# CoinGecko Pro Onchain Token Price — Base Network (0x00c9c681)

> CoinGecko Pro Onchain Token Price — Base Network (0x00c9c681) is a paid API for AI agents from pro-api.coingecko.com, paid per call via x402, $0.010000/call, status unknown (last checked 2026-09-15).

Returns real-time onchain DEX price and market data for a specific token contract (0x00c9c681d803d27d9c2e1e8612de073db0c5c390) on the Base network via CoinGecko Pro.

## Facts

- Endpoint: GET https://pro-api.coingecko.com/api/v3/x402/onchain/simple/networks/base/token_price/0x00c9c681d803d27d9c2e1e8612de073db0c5c390
- Price: $0.010000/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/pro-api-coingecko-com-ee5a86cc
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_AAN0b-PdNkq6kMMq4H-Pk

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 pro-api-coingecko-com-ee5a86cc
```

Example prompt: What's the current onchain price and 24-hour price change for the token at contract 0x00c9c681d803d27d9c2e1e8612de073db0c5c390 on the Base network, and can you also include its market cap and 24-hour trading volume from CoinGecko's onchain DEX data?

## When to prefer this

Use this endpoint when you need real-time onchain DEX price data specifically for the token at 0x00c9c681d803d27d9c2e1e8612de073db0c5c390 on the Coinbase Base network, as opposed to CoinGecko's centralized exchange price feeds. Ideal for DeFi applications, arbitrage monitoring, or portfolio trackers that require DEX-sourced pricing rather than CEX aggregates.

## Known failure modes

- Token contract address not found on Base network — returns empty or null price data
- Network unavailable or CoinGecko Pro API downtime — HTTP 503
- Invalid or malformed contract address — HTTP 400 or empty response
- Token is inactive and include_inactive_source not set — returns no data
- Payment not processed (x402 payment required) — HTTP 402

## 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 with the current onchain DEX price of the token in USD, and optionally 24-hour volume, market cap, 24-hour price change percentage, and total reserve in USD — sourced from DEX liquidity pools on the Base network.

## Example request

```json
{
 "input": {
  "type": "http",
  "method": "GET",
  "queryParams": {
   "include_24hr_vol": true,
   "include_market_cap": true,
   "include_inactive_source": true,
   "include_24hr_price_change": true
  }
 },
 "output": {
  "type": "object",
  "example": {
   "0x00c9c681d803d27d9c2e1e8612de073db0c5c390": {
    "usd": 1.25,
    "usd_24h_vol": 50000,
    "usd_24h_change": 2.5,
    "usd_market_cap": 500000000
   }
  }
 }
}
```

## 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"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "data"
 ],
 "properties": {
  "data": {
   "type": "object",
   "required": [
    "id",
    "type",
    "attributes"
   ],
   "properties": {
    "id": {
     "type": "string"
    },
    "type": {
     "type": "string"
    },
    "attributes": {
     "type": "object",
     "required": [
      "token_prices"
     ],
     "properties": {
      "token_prices": {
       "type": "object",
       "required": [
        "0x00c9c681d803d27d9c2e1e8612de073db0c5c390"
       ],
       "properties": {
        "0x00c9c681d803d27d9c2e1e8612de073db0c5c390": {
         "type": "string"
        }
       }
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/pro-api-coingecko-com-ee5a86cc/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)