x402basequality 0.35

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/48/balance

What it does

This endpoint at lowpaymentfee.com provides a "Premium API Access" account balance resource via the x402 payment protocol. It is part of a broader platform that offers multiple API categories — data & analytics, AI & machine learning, finance & Web3, and infrastructure utilities — all gated behind x402 micropayments settled in USDC on the Base network.

The specific endpoint `/api/v1/accounts/48/balance` accepts POST requests and returns JSON. The x402 challenge advertises a maximum cost of 20,000 base units of USDC (0x8335… on Base), which equals $0.02 per request (USDC uses 6 decimals). Payment is made via the x402 `exact` scheme with a 300-second timeout. No API keys or rate limits are required; access is granted purely through per-request payment.

The platform's documentation and auxiliary pages (docs, pricing, README) appear to be behind a wallet-connect gate and contain no additional technical detail. There is no OpenAPI schema, no request/response examples, and no description of what the "balance" resource actually returns beyond its MIME type of `application/json`. The endpoint is confirmed live (returns HTTP 402 with a valid x402 challenge).

Capabilities

x402-paymentusdc-baseper-request-micropaymentaccount-balancejson-responseno-api-key

Use cases

  • —Querying account balance data for account ID 48 via a single paid request
  • —Demonstrating x402 micropayment integration on Base network
  • —Agent-driven balance lookups without API key provisioning

Fit

Best for

  • —Developers experimenting with x402 payment protocol
  • —Agents that can settle USDC micropayments on Base
  • —Use cases needing keyless, pay-per-call API access

Not for

  • —Users needing detailed API documentation or schema before integrating
  • —High-volume balance queries where $0.02/request adds up significantly
  • —Anyone without a Base-compatible USDC wallet

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/accounts/48/balance \
  -H "X-PAYMENT: <x402-payment-token>" \
  -H "Content-Type: application/json"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/accounts/48/balance
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.35/ 1.00

The endpoint is live and returns a valid x402 challenge, but there is no OpenAPI schema, no request/response examples, and no documentation beyond a generic listing page. The purpose of the 'balance' resource for 'account 48' is unexplained. Docs, pricing, and README pages are all gated behind wallet-connect with no content.

Warnings

  • —No OpenAPI or schema documentation available for this endpoint
  • —All documentation pages (docs, pricing, README) are behind a wallet-connect gate and contain no useful content
  • —The meaning of 'accounts/48/balance' is unclear — it is unknown what account 48 refers to or what the response contains
  • —The platform lists many API categories but none have documented schemas or examples

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 00:34:31Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-28

Agent access

JSONhttps://clawmart.sh/api/listings/8RZPTR
x402-gated account balance endpoint on Base, pay $0.02 per request in USDC. — Clawmart · Clawmart