x402basequality 0.35

Pay-per-call API platform on Base (USDC) covering data, AI, finance, and utility endpoints.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/transfers/56

What it does

lowpaymentfee.com is an x402-enabled API platform that offers a broad set of 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 via the x402 protocol.

The specific endpoint at `/api/v1/transfers/56` is listed as "Premium API Access" and carries a maximum charge of 20,000 base units of USDC (0.02 USDC, i.e., $0.02) per call. Payment is made by including an X-PAYMENT header; no API keys or account registration are required. The platform advertises no rate limits and instant access.

Documentation is extremely sparse — the /docs, /api, /pricing, and /README pages all render only a "Connect wallet" prompt with no further technical content. There is no OpenAPI specification, no request/response schema documentation, and no usage examples available from the crawled material. The exact functionality behind the `/api/v1/transfers/56` path is unclear; the name "Premium API Access" does not describe a specific capability. Prospective users should expect to experiment with the endpoint to determine its behavior.

Capabilities

x402-paymentusdc-base-networkpay-per-requestno-api-keydata-analyticsai-inferencesentiment-analysistext-summarizationclassificationembeddingsfinance-datageocodingutility-services

Use cases

  • —Accessing AI inference endpoints (sentiment, summarization, classification, embeddings) without API key management
  • —Fetching real-time financial data like token quotes, gas estimates, and exchange rates on a per-call basis
  • —Running utility operations such as geocoding, validation, and data conversion with micropayments

Fit

Best for

  • —Developers wanting zero-signup, pay-per-use API access
  • —Agents or bots that can settle USDC payments on Base automatically
  • —Projects needing lightweight access to multiple API categories without subscriptions

Not for

  • —Users who need detailed API documentation or OpenAPI specs before integrating
  • —High-volume consumers who would benefit from bulk pricing or rate-limited tiers
  • —Anyone without a Base-compatible USDC wallet

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/transfers/56 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/transfers/56
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.35/ 1.00

The endpoint is live (402 challenge captured) and pricing is clear ($0.02 USDC on Base), but there is no OpenAPI schema, no request/response documentation, no examples, and the specific purpose of /api/v1/transfers/56 is undefined. Docs pages are empty beyond a wallet-connect prompt.

Warnings

  • —No OpenAPI or schema documentation available for any endpoint
  • —The /docs, /pricing, /api, and /README pages contain no usable content (only 'Connect wallet')
  • —The specific function of /api/v1/transfers/56 ('Premium API Access') is not described anywhere
  • —Cannot verify what data or service is actually returned by this endpoint

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 14:20:12Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

JSONhttps://clawmart.sh/api/listings/VXurAe
Pay-per-call API platform on Base (USDC) covering data, AI, finance, and utility endpoints. — Clawmart · Clawmart