# CoinGecko Onchain DEX Token Price – Monad Network

> CoinGecko Onchain DEX Token Price – Monad 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).

Fetches real-time DEX token price and market data for token contract addresses on the Monad network via CoinGecko's onchain API.

## Facts

- Endpoint: GET https://pro-api.coingecko.com/api/v3/x402/onchain/simple/networks/monad/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-monad-network-6bb71a5f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Uhupwg3TondEqF9UZxD3s

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-monad-network-6bb71a5f
```

Example prompt: What's the current onchain DEX price, 24-hour volume, and market cap for the Monad token at contract address 0xABC123... on CoinGecko?

## When to prefer this

Use this endpoint when you need real-time onchain DEX token prices specifically for the Monad network and want data sourced directly from decentralized exchange liquidity pools rather than centralized exchange order books. Prefer this over CoinGecko's standard simple/price endpoint when the token is only traded onchain or when you need DEX-specific metrics like total reserve in USD. Choose this over sibling endpoints for other chains (Base, Ethereum, Solana) when your token contract is deployed on Monad.

## Known failure modes

- Token contract address not found on Monad network — returns empty or null data for that address
- Inactive token with no recent DEX trades — may return stale or null price unless include_inactive_source is enabled
- Invalid contract address format — may return an error or empty result
- Network-level outage or rate limiting on the CoinGecko Pro API — returns HTTP 429 or 5xx
- mcap_fdv_fallback not set and no onchain market cap available — market cap field absent from response

## 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 data on the Monad network, along with optional fields for 24-hour trading volume, market capitalization, FDV (fully diluted valuation), 24-hour price change percentage, and total reserve in USD, keyed by the provided token 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-monad-network-6bb71a5f/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)