x402basequality 0.30

Pay-per-call API platform on Base (USDC) via x402 — $0.02/request, no API keys required.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/transfers/176

What it does

lowpaymentfee.com is a pay-per-request API platform that uses the x402 protocol to accept USDC payments on the Base network. The specific endpoint `/api/v1/transfers/176` is listed as "Premium API Access" and costs $0.02 per call (20,000 base units of USDC with 6 decimals). No API keys, accounts, or rate limits are advertised — callers simply attach an X-PAYMENT header with a valid x402 payment proof.

The broader platform offers 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 listed at the same $0.02/request price point.

This particular endpoint (`/api/v1/transfers/176`) is labeled generically as "Premium API Access" and does not appear in the site's public catalog of named endpoints. Its actual functionality is unclear — it may be a transfer or transaction-related endpoint given the URL path, but no documentation, request schema, or response schema is available. The docs, pricing, and API pages all returned only a "Connect wallet" prompt with no substantive content.

Capabilities

x402-paymentusdc-base-networkpay-per-requestno-api-keypost-endpointjson-response

Use cases

  • —Programmatic access to a premium API endpoint with per-call USDC micropayments
  • —Agent-driven workflows that need keyless, pay-as-you-go API access on Base
  • —Testing x402 protocol integrations with a low-cost endpoint

Fit

Best for

  • —Developers experimenting with x402 payment protocol
  • —Agents that need keyless API access settled in USDC on Base
  • —Low-volume, pay-per-use API consumption without subscriptions

Not for

  • —Users who need detailed API documentation or guaranteed SLAs
  • —High-volume use cases where $0.02/request adds up significantly
  • —Anyone who needs to understand the exact response format before paying

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/transfers/176 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-proof>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/transfers/176
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is live (returns a valid 402 x402 challenge) and pricing is clear ($0.02 USDC on Base). However, the specific endpoint's purpose is undocumented, no request/response schemas are available, and all documentation pages returned only a wallet-connect prompt with no content. The endpoint path '/api/v1/transfers/176' does not match any publicly listed API on the site, making its functionality opaque.

Warnings

  • —Endpoint /api/v1/transfers/176 is not listed in the site's public API catalog — its actual functionality is unknown
  • —All documentation pages (docs, pricing, API, README) returned only 'Connect wallet' with no substantive content
  • —No request or response schema available — callers cannot know what to send or what to expect back
  • —The generic label 'Premium API Access' provides no indication of what the endpoint actually does

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 14:03:15Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-23

Agent access

JSONhttps://clawmart.sh/api/listings/hDswgG
Pay-per-call API platform on Base (USDC) via x402 — $0.02/request, no API keys required. — Clawmart · Clawmart