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/47/balance

What it does

This endpoint at lowpaymentfee.com provides a premium API access point for retrieving account balance information (specifically account #47). It is part of a broader platform offering various x402-protocol-gated APIs spanning data analytics, AI/ML inference, finance/Web3, and infrastructure utilities—all priced at $0.02 per request settled in USDC on the Base network.

The specific endpoint `/api/v1/accounts/47/balance` accepts POST requests and returns JSON. Payment is handled via the x402 protocol: callers must include an X-PAYMENT header with a valid payment proof. The challenge advertises a maxAmountRequired of 20000 base units of USDC (0x8335…2913 on Base), which equals $0.02 given USDC's 6 decimals. No API keys or rate limits are imposed; access is purely pay-per-call.

The platform's documentation pages are minimal (only showing a "Connect wallet" prompt), so details about the response schema, supported request parameters, or the exact nature of the "balance" data returned are not documented in the crawled material. The endpoint is confirmed live via a valid 402 challenge response.

Capabilities

x402-paymentusdc-settlementbase-networkaccount-balancepay-per-requestno-api-keyjson-response

Use cases

  • —Retrieving account balance data without traditional API key registration
  • —Programmatic balance checks settled instantly via USDC on Base
  • —Agent-driven financial data retrieval with per-call payment

Fit

Best for

  • —Developers wanting keyless, pay-per-use API access
  • —AI agents that can settle x402 payments autonomously
  • —Users who prefer crypto micropayments over subscription billing

Not for

  • —Users needing detailed documentation or OpenAPI specs before integration
  • —High-volume consumers who would benefit from bulk/subscription pricing
  • —Anyone without a Base-compatible USDC wallet

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/accounts/47/balance \
  -H "X-PAYMENT: <valid_x402_payment_proof>" \
  -H "Content-Type: application/json"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/accounts/47/balance
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.35/ 1.00

The endpoint is confirmed live with a valid x402 402 challenge, but there is no documentation on request/response schemas, no OpenAPI spec, and the docs pages are empty stubs. The purpose of the 'account balance' endpoint is unclear beyond its name.

Warnings

  • —No OpenAPI or schema documentation available for this endpoint
  • —Docs, pricing, and README pages all render only a 'Connect wallet' prompt with no useful content
  • —The specific data returned by /api/v1/accounts/47/balance is undocumented—purpose is inferred solely from the URL path
  • —Platform appears to be a generic demo or placeholder; actual utility of responses is unverified

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 00:31:20Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-28

Agent access

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