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Aether Base Token Price Lookup
x402
Aether Base Token Price Lookup is a paid API for AI agents from aether-x402.vercel.app, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-12).
Returns the current USD price and best liquidity pool for a given ERC-20 token contract address on the Base blockchain.
Price / call$0.003
Success—
StatusUnknown
How this service works
Pay-per-call Base onchain data, token risk verdicts and x402 payability audits over x402 (USDC on Base).
Output
Returns a JSON object containing the token's ticker symbol, current USD price, the name of the best DEX pool (e.g. Aerodrome), and total liquidity in USD for that pool.
Example use cases
DeFi portfolio token valuation
“I hold some AERO tokens on Base — can you look up the current USD price and liquidity for contract 0x940181a94A35A4569E4529A3CDfB74e38FD98631 so I can see what my position is worth?”
DEX arbitrage opportunity check
“Check the onchain price and best pool for the Base token at 0x4200000000000000000000000000000000000006 — I want to know which DEX has the deepest liquidity right now.”
New token listing due diligence
“Before I buy into this new Base token at 0xd9aAEc86B65D86f6A7B5B1b0c42FFA531710b6CA, can you pull its current USD price and how much liquidity it has on Base DEXes?”
Technical details
Endpoint
POSThttps://aether-x402.vercel.app/v1/base/price?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need real-time onchain token price and liquidity data specifically for Base network ERC-20 tokens, paid per-call via x402/USDC micropayment. Prefer this over centralized price APIs when you need trustless, DEX-sourced pricing without a subscription, or when building agents that autonomously pay for data using USDC on Base.
Side effects
- Invalid or non-ERC-20 contract address returns an error or empty result
- Token not traded on any Base DEX returns no price data
- Payment failure via x402/USDC results in 402 response blocking data access
- Newly deployed tokens with insufficient liquidity may return null or zero values
- Incorrect address format (not matching ^0x[0-9a-fA-F]{40}$) returns a validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| token | string |
Output
Schema · Response
{
"type": "json",
"example": {
"symbol": "AERO",
"bestPool": {
"dex": "aerodrome"
},
"priceUsd": 0.81,
"liquidityUsd": 47000000
}
}Tags
x402
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