plugin-gelato

A powerful plugin to interact with smart contracts using Gelato Relay, supporting both ERC2771 (meta transactions) and non-ERC2771 calls on any EVM-compatible blockchain.

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Features

• Sponsored Calls: Interact with contracts without needing gas on the user's side.
• ERC2771 Support: Execute meta-transactions via Gelato's sponsoredCallERC2771.
• Customizable: Easily configure chains, contracts, and user-specific settings.

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Prerequisites

• pnpm
• A Gelato Relay API key

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Installation

pnpm install elizaos/plugin-gelato

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Configuration

Fill out the .env file in the project root with the following variables:

GELATO_RELAY_API_KEY=<Your Gelato Relay API Key>
EVM_PROVIDER_URL=<Your EVM provider URL (e.g., Alchemy or Infura endpoint)>
EVM_PRIVATE_KEY=<Your wallet's private key>

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Usage

For Non-ERC2771 (Standard Sponsored Call)

Call increment() on 0x3890DB55ff538FBF281c9152820A4a748f5D6F21 contract:
- Function Name: increment
- Args: []
- Target: 0x3890DB55ff538FBF281c9152820A4a748f5D6F21
- Chain: arbitrumSepolia
- ABI: ["function increment()"]

For ERC2771 (Meta-Transactions)

Call increment() on 0x00172f67db60E5fA346e599cdE675f0ca213b47b contract:
- Function Name: increment
- Args: []
- Target: 0x00172f67db60E5fA346e599cdE675f0ca213b47b
- Chain: arbitrumSepolia
- ABI: ["function increment()"]
- User: 0xYourAddressHere

Example Output

For both scenarios, successful execution returns:

✅ Contract interaction successful!
- Function: increment
- Target: 0x<contract_address>
- Chain: arbitrumSepolia
- Task ID: <task_id>
- Track Status: [View Task](https://relay.gelato.digital/tasks/status/<task_id>)

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Development

Code Structure

• utils.ts: Contains functions for sponsoredCall and sponsoredCallERC2771.

• schemas.ts: Defines Zod schemas to validate user input.

• actionsContractInteraction.ts: Contains the action logic, including parsing natural language input and invoking Gelato Relay.

Testing

1. Update your .env file with valid keys.
2. Test both ERC2771 and non-ERC2771 prompts using the examples above.

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Troubleshooting

• Ensure your .env file is properly configured.
• Verify that your contract ABI, function name, and chain match the deployed contract details.
• For ERC2771 calls, confirm the User address is correct and matches the expected _msgSender logic in the contract.

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License

This plugin is licensed under the MIT License. See the LICENSE file for details.