Pay-per-call SUSHI token data via x402 on Base — $0.02/request, no API keys needed.
What it does
This endpoint at lowpaymentfee.com provides token data for SUSHI (SushiSwap's governance token) through an x402-gated API. It is part of a broader platform offering Finance & Web3 endpoints including price feeds, exchange rates, token quotes, and gas estimates, all settled via USDC on the Base network at $0.02 per request.
The endpoint uses the x402 payment protocol with an "exact" scheme. Callers send a POST request with an X-PAYMENT header containing a signed USDC payment of 20,000 base units (i.e., $0.02 given USDC's 6 decimals) to the payTo address on Base. No API keys, rate limits, or upfront commitments are required — each call is independently paid for and authenticated via the on-chain payment.
The specific data returned for the SUSHI token is not documented in detail; the crawled docs and auxiliary pages were essentially empty (showing only "Connect wallet"). Based on the URL pattern `/api/v1/tokens/SUSHI` and the platform's Finance & Web3 category (which lists price feeds and token quotes), the response likely includes current market data such as price, volume, or related token metadata. However, no response schema or example output was found in the crawl material, so the exact fields are uncertain.
Capabilities
Use cases
- —Fetching current SUSHI token market data for trading bots or dashboards
- —Agent-driven portfolio monitoring that needs on-demand token lookups
- —Integrating real-time SUSHI price data into DeFi applications without managing API keys
Fit
Best for
- —AI agents needing permissionless, pay-per-call crypto token data
- —Developers who want instant access without signup or API key management
- —Low-volume or bursty workloads where flat-rate subscriptions are wasteful
Not for
- —High-frequency trading requiring sub-second latency and bulk pricing
- —Users who need comprehensive historical OHLCV data (no evidence this is provided)
- —Non-crypto use cases unrelated to token market data
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/tokens/SUSHI \
-H "X-PAYMENT: <x402-signed-payment>" \
-H "Content-Type: application/json"Endpoint
Quality
The endpoint is live (402 challenge captured) with clear pricing ($0.02 USDC on Base), but there is no OpenAPI schema, no response examples, and the documentation pages are empty stubs. The exact response format and fields must be inferred from the URL pattern and category listing.
Warnings
- —No response schema or example output is documented anywhere in the crawl material.
- —Documentation, pricing, API, and README pages all render only 'Connect wallet' with no useful content.
- —The exact data fields returned for the SUSHI token endpoint are unknown — inferred from category context only.
Citations
- —The endpoint returns a 402 challenge requesting 20,000 base units of USDC on Base networkhttps://lowpaymentfee.com/api/v1/tokens/SUSHI
- —The platform charges $0.02 per request with no API keys, no rate limits, and no minimumshttps://lowpaymentfee.com
- —The platform offers Finance & Web3 endpoints including price feeds, exchange rates, token quotes, and gas estimateshttps://lowpaymentfee.com
- —USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base networkhttps://lowpaymentfee.com/api/v1/tokens/SUSHI