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PolymarketDocumentation/docs/developers/CLOB/clients/methods-l2.md
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> ## Documentation Index
> Fetch the complete documentation index at: https://docs.polymarket.com/llms.txt
> Use this file to discover all available pages before exploring further.
# L2 Methods
> These methods require user API credentials (L2 headers). Use these for placing trades and managing your positions.
## Client Initialization
L2 methods require the client to initialize with a signer, signature type, API credentials, and funder address.
<Tabs>
<Tab title="TypeScript">
```typescript theme={null}
import { ClobClient } from "@polymarket/clob-client-v2";
import { createWalletClient, http } from "viem";
import { privateKeyToAccount } from "viem/accounts";
const account = privateKeyToAccount(process.env.PRIVATE_KEY as `0x${string}`);
const signer = createWalletClient({ account, transport: http() });
const apiCreds = {
key: process.env.API_KEY,
secret: process.env.SECRET,
passphrase: process.env.PASSPHRASE,
};
const depositWalletAddress = process.env.DEPOSIT_WALLET_ADDRESS!;
const client = new ClobClient({
host: "https://clob.polymarket.com",
chain: 137,
signer,
creds: apiCreds,
signatureType: 3, // POLY_1271
funderAddress: depositWalletAddress,
});
// Ready to send authenticated requests
const order = await client.postOrder(signedOrder);
```
</Tab>
<Tab title="Python">
```python theme={null}
from py_clob_client_v2 import ClobClient
from py_clob_client_v2 import ApiCreds
import os
api_creds = ApiCreds(
api_key=os.getenv("API_KEY"),
api_secret=os.getenv("SECRET"),
api_passphrase=os.getenv("PASSPHRASE")
)
client = ClobClient(
host="https://clob.polymarket.com",
chain_id=137,
key=os.getenv("PRIVATE_KEY"),
creds=api_creds,
signature_type=3, # POLY_1271
funder=os.getenv("DEPOSIT_WALLET_ADDRESS")
)
# Ready to send authenticated requests
order = client.post_order(signed_order)
```
</Tab>
</Tabs>
***
## Order Creation and Management
***
### createAndPostOrder
Convenience method that creates, signs, and posts a limit order in a single call. Use when you want to buy or sell at a specific price.
```typescript Signature theme={null}
async createAndPostOrder(
userOrder: UserOrder,
options?: Partial<CreateOrderOptions>,
orderType?: OrderType.GTC | OrderType.GTD, // Defaults to GTC
): Promise<OrderResponse>
```
**Params**
<ResponseField name="tokenID" type="string">
The token ID of the outcome to trade.
</ResponseField>
<ResponseField name="price" type="number">
The limit price for the order.
</ResponseField>
<ResponseField name="size" type="number">
The size of the order.
</ResponseField>
<ResponseField name="side" type="Side">
The side of the order (buy or sell).
</ResponseField>
<ResponseField name="expiration" type="number">
Optional expiration timestamp for the order.
</ResponseField>
<ResponseField name="tickSize" type="TickSize">
Tick size for the order. One of `"0.1"`, `"0.01"`, `"0.001"`, `"0.0001"`.
</ResponseField>
<ResponseField name="negRisk" type="boolean">
Optional. Whether the market uses negative risk.
</ResponseField>
**Response**
<ResponseField name="success" type="boolean">
Whether the order was successfully placed.
</ResponseField>
<ResponseField name="errorMsg" type="string">
Error message if the order was not successful.
</ResponseField>
<ResponseField name="orderID" type="string">
The ID of the placed order.
</ResponseField>
<ResponseField name="transactionsHashes" type="string[]">
Array of transaction hashes associated with the order.
</ResponseField>
<ResponseField name="status" type="string">
The current status of the order.
</ResponseField>
<ResponseField name="takingAmount" type="string">
The amount being taken in the order.
</ResponseField>
<ResponseField name="makingAmount" type="string">
The amount being made in the order.
</ResponseField>
***
### createAndPostMarketOrder
Convenience method that creates, signs, and posts a market order in a single call. Use when you want to buy or sell at the current market price.
```typescript Signature theme={null}
async createAndPostMarketOrder(
userMarketOrder: UserMarketOrder,
options?: Partial<CreateOrderOptions>,
orderType?: OrderType.FOK | OrderType.FAK, // Defaults to FOK
): Promise<OrderResponse>
```
**Params**
<ResponseField name="tokenID" type="string">
The token ID of the outcome to trade.
</ResponseField>
<ResponseField name="amount" type="number">
The amount for the market order.
</ResponseField>
<ResponseField name="side" type="Side">
The side of the order (buy or sell).
</ResponseField>
<ResponseField name="price" type="number">
Optional price hint for the market order.
</ResponseField>
<ResponseField name="orderType" type="OrderType.FOK | OrderType.FAK">
Optional order type override. Defaults to FOK.
</ResponseField>
**Response**
<ResponseField name="success" type="boolean">
Whether the order was successfully placed.
</ResponseField>
<ResponseField name="errorMsg" type="string">
Error message if the order was not successful.
</ResponseField>
<ResponseField name="orderID" type="string">
The ID of the placed order.
</ResponseField>
<ResponseField name="transactionsHashes" type="string[]">
Array of transaction hashes associated with the order.
</ResponseField>
<ResponseField name="status" type="string">
The current status of the order.
</ResponseField>
<ResponseField name="takingAmount" type="string">
The amount being taken in the order.
</ResponseField>
<ResponseField name="makingAmount" type="string">
The amount being made in the order.
</ResponseField>
***
### postOrder
Posts a pre-signed order to the CLOB. Use with [`createOrder()`](/trading/clients/l1#createorder) or [`createMarketOrder()`](/trading/clients/l1#createmarketorder) from L1 methods.
```typescript Signature theme={null}
async postOrder(
order: SignedOrder,
orderType?: OrderType, // Defaults to GTC
postOnly?: boolean, // Defaults to false
): Promise<OrderResponse>
```
***
### postOrders
Posts up to 15 pre-signed orders in a single batch.
```typescript Signature theme={null}
async postOrders(
args: PostOrdersArgs[],
): Promise<OrderResponse[]>
```
**Params**
<ResponseField name="order" type="SignedOrder">
The pre-signed order to post.
</ResponseField>
<ResponseField name="orderType" type="OrderType">
The order type (e.g. GTC, FOK, FAK).
</ResponseField>
<ResponseField name="postOnly" type="boolean">
Optional. Whether to post the order as post-only. Defaults to false.
</ResponseField>
***
### cancelOrder
Cancels a single open order.
```typescript Signature theme={null}
async cancelOrder(orderID: string): Promise<CancelOrdersResponse>
```
**Response**
<ResponseField name="canceled" type="string[]">
Array of order IDs that were successfully canceled.
</ResponseField>
<ResponseField name="not_canceled" type="Record<string, any>">
Map of order IDs to reasons why they could not be canceled.
</ResponseField>
***
### cancelOrders
Cancels multiple orders in a single batch.
```typescript Signature theme={null}
async cancelOrders(orderIDs: string[]): Promise<CancelOrdersResponse>
```
***
### cancelAll
Cancels all open orders.
```typescript Signature theme={null}
async cancelAll(): Promise<CancelOrdersResponse>
```
***
### cancelMarketOrders
Cancels all open orders for a specific market.
```typescript Signature theme={null}
async cancelMarketOrders(
payload: OrderMarketCancelParams
): Promise<CancelOrdersResponse>
```
**Params**
<ResponseField name="market" type="string">
Optional. The market condition ID to cancel orders for.
</ResponseField>
<ResponseField name="asset_id" type="string">
Optional. The token ID to cancel orders for.
</ResponseField>
***
## Order and Trade Queries
***
### getOrder
Get details for a specific order by ID.
```typescript Signature theme={null}
async getOrder(orderID: string): Promise<OpenOrder>
```
**Response**
<ResponseField name="id" type="string">
The unique order ID.
</ResponseField>
<ResponseField name="status" type="string">
The current status of the order.
</ResponseField>
<ResponseField name="owner" type="string">
The API key of the order owner.
</ResponseField>
<ResponseField name="maker_address" type="string">
The on-chain address of the order maker.
</ResponseField>
<ResponseField name="market" type="string">
The market condition ID the order belongs to.
</ResponseField>
<ResponseField name="asset_id" type="string">
The token ID the order is for.
</ResponseField>
<ResponseField name="side" type="string">
The side of the order (BUY or SELL).
</ResponseField>
<ResponseField name="original_size" type="string">
The original size of the order when it was placed.
</ResponseField>
<ResponseField name="size_matched" type="string">
The amount of the order that has been matched so far.
</ResponseField>
<ResponseField name="price" type="string">
The limit price of the order.
</ResponseField>
<ResponseField name="associate_trades" type="string[]">
Array of trade IDs associated with this order.
</ResponseField>
<ResponseField name="outcome" type="string">
The outcome label for the order's token.
</ResponseField>
<ResponseField name="created_at" type="number">
Unix timestamp of when the order was created.
</ResponseField>
<ResponseField name="expiration" type="string">
The expiration time of the order.
</ResponseField>
<ResponseField name="order_type" type="string">
The order type (e.g. GTC, FOK, FAK, GTD).
</ResponseField>
***
### getOpenOrders
Get all your open orders.
```typescript Signature theme={null}
async getOpenOrders(
params?: OpenOrderParams,
only_first_page?: boolean,
): Promise<OpenOrder[]>
```
**Params**
<ResponseField name="id" type="string">
Optional. Filter by order ID.
</ResponseField>
<ResponseField name="market" type="string">
Optional. Filter by market condition ID.
</ResponseField>
<ResponseField name="asset_id" type="string">
Optional. Filter by token ID.
</ResponseField>
***
### getTrades
Get your trade history (filled orders).
```typescript Signature theme={null}
async getTrades(
params?: TradeParams,
only_first_page?: boolean,
): Promise<Trade[]>
```
**Params**
<ResponseField name="id" type="string">
Optional. Filter by trade ID.
</ResponseField>
<ResponseField name="maker_address" type="string">
Optional. Filter by maker address.
</ResponseField>
<ResponseField name="market" type="string">
Optional. Filter by market condition ID.
</ResponseField>
<ResponseField name="asset_id" type="string">
Optional. Filter by token ID.
</ResponseField>
<ResponseField name="before" type="string">
Optional. Return trades before this timestamp.
</ResponseField>
<ResponseField name="after" type="string">
Optional. Return trades after this timestamp.
</ResponseField>
**Response**
<ResponseField name="id" type="string">
The unique trade ID.
</ResponseField>
<ResponseField name="taker_order_id" type="string">
The order ID of the taker side.
</ResponseField>
<ResponseField name="market" type="string">
The market condition ID for the trade.
</ResponseField>
<ResponseField name="asset_id" type="string">
The token ID for the trade.
</ResponseField>
<ResponseField name="side" type="Side">
The side of the trade (BUY or SELL).
</ResponseField>
<ResponseField name="size" type="string">
The size of the trade.
</ResponseField>
<ResponseField name="fee_rate_bps" type="string">
The fee rate in basis points.
</ResponseField>
<ResponseField name="price" type="string">
The price at which the trade was matched.
</ResponseField>
<ResponseField name="status" type="string">
The current status of the trade.
</ResponseField>
<ResponseField name="match_time" type="string">
The time at which the trade was matched.
</ResponseField>
<ResponseField name="last_update" type="string">
The time of the last update to this trade.
</ResponseField>
<ResponseField name="outcome" type="string">
The outcome label for the traded token.
</ResponseField>
<ResponseField name="bucket_index" type="number">
The bucket index for the trade.
</ResponseField>
<ResponseField name="owner" type="string">
The API key of the trade owner.
</ResponseField>
<ResponseField name="maker_address" type="string">
The on-chain address of the maker.
</ResponseField>
<ResponseField name="maker_orders" type="MakerOrder[]">
Array of maker order objects that participated in this trade. Each
`MakerOrder` contains the following fields:
</ResponseField>
<ResponseField name="maker_orders[].order_id" type="string">
The maker order ID.
</ResponseField>
<ResponseField name="maker_orders[].owner" type="string">
The API key of the maker order owner.
</ResponseField>
<ResponseField name="maker_orders[].maker_address" type="string">
The on-chain address of the maker order maker.
</ResponseField>
<ResponseField name="maker_orders[].matched_amount" type="string">
The amount matched for this maker order.
</ResponseField>
<ResponseField name="maker_orders[].price" type="string">
The price of the maker order.
</ResponseField>
<ResponseField name="maker_orders[].fee_rate_bps" type="string">
The fee rate in basis points for the maker order.
</ResponseField>
<ResponseField name="maker_orders[].asset_id" type="string">
The token ID for the maker order.
</ResponseField>
<ResponseField name="maker_orders[].outcome" type="string">
The outcome label for the maker order's token.
</ResponseField>
<ResponseField name="maker_orders[].side" type="Side">
The side of the maker order (BUY or SELL).
</ResponseField>
<ResponseField name="transaction_hash" type="string">
The on-chain transaction hash for the trade.
</ResponseField>
<ResponseField name="trader_side" type="&#x22;TAKER&#x22; | &#x22;MAKER&#x22;">
Whether the authenticated user is the taker or a maker in this trade.
</ResponseField>
***
### getTradesPaginated
Get trade history with pagination for large result sets.
```typescript Signature theme={null}
async getTradesPaginated(
params?: TradeParams,
): Promise<TradesPaginatedResponse>
```
**Response**
<ResponseField name="trades" type="Trade[]">
Array of trade objects for the current page.
</ResponseField>
<ResponseField name="limit" type="number">
The maximum number of trades returned per page.
</ResponseField>
<ResponseField name="count" type="number">
The total number of trades matching the query.
</ResponseField>
***
## Balance and Allowances
***
### getBalanceAllowance
Get your balance and allowance for specific tokens.
```typescript Signature theme={null}
async getBalanceAllowance(
params?: BalanceAllowanceParams
): Promise<BalanceAllowanceResponse>
```
**Params**
<ResponseField name="asset_type" type="AssetType">
The type of asset to query. One of `"COLLATERAL"` or `"CONDITIONAL"`.
</ResponseField>
<ResponseField name="token_id" type="string">
Optional. The token ID to query (required when `asset_type` is `CONDITIONAL`).
</ResponseField>
**Response**
<ResponseField name="balance" type="string">
The current balance for the specified asset.
</ResponseField>
<ResponseField name="allowance" type="string">
The current allowance for the specified asset.
</ResponseField>
***
### updateBalanceAllowance
Updates the cached balance and allowance for specific tokens.
```typescript Signature theme={null}
async updateBalanceAllowance(
params?: BalanceAllowanceParams
): Promise<void>
```
***
## API Key Management
***
### getApiKeys
Get all API keys associated with your account.
```typescript Signature theme={null}
async getApiKeys(): Promise<ApiKeysResponse>
```
**Response**
<ResponseField name="apiKeys" type="ApiKeyCreds[]">
Array of API key credential objects associated with the account.
</ResponseField>
***
### deleteApiKey
Deletes (revokes) the currently authenticated API key.
```typescript Signature theme={null}
async deleteApiKey(): Promise<any>
```
***
## Notifications
***
### getNotifications
Retrieves all event notifications for the authenticated user. Records are automatically removed after 48 hours.
```typescript Signature theme={null}
async getNotifications(): Promise<Notification[]>
```
**Response**
<ResponseField name="id" type="number">
Unique notification ID.
</ResponseField>
<ResponseField name="owner" type="string">
The user's API key, or an empty string for global notifications.
</ResponseField>
<ResponseField name="payload" type="any">
Type-specific payload data for the notification.
</ResponseField>
<ResponseField name="timestamp" type="number">
Optional Unix timestamp of when the notification was created.
</ResponseField>
<ResponseField name="type" type="number">
Notification type (see below).
</ResponseField>
| Name | Value | Description |
| ------------------ | ----- | ---------------------------------------- |
| Order Cancellation | `1` | User's order was canceled |
| Order Fill | `2` | User's order was filled (maker or taker) |
| Market Resolved | `4` | Market was resolved |
***
### dropNotifications
Mark notifications as read/dismissed.
```typescript Signature theme={null}
async dropNotifications(params?: DropNotificationParams): Promise<void>
```
**Params**
<ResponseField name="ids" type="string[]">
Array of notification IDs to dismiss.
</ResponseField>
***
## See Also
<CardGroup cols={2}>
<Card title="Authentication" icon="shield" href="/api-reference/authentication">
Deep dive into L1 and L2 authentication.
</Card>
<Card title="L1 Methods" icon="key" href="/trading/clients/l1">
Sign orders and derive API credentials with your private key.
</Card>
<Card title="Public Methods" icon="globe" href="/trading/clients/public">
Read market data and orderbooks without auth.
</Card>
<Card title="WebSocket" icon="bolt" href="/market-data/websocket/overview">
Real-time market data streaming.
</Card>
</CardGroup>