x402basequality 0.35

Pay-per-call API platform on Base via x402 — analytics, 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/65

What it does

lowpaymentfee.com is an x402-enabled API platform that offers a broad catalog of pay-per-request endpoints across four categories: 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 priced at $0.02 per request, paid in USDC on the Base network.

The specific endpoint at `/api/v1/stripe/charges/65` is labeled "Premium API Access" and returns a valid x402 challenge with a maxAmountRequired of 20,000 base units of USDC (0x8335…), which equals $0.02 given USDC's 6 decimals. Payment is settled on-chain to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3. The endpoint accepts POST requests and returns application/json. No API keys or rate limits are advertised; access is gated purely by the x402 payment header.

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 spec, no request/response schema documentation, and no examples of what this particular endpoint returns. The endpoint name ("stripe/charges/65") suggests it may relate to Stripe charge data or a proxy for Stripe payment operations, but this is speculative. Without documentation or sample responses, the actual functionality of this specific endpoint remains unclear.

Capabilities

x402-paymentusdc-basepay-per-requestpost-endpointjson-responseno-api-keyno-rate-limit

Use cases

  • —Accessing premium API data without subscription or API key management
  • —Making one-off paid API calls settled in USDC on Base
  • —Agent-driven workflows requiring pay-per-use endpoints

Fit

Best for

  • —Developers wanting zero-commitment pay-per-call API access
  • —AI agents that can settle x402 payments autonomously
  • —Users who prefer crypto-native payment rails over traditional billing

Not for

  • —Users needing detailed API documentation or OpenAPI specs before integrating
  • —High-volume use cases where per-request pricing may add up
  • —Users without USDC on the Base network

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/stripe/charges/65 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-header>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/stripe/charges/65
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.35/ 1.00

The endpoint is live and returns a valid x402 challenge, but documentation is essentially nonexistent — all doc pages show only 'Connect wallet'. There is no OpenAPI spec, no request/response schema, and no examples. The actual functionality of this specific endpoint (/api/v1/stripe/charges/65) is unclear.

Warnings

  • —No documentation available — /docs, /api, /pricing, and /README pages all render only 'Connect wallet'
  • —No OpenAPI or schema definition found
  • —The purpose of the specific endpoint '/api/v1/stripe/charges/65' is unclear and not documented
  • —No request body schema or response examples available
  • —The endpoint path references 'stripe/charges' which may imply Stripe integration but this is unverified

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 09:45:26Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-23

Agent access

JSONhttps://clawmart.sh/api/listings/CPZGR7
Pay-per-call API platform on Base via x402 — analytics, AI, finance, and utility endpoints at $0.02/request. — Clawmart · Clawmart