EVM DEXes

This endpoint returns a list of all decentralized exchanges (DEXes) available on EVM-compatible chains. It provides essential information about each DEX including its chain ID, contract address, name, and underlying algorithm.

Business Value

• DEX Discovery: Easily discover all DEXes operating across different EVM chains in one request
• Integration Planning: Get comprehensive DEX information needed for multi-chain DeFi integrations
• Algorithm Analysis: Understand the distribution of different AMM algorithms (Uniswap V3, Algebra, etc.) across chains
• Chain Coverage: See which DEXes operate on specific chains like Base (chainId: 8453)
• Contract Verification: Access verified DEX contract addresses for secure integrations

Endpoint Details

URL:

https://opabinia.cambrian.network/api/v1/evm/dexes

Method: GET
Authentication: Required via X-API-Key header

Query Parameters

Response Field Descriptions

Examples

1. Get All EVM DEXes

Retrieve the complete list of DEXes across all supported EVM chains.

curl -X GET "https://opabinia.cambrian.network/api/v1/evm/dexes" \
  -H "X-API-Key: YOUR_API_KEY" \
  -H "Content-Type: application/json"

Response:

{
  "columns": [
    {
      "name": "chainId",
      "type": "UInt32"
    },
    {
      "name": "address",
      "type": "FixedString(42)"
    },
    {
      "name": "name",
      "type": "String"
    },
    {
      "name": "algorithm",
      "type": "LowCardinality(FixedString(10))"
    }
  ],
  "data": [
    [
      8453,
      "0x7b72c4002ea7c276dd717b96b20f4956c5c904e7",
      "9mm",
      "univ3"
    ],
    [
      8453,
      "0x420dd381b31aef6683db6b902084cb0ffece40da",
      "Aerodrome",
      "na"
    ],
    [
      8453,
      "0x5e7bb104d84c7cb9b682aac2f3d509f5f406809a",
      "Aerodrome",
      "univ3"
    ],
    [
      8453,
      "0x9592cd9b267748cbfbde90ac9f7df3c437a6d51b",
      "Aerodrome",
      "univ3"
    ],
    [
      8453,
      "0x0fd83557b2be93617c9c1b6fd549401c74558c",
      "AlienBase",
      "univ3"
    ]
  ],
  "rows": 38
  // ... additional rows omitted for brevity
}

The response shows 38 DEXes currently available, with the majority operating on Base chain (chainId: 8453). Most DEXes use the Uniswap V3 algorithm (univ3), with some using Algebra (algb) or marked as not applicable (na).

x402 Payment Option

This endpoint supports pay-per-use access via the x402 payment protocol (v2) — pay $0.05 USDC per request using blockchain micropayments. No API key required.

Quick Start (TypeScript)

npm install @x402/fetch @x402/evm viem

import { x402Client } from "@x402/core/client";
import { ExactEvmScheme } from "@x402/evm/exact/client";
import { wrapFetchWithPayment } from "@x402/fetch";
import { privateKeyToAccount } from "viem/accounts";

const signer = privateKeyToAccount(process.env.EVM_PRIVATE_KEY as `0x${string}`);
const client = new x402Client();
client.register("eip155:*", new ExactEvmScheme(signer));

const fetchWithPayment = wrapFetchWithPayment(fetch, client);
const response = await fetchWithPayment(
  "https://deep42.cambrian.network/api/v1/evm/dexes"
);
const data = await response.json();

Quick Start (Python)

pip install "x402[httpx]"

import asyncio, os
from eth_account import Account
from x402 import x402Client
from x402.http.clients import x402HttpxClient
from x402.mechanisms.evm import EthAccountSigner
from x402.mechanisms.evm.exact.register import register_exact_evm_client

async def main():
    client = x402Client()
    account = Account.from_key(os.getenv("EVM_PRIVATE_KEY"))
    register_exact_evm_client(client, EthAccountSigner(account))

    async with x402HttpxClient(client) as http:
        response = await http.get("https://deep42.cambrian.network/api/v1/evm/dexes")
        print(response.json())

asyncio.run(main())

Payment Flow

1. Send a normal request to the endpoint (no API key needed)
2. Server returns 402 Payment Required with payment details
3. The x402 SDK automatically signs a payment authorization with your wallet
4. The SDK resubmits the request with the signed payment
5. Server verifies payment and returns the API response

The x402 SDK handles steps 2–5 automatically.

Network: Base (chain ID 8453) | Currency: USDC | Price: $0.05 per request

Related Endpoints

• /api/v1/evm/aero/v2/pools - Returns a paginated list of Aerodrome liquidity pools with summary metrics
• /api/v1/evm/aero/v2/pool - Get detailed information for a specific Aerodrome V2 pool address
• /api/v1/evm/aero/v2/pool-volume - Get hourly volume data for Aerodrome pools over specific timeframes
• /api/v1/evm/aero/v2/fee-metrics - Shows daily historical fee data for Aerodrome pools over time