> ## Documentation Index
> Fetch the complete documentation index at: https://docs.b3os.org/llms.txt
> Use this file to discover all available pages before exploring further.

# Aerodrome Add Liquidity

Adds liquidity to an Aerodrome pool on Base. Supports both stable (sAMM) and volatile (vAMM) pools. Handles token approvals automatically. IMPORTANT: Requires ERC20 tokens, not native ETH. Use wrap-eth first to convert ETH to WETH (0x4200000000000000000000000000000000000006). Use aerodrome-get-lp-positions to check existing positions first. Ideal for: yield farming, liquidity provision, DeFi automation.

![Aerodrome Add Liquidity logo](https://aerodrome.finance/images/AERO/logo-512.png)
Catalog action EVM Onchain wallet Gas send

Adds liquidity to an Aerodrome pool on Base. Supports both stable (sAMM) and volatile (vAMM) pools. Handles token approvals automatically. IMPORTANT: Requires ERC20 tokens, not native ETH. Use wrap-eth first to convert ETH to WETH (0x4200000000000000000000000000000000000006). Use aerodrome-get-lp-positions to check existing positions first. Ideal for: yield farming, liquidity provision, DeFi automation.

**Review wallet and value movement**

This action can require a wallet connector, gas, token movement, or an external side effect. Test with simulation or a controlled amount before using it in a live workflow.

## At a Glance

| Field | Value |
| --- | --- |
| Action ID | `aerodrome-add-liquidity` |
| Category | EVM Onchain |
| Connector | `wallet` |
| Requires gas | Yes |
| Funds movement | `send` |
| Tags | `defi`, `liquidity`, `base`, `onchain`, `write` |

## Payload Schema

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `chainId` | `number` | Yes | Chain ID. Supported: Base \(8453\) |
| `tokenA` | `string` | Yes | First token address |
| `tokenB` | `string` | Yes | Second token address |
| `stable` | `boolean` | Yes | True for stable \(sAMM\) pool, false for volatile \(vAMM\) pool |
| `amountADesired` | `string` | Yes | Desired amount of tokenA in raw units |
| `amountBDesired` | `string` | Yes | Desired amount of tokenB in raw units |
| `slippageBps` | `number` | No | Slippage tolerance in basis points \(default: 50 = 0.5%\) |
| `deadlineMinutes` | `number` | No | Transaction deadline in minutes from now \(default: 20\) |

## Result Schema

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `transactionHash` | `string` | Yes | - |
| `poolAddress` | `string` | Yes | - |
| `stable` | `boolean` | No | - |

## Examples

**Workflow node**

```json
{
  "type": "aerodrome-add-liquidity",
  "payload": {
    "chainId": 8453,
    "tokenA": "ETH",
    "tokenB": "ETH",
    "stable": true,
    "amountADesired": "1000000",
    "amountBDesired": "1000000"
  },
  "children": [],
  "connector": {
    "type": "wallet",
    "id": "conn_wallet"
  }
}
```
  **Test with API**

```bash
curl -X POST "https://api.b3os.org/v1/actions/aerodrome-add-liquidity/test" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "inputs": {
    "chainId": 8453,
    "tokenA": "ETH",
    "tokenB": "ETH",
    "stable": true,
    "amountADesired": "1000000",
    "amountBDesired": "1000000"
  }
}'
```

**Use expressions for dynamic values**

Payload fields can use workflow expressions such as `{{$trigger.body.amount}}`, `{{$nodes.fetch.result.price}}`, and `{{$props.asset}}` when the value should come from a trigger, prior node, or reusable workflow prop.