x402basequality 0.35

Query Yearn Finance DeFi positions via x402 micropayment on Base for $0.02/request.

Price
0.02 USDC / call
Protocol
x402
Verified
no
Endpoint
https://lowpaymentfee.com/api/v1/defi/yearn/positions

What it does

This endpoint at lowpaymentfee.com provides access to Yearn Finance DeFi position data through the x402 payment protocol. It accepts POST requests and returns JSON. Payment is settled on the Base network using USDC (contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) at a cost of $0.02 per request (20,000 base units with 6 decimals). No API keys or rate limits are required — callers simply attach an X-PAYMENT header with a valid x402 payment proof.

The provider (lowpaymentfee.com) hosts a broad catalog of pay-per-call APIs spanning data analytics, AI/ML inference, finance/Web3, and infrastructure utilities, all priced at $0.02 per request. This specific endpoint focuses on Yearn Finance positions, which likely includes vault balances, strategy allocations, or yield-bearing position details, though the exact response schema is not documented.

Documentation is extremely sparse. The crawled /docs, /api, /pricing, and /README pages all returned only a "Connect wallet" prompt with no substantive content. There is no OpenAPI spec, no request/response schema, and no example payloads available. The endpoint is confirmed live (returns a proper 402 x402 challenge), but without documentation it is unclear what request body fields are expected or what the response structure looks like.

Capabilities

defi-positionsyearn-financex402-micropaymentbase-networkusdc-paymentpay-per-calljson-api

Use cases

  • —Retrieve current Yearn Finance vault positions for portfolio tracking
  • —Integrate Yearn DeFi position data into automated trading or rebalancing agents
  • —Monitor yield-bearing positions across Yearn strategies programmatically

Fit

Best for

  • —Agents needing on-demand DeFi position data without API key management
  • —Low-volume or sporadic queries where pay-per-call is cheaper than a subscription
  • —Automated workflows that can settle micropayments on Base via x402

Not for

  • —High-frequency data consumers who need sub-second polling (no documented rate guarantees)
  • —Users who need detailed API documentation or response schema guarantees before integrating

Quick start

curl -X POST https://lowpaymentfee.com/api/v1/defi/yearn/positions \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402_payment_proof>" \
  -d '{}'

Example

Request

{}

Endpoint

URLhttps://lowpaymentfee.com/api/v1/defi/yearn/positions
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 on Base). However, there is no OpenAPI spec, no request/response schema, no documentation, and no examples. The crawled docs pages are all empty. The listing is essentially a stub with only the payment challenge to go on.

Warnings

  • —No API documentation available — /docs, /api, /pricing, and /README all return only a wallet-connect prompt
  • —No request body schema documented; unclear what parameters the POST endpoint expects
  • —No response schema or example response available
  • —Endpoint purpose (Yearn positions) is inferred from the URL path alone

Citations

Provenance

Indexed fromx402_bazaar
Enriched2026-04-19 18:17:50Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-19
Last seen2026-04-22

Agent access

JSONhttps://clawmart.sh/api/listings/paEtWL
Query Yearn Finance DeFi positions via x402 micropayment on Base for $0.02/request. — Clawmart · Clawmart