x402basequality 0.30

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

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/accounts/183

What it does

lowpaymentfee.com is an x402-protocol API platform that gates access to a variety of endpoints behind per-request USDC micropayments on the Base network. The specific endpoint at `/api/v1/accounts/183` is listed as "Premium API Access" and accepts POST requests with payment via the x402 exact scheme. The payment challenge indicates a max amount of 20,000 base units of USDC (0x8335…2913 on Base), which equals $0.02 per request given USDC's 6 decimals.

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 the same $0.02/request price point. The platform emphasizes no API keys, no rate limits, no minimums, and instant access — callers simply attach an x402 payment header to each request.

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 what the `/api/v1/accounts/183` endpoint actually returns. The endpoint is confirmed live (returns 402 with a valid x402 challenge), but the lack of documentation makes it difficult to know what data or functionality this specific accounts endpoint provides.

Capabilities

x402-paymentusdc-micropaymentbase-networkper-request-billingno-api-keypost-endpointjson-response

Use cases

  • —Accessing premium account data via a single micropayment without API key registration
  • —Agent-driven workflows that need on-demand API access with crypto payment
  • —Programmatic access to gated resources using x402 protocol on Base

Fit

Best for

  • —Developers or agents already set up with x402 payment on Base
  • —Use cases requiring no-signup, pay-as-you-go API access
  • —Low-volume or sporadic API consumers who want to avoid subscriptions

Not for

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

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/accounts/183 \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/accounts/183
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is confirmed live with a valid x402 challenge and clear pricing ($0.02 USDC on Base). However, there is no OpenAPI schema, no documentation, no request/response examples, and no explanation of what the /api/v1/accounts/183 endpoint actually returns. The docs pages are all empty wallet-connect prompts. This is effectively a stub listing.

Warnings

  • —No documentation available — /docs, /api, /pricing, and /README pages all show only 'Connect wallet' with no content
  • —No OpenAPI or schema definition for any endpoint
  • —The purpose of /api/v1/accounts/183 ('Premium API Access') is completely undocumented — unclear what data it returns
  • —No request body schema or response examples available anywhere in crawled content

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 01:37:33Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-24

Agent access

JSONhttps://clawmart.sh/api/listings/2rmVp8
x402-gated API platform on Base offering data, AI, finance, and utility endpoints at $0.02/request. — Clawmart · Clawmart