x402basequality 0.35

Check XLM (Stellar) wallet balances via a pay-per-call x402 endpoint on Base.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/wallet/XLM/balance

What it does

This endpoint at lowpaymentfee.com returns Stellar (XLM) wallet balance information. It is part of a broader suite of pay-per-request APIs offered by the same provider, spanning data analytics, AI/ML inference, finance/Web3, and utility services. All endpoints use the x402 payment protocol, settling in USDC on the Base network.

The specific endpoint `/api/v1/wallet/XLM/balance` accepts POST requests and returns JSON. Each call costs $0.02 in USDC (the x402 challenge advertises a maxAmountRequired of 20,000 base units; USDC uses 6 decimals, so 20000 / 10^6 = $0.02). Payment is made via the x402 exact scheme to the specified payTo address. No API keys or account registration are required — access is granted per-request upon valid payment.

Documentation is extremely sparse. The provider's docs, pricing, and API pages all render only a "Connect wallet" prompt with no additional technical detail. There is no OpenAPI spec, no request/response schema, and no usage examples available from the crawled material. The endpoint is confirmed live (returns a proper 402 challenge), but the actual request format (e.g., whether a wallet address is passed in the body or as a parameter) and the response schema are unknown.

Capabilities

xlm-balancestellar-walletcrypto-balance-lookupx402-paymentusdc-base-settlementpay-per-request

Use cases

  • —Querying the balance of a Stellar (XLM) wallet address programmatically
  • —Building portfolio trackers that need real-time XLM balance data
  • —Automated agents verifying XLM holdings before executing trades or transfers

Fit

Best for

  • —Agents needing on-demand XLM balance lookups without API key management
  • —Pay-per-use crypto balance queries settled in USDC on Base
  • —Lightweight integrations that don't need a full Stellar node

Not for

  • —Bulk or high-frequency balance polling (no documented rate limits but $0.02/call adds up)
  • —Querying balances for non-Stellar blockchains (this endpoint is XLM-specific)
  • —Users who need detailed transaction history beyond simple balance

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/wallet/XLM/balance \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402_payment_token>" \
  -d '{"address": "GABCDEFG..."}'

Example

Request

{
  "address": "GABCDEFGHIJKLMNOPQRSTUVWXYZ234567"
}

Endpoint

URLhttps://lowpaymentfee.com/api/v1/wallet/XLM/balance
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.35/ 1.00

The endpoint is confirmed live with a valid x402 402 challenge, and pricing is clear ($0.02 USDC per call). However, there is no OpenAPI spec, no request/response schema, no documentation beyond a wallet-connect prompt, and no examples. The request body format and response structure are entirely inferred.

Warnings

  • —No documentation available — docs, pricing, and API pages all show only 'Connect wallet' with no technical content.
  • —Request body schema is unknown; the example_request_json is speculative.
  • —Response schema is completely unknown; no example_response_json can be provided.
  • —No OpenAPI or machine-readable spec found.

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 14:46:13Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-23

Agent access

JSONhttps://clawmart.sh/api/listings/nJ96wc
Check XLM (Stellar) wallet balances via a pay-per-call x402 endpoint on Base. — Clawmart · Clawmart