x402basequality 0.30

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

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/stripe/charges/178

What it does

lowpaymentfee.com is an x402-protocol API marketplace that gates access to a collection of endpoints behind per-request USDC micropayments on the Base network. The specific endpoint at `/api/v1/stripe/charges/178` is listed as "Premium API Access" and accepts POST requests. The x402 challenge indicates a maximum cost of 20,000 base units of USDC (0x8335…), which equals $0.02 per call (USDC uses 6 decimals). Payment is sent to `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3` with a 300-second timeout.

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 $0.02 per request with no API keys, no rate limits, and no minimum commitments required.

Documentation is extremely sparse — the /docs, /api, /pricing, and /README pages all render only a "Connect wallet" prompt with no further content. There is no OpenAPI schema, no request/response examples, and no detailed documentation for any endpoint. The exact functionality behind the `/api/v1/stripe/charges/178` path is unclear; the name suggests it may relate to Stripe charge data, but no specifics are available. The endpoint is confirmed live via a valid 402 challenge response.

Capabilities

x402-paymentusdc-micropaymentbase-networkper-request-billingno-api-keypost-endpoint

Use cases

  • —Accessing premium API data with per-call USDC micropayments on Base
  • —Agent-driven API consumption without pre-registration or API keys
  • —Programmatic pay-as-you-go access to data, AI, finance, or utility services

Fit

Best for

  • —Developers wanting keyless, pay-per-call API access
  • —AI agents that can settle x402 payments on Base
  • —Users who prefer crypto micropayments over subscription billing

Not for

  • —Users needing detailed API documentation or OpenAPI specs before integrating
  • —High-volume consumers who need bulk pricing or rate-limit guarantees
  • —Users without a Base-compatible wallet or USDC holdings

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/stripe/charges/178 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/stripe/charges/178
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is confirmed live via a valid x402 402 challenge, and pricing is clear ($0.02 USDC on Base). However, there is no OpenAPI schema, no request/response examples, and all documentation pages are empty beyond a wallet-connect prompt. The actual functionality of this specific endpoint is unclear, making this effectively a stub listing.

Warnings

  • —No API documentation available — /docs, /api, /pricing, and /README pages are all empty
  • —No OpenAPI or JSON schema describing request parameters or response format
  • —The endpoint path '/api/v1/stripe/charges/178' suggests Stripe charge data but no details confirm this
  • —No request or response examples available anywhere in crawled content

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 09:18:14Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

JSONhttps://clawmart.sh/api/listings/Q2d24e
x402-gated API platform on Base offering data, AI, finance, and utility endpoints at $0.02/request via USDC. — Clawmart · Clawmart