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vechain-core

Guide VeChainThor development with SDK usage, fee delegation, and multi-clause transactions.

9|2|Updated Feb 27, 2026
Search Tags:#sdk#blockchain#transactions#smart contracts#vechain#fee delegation
One-click install
npx skills add https://github.com/vechain/vechain-ai-skills --skill vechain-core
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: vechain-core
Source: https://github.com/vechain/vechain-ai-skills/tree/main/skills/vechain-core
Command: npx skills add https://github.com/vechain/vechain-ai-skills --skill vechain-core

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill provides comprehensive guidance and tools for core VeChain development, simplifying complex tasks like SDK integration, fee delegation, and transaction management.

Core Features & Use Cases

  • VeChain SDK Mastery: Utilize @vechain/sdk-core and @vechain/sdk-network for robust blockchain interactions.
  • Fee Delegation (VIP-191): Implement gasless transactions for enhanced user onboarding and experience.
  • Multi-Clause Transactions: Atomically batch multiple operations within a single transaction for efficiency and reliability.
  • Use Case: Develop a decentralized application where users can interact with smart contracts without needing to understand or pay for VTHO gas fees, thanks to fee delegation.

Quick Start

Use the vechain-core skill to help me set up a new VeChain project using the latest SDK.

Frequently Asked Questions about vechain-core

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I implement fee delegation for VeChain transactions?▼

Fee delegation allows users to interact with smart contracts without paying VTHO gas fees. This Skill guides you through implementing VIP-191 gasless transactions using the VeChain SDK to enhance user onboarding.

Can I migrate my dApp from Connex to the VeChain SDK?▼

Yes, you can migrate from legacy tools like Connex and thor-devkit. This Skill provides guidance on transitioning your decentralized application to use the modern @vechain/sdk-core and @vechain/sdk-network packages.

What are multi-clause transactions in VeChain?▼

Multi-clause transactions allow you to atomically batch multiple operations within a single transaction. This mechanism improves efficiency and reliability when interacting with the VeChainThor blockchain.

How do I estimate gas for VeChainThor smart contracts?▼

This Skill offers guidance on network specifics and transaction best practices, including gas estimation. You can calculate the required VTHO for dual-token model operations using the VeChain SDK.

Does the VeChain SDK support backend and frontend development?▼

Yes, the VeChain SDK supports both backend and frontend development environments. This Skill provides expertise for robust blockchain interactions across your entire decentralized application stack.

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