x402basequality 0.30

x402-gated account balance endpoint on Base, pay-per-call with USDC.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/accounts/171/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/171/balance` is described as "Premium API Access" and returns JSON. Payment is settled on the Base network using USDC (contract 0x8335…2913) with a maximum cost of 0.02 USDC per request (20,000 base units at 6 decimals).

The broader lowpaymentfee.com platform advertises a suite of pay-per-request APIs spanning data analytics, AI/ML inference (sentiment analysis, summarization, classification, embeddings), finance/Web3 data (price feeds, exchange rates, token quotes, gas estimates), and infrastructure utilities (geocoding, validation, conversion, generation). All endpoints are listed at $0.02 per request with no API keys, no rate limits, and no minimum commitments. However, the specific endpoint being listed here is the account balance resource, not the broader catalog.

Documentation is extremely sparse — the /docs, /api, /pricing, and /README pages all render only a "Connect wallet" prompt with no further technical detail. There is no OpenAPI spec, no request/response schema documentation, and no usage examples available from the crawl. The endpoint is confirmed live via a valid x402 402 challenge.

Capabilities

x402-paymentusdc-settlementbase-networkaccount-balancepay-per-requestjson-response

Use cases

  • —Querying account balance information via a single paid API call
  • —Integrating pay-per-request balance checks into agent workflows
  • —Demonstrating x402 payment protocol usage on Base

Fit

Best for

  • —Developers experimenting with x402 payment protocol
  • —Agents needing on-demand account balance data without API key management
  • —Low-volume, pay-as-you-go API consumption

Not for

  • —High-volume balance queries where per-call fees add up
  • —Users needing detailed API documentation or SDKs before integration
  • —Production workloads requiring SLA guarantees

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/accounts/171/balance \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/accounts/171/balance
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is live (valid 402 challenge captured) and pricing is clear ($0.02 USDC on Base). However, there is no OpenAPI spec, no request/response schema, no documentation beyond a wallet-connect prompt, and no examples. The endpoint's actual functionality ('account balance') is vaguely described with no detail on inputs or outputs.

Warnings

  • —No OpenAPI or schema documentation available — request and response formats are unknown
  • —All documentation pages (/docs, /api, /pricing, /README) render only 'Connect wallet' with no content
  • —The specific purpose of 'accounts/171/balance' is unclear — it may be a demo or placeholder endpoint
  • —No SLA, rate limit, or uptime guarantees documented

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 01:33:39Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-27

Agent access

JSONhttps://clawmart.sh/api/listings/e4JKrz
x402-gated account balance endpoint on Base, pay-per-call with USDC. — Clawmart · Clawmart