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CoinGecko Onchain Token Price — Optimism Network
x402
CoinGecko Onchain Token Price — Optimism Network is a paid API for AI agents from pro-api.coingecko.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-13).
Returns DEX-sourced token price and market data for a given contract address on the Optimism network
Price / call$0.01
Success—
StatusUnknown
How this service works
Query onchain DEX token price & market data based on the provided token contract addresses on a network.
Output
Returns a JSON object containing the token's current USD price sourced from onchain DEX activity, along with optional fields such as 24-hour trading volume, market capitalization, 24-hour price change percentage, total reserve in USD, and whether inactive sources were included — all keyed by the queried contract address.
Example use cases
DeFi portfolio price check
“Can you look up the current DEX price and 24-hour price change for this Optimism token at 0x7F5c764cBc14f9669B88837ca1490cCa17c31607? I want to know if it's moved significantly today.”
Onchain liquidity monitoring
“What's the total reserve in USD and 24-hour trading volume for the Optimism token contract 0x4200000000000000000000000000000000000006? I'm trying to assess liquidity before making a trade.”
Token market cap lookup for research
“I'm researching an Optimism-based token — can you fetch its current market cap and fully diluted valuation using the contract address 0x68f180fcCe6836688e9084f035309E29Bf0A2095 from CoinGecko's onchain data?”
Technical details
Endpoint
GEThttps://pro-api.coingecko.com/api/v3/x402/onchain/simple/networks/optimism/token_price/:addressWhen to prefer
Choose this endpoint when you need real-time, onchain DEX-sourced price data specifically for a token on the Optimism network identified by its contract address. It is preferred over CoinGecko's standard token price endpoints when the token may not have a CoinGecko coin ID (only a contract address), or when you specifically need DEX-derived pricing rather than aggregated CEX data. Use it over generic market data APIs when Optimism-specific onchain context (reserve, DEX volume) is required.
Side effects
- Contract address not found on Optimism — returns empty data or 404
- Invalid contract address format — returns 400 Bad Request
- Token has no recent DEX activity — returns stale or null price
- API key missing or invalid — returns 401 Unauthorized
- Rate limit exceeded — returns 429 Too Many Requests
- Network identifier mismatch (address exists on different chain) — returns no data
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| outputrequired | object |
Tags
x402
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