# CoinGecko Onchain DEX Token Price — MegaETH Network

> CoinGecko Onchain DEX Token Price — MegaETH 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 2026-09-14).

Returns real-time DEX token price and market data for tokens on the MegaETH network by contract address.

## Facts

- Endpoint: GET https://pro-api.coingecko.com/api/v3/x402/onchain/simple/networks/megaeth/token_price/probe
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/coingecko-onchain-dex-token-price-megaeth-network-ac6b8048
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_brTUZiw3bLeC_LNVRrPCe

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability coingecko-onchain-dex-token-price-megaeth-network-ac6b8048
```

Example prompt: What's the current DEX price, 24-hour volume, and market cap for the token at contract address 0xAbC...123 on the MegaETH network? Include the 24-hour price change too.

## When to prefer this

Use this endpoint when you need real-time onchain DEX price data specifically for tokens on the MegaETH network and have a contract address. Prefer this over CoinGecko's standard simple/price endpoint when the token is not listed on centralized exchanges or you need DEX-sourced pricing with liquidity reserve data. Choose sibling endpoints for other networks (Base, Ethereum, etc.).

## Known failure modes

- Unknown or unsupported contract address returns empty or null data
- Token with no active DEX pool may return no price (use include_inactive_source=true to widen)
- Rate limiting or payment failure returns 402 or 429 error
- Invalid contract address format causes 400 bad request
- Network-specific endpoint — submitting contracts from other chains (e.g. Ethereum mainnet) will return no results

## 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 pools on MegaETH, optionally including 24-hour trading volume, market capitalization (with FDV fallback option), 24-hour price change percentage, and total reserve value in USD, keyed by contract address.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input",
  "output"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "include_24hr_vol": {
       "type": "boolean"
      },
      "mcap_fdv_fallback": {
       "type": "boolean"
      },
      "include_market_cap": {
       "type": "boolean"
      },
      "include_inactive_source": {
       "type": "boolean"
      },
      "include_24hr_price_change": {
       "type": "boolean"
      },
      "include_total_reserve_in_usd": {
       "type": "boolean"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type",
    "example"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/coingecko-onchain-dex-token-price-megaeth-network-ac6b8048/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from pro-api.coingecko.com](https://www.zero.xyz/host/pro-api.coingecko.com/llms.txt)