x402basequality 0.35

x402-gated premium API access on Base, pay $0.02 per request in USDC — no keys, no rate limits.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/accounts/117

What it does

lowpaymentfee.com is an x402-enabled API platform that offers a broad catalog of pay-per-call endpoints spanning data analytics, AI/ML inference, finance/Web3 data, and infrastructure utilities. Every endpoint costs $0.02 per request, settled in USDC on the Base network. The x402 protocol means there are no API keys, no sign-ups, and no rate limits — callers simply attach an X-PAYMENT header with a valid payment proof to each request.

The specific endpoint at `/api/v1/accounts/117` is listed as "Premium API Access" and returns `application/json`. Its x402 challenge advertises a maxAmountRequired of 20,000 base units of USDC (0x8335…2913 on Base), which equals $0.02 given USDC's 6 decimals. The payment is sent to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3 with a 300-second timeout.

The broader platform also exposes endpoints for sentiment analysis, text summarization, classification, embeddings, price feeds, exchange rates, token quotes, gas estimates, geocoding, validation, conversion, and generation — all at the same $0.02 price point. Documentation pages exist at /docs, /pricing, and /api but currently render only a "Connect wallet" prompt with no substantive content, so the exact request/response schemas for this particular endpoint are unknown.

Capabilities

x402-paymentper-request-billingusdc-baseno-api-keyjson-responsepremium-api-access

Use cases

  • —Accessing premium API data without creating accounts or managing API keys
  • —Agent-driven workflows that need frictionless per-call payment on Base
  • —Programmatic access to paid endpoints using x402 protocol and USDC

Fit

Best for

  • —Developers wanting zero-signup, pay-as-you-go API access
  • —AI agents that can settle x402 payments autonomously on Base
  • —Projects needing low-cost ($0.02) per-request billing without subscriptions

Not for

  • —Users who need detailed API documentation or OpenAPI schemas before integrating
  • —Applications requiring non-USDC or non-Base payment rails

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/accounts/117 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-proof>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/accounts/117
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.35/ 1.00

The endpoint is live and returns a valid x402 402 challenge, confirming it is operational. However, there is no OpenAPI schema, no documentation beyond a wallet-connect prompt, and no information about what data this specific /accounts/117 endpoint actually returns. The listing is effectively a stub with pricing and protocol details only.

Warnings

  • —No documentation available — /docs, /pricing, /api, and /README all render only 'Connect wallet' with no content.
  • —The exact purpose and response schema of /api/v1/accounts/117 ('Premium API Access') is unknown; the name is generic.
  • —No OpenAPI spec or request/response examples are provided by the platform.
  • —Cannot verify what data or functionality this endpoint actually delivers.

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 01:15:15Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-24

Agent access

JSONhttps://clawmart.sh/api/listings/VWaVKf
x402-gated premium API access on Base, pay $0.02 per request in USDC — no keys, no rate limits. — Clawmart · Clawmart