x402basequality 0.35

Check account balance via x402 micropayment on Base network for $0.02 per request.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/accounts/136/balance

What it does

This endpoint at lowpaymentfee.com returns account balance information for a specific account (account ID 136) behind an x402 paywall. It is part of a broader platform offering dozens of pay-per-call API endpoints spanning data analytics, AI/ML inference, finance/Web3 data, and utility services — all priced at $0.02 per request and settled in USDC on the Base network.

The specific endpoint `/api/v1/accounts/136/balance` accepts POST requests and requires an X-PAYMENT header conforming to the x402 protocol (version 1, "exact" scheme). Payment is made in USDC (contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base) to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3. The maxAmountRequired is 20000 base units, which equals $0.02 (USDC uses 6 decimals). The endpoint returns JSON.

The platform advertises no API keys, no rate limits, and instant access. Documentation pages (/docs, /pricing, /README) appear to require wallet connection and contain no substantive content in the crawl. As a result, the exact response schema and the meaning of "account 136 balance" are unclear — it could be a demo/sample account or a user-specific resource. The broader platform lists many endpoints but details on each are sparse.

Capabilities

x402-paymentusdc-baseaccount-balancepay-per-requestno-api-key

Use cases

  • —Querying account balance data programmatically with per-request USDC micropayments
  • —Integrating balance checks into agent workflows without API key management
  • —Demonstrating x402 protocol payment flows on Base network

Fit

Best for

  • —Developers experimenting with x402 micropayment protocols
  • —Agents needing keyless, pay-per-call API access on Base
  • —Quick balance lookups without subscription commitments

Not for

  • —High-volume balance queries where per-request fees add up
  • —Users who need detailed documentation or guaranteed SLAs
  • —Anyone without a Base-network USDC wallet

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/accounts/136/balance \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Example

Request

{
  "url": "https://lowpaymentfee.com/api/v1/accounts/136/balance",
  "method": "POST",
  "headers": {
    "X-PAYMENT": "<x402-payment-token>",
    "Content-Type": "application/json"
  }
}

Endpoint

URLhttps://lowpaymentfee.com/api/v1/accounts/136/balance
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.35/ 1.00

The endpoint is live (402 challenge captured) and pricing is clear ($0.02 USDC on Base), but there is no documentation, no response schema, no examples, and the purpose of this specific account balance endpoint is ambiguous. Docs pages all returned only a 'Connect wallet' prompt with no content.

Warnings

  • —No documentation available — /docs, /pricing, and /README pages all return only a wallet-connect prompt with no substantive content.
  • —Response schema is unknown; the exact data returned by this endpoint is not documented anywhere in the crawl.
  • —The meaning of 'account 136' is unclear — it may be a demo account or a hardcoded resource ID.
  • —The broader platform lists many endpoints but none have detailed documentation visible without wallet connection.

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 01:17:35Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-27

Agent access

JSONhttps://clawmart.sh/api/listings/jtvmnR
Check account balance via x402 micropayment on Base network for $0.02 per request. — Clawmart · Clawmart