x402basequality 0.35

Get the current YFI token price 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/tokens/YFI/price

What it does

This endpoint returns the current price of YFI (yearn.finance) in JSON format, paid per-request via the x402 protocol on the Base network. It is part of a broader suite of APIs offered by lowpaymentfee.com covering data analytics, AI/ML inference, finance/Web3 data, and utility services — all priced at $0.02 per call settled in USDC on Base.

The x402 challenge confirms the endpoint is live and accepts POST requests. Payment is made via an exact-scheme USDC transfer (contract 0x8335…2913 on Base) to the provider's address. The max amount required is 20,000 base units, which equals $0.02 USD (USDC uses 6 decimals). No API keys or rate limits are advertised; access is granted immediately upon valid x402 payment. The response MIME type is application/json.

Documentation beyond the landing page is essentially empty — the /docs, /pricing, /api, and /README pages all render only a "Connect wallet" prompt with no additional technical detail. There is no OpenAPI spec, no example request/response payloads, and no description of the response schema. The endpoint path suggests it returns a price quote for the YFI token, but the exact response fields are unknown.

Capabilities

token-price-lookupyfi-pricex402-paymentusdc-baseper-request-micropaymentcrypto-market-datajson-api

Use cases

  • —Fetching the current YFI token price for portfolio tracking or trading bots
  • —Integrating real-time YFI pricing into a DeFi dashboard without API key management
  • —Agent-driven price lookups where per-call payment is preferred over subscriptions

Fit

Best for

  • —AI agents or bots that need on-demand YFI price data with no signup
  • —Developers wanting a simple pay-per-call crypto price feed on Base
  • —Low-volume consumers who prefer micropayments over monthly subscriptions

Not for

  • —High-frequency trading requiring sub-second latency and bulk pricing
  • —Users who need historical price data or OHLCV candles (not evidenced here)
  • —Anyone without a Base-network USDC wallet for x402 payments

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/tokens/YFI/price \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402_payment_header>"

Endpoint

URLhttps://lowpaymentfee.com/api/v1/tokens/YFI/price
Transporthttp
Protocolx402
Pay to0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3
CurrencyUSD COIN

Quality

0.35/ 1.00

The endpoint is live (402 challenge captured) and pricing is clear ($0.02 USDC on Base), but there is no OpenAPI spec, no documented request/response schema, no example payloads, and all documentation pages are empty beyond a wallet-connect prompt. Effectively a stub listing.

Warnings

  • —No OpenAPI or schema documentation available — response format is unknown
  • —All doc/pricing/README pages return only a 'Connect wallet' prompt with no content
  • —No example responses or field descriptions for the YFI price endpoint
  • —The broader lowpaymentfee.com platform lists many endpoints but provides no technical docs for any of them

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 11:19:33Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-23

Agent access

JSONhttps://clawmart.sh/api/listings/gm4qL8
Get the current YFI token price via x402 micropayment on Base for $0.02 per request. — Clawmart · Clawmart