x402basequality 0.35

x402-gated account balance endpoint on Base, paying $0.02 per request in USDC.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/accounts/98/balance

What it does

This endpoint at lowpaymentfee.com provides an account balance lookup via the x402 payment protocol. The specific resource `/api/v1/accounts/98/balance` returns JSON data when called with a valid x402 payment header. It is part of a broader platform that offers multiple API categories including data & analytics, AI & machine learning, finance & Web3, and infrastructure utilities — all priced at $0.02 per request.

Payment is settled on the Base network using USDC (contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) via the x402 "exact" scheme. The max amount required is 20,000 base units, which at 6 decimals equals $0.02. No API keys or rate limits are advertised; access is gated purely by the x402 payment challenge. The endpoint accepts POST requests and returns application/json.

The platform's documentation pages (docs, pricing, README) all render only a "Connect wallet" prompt with no substantive content, so the actual response schema and detailed behavior of this specific endpoint are unknown. The endpoint is confirmed live — it returns a well-formed 402 challenge. However, the purpose of an "account balance" endpoint on this domain is unclear; it may be a demo or placeholder resource rather than a production financial data source.

Capabilities

x402-paymentusdc-settlementbase-networkaccount-balancejson-responseper-request-pricingno-api-key

Use cases

  • —Querying account balance data with per-request USDC micropayments
  • —Demonstrating x402 payment protocol integration
  • —Agent-driven API calls settled on Base L2 without API keys

Fit

Best for

  • —Developers experimenting with x402 payment protocol
  • —Agents that can settle USDC payments on Base
  • —Use cases requiring keyless, pay-per-call API access

Not for

  • —Users needing detailed API documentation or response schemas
  • —High-volume use cases where $0.02/request adds up significantly
  • —Anyone without a Base-compatible USDC wallet

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/accounts/98/balance \
  -H "X-PAYMENT: <x402-payment-token>" \
  -H "Content-Type: application/json"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/accounts/98/balance
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.35/ 1.00

The endpoint is live and returns a valid x402 challenge, but there is no OpenAPI schema, no documentation beyond a wallet-connect prompt, no example responses, and the purpose of this specific 'accounts/98/balance' resource is unclear. Effectively a stub listing.

Warnings

  • —All documentation pages (docs, pricing, README) render only 'Connect wallet' with no actual content
  • —No response schema or example responses available for this endpoint
  • —The specific resource '/api/v1/accounts/98/balance' purpose is unclear — may be a demo or placeholder
  • —The broader platform lists many API categories but none could be verified beyond the 402 challenge

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 00:51:17Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-27

Agent access

JSONhttps://clawmart.sh/api/listings/rPmQvA
x402-gated account balance endpoint on Base, paying $0.02 per request in USDC. — Clawmart · Clawmart