# Envio: Fast, Multi-Chain Blockchain Indexer

> Envio is a real-time multichain blockchain indexer. HyperIndex is a multichain indexer supporting any EVM chain, plus Solana and Fuel. HyperSync is a high-throughput data layer natively available on 70+ EVM chains and Fuel, and supports any EVM chain via RPC. HyperRPC is a read-only JSON-RPC endpoint powered by HyperSync, up to 5x faster than traditional nodes. Benchmark: Envio 1 min vs The Graph 143 min (Uniswap V2 Factory, [Sentio, May 2025](https://docs.envio.dev/docs/HyperIndex/benchmarks.md)).

This file contains links to documentation sections following the llmstxt.org standard.

## HyperIndex

### Core

- [Configuration Schema Reference](https://docs.envio.dev/docs/HyperIndex/config-schema-reference.md): Detailed reference for every field and option in the Envio `config.yaml` configuration file used to configure HyperIndex indexers.
- [Loading Dynamic Contracts / Factories](https://docs.envio.dev/docs/HyperIndex/dynamic-contracts.md): Learn how to track and index dynamically created contracts from factory contracts.
- [Effect API](https://docs.envio.dev/docs/HyperIndex/effect-api.md): Learn how to use the Effect API for external calls in handlers.
- [Generated Indexing Files](https://docs.envio.dev/docs/HyperIndex/generated-files.md): Learn how generated files handle type-safe data access, event processing, and runtime indexing.
- [HyperSync as Data Source](https://docs.envio.dev/docs/HyperIndex/hypersync.md): Learn how HyperSync is used in HyperIndex to fetch raw blockchain data.
- [Loaders](https://docs.envio.dev/docs/HyperIndex/loaders.md): Learn how Loaders improved database access performance for event handlers.
- [Metadata Query](https://docs.envio.dev/docs/HyperIndex/metadata-query.md): See indexing progress and metadata per chain using HyperIndex _meta query.
- [Multichain Indexing](https://docs.envio.dev/docs/HyperIndex/multichain-indexing.md): Learn how to index and process events across multiple chains with HyperIndex.
- [Benchmarking Your Indexer](https://docs.envio.dev/docs/HyperIndex/benchmarking.md): Learn how to benchmark your indexer to identify bottlenecks and optimize performance.
- [Database Performance Optimization](https://docs.envio.dev/docs/HyperIndex/database-performance-optimization.md): Learn how to optimize HyperIndex databases with indices and schema design for faster queries.
- [Historical Sync](https://docs.envio.dev/docs/HyperIndex/historical-sync.md): Learn how to optimize historical sync with HyperIndex for fast and efficient data retrieval.
- [Performance Optimization](https://docs.envio.dev/docs/HyperIndex/performance.md): Learn how to optimize HyperIndex performance for syncing, indexing, and querying data.
- [Understanding Chain Head Latency](https://docs.envio.dev/docs/HyperIndex/latency-at-head.md): Learn how Envio keeps blockchain indexers updated with low latency and reliable multi-chain sync.
- [Preload Optimization](https://docs.envio.dev/docs/HyperIndex/preload-optimization.md): Learn how preload optimization improves event handlers with batched reads and parallel external calls.
- [Query Conversion Guide](https://docs.envio.dev/docs/HyperIndex/query-conversion.md): Learn how to convert queries from TheGraph's custom GraphQL syntax to Envio's standard GraphQL syntax.
- [Chain Reorganization Support](https://docs.envio.dev/docs/HyperIndex/reorgs-support.md): Learn how to handle chain reorgs and keep your indexed data consistent.
- [RPC as Data Source](https://docs.envio.dev/docs/HyperIndex/rpc-sync.md): Learn how to index any EVM blockchain using RPC and optimize performance with HyperIndex.
- [Terminology & Key Concepts](https://docs.envio.dev/docs/HyperIndex/terminology.md): Explore key terms for fast reference and blockchain indexer development.
- [Using WebSockets with GraphQL](https://docs.envio.dev/docs/HyperIndex/websockets.md): Learn how to use WebSocket connections with your HyperIndex GraphQL endpoint.
- [Wildcard Indexing & Topic Filtering](https://docs.envio.dev/docs/HyperIndex/wildcard-indexing.md): Learn how to index events using wildcard indexing feature and topic based filtering.
- [Block Handlers](https://docs.envio.dev/docs/HyperIndex/block-handlers.md): Learn how to run custom logic on every blockchain block or at set intervals using onBlock.
- [Envio CLI Reference](https://docs.envio.dev/docs/HyperIndex/cli-commands.md): Explore and manage indexer projects with Envio CLI, from setup to development and benchmarking.
- [Configuration File (config.yaml)](https://docs.envio.dev/docs/HyperIndex/configuration-file.md): Learn how to configure HyperIndex with contracts, events, networks, and advanced indexing options.
- [Accessing Contract State in Event Handlers](https://docs.envio.dev/docs/HyperIndex/contract-state.md): Learn how to efficiently fetch and store token contract data from events using RPC, multicall, and caching.
- [Environment Variables](https://docs.envio.dev/docs/HyperIndex/environment-variables.md): Learn how to configure and manage Envio environment variables for your blockchain indexer.
- [Event Handlers (src/EventHandlers.*)](https://docs.envio.dev/docs/HyperIndex/event-handlers.md): Learn how to register and manage event handlers for efficient data indexing.
- [Using IPFS with Envio Indexers](https://docs.envio.dev/docs/HyperIndex/ipfs.md): Learn how to fetch and index NFT metadata from IPFS using Envio for complete on-chain and off-chain data.
- [Navigating Hasura](https://docs.envio.dev/docs/HyperIndex/navigating-hasura.md): Explore and interact with your locally indexed blockchain data using Hasura GraphQL.
- [Running The Indexer Locally](https://docs.envio.dev/docs/HyperIndex/running-locally.md): Learn how to start, run, and manage the Envio indexer locally with Docker and Hasura.
- [Entities Schema (schema.graphql)](https://docs.envio.dev/docs/HyperIndex/schema.md): Learn how to define GraphQL schemas, manage entities, and handle different types in HyperIndex.
- [Testing](https://docs.envio.dev/docs/HyperIndex/testing.md): Learn to test HyperIndex indexers with mock databases, simulated events, and full workflow validation.

### Envio Cloud

- [Pricing & Billing](https://docs.envio.dev/docs/HyperIndex/hosted-service-billing.md): Explore Envio's flexible pricing tiers, from free development plans to scalable production options.
- [Deploying Your Indexer](https://docs.envio.dev/docs/HyperIndex/hosted-service-deployment.md): Learn how to deploy, manage, and version your indexers effortlessly using git workflow.
- [Features](https://docs.envio.dev/docs/HyperIndex/hosted-service-features.md): Explore production-ready features of the Envio Cloud including monitoring, zero-downtime rollbacks, and deployment management.
- [Monitoring Your Indexer](https://docs.envio.dev/docs/HyperIndex/hosted-service-monitoring.md): Monitor your deployed indexer health, sync progress, and performance using the Envio Cloud dashboard.
- [Envio Cloud](https://docs.envio.dev/docs/HyperIndex/hosted-service.md): Explore Envio's fully managed hosting for indexers with easy Git deployments, monitoring, and multi-chain support.
- [Organisation Setup](https://docs.envio.dev/docs/HyperIndex/organisation-setup.md): Learn how to create an organisation in the Envio Cloud and manage team members.
- [Self-Hosting Guide](https://docs.envio.dev/docs/HyperIndex/self-hosting.md): Learn how to self-host Envio indexers with Docker, PostgreSQL, and Hasura for full control.

### Troubleshooting

- [Common Issues](https://docs.envio.dev/docs/HyperIndex/common-issues.md): Discover quick fixes and proven solutions for setup, runtime, and configuration issues in Envio.
- [Error Codes](https://docs.envio.dev/docs/HyperIndex/error-codes.md): Explore Envio HyperIndex error codes with clear explanations and quick fixes for common issues.
- [Logging](https://docs.envio.dev/docs/HyperIndex/logging.md): Learn how to configure and use Envio HyperIndex logging to monitor performance and troubleshoot efficiently.
- [Reserved Words](https://docs.envio.dev/docs/HyperIndex/reserved-words.md): Learn which reserved words in Envio cause validation errors and how to rename them safely.

### Tutorials & Examples

- [Velodrome & Aerodrome Indexer](https://docs.envio.dev/docs/HyperIndex/example-aerodrome-dex-indexer.md): Explore multi-chain Velodrome & Aerodrome DEX data with real-time tracking of pools, swaps, and liquidity.
- [Cross-Chain Messaging](https://docs.envio.dev/docs/HyperIndex/example-cross-chain-messaging.md): Explore cross-chain messaging and track events across multiple chains efficiently.
- [Sablier Protocol Indexers](https://docs.envio.dev/docs/HyperIndex/example-sablier.md): Explore Sablier protocol indexers to track token streams and distributions across multiple chains.
- [Uniswap V4 Multichain indexer](https://docs.envio.dev/docs/HyperIndex/example-uniswap-v4-multi-chain-indexer.md): Explore real-time Uniswap V4 data across multiple chains with Envio.
- [Indexing Greeter Contract Using Envio](https://docs.envio.dev/docs/HyperIndex/greeter-tutorial.md): Learn how to build and run a multi-chain indexer that tracks Greeter contract events using Envio.
- [Getting Price Data in Your Indexer](https://docs.envio.dev/docs/HyperIndex/price-data.md): Learn how to fetch and integrate token price data in your indexer using oracles, DEX pools, and APIs.
- [Indexing ERC20 Token Transfers on Base](https://docs.envio.dev/docs/HyperIndex/tutorial-erc20-token-transfers.md): Learn how to index and query USDC ERC20 transfers on Base using Envio.
- [Indexing Sway Farm on the Fuel Network](https://docs.envio.dev/docs/HyperIndex/tutorial-indexing-fuel.md): Learn how to index Sway Farm on Fuel and track player events with Envio.
- [Indexing Optimism Bridge Deposits](https://docs.envio.dev/docs/HyperIndex/tutorial-op-bridge-deposits.md): Learn to quickly index Optimism Bridge deposits and explore OP Bridge event data.
- [Scaffold-Eth-2 Envio Extension](https://docs.envio.dev/docs/HyperIndex/scaffold-eth-2-extension-tutorial.md): Scaffold-ETH Extension: Get a boilerplate indexer for your deployed smart contracts and start tracking events instantly.
- [HyperIndex Benchmarks](https://docs.envio.dev/docs/HyperIndex/benchmarks.md): Discover HyperIndex benchmarks and see why it's the fastest blockchain data indexer.
- [HyperIndex Quickstart](https://docs.envio.dev/docs/HyperIndex/contract-import.md): Learn to quickly autogenerate and configure a HyperIndex indexer for any smart contract.
- [Fuel](https://docs.envio.dev/docs/HyperIndex/fuel.md): Explore how to index and query real-time and historical data on Fuel Network with HyperIndex.
- [Licensing](https://docs.envio.dev/docs/HyperIndex/licensing.md): Learn how Envio's licensing lets developers self-host, use generated code, and stay open while protecting Envio Cloud.
- [Migrate from Alchemy to Envio](https://docs.envio.dev/docs/HyperIndex/migrate-from-alchemy.md): Easily migrate your existing Alchemy subgraphs to Envio for 143x faster indexing than subgraphs, multichain support, and a better developer experience.
- [Migrate to HyperIndex V3](https://docs.envio.dev/docs/HyperIndex/migrate-to-v3.md): Step-by-step instructions for upgrading an existing HyperIndex V2 project to V3.
- [What's New in HyperIndex V3](https://docs.envio.dev/docs/HyperIndex/whats-new-in-v3.md): Discover the new features in HyperIndex V3 — unified handlers API, ESM support, top-level await, automatic handler registration, new testing framework, ClickHouse storage, Solana support, and more.
- [Migrate from The Graph to Envio](https://docs.envio.dev/docs/HyperIndex/migration-guide.md): Easily migrate your existing subgraph to HyperIndex for up to 100x faster indexing speeds, multichain support, and a better developer experience.
- [HyperIndex: Fast Multichain Blockchain Indexer](https://docs.envio.dev/docs/HyperIndex/overview.md): Explore HyperIndex, a blazing-fast multichain indexer for real-time blockchain data.
- [Solana](https://docs.envio.dev/docs/HyperIndex/solana.md): Experimental Solana support in HyperIndex. Supports Block Handler, Effect API, and Envio Cloud.

## HyperSync

- [HyperSync](https://docs.envio.dev/docs/HyperSync/overview.md): Explore HyperSync for ultra-fast blockchain data access and flexible queries across 70+ networks.
- [HyperSync Quickstart](https://docs.envio.dev/docs/HyperSync/hypersync-quickstart.md): Get started quickly with HyperSync to stream and filter blockchain events.
- [Using HyperSync](https://docs.envio.dev/docs/HyperSync/hypersync-usage.md): Learn how to fetch, filter, and decode blockchain data using HyperSync.
- [HyperSync Clients](https://docs.envio.dev/docs/HyperSync/hypersync-clients.md): Explore HyperSync clients for fast blockchain data access in Node.js, Python, Rust, and Go.
- [HyperSync Query](https://docs.envio.dev/docs/HyperSync/hypersync-query.md): Explore HyperSync queries to efficiently retrieve, filter, and join blockchain data.
- [Preset Queries](https://docs.envio.dev/docs/HyperSync/hypersync-presets.md): Explore ready-to-use HyperSync query presets to fetch blocks, transactions, and logs efficiently.
- [Using curl with HyperSync](https://docs.envio.dev/docs/HyperSync/hypersync-curl-examples.md): Explore how to quickly fetch blockchain data using curl commands with HyperSync.
- [API Tokens](https://docs.envio.dev/docs/HyperSync/api-tokens.md): Learn how to generate and use HyperSync API tokens for secure access.
- [Supported Networks](https://docs.envio.dev/docs/HyperSync/hypersync-supported-networks.md): See all networks currently supported by HyperSync, including coverage tiers, reliability notes and the criteria we use when adding new chains.
- [Analyzing All Transactions To and From an Address](https://docs.envio.dev/docs/HyperSync/tutorial-address-transactions.md): Explore all transactions, token balances, and approvals for any EVM address with HyperSync.
- [HyperFuel](https://docs.envio.dev/docs/HyperSync/hyperfuel.md): HyperFuel gives you a high performance way to query and sync Fuel network data using HyperSync. Access real-time and historical data with flexible queries across contracts, events and state.
- [HyperFuel Query](https://docs.envio.dev/docs/HyperSync/hyperfuel-query.md): Explore all fields and parameters for HyperFuel queries.

## HyperRPC

- [HyperRPC](https://docs.envio.dev/docs/HyperRPC/overview-hyperrpc.md): Ultra-fast read-only RPC built on top of HyperSync, offering up to 5x faster performance than traditional nodes for data-intensive operations like eth_getLogs, block queries, and transaction lookups. Use as a drop-in replacement for existing JSON-RPC tooling, no code changes needed. Covers supported methods, API tokens, performance benchmarks, and getting started.

## Supported Networks

- [HyperIndex Supported Networks](https://docs.envio.dev/docs/HyperIndex/supported-networks.md): Full list of networks supported by HyperIndex, including EVM chains, L2s, and testnets. Also covers using any EVM chain via RPC and local development networks.
- [HyperSync Supported Networks](https://docs.envio.dev/docs/HyperSync/hypersync-supported-networks.md): Full list of networks supported by HyperSync, including coverage tiers, reliability notes, and the criteria used when adding new chains.
- [HyperRPC Supported Networks](https://docs.envio.dev/docs/HyperRPC/hyperrpc-supported-networks.md): Full list of networks supported by HyperRPC, including endpoints, network IDs, and trace support.

## Case Studies

- [Indexing 4 Billion Polymarket Events](https://docs.envio.dev/blog/polymarket-hyperindex-case-study.md): How Envio HyperIndex replaced 8 Polymarket subgraphs with one TypeScript indexer on Polygon, syncing 4 billion events in 6 days.
- [Sablier: One Indexer Across 27 Chains](https://docs.envio.dev/blog/case-study-sablier.md): How Sablier replaced 12 separate indexer deployments with one Envio multichain indexer spanning 27 chains, cutting costs and accelerating feature delivery.
- [Limitless: Real-Time Prediction Market on Base](https://docs.envio.dev/blog/case-study-limitless-prediction-market.md): How Limitless Exchange uses Envio to power a daily prediction market on Base with real-time onchain data, custom GraphQL APIs, and a seamless transaction feed.
- [Bridgg: 12 OP Superchain Networks, One API](https://docs.envio.dev/blog/case-study-bridgg-op-superchain.md): How Bridgg uses Envio to aggregate deposit and withdrawal data across 12 OP Superchain networks into a single API, indexing 11 million events in one deployment.
- [zkPass: Multichain ZKP Identity Verification](https://docs.envio.dev/blog/zkpass-shaping-future-of-data-privacy.md): How zkPass uses zero knowledge proofs with Envio to verify identity and transactions across 8 EVM networks while keeping user data private.
- [GBlast: Eliminating Data Latency on Blast](https://docs.envio.dev/blog/case-study-gblast.md): How GBlast integrated Envio to eliminate real-time data latency, power their points system, and deliver a responsive GambleFi experience on Blast.

## Legal

- [Privacy Policy](https://docs.envio.dev/docs/HyperIndex/privacy-policy.md): Read Envio's Privacy Policy covering how we collect, use, store, and protect your personal data when you use our website and services.
- [Terms of Service](https://docs.envio.dev/docs/HyperIndex/terms-of-service.md): Read the Terms and Conditions for using Envio services.

## Optional

- [Envio website](https://envio.dev): Product overview and landing page.
- [Envio root llms.txt](https://envio.dev/llms.txt): Marketing-facing llms.txt summary.
- [Pricing](https://envio.dev/pricing): Envio Cloud plans and billing.
- [Supported chains overview](https://envio.dev/chains): Canonical chains page across all products.
- [GitHub organization](https://github.com/enviodev): Public repositories.
- [HyperIndex repo](https://github.com/enviodev/hyperindex): Source and issues.
- [Releases](https://github.com/enviodev/hyperindex/releases): HyperIndex changelog.
- [Quickstart with AI](https://docs.envio.dev/docs/HyperIndex/quickstart-with-ai.md): End-to-end guide for building an indexer with Claude Code, Cursor, or any MCP-compatible AI coding assistant.
- [MCP Server](https://docs.envio.dev/docs/HyperIndex/mcp-server.md): Model Context Protocol server for AI coding assistants. Endpoint: https://docs.envio.dev/mcp
- [X](https://x.com/envio_indexer): Social updates.
- [Telegram](https://t.me/+5mI61oZibEM5OGQ8): Community chat.
- [Discord](https://discord.gg/envio): Community support.
- [LinkedIn](https://www.linkedin.com/company/envio_indexer): Company page.
- [YouTube](https://www.youtube.com/@envio_indexer): Video content.