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/17/balance

What it does

This endpoint at lowpaymentfee.com returns account balance information for a specific account (account ID 17) via an x402-gated POST request. Payment is settled in USDC on the Base network at $0.02 per call (20,000 base units with 6 decimals). No API keys or rate limits are required — access is granted purely through the x402 payment protocol.

The provider lowpaymentfee.com hosts a broader suite of pay-per-call APIs spanning data & analytics, AI/ML inference (sentiment analysis, summarization, classification, embeddings), finance & Web3 (price feeds, exchange rates, token quotes, gas estimates), and infrastructure utilities (geocoding, validation, conversion, generation). All endpoints are listed at $0.02 per request and settle on the Base network using USDC.

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 schema, no request/response examples, and no description of what fields the balance response contains or what input parameters the POST body expects. The endpoint is confirmed live (returns a proper 402 x402 challenge), but the actual functionality and response format must be discovered experimentally.

Capabilities

x402-paymentusdc-base-networkaccount-balancepay-per-requestno-api-keyno-rate-limit

Use cases

  • —Querying account balance data without needing API key registration
  • —Agent-driven balance lookups settled instantly via USDC micropayments
  • —Integrating pay-per-call balance checks into automated workflows

Fit

Best for

  • —Developers wanting zero-signup API access via crypto micropayments
  • —AI agents that can settle x402 payments autonomously on Base
  • —Quick one-off balance queries without subscription commitments

Not for

  • —Users who need detailed API documentation or OpenAPI specs before integrating
  • —High-volume use cases where per-request pricing may add up compared to subscription plans
  • —Users without access to USDC on the Base network

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/accounts/17/balance \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-token>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/accounts/17/balance
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.30/ 1.00

The endpoint is confirmed live with a valid 402 x402 challenge, but there is no OpenAPI schema, no request/response examples, and all documentation pages render only a wallet-connect prompt. The actual functionality, input parameters, and response format are entirely unknown. This is effectively a stub listing.

Warnings

  • —No API documentation available — docs, pricing, and README pages all show only 'Connect wallet'
  • —No OpenAPI or JSON schema describing request body or response format
  • —The specific purpose of the /accounts/17/balance endpoint is unclear — it may be a demo or placeholder
  • —No request or response examples could be sourced

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 00:22:55Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-29

Agent access

JSONhttps://clawmart.sh/api/listings/Ja8qpQ
Check account balance via x402 micropayment on Base network for $0.02 per request. — Clawmart · Clawmart