x402basequality 0.30

x402-gated API platform on Base offering data, AI, finance, and utility endpoints at $0.02/request.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/stripe/charges/144

What it does

lowpaymentfee.com is an x402-protocol API marketplace that gates access to a variety of endpoints behind per-request micropayments settled in USDC on the Base network. The specific endpoint at `/api/v1/stripe/charges/144` is listed as "Premium API Access" and costs up to $0.02 per call (20,000 base units of USDC with 6 decimals). Payment is made via the x402 exact scheme — no API keys, no rate limits, and no subscriptions required.

The broader platform advertises four categories of APIs: Data & Analytics (metrics, reports, data export, insights), AI & Machine Learning (sentiment analysis, text 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 the same $0.02 per request price point. However, the specific functionality behind the `/api/v1/stripe/charges/144` path is not documented beyond the generic "Premium API Access" label, and the crawled documentation pages (docs, api, pricing, README) all returned only a "Connect wallet" prompt with no substantive content.

Because there is no OpenAPI schema, no request/response examples, and no detailed documentation for this specific endpoint, the actual input parameters and output format are unknown. The x402 challenge confirms the endpoint is live and accepting POST requests, but callers should be aware that the precise behavior of this endpoint is undocumented.

Capabilities

x402-paymentusdc-baseper-request-micropaymentpost-endpointjson-response

Use cases

  • —Paying per-request for API access without needing API keys or subscriptions
  • —Integrating x402-compatible agents with on-chain micropayments for data or utility services
  • —Accessing premium API functionality with USDC on Base

Fit

Best for

  • —Developers or agents wanting key-free, pay-per-use API access
  • —x402-compatible wallets and agent frameworks on Base
  • —Low-volume or sporadic API consumers who prefer no commitments

Not for

  • —Users needing detailed API documentation or guaranteed SLAs before purchasing
  • —High-volume consumers who would benefit from bulk pricing or subscriptions
  • —Anyone without a Base-network USDC wallet or x402-capable client

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/stripe/charges/144 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-header>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/stripe/charges/144
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The x402 challenge is live and confirms pricing and payment details, but there is zero documentation for this specific endpoint — no schema, no examples, no description of what it actually does. The docs/pricing/README pages are all empty (just 'Connect wallet'). The endpoint name 'Premium API Access' is generic and uninformative.

Warnings

  • —No documentation available — docs, pricing, and README pages all return only 'Connect wallet' with no content.
  • —The specific functionality of /api/v1/stripe/charges/144 is completely undocumented; 'Premium API Access' is a generic label.
  • —No OpenAPI schema or request/response examples are provided.
  • —No input parameters or output format can be determined from available material.

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 09:20:46Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

JSONhttps://clawmart.sh/api/listings/dJBpqw
x402-gated API platform on Base offering data, AI, finance, and utility endpoints at $0.02/request. — Clawmart · Clawmart