Add gas-sponsored fund Earn Account examples (Python & TypeScript) #89
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Add working examples demonstrating how to fund an Earn Account with gas sponsorship, where users sign off-chain and a sponsor pays the gas fees. **Python Example:** - Uses compass_api_sdk with web3.py for signing - Demonstrates EIP-712 off-chain signing with eth_account - Successfully tested with 0.1 USDC transfer on Base **TypeScript Example:** - Uses @compass-labs/api-sdk with viem for wallet management - Uses @metamask/eth-sig-util for EIP-712 signing (handles TypeScript SDK camelCase type keys) - Normalizes EIP712Domain casing to match standard - Successfully tested with 0.1 USDC transfer on Base **Key Implementation Details:** - Step 1 (approve_transfer): One-time Permit2 approval per token - Step 2 (earn_transfer): Gas-sponsored deposit to Earn Account - Owner signs off-chain (no gas cost) - Sender broadcasts transaction and pays gas - Requires spender parameter when using gas sponsorship for deposits Both examples include: - Environment configuration with .env.example - Clear step-by-step comments with SNIPPET markers - Error handling and transaction confirmation - BaseScan links for transaction verification 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
ElisabethDuijnstee
approved these changes
Jan 8, 2026
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Add working examples demonstrating how to fund an Earn Account with gas sponsorship, where users sign off-chain and a sponsor pays the gas fees.
Python Example:
TypeScript Example:
Key Implementation Details:
Both examples include:
🤖 Generated with Claude Code