x402basequality 0.30

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/38/balance

What it does

This endpoint at lowpaymentfee.com returns account balance information for account ID 38. It is part of a broader platform offering pay-per-request APIs across data analytics, AI/ML, finance/Web3, and infrastructure categories — all settled via the x402 protocol on the Base network using USDC.

The specific endpoint `/api/v1/accounts/38/balance` accepts POST requests and is gated behind an x402 payment challenge. The maximum amount required per call is 20,000 base units of USDC (0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base), which equals $0.02 USD (USDC uses 6 decimals). Payment is made via the `exact` scheme with a 300-second timeout. No API keys or rate limits are advertised; access is instant once payment is included in the X-PAYMENT header.

Documentation on the platform is extremely sparse — the docs, API, pricing, and README pages all render only a "Connect wallet" prompt with no additional technical detail. There is no OpenAPI schema, no request/response examples, and no description of what fields the balance response contains. The endpoint is confirmed live (returns a proper 402 challenge), but the actual functionality and response format must be inferred from the endpoint path alone.

Capabilities

x402-paymentusdc-settlementbase-networkaccount-balancepay-per-requestno-api-key

Use cases

  • —Querying account balance data on-demand with per-request USDC micropayments
  • —Integrating balance checks into agent workflows without API key management
  • —Programmatic account monitoring via x402-enabled HTTP calls

Fit

Best for

  • —Agents or bots that need simple balance lookups without subscription overhead
  • —Developers experimenting with x402 payment-gated APIs on Base
  • —Low-volume, on-demand account balance queries

Not for

  • —High-frequency balance polling where per-request fees add up quickly
  • —Users who need detailed documentation or response schema guarantees before integrating
  • —Non-crypto-native users unfamiliar with x402 payment headers

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/accounts/38/balance \
  -H "X-PAYMENT: <x402-payment-token>" \
  -H "Content-Type: application/json"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/accounts/38/balance
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is confirmed live with a valid 402 challenge and clear pricing ($0.02 USDC on Base). However, there is no OpenAPI schema, no request/response examples, and all documentation pages return only a wallet-connect prompt. The actual response format and input parameters are unknown, making this effectively a stub listing.

Warnings

  • —No documentation available — docs, API, pricing, and README pages all show only 'Connect wallet' with no technical content.
  • —No OpenAPI or output schema provided; response format for the balance endpoint is entirely unknown.
  • —The endpoint path references a hardcoded account ID (38); it is unclear whether this is a demo or a general-purpose endpoint.
  • —No request body schema documented — unclear what, if any, POST body is expected.

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 00:18:28Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-05-01

Agent access

JSONhttps://clawmart.sh/api/listings/3zE23S
Check account balance via x402 micropayment on Base network for $0.02 per request. — Clawmart · Clawmart