Add create earn account use case (v2)

v2/create_earn_account/TESTING.md

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+# Testing Guide
+
+Test both TypeScript and Python versions before pushing.
+
+## Prerequisites
+
+1. Create `.env` files in both directories with your actual values:
+   - `COMPASS_API_KEY`: Your Compass API key
+   - `WALLET_ADDRESS`: Your wallet address (0x...)
+
+## Test TypeScript
+
+```bash
+cd typescript
+
+# Make sure .env file exists (copy from .env.example and fill in values)
+cp .env.example .env
+# Edit .env with your actual values
+
+# Run the script
+npm run dev
+```
+
+**Expected output:**
+- Earn Account Address: `0x...`
+- Unsigned Transaction: `{ chainId, data, from, gas, ... }`
+
+## Test Python
+
+```bash
+cd python
+
+# Install dependencies (if using uv or pip)
+pip install compass-api-sdk python-dotenv
+# OR if using uv:
+# uv pip install compass-api-sdk python-dotenv
+
+# Make sure .env file exists
+cp .env.example .env
+# Edit .env with your actual values
+
+# Run the script
+python main.py
+```
+
+**Expected output:**
+- Earn Account Address: `0x...`
+- Unsigned Transaction: `{ chainId, data, from, gas, ... }`
+
+## Verify Results
+
+Both scripts should:
+1. ✅ Successfully connect to Compass API
+2. ✅ Return an Earn Account address
+3. ✅ Return an unsigned transaction object
+4. ✅ No errors
+
+If you get errors, check:
+- API key is valid
+- Wallet address is correct format (0x...)
+- Network connection
+- SDK versions are up to date
+

v2/create_earn_account/python/.env.example

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+# Compass API Configuration
+COMPASS_API_KEY=your_compass_api_key_here
+
+# Wallet Configuration
+# The wallet address that will own the Earn Account and pay for gas
+WALLET_ADDRESS=0xYourWalletAddress

v2/create_earn_account/python/README.md

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+# Create Earn Account - Python Example
+
+This example demonstrates how to create an Earn Account using the Compass API Python SDK.
+
+## Prerequisites
+
+- Python 3.9+ installed
+- A Compass API key ([Get one here](https://auth-compasslabs-ai.auth.eu-west-2.amazoncognito.com/login?client_id=2l366l2b3dok7k71nbnu8r1u36&redirect_uri=https://api.compasslabs.ai/auth/callback&response_type=code&scope=openid+email+profile))
+
+## Setup
+
+1. Install dependencies (make sure you have the latest version):
+```bash
+pip install --upgrade compass-api-sdk python-dotenv
+```
+
+Or if using `uv`:
+```bash
+uv pip install compass-api-sdk python-dotenv
+```
+
+**Note:** This example requires `compass-api-sdk` version 2.0.1 or later (which includes the `earn` endpoints). Make sure to upgrade if you have an older version.
+
+2. Copy the example environment file:
+```bash
+cp .env.example .env
+```
+
+3. Fill in your `.env` file with your actual values:
+   - `COMPASS_API_KEY`: Your Compass API key
+   - `WALLET_ADDRESS`: Your wallet address (will own the Earn Account)
+
+## Run
+
+```bash
+python main.py
+```
+
+## What This Does
+
+This example gets an unsigned transaction to create an Earn Account on Base. The transaction must be signed and broadcast separately.
+
+## Notes
+
+- **No Gas Sponsorship**: The `owner` (who controls the account) is also the `sender` (who pays for gas). Note that Earn Account creation can also be done WITH gas sponsorship (using the `/gas_sponsorship/prepare` endpoint), but this example does not use gas sponsorship.
+- The Earn Account address is deterministic and returned before the transaction is confirmed.
+- This example only retrieves the unsigned transaction. You'll need to sign and broadcast it separately.
+- **Important:** Requires `compass-api-sdk` version 2.0.1 or later (includes `earn` endpoints). Make sure to install the latest version.
+

v2/create_earn_account/python/main.py

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+# SNIPPET START 1
+# Import Libraries & Environment Variables
+from compass_api_sdk import CompassAPI, models
+import os
+from dotenv import load_dotenv
+
+load_dotenv()
+
+COMPASS_API_KEY = os.getenv("COMPASS_API_KEY")
+WALLET_ADDRESS = os.getenv("WALLET_ADDRESS")
+# SNIPPET END 1
+
+# SNIPPET START 2
+# Initialize Compass SDK
+compass = CompassAPI(api_key_auth=COMPASS_API_KEY)
+# SNIPPET END 2
+
+# SNIPPET START 3
+# Create Earn Account (No Gas Sponsorship)
+# Get unsigned transaction to create an Earn Account on Base
+# owner: The address that will own and control the Earn Account
+# sender: The address that will sign and pay for gas (same as owner = no gas sponsorship)
+with CompassAPI(api_key_auth=COMPASS_API_KEY) as compass_api:
+    create_account_response = compass_api.earn.earn_create_account(
+        chain=models.CreateAccountRequestChain.BASE,
+        sender=WALLET_ADDRESS,
+        owner=WALLET_ADDRESS,
+        estimate_gas=True,
+    )
+
+    print("Earn Account Address:", create_account_response.earn_account_address)
+    print("Unsigned Transaction:", create_account_response.transaction)
+# SNIPPET END 3
+

v2/create_earn_account/python/pyproject.toml

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+[project]
+name = "create_earn_account_python_example"
+version = "1.0.0"
+description = "Example: Create an Earn Account using Compass API"
+dependencies = [
+    "compass-api-sdk",
+    "python-dotenv",
+]
+

v2/create_earn_account/typescript/.env.example

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+# Compass API Configuration
+COMPASS_API_KEY=your_compass_api_key_here
+
+# Wallet Configuration
+# The wallet address that will own the Earn Account and pay for gas
+WALLET_ADDRESS=0xYourWalletAddress

v2/create_earn_account/typescript/README.md

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+# Create Earn Account - TypeScript Example
+
+This example demonstrates how to create an Earn Account using the Compass API TypeScript SDK.
+
+## Prerequisites
+
+- Node.js 18+ installed
+- A Compass API key ([Get one here](https://auth-compasslabs-ai.auth.eu-west-2.amazoncognito.com/login?client_id=2l366l2b3dok7k71nbnu8r1u36&redirect_uri=https://api.compasslabs.ai/auth/callback&response_type=code&scope=openid+email+profile))
+
+## Setup
+
+1. Install dependencies:
+```bash
+npm install
+```
+
+2. Copy the example environment file:
+```bash
+cp .env.example .env
+```
+
+3. Fill in your `.env` file with your actual values:
+   - `COMPASS_API_KEY`: Your Compass API key
+   - `WALLET_ADDRESS`: Your wallet address (will own the Earn Account)
+
+## Run
+
+```bash
+npm run dev
+```
+
+Or build and run:
+```bash
+npm run build
+npm start
+```
+
+## What This Does
+
+This example gets an unsigned transaction to create an Earn Account on Base. The transaction must be signed and broadcast separately.
+
+## Notes
+
+- **No Gas Sponsorship**: The `owner` (who controls the account) is also the `sender` (who pays for gas). Note that Earn Account creation can also be done WITH gas sponsorship (using the `/gas_sponsorship/prepare` endpoint), but this example does not use gas sponsorship.
+- The Earn Account address is deterministic and returned before the transaction is confirmed.
+- This example only retrieves the unsigned transaction. You'll need to sign and broadcast it separately.
+

v2/create_earn_account/typescript/package.json

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+{
+  "name": "create_earn_account_typescript_example",
+  "version": "1.0.0",
+  "type": "module",
+  "main": "index.js",
+  "scripts": {
+    "build": "tsc",
+    "start": "tsc && node dist/index.js",
+    "dev": "ts-node --esm src/index.ts"
+  },
+  "author": "",
+  "license": "ISC",
+  "description": "Example: Create an Earn Account using Compass API",
+  "dependencies": {
+    "@compass-labs/api-sdk": "^1.0.26",
+    "dotenv": "^16.5.0"
+  },
+  "devDependencies": {
+    "@types/node": "^24.0.0",
+    "prettier": "^3.6.2",
+    "ts-node": "^10.9.2",
+    "typescript": "^5.8.3"
+  }
+}
+

v2/create_earn_account/typescript/src/index.ts

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+// SNIPPET START 1
+// Import Libraries & Environment Variables
+import { CompassApiSDK } from "@compass-labs/api-sdk";
+import dotenv from "dotenv";
+
+dotenv.config();
+
+const COMPASS_API_KEY = process.env.COMPASS_API_KEY as string;
+const WALLET_ADDRESS = process.env.WALLET_ADDRESS as `0x${string}`;
+// SNIPPET END 1
+
+// SNIPPET START 2
+// Initialize Compass SDK
+const compass = new CompassApiSDK({
+  apiKeyAuth: COMPASS_API_KEY,
+});
+// SNIPPET END 2
+
+// SNIPPET START 3
+// Create Earn Account (No Gas Sponsorship)
+// Get unsigned transaction to create an Earn Account on Base
+// owner: The address that will own and control the Earn Account
+// sender: The address that will sign and pay for gas (same as owner = no gas sponsorship)
+const createAccountResponse = await compass.earn.earnCreateAccount({
+  chain: "base",
+  sender: WALLET_ADDRESS,
+  owner: WALLET_ADDRESS,
+  estimateGas: true,
+});
+
+console.log("Earn Account Address:", createAccountResponse.earnAccountAddress);
+console.log("Unsigned Transaction:", createAccountResponse.transaction);
+// SNIPPET END 3
+

v2/create_earn_account/typescript/tsconfig.json

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+{
+  "compilerOptions": {
+    "target": "es2020",
+    "lib": ["es2020"],
+    "module": "nodenext",
+    "outDir": "./dist",
+    "rootDir": "./src",
+    "strict": true,
+    "esModuleInterop": true,
+    "skipLibCheck": true,
+    "forceConsistentCasingInFileNames": true,
+    "types": ["node"]
+  },
+  "include": ["src/**/*"],
+  "exclude": ["node_modules"]
+}
+