x402basequality 0.30

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/charges/286

What it does

This endpoint at lowpaymentfee.com provides "Premium API Access" via the x402 payment protocol. The specific endpoint `/api/v1/charges/286` is one of many API endpoints offered by the platform, which spans categories including Data & Analytics, AI & Machine Learning, Finance & Web3, and Infrastructure utilities. All endpoints are priced at $0.02 per request, payable in USDC on the Base network with no API keys, rate limits, or commitments required.

The x402 challenge confirms the endpoint is live, accepting POST requests and settling payments in USDC (contract `0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913` on Base). The max amount required is 20,000 base units, which at 6 decimals for USDC equals $0.02 per call. The payment timeout is 300 seconds. The endpoint returns `application/json` responses.

However, the specific functionality behind `/api/v1/charges/286` is unclear — the description is simply "Premium API Access" with no further documentation. The docs, pricing, API, and README pages all render only a "Connect wallet" prompt with no substantive content. There is no OpenAPI schema, no request/response examples, and no detailed documentation available for this or any other endpoint on the platform. The platform lists many endpoint paths but provides no specifics about what data or computation each returns.

Capabilities

x402-paymentusdc-settlementbase-networkpay-per-requestno-api-keyjson-response

Use cases

  • —Programmatic access to paid API endpoints without traditional API key management
  • —Agent-driven workflows that need on-demand API calls settled in USDC on Base
  • —Testing x402 payment protocol integrations with a low-cost endpoint

Fit

Best for

  • —Developers experimenting with x402 payment-gated APIs
  • —AI agents that can autonomously pay for API calls via crypto
  • —Users who want no-commitment, pay-as-you-go API access

Not for

  • —Users who need detailed API documentation or guaranteed SLAs
  • —Anyone requiring non-crypto payment methods
  • —Production workloads that depend on well-documented request/response contracts

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/charges/286 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/charges/286
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is confirmed live via a valid 402 challenge with clear pricing ($0.02 USDC on Base). However, there is no documentation, no OpenAPI schema, no request/response examples, and the specific functionality of this endpoint is entirely undocumented. The docs and other pages render only wallet-connect prompts with no content.

Warnings

  • —No documentation available — docs, pricing, API, and README pages all show only 'Connect wallet' with no content
  • —The specific functionality of /api/v1/charges/286 ('Premium API Access') is not described anywhere
  • —No OpenAPI schema or request/response examples are provided
  • —No information about what data or computation this endpoint returns
  • —Platform lists many endpoints but none have documented behavior

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 03:47:39Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

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