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CoinGecko Pro On-Chain WETH Price (Ethereum)
x402
CoinGecko Pro On-Chain WETH Price (Ethereum) is a paid API for AI agents from pro-api.coingecko.com, paid per call via x402, $0.010000/call, status unknown (last checked 2026-10-11).
Fetches the real-time on-chain price for WETH (Wrapped Ether) on Ethereum mainnet by contract address via CoinGecko Pro.
Price / call$0.010000
Success—
StatusUnknown
How this service works
Fetches the real-time on-chain price for WETH (0xC02aaa39b223fe8d0a0e5c4f27ead9083c756cc2) on Ethereum via CoinGecko Pro x402.
Output
Returns the real-time on-chain price of WETH (0xC02aaa39b223fe8d0a0e5c4f27ead9083c756cc2) on Ethereum, along with optional fields such as 24hr trading volume, market cap, 24hr price change percentage, and total reserve in USD — sourced from CoinGecko's on-chain DEX data.
Example use cases
Monitor WETH price for DeFi trading
“I need to check the current WETH price on Ethereum before I execute a swap. Can you get me the latest on-chain price and let me know if it's moved significantly in the last 24 hours?”
Track wrapped Ether market data
“Pull the real-time WETH token price from the contract address and give me the market cap and 24-hour trading volume so I can see how liquid the market is right now.”
Alert on WETH price movements
“What's the current USD price of WETH on Ethereum mainnet, and has it changed more than 5% in the last day? I want to know if there's unusual price activity happening.”
Technical details
Endpoint
GEThttps://pro-api.coingecko.com/api/v3/x402/onchain/simple/networks/eth/token_price/0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2?utm_source=zero.xyzWhen to prefer
Use this endpoint when you specifically need the real-time on-chain DEX price of WETH on Ethereum mainnet from CoinGecko's Pro API, especially when you need DEX-sourced pricing (not centralized exchange pricing) with optional market data like 24hr volume or market cap. Prefer this over generic coin price endpoints when you need on-chain data tied to a specific contract address rather than a coin ID.
Side effects
- Payment not received or x402 payment protocol failure — endpoint returns 402 Payment Required
- Invalid or unsupported contract address — returns 404 or empty result
- Network not supported — returns error if network identifier is incorrect
- Rate limit exceeded — returns 429 Too Many Requests
- Stale or missing on-chain liquidity data — price may be unavailable for illiquid tokens
Input
{
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"include_24hr_vol": true,
"mcap_fdv_fallback": false,
"include_market_cap": false,
"include_inactive_source": false,
"include_24hr_price_change": true,
"include_total_reserve_in_usd": false
}
},
"output": {
"type": "object",
"example": {
"0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2": {
"eth": {
"price": 2500.5,
"24h_vol": 1500000000,
"24h_price_change_percentage": 2.35
}
}
}
}
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| outputrequired | object |
Output
{
"data": {
"id": "fa4e71d0-9444-4e49-93df-ed7f59d3e10b",
"type": "simple_token_price",
"attributes": {
"token_prices": {
"0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2": "1794.24297383468"
},
"h24_volume_usd": {
"0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2": "371982028.296356"
},
"h24_price_change_percentage": {
"0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2": "4.4554421436"
}
}
}
}Schema · Response
| Field | Type | Description |
|---|---|---|
| datarequired | object |
Tags
x402
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