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Vibe Coding Meets AI: The Future of Blockchain Indexer Creation

Thu Oct 30 2025

The Rise of AI in Blockchain Development

AI is rapidly changing how blockchain infrastructure is built. Developers are using machine learning to automate smart contract analysis, optimise node operations, and even generate blockchain APIs for real-time data.

According to CoinDesk, the integration of AI into blockchain workflows is creating smarter, faster, and more transparent systems. By combining AI’s reasoning power with blockchain’s data integrity, developers can now innovate at unprecedented speed.

What Is an Indexer in Blockchain

An indexer (like SubQuery) processes and organises blockchain data so it can be queried instantly through APIs. Instead of reading directly from blockchain nodes, an indexer structures data—making it fast, accessible, and efficient for developers and end users.

Whenever a Web3 app displays wallet balances, NFT ownership, or transaction histories, there’s likely an indexer running behind the scenes. These systems are the invisible engines powering blockchain data accessibility.

What Is Vibe Coding and How It Works

Vibe Coding is the concept of using natural language and AI to build software directly — in this case, blockchain indexers. Instead of manually writing schemas and mappings, developers describe what they want to build, and AI takes care of the technical implementation.

SubQuery has brought this idea to life through its SDK, which now supports Model Context Protocol (MCP). MCP is an open standard that connects AI models with your local development environment, enabling AI to understand your entire SubQuery project in real time.

That means AI can:

Access your indexer files and configuration
Write or modify project code contextually
Build, test, and deploy your indexer — all from within your AI IDE

In short, Vibe Coding makes it possible for a developer to build an entire blockchain indexer using only AI commands. Making the indexer development process faster and easier than ever before, plus no authentication or private key access required.

You can watch this process in action on SubQuery’s YouTube channel.

AI can boost indexers with natural language querying, predictive indexing, automated debugging, and adaptive scaling.

AI Tools Developers Are Using Today

Modern blockchain developers are experimenting with AI-powered IDEs that integrate directly into their workflows. Two standout tools include:

Cursor – A next-generation AI coding IDE that uses local project context to generate and edit code intelligently. It supports MCP, making it perfect for SubQuery developers who want to Vibe Code indexers using AI.
Claude – An AI assistant capable of advanced reasoning and structured coding support, especially when paired with MCP-aware environments.

With these tools, developers can Vibe Code SubQuery projects faster than ever — automating the full indexer lifecycle from setup to deployment.

How MCP Supercharges SubQuery Indexer Development

The SubQuery SDK support for MCP marks a major leap forward for blockchain development. With MCP, AI tools like Cursor or Claude can securely interact with your local SubQuery project, enabling a fully AI-driven workflow.

Here’s what that looks like in practice:

Natural language commands: Tell the AI what indexer you want to build.
Context-aware editing: The AI uses MCP to understand your schema, mappings, and codebase.
Automated deployment: AI builds and runs your indexer through your local setup — all without touching private keys.

This creates a safe, efficient, and developer-friendly way to integrate AI into Web3 tooling, while preserving full local control and security. Read more about SubQuery’s MCP integration.

Comparison table showing how SubQuery MCP speeds up indexer creation with AI-assisted setup versus manual setup.

Building a Smarter Blockchain API

A high-performing blockchain API is the final piece of the puzzle. Once an indexer is running, it serves data through APIs that power dApps, analytics dashboards, and DeFi protocols.

With AI and MCP integration, developers can optimise these APIs automatically — tuning queries, improving response times, and handling complex data models with minimal manual effort. This makes the API for blockchain more responsive, accurate, and scalable as on-chain data grows.

Common Questions About Indexers

What are indexers in blockchain?

Indexers collect, process, and organise blockchain data so it can be easily accessed through APIs. Instead of querying raw blockchain nodes, indexers transform on-chain data into structured, searchable information—powering dApps, analytics tools, and blockchain explorers with fast, reliable results.

Who uses blockchain indexers?

Blockchain indexers are used by developers, data analysts, and Web3 projects that need efficient access to on-chain data. They’re essential for DeFi protocols, NFT marketplaces, wallet applications, and infrastructure platforms like SubQuery, which provide ready-to-query data for any blockchain network.

Final Thoughts: Building the Future with AI

AI isn’t replacing blockchain developers — it’s amplifying them. By integrating MCP support into its SDK, SubQuery has made it possible to Vibe Code blockchain indexers entirely through AI tools like Cursor and Claude.

The result is a future where blockchain development is faster, safer, and more accessible than ever.

Ready to see it in action?

Watch the SubQuery Vibe Coding demos on YouTube or start building your first AI-powered indexer today at subquery.network.

About SubQuery

SubQuery Network is innovating web3 infrastructure with tools that empower builders to decentralise without compromise. SubQuery’s infrastructure network offers both data indexers and RPCs — fully decentralised, production-ready, and designed for scale.

Our fast, flexible, and open data indexer supercharges thousands of dApps on nearly 300 networks. Through innovations like AI-assisted development via the SubQuery SDK and Model Context Protocol (MCP) integration, SubQuery is making it easier than ever to build, deploy, and maintain blockchain indexers. We’re not just a company — we’re a movement driving an inclusive and decentralised web3 era, together.