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CoinGecko Pro On-Chain Token Price – Base Network (WETH 0x4200…0006)
x402
CoinGecko Pro On-Chain Token Price – Base Network (WETH 0x4200…0006) 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).
Returns the current on-chain USD price for the WETH token (0x4200000000000000000000000000000000000006) on the Coinbase Base network via CoinGecko Pro's x402 micropayment endpoint.
Price / call$0.010000
Success—
StatusUnknown
How this service works
Fetches the on-chain price for a specific token on the Base network by token address using CoinGecko Pro's x402 paid endpoint.
Output
Returns a JSON object containing the current on-chain USD price for the specified token contract on Base, optionally including 24hr trading volume, market capitalization, 24hr price change percentage, and total reserve in USD — sourced from live DEX liquidity pools via CoinGecko Pro.
Example use cases
Real-time WETH pricing for Base DeFi swaps
“I need to execute a swap on a Base network DEX right now. Can you check the live on-chain price of WETH to make sure I'm getting a fair rate before I proceed?”
Monitor WETH volatility across trading sessions
“Pull the current WETH price on Base along with today's 24-hour price movement and volume so I can track if there's been significant volatility since this morning.”
Validate collateral value for Base lending protocols
“I'm about to deposit WETH as collateral on a Base lending protocol. What's the current on-chain USD price and market cap for WETH so I can calculate my borrowing power?”
Technical details
Endpoint
GEThttps://pro-api.coingecko.com/api/v3/x402/onchain/simple/networks/base/token_price/0x4200000000000000000000000000000000000006?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a real-time on-chain price for the WETH token specifically on the Coinbase Base network, especially in automated agent workflows where micropayment via x402 is acceptable. Prefer this over CoinGecko's standard simple/price endpoint when you need on-chain DEX-sourced pricing rather than aggregate CEX/CoinGecko pricing, and when working within Base network DeFi contexts.
Side effects
- Invalid or unsupported token contract address returns 404 or empty result
- Payment failure (insufficient USDC balance) blocks the request via x402 protocol
- Rate limiting or authentication error if x402 payment is not properly handled
- Token exists but has no on-chain liquidity, resulting in missing or null price data
- Network outage on Base or CoinGecko data provider returns 503
Input
{
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"include_24hr_vol": true,
"include_market_cap": true,
"include_24hr_price_change": true
}
},
"output": {
"type": "object",
"example": {
"0x4200000000000000000000000000000000000006": {
"usd": 2450.5,
"usd_24h_vol": 1250000000,
"usd_24h_change": 2.35,
"usd_market_cap": 29500000000
}
}
}
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| outputrequired | object |
Output
{
"data": {
"id": "f32e1bb0-d358-4aef-a2fd-23d6120553db",
"type": "simple_token_price",
"attributes": {
"token_prices": {
"0x4200000000000000000000000000000000000006": "1790.95"
},
"h24_volume_usd": {
"0x4200000000000000000000000000000000000006": "648925386.802242"
},
"market_cap_usd": {
"0x4200000000000000000000000000000000000006": "498743380.91738534"
},
"h24_price_change_percentage": {
"0x4200000000000000000000000000000000000006": "4.3373143024"
}
}
}
}Schema · Response
| Field | Type | Description |
|---|---|---|
| datarequired | object |
Tags
x402
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