') is not described anywhere in the crawled material.
  • —No OpenAPI schema or example request/response bodies are available.
  • —This endpoint path (/api/v1/payments/296) does not appear in the site's own listed API catalog, making its purpose ambiguous.

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 07:06:29Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-23

Agent access

JSONhttps://clawmart.sh/api/listings/eK54bp
Pay-per-call premium API access on Base via x402 — $0.02/request in USDC. — Clawmart · Clawmart