SushiSwap APY data via x402 micropayment on Base — $0.02 per request, no API key needed.
What it does
This endpoint returns SushiSwap APY (annual percentage yield) data through the x402 payment protocol. It is hosted on lowpaymentfee.com, a platform offering a variety of pay-per-call APIs spanning DeFi, analytics, AI, and utility categories. Each request costs $0.02 in USDC on the Base network, with no API keys, subscriptions, or rate limits required.
The specific endpoint at `/api/v1/defi/sushiswap/apy` is a POST endpoint that responds with `application/json`. Payment is handled inline via the x402 protocol: callers attach an `X-PAYMENT` header containing a signed USDC payment of up to 20,000 base units (i.e., $0.02, since USDC uses 6 decimals) to the payee address on Base. The payment timeout is 300 seconds.
Documentation beyond the landing page is extremely sparse — the docs, API, pricing, and README pages all render only a "Connect wallet" prompt with no additional technical detail. There is no OpenAPI schema, no example request/response payloads, and no description of what fields the APY response contains. The endpoint is confirmed live (returns a proper 402 challenge), but consumers should expect to experiment with the POST body to discover the exact input format and response shape.
Capabilities
Use cases
- —Fetching current SushiSwap pool APY for yield-farming dashboards
- —Comparing DeFi protocol yields programmatically
- —Integrating SushiSwap APY into portfolio tracking tools
- —Automated yield optimization strategies that need real-time APY feeds
Fit
Best for
- —Developers building DeFi dashboards or aggregators
- —Agents that need on-demand yield data without managing API keys
- —Quick, low-cost one-off lookups of SushiSwap APY
Not for
- —High-frequency polling where per-request costs accumulate quickly
- —Users who need detailed historical APY time-series (no evidence this is supported)
- —Anyone requiring comprehensive documentation or guaranteed SLA
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/defi/sushiswap/apy \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-signed-payment-header>"Endpoint
Quality
The endpoint is confirmed live via a valid 402 challenge, but there is no OpenAPI schema, no documented request/response format, no examples, and all doc pages render only a wallet-connect prompt. The listing is effectively a stub with pricing and liveness confirmed but nothing else.
Warnings
- —No OpenAPI or schema documentation available — request body format and response fields are unknown.
- —All documentation pages (docs, API, pricing, README) return only a 'Connect wallet' prompt with no technical content.
- —No example responses or field descriptions for the APY data returned.
- —The endpoint description is generic ('Premium API Access') and does not describe the actual data.
Citations
- —Endpoint returns a valid x402 402 challenge with maxAmountRequired of 20000 base units of USDC on Basehttps://lowpaymentfee.com/api/v1/defi/sushiswap/apy
- —USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base networkhttps://lowpaymentfee.com/api/v1/defi/sushiswap/apy
- —Platform advertises $0.02 per request, no API keys, no rate limits, Base networkhttps://lowpaymentfee.com
- —Payment timeout is 300 seconds and response MIME type is application/jsonhttps://lowpaymentfee.com/api/v1/defi/sushiswap/apy