# Helius

> The engine behind Solana's best teams, traders, and tinkerers.

Helius is a Solana development platform offering RPC nodes, APIs, and real-time data streaming for developers.

Helius is an API platform for Solana developers, providing RPC nodes, real-time and historical data, token metadata, and transaction streaming. Developers use it to read onchain data, send transactions, and monitor accounts without running their own infrastructure.

- Type: Company
- Sector: Developer Tooling
- Status: Active
- Founded: 2022-07-01
- Profile: https://thegrid.id/profiles/Helius

## Products

- [Helius RPC nodes](https://thegrid.id/profiles/Helius): Helius RPC nodes provide Solana endpoints for reading onchain data and sending transactions, with dedicated infrastructure options for latency-sensitive workloads. (RPC Provider, Live, Main Product)
- [ORB (fka as XRay)](https://thegrid.id/profiles/Helius): A human-readable Solana transaction explorer powered by Helius. (Block Explorer, Open Beta)
- [Helius APIs](https://thegrid.id/profiles/Helius): Helius APIs is a suite of REST APIs for Solana developers. It includes the Digital Asset Standard (DAS) API for token and NFT metadata, Enhanced Transactions API for human-readable transaction parsing, Priority Fee API for fee estimation, ZK Compression endpoints, and the Wallet API for aggregated wallet data including balances, history, transfers, and identity lookups. (OnChain Data API, Live)
- [Helius Data Streaming](https://thegrid.id/profiles/Helius): Helius' data streaming service delivers real-time updates on Solana blockchain events, enabling instant access to transaction and account changes for improved application responsiveness. (OnChain Data API, Live)
- [Helius Validator-as-a-Service](https://thegrid.id/profiles/Helius): Validator-as-a-Service provides managed white label Solana validators for enterprises and institutions, enabling branded staking services with automated monitoring, security maintenance, and performance optimization. (Node Hosting, Live)

## Assets

- [Helius Staked SOL (hSOL)](https://thegrid.id/profiles/Helius): hSOL is a liquid staking token representing staked SOL on the Helius validator. It is used to earn staking rewards while maintaining liquidity for use in DeFi applications, trading, or transfers without unstaking. Stake delegated to Helius is used to enable faster processing for Solana developers through Solana's staked-weighted quality-of-service (SWQoS) mechanism. (Liquid Staking Tokens (LSTs))

## Links

- [Blog](https://www.helius.dev/blog)
- [Documentation](https://www.helius.dev/docs)
- [Main](https://www.helius.dev)
- [Media Kit/branding](https://drive.google.com/drive/folders/1Kko7VCzcoDuQICiOAHZGXwZ-gB_xvUYj)
- [Privacy policy](https://www.helius.dev/privacy-policy)
- [Terms of Service](https://www.helius.dev/terms)
- [LinkedIn](https://www.linkedin.com/company/heliusapi)
- [Discord](https://discord.com/invite/aYjmtWsy6b)
- [YouTube](https://www.youtube.com/@helius_labs)
- [Twitter / X](https://x.com/Orb_Markets)
- [GitHub](https://github.com/helius-labs)
- [Twitter / X](https://x.com/helius)

## Legal

This data is provided under two licensing models.

Model 1 - open data. The open data core is licensed under the Open Database License (ODbL) — a copyleft/share-alike license allowing free use, modification, and sharing for any purpose. Attribution is required: include "Powered by The Grid" linking to https://thegrid.id wherever the data is used. Derivative databases must be shared under ODbL terms. Trademarks, logos, and brand names (marked "Special TPIP") are not covered by the ODbL. For ML/AI use: training datasets that substantially extract ODbL data are Derivative Databases and must be shared under ODbL if publicly used; models must be attributed in documentation.

Model 2 - commercial licenses. The Grid Data Service (TGDS) is also available as a commercial license. See [Web Services Terms](https://about.thegrid.id/legal/web-services-terms) for commercial use that is not covered by the open data service.

The following applies to both licensing models.
- All data is provided AS IS with no guarantees of accuracy.
- The Grid does not provide investment, legal, or tax advice, and
- a project's presence in The Grid's data does not imply endorsement.


- [Data Licensing & Disclaimers](https://about.thegrid.id/legal/data-licensing-and-disclaimers): Licensing models and disclaimers
- [Open Data (ODbL)](https://about.thegrid.id/legal/open-data): Open Database License terms and scope for The Grid's open data service.
- [Attribution Guidelines](https://about.thegrid.id/legal/open-data-attribution-guidelines): How to attribute The Grid's data when using the open data service.
- [Web Services Terms](https://about.thegrid.id/legal/web-services-terms): commercial Terms for using data services.
- [All Legal Documents](https://about.thegrid.id/legal): Full index of terms, policies, and disclosures

## Optional

- [TGS Field Descriptions](https://github.com/The-Grid-Data/workspace-public/blob/main/references/tgs-field-descriptions.md): Schema field definitions for The Grid's data model
- [TGS JSON Structure](https://github.com/The-Grid-Data/workspace-public/blob/main/references/tgs-json-structure.md): Data model structure and relationships
- [Product Type Definitions](https://github.com/The-Grid-Data/workspace-public/blob/main/references/product-type-definitions.md): Definitions for each product type
- [Product Type Classification](https://github.com/The-Grid-Data/workspace-public/blob/main/references/product-type-classification.md): Guide for classifying products into types
- [Grid MCP Guide](https://github.com/The-Grid-Data/workspace-public/blob/main/grid-search/skills/grid-query/references/grid-mcp-guide.md): How to query The Grid programmatically via MCP