Add scraped Polymarket documentation (117 files)
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Etherdrake
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> ## Documentation Index
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> Fetch the complete documentation index at: https://docs.polymarket.com/llms.txt
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> Use this file to discover all available pages before exploring further.
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# L1 Methods
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> These methods require a wallet signer (private key) but do not require user API credentials. Use these for initial setup.
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## Client Initialization
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L1 methods require the client to initialize with a signer.
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<Tabs>
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<Tab title="TypeScript">
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```typescript theme={null}
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import { ClobClient } from "@polymarket/clob-client";
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import { Wallet } from "ethers";
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const signer = new Wallet(process.env.PRIVATE_KEY);
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const client = new ClobClient(
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"https://clob.polymarket.com",
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137,
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signer // Signer required for L1 methods
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);
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// Ready to create user API credentials
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const apiKey = await client.createApiKey();
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```
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</Tab>
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<Tab title="Python">
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```python theme={null}
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from py_clob_client.client import ClobClient
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import os
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private_key = os.getenv("PRIVATE_KEY")
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client = ClobClient(
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host="https://clob.polymarket.com",
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chain_id=137,
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key=private_key # Signer required for L1 methods
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)
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# Ready to create user API credentials
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api_key = await client.create_api_key()
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```
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</Tab>
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</Tabs>
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<Warning>
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**Security:** Never commit private keys to version control. Always use environment variables or secure key management systems.
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</Warning>
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***
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## API Key Management
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***
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### createApiKey()
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Creates a new API key (L2 credentials) for the wallet signer. This generates a new set of credentials that can be used for L2 authenticated requests.
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Each wallet can only have one active API key at a time. Creating a new key invalidates the previous one.
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```typescript Signature theme={null}
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async createApiKey(nonce?: number): Promise<ApiKeyCreds>
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```
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```typescript Params theme={null}
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`nonce` (optional): Custom nonce for deterministic key generation. If not provided, a default derivation is used.
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```
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```typescript Response theme={null}
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interface ApiKeyCreds {
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apiKey: string;
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secret: string;
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passphrase: string;
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}
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```
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***
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### deriveApiKey()
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Derives an existing API key (L2 credentials) using a specific nonce. If you've already created API credentials with a particular nonce, this method will return the same credentials again.
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```typescript Signature theme={null}
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async deriveApiKey(nonce?: number): Promise<ApiKeyCreds>
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```
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```typescript Params theme={null}
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`nonce` (optional): Custom nonce for deterministic key generation. If not provided, a default derivation is used.
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```
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```typescript Response theme={null}
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interface ApiKeyCreds {
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apiKey: string;
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secret: string;
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passphrase: string;
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}
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```
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***
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### createOrDeriveApiKey()
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Convenience method that attempts to derive an API key with the default nonce, or creates a new one if it doesn't exist. This is the recommended method for initial setup if you're unsure if credentials already exist.
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```typescript Signature theme={null}
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async createOrDeriveApiKey(nonce?: number): Promise<ApiKeyCreds>
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```
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```typescript Params theme={null}
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`nonce` (optional): Custom nonce for deterministic key generation. If not provided, a default derivation is used.
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```
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```typescript Response theme={null}
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interface ApiKeyCreds {
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apiKey: string;
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secret: string;
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passphrase: string;
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}
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```
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***
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## Order Signing
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### createOrder()
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Create and sign a limit order locally without posting it to the CLOB.
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Use this when you want to sign orders in advance or implement custom order submission logic.
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Place order via L2 methods postOrder or postOrders.
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```typescript Signature theme={null}
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async createOrder(
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userOrder: UserOrder,
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options?: Partial<CreateOrderOptions>
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): Promise<SignedOrder>
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```
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```typescript Params theme={null}
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interface UserOrder {
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tokenID: string;
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price: number;
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size: number;
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side: Side;
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feeRateBps?: number;
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nonce?: number;
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expiration?: number;
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taker?: string;
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}
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interface CreateOrderOptions {
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tickSize: TickSize;
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negRisk?: boolean;
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}
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```
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```typescript Response theme={null}
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interface SignedOrder {
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salt: string;
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maker: string;
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signer: string;
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taker: string;
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tokenId: string;
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makerAmount: string;
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takerAmount: string;
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side: number; // 0 = BUY, 1 = SELL
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expiration: string;
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nonce: string;
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feeRateBps: string;
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signatureType: number;
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signature: string;
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}
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```
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***
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### createMarketOrder()
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Create and sign a market order locally without posting it to the CLOB.
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Use this when you want to sign orders in advance or implement custom order submission logic.
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Place orders via L2 methods postOrder or postOrders.
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```typescript Signature theme={null}
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async createMarketOrder(
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userMarketOrder: UserMarketOrder,
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options?: Partial<CreateOrderOptions>
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): Promise<SignedOrder>
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```
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```typescript Params theme={null}
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interface UserMarketOrder {
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tokenID: string;
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amount: number; // BUY: dollar amount, SELL: number of shares
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side: Side;
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price?: number; // Optional price limit
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feeRateBps?: number;
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nonce?: number;
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taker?: string;
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orderType?: OrderType.FOK | OrderType.FAK;
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}
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```
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```typescript Response theme={null}
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interface SignedOrder {
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salt: string;
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maker: string;
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signer: string;
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taker: string;
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tokenId: string;
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makerAmount: string;
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takerAmount: string;
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side: number; // 0 = BUY, 1 = SELL
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expiration: string;
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nonce: string;
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feeRateBps: string;
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signatureType: number;
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signature: string;
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}
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```
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***
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## Troubleshooting
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<AccordionGroup>
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<Accordion title="Error: INVALID_SIGNATURE">
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Your wallet's private key is incorrect or improperly formatted.
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**Solution:**
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* Verify your private key is a valid hex string (starts with "0x")
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* Ensure you're using the correct key for the intended address
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* Check that the key has proper permissions
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</Accordion>
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<Accordion title="Error: NONCE_ALREADY_USED">
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The nonce you provided has already been used to create an API key.
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**Solution:**
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* Use `deriveApiKey()` with the same nonce to retrieve existing credentials
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* Or use a different nonce with `createApiKey()`
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</Accordion>
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<Accordion title="Error: Invalid Funder Address">
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Your funder address is incorrect or doesn't match your wallet.
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**Solution:** Check your Polymarket profile address at [polymarket.com/settings](https://polymarket.com/settings).
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If it does not exist or user has never logged into Polymarket.com, deploy it first before creating L2 authentication.
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</Accordion>
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<Accordion title="Lost API credentials but have nonce">
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```typescript theme={null}
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// Use deriveApiKey with the original nonce
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const recovered = await client.deriveApiKey(originalNonce);
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```
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</Accordion>
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<Accordion title="Lost both credentials and nonce">
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Unfortunately, there's no way to recover lost API credentials without the nonce. You'll need to create new credentials:
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```typescript theme={null}
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// Create fresh credentials with a new nonce
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const newCreds = await client.createApiKey();
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// Save the nonce this time!
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```
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</Accordion>
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</AccordionGroup>
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***
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## See Also
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<CardGroup cols={2}>
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<Card title="Understand CLOB Authentication" icon="shield" href="/developers/CLOB/authentication">
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Deep dive into L1 and L2 authentication
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</Card>
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<Card title="CLOB Quickstart Guide" icon="hammer" href="/developers/CLOB/quickstart">
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Initialize the CLOB quickly and place your first order.
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</Card>
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<Card title="Public Methods" icon="globe" href="/developers/CLOB/clients/methods-l2">
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Access market data, orderbooks, and prices.
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</Card>
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<Card title="L2 Methods" icon="lock" href="/developers/CLOB/clients/methods-l2">
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Manage and close orders. Creating orders requires signer.
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</Card>
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</CardGroup>
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