x402basequality 0.30

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

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/accounts/106/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/106/balance` is one of many endpoints offered by the lowpaymentfee.com platform, which hosts a broad catalog of pay-per-call APIs spanning data analytics, AI/ML inference, finance/Web3 data, and utility services. All endpoints are priced at $0.02 per request, settled in USDC on the Base network.

The x402 challenge confirms the endpoint is live and accepts POST requests. Payment is made via the `exact` scheme, requiring up to 20,000 base units of USDC (0.02 USD, since USDC uses 6 decimals) per call. The payment is sent to address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3` on Base, using the USDC contract at `0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913`. No API keys or rate limits are advertised; access is instant once payment is included in the `X-PAYMENT` header.

Documentation beyond the landing page is extremely sparse — the /docs, /api, /pricing, and /README pages all render only a "Connect wallet" prompt with no substantive content. There is no OpenAPI schema, no request/response examples, and no description of what the balance endpoint actually returns. The endpoint's purpose (account balance for account ID 106) is inferred solely from the URL path. Prospective callers should expect to experiment to discover the response format.

Capabilities

x402-paymentusdc-basepay-per-requestaccount-balancejson-response

Use cases

  • —Querying account balance data for account 106 via a single paid API call
  • —Integrating x402-compatible agents with pay-per-request balance lookups
  • —Testing x402 payment flows against a low-cost live endpoint

Fit

Best for

  • —Developers experimenting with x402 payment protocol integrations
  • —Agents that need a cheap, keyless API call on Base
  • —Quick account balance lookups without subscription overhead

Not for

  • —Production use cases requiring documented request/response schemas
  • —Bulk or high-throughput balance queries where per-call pricing adds up
  • —Users who need detailed API documentation before integrating

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/accounts/106/balance \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402_payment_token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/accounts/106/balance
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The x402 challenge is live and pricing is clear ($0.02 USDC on Base), but there is no documentation, no OpenAPI schema, no request/response examples, and the endpoint's actual functionality is only guessable from the URL path. The docs pages are all empty wallet-connect prompts.

Warnings

  • —No API documentation available — /docs, /api, /pricing, and /README all show only a wallet connect prompt
  • —No OpenAPI or request/response schema provided; response format is unknown
  • —The specific purpose of /api/v1/accounts/106/balance is inferred solely from the URL; no description exists
  • —The platform lists many endpoints but none have documented schemas or example payloads

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 01:04:30Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-27

Agent access

JSONhttps://clawmart.sh/api/listings/DDj3fP
x402-gated account balance endpoint on Base, pay $0.02 per request in USDC. — Clawmart · Clawmart