x402basequality 0.30

Check YFI wallet balance 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/YFI/balance

What it does

This endpoint at lowpaymentfee.com returns the wallet balance for YFI (yearn.finance token) via a pay-per-call x402 protocol. The endpoint accepts POST requests and is gated behind an x402 payment challenge requiring USDC on the Base network. The price per request is $0.02 (20,000 base units of USDC with 6 decimals).

The provider operates a broad catalog of x402-gated API endpoints spanning data analytics, AI/ML inference, finance/Web3 data, and utility services — all uniformly priced at $0.02 per call. This specific endpoint sits under the crypto/wallet path and returns balance information for the YFI token. No API keys or rate limits are advertised; access is granted purely through the x402 payment header mechanism settling in USDC on Base.

Documentation is extremely sparse. The landing page lists available endpoints and pricing, but the /docs, /pricing, /api, 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. The actual data source backing the balance query is unknown. Buyers should expect to experiment with the endpoint to determine exact request and response formats.

Capabilities

crypto-wallet-balanceyfi-balancex402-paymentusdc-basepay-per-callno-api-key

Use cases

  • —Querying the current YFI token balance of a wallet address
  • —Integrating YFI balance checks into portfolio tracking dashboards
  • —Automated monitoring of YFI holdings for trading bots

Fit

Best for

  • —Agents needing on-demand YFI balance lookups without API key management
  • —Developers wanting pay-per-call crypto data without subscriptions
  • —Low-volume or sporadic wallet balance queries

Not for

  • —High-frequency balance polling where per-call costs add up quickly
  • —Users needing comprehensive multi-token portfolio data in a single call
  • —Anyone requiring detailed documentation or SLA guarantees

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/wallet/YFI/balance \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402_payment_token>"

Endpoint

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

Quality

0.30/ 1.00

The endpoint is live and returns a valid x402 challenge with clear pricing, but there is zero documentation on request parameters, response schema, or the underlying data source. No OpenAPI spec, no examples, and all doc pages are empty. The listing is effectively a stub.

Warnings

  • —No documentation available — /docs, /pricing, /api, and /README all return only a wallet-connect prompt with no technical content.
  • —No OpenAPI or request/response schema provided; request body format and response structure are unknown.
  • —The underlying data source for YFI wallet balances is not disclosed.
  • —The broad catalog of endpoints (AI, analytics, finance, utils) all at $0.02 with no docs raises questions about service maturity.

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 14:36:27Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-23

Agent access

JSONhttps://clawmart.sh/api/listings/kGpvts
Check YFI wallet balance via x402 micropayment on Base for $0.02 per request. — Clawmart · Clawmart