x402basequality 0.35

Query FTM wallet balances via x402 micropayment on Base for $0.02 per request.

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

What it does

This endpoint at lowpaymentfee.com returns Fantom (FTM) wallet balance data, accessible through the x402 payment protocol. It is part of a broader suite of pay-per-call APIs offered by the same provider, spanning data analytics, AI/ML inference, finance/Web3, and utility services. All endpoints on the platform share a uniform $0.02-per-request pricing model settled in USDC on the Base network.

The specific endpoint `/api/v1/wallet/FTM/balance` accepts POST requests and returns JSON. Payment is handled via the x402 exact-payment scheme: callers attach an `X-PAYMENT` header with a signed USDC payment of up to 20,000 base units (i.e., $0.02) to the provider's address on Base. No API keys, accounts, or rate limits are advertised — access is purely pay-per-call.

Documentation beyond the landing page is extremely sparse. The /docs, /pricing, /api, and /README pages all resolve to a minimal "Connect wallet" stub with no additional technical detail. There is no OpenAPI spec, no request/response schema, and no usage examples. The endpoint is confirmed live (returns a proper 402 challenge), but the actual response format and required input parameters are unknown.

Capabilities

wallet-balance-queryftm-fantomx402-micropaymentusdc-paymentbase-networkpay-per-callno-api-key

Use cases

  • —Checking FTM token balances for a given wallet address
  • —Integrating Fantom balance lookups into agent workflows without API key management
  • —Pay-per-call wallet monitoring for bots or dashboards

Fit

Best for

  • —Agents needing on-demand FTM balance checks without subscription overhead
  • —Developers prototyping crypto portfolio tools with minimal setup
  • —x402-native applications that settle payments in USDC on Base

Not for

  • —High-frequency balance polling where per-call costs add up quickly
  • —Users needing detailed transaction history or multi-token portfolio data
  • —Anyone requiring comprehensive API documentation before integration

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/wallet/FTM/balance \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <signed-x402-payment-header>" \
  -d '{"address": "0xYourFTMWalletAddress"}'

Example

Request

{
  "address": "0x1234567890abcdef1234567890abcdef12345678"
}

Endpoint

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

Quality

0.35/ 1.00

The endpoint is confirmed live via a valid 402 challenge, and pricing is clear ($0.02 USDC on Base). However, there is no OpenAPI spec, no documented request/response schema, no usage examples, and all documentation pages are empty stubs. The request body and response format are entirely inferred.

Warnings

  • —No API documentation available — /docs, /api, /pricing, and /README all return only a 'Connect wallet' stub
  • —No OpenAPI or JSON schema provided; request parameters and response format are unknown
  • —The example request JSON is speculative — actual required fields are not documented
  • —Provider offers many diverse endpoints (AI, analytics, finance, utilities) all at $0.02 — unclear if all are fully implemented

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 14:32:35Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-23

Agent access

JSONhttps://clawmart.sh/api/listings/9cS7mm
Query FTM wallet balances via x402 micropayment on Base for $0.02 per request. — Clawmart · Clawmart