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Documentation Index

Fetch the complete documentation index at: https://helius-auto-translations.mintlify.app/llms.txt

Use this file to discover all available pages before exploring further.

Quick Support

Need immediate assistance? Contact our support team

Status Page

Check real-time service status and incident reports

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Top Questions

Sign up at dashboard.helius.dev and create a project — your API key is shown in the dashboard and can be used as a query parameter (?api-key=YOUR_API_KEY). You can also create accounts and keys programmatically via the Helius CLI or MCP server.
Helius bills API usage in credits — each method has a specific credit cost. Your plan includes a monthly credit allowance that resets each billing cycle (unused credits do not roll over). See the credits page for the full cost table per method, and autoscaling if you need to exceed your plan limits.
Standard RPC methods are raw Solana JSON-RPC calls (getAccountInfo, getTransaction, etc.). The DAS API is a higher-level, unified interface for querying Solana digital assets — NFTs, compressed NFTs, fungible tokens, and inscriptions — with enriched metadata, ownership, and pricing data in a single structured response.
The Free plan is suitable for development and testing. For production workloads, paid plans offer higher credit allowances, higher rate limits on Enhanced APIs (DAS, Priority Fees, Enhanced Transactions), and staked connections for reliable transaction landing. See the pricing page and plans overview for a detailed comparison.
Webhooks push events to a public HTTPS endpoint you operate — ideal when you want events delivered to your server without holding a connection open. Enhanced WebSockets stream events over a persistent WSS connection — ideal for apps already using the standard Solana WebSocket interface. LaserStream is our gRPC streaming service with historical replay and multi-region failover — ideal for large-scale pipelines that need the richest feature set. Enhanced WebSockets and LaserStream are both powered by the same underlying infrastructure.
Yes. Use https://devnet.helius-rpc.com/?api-key=YOUR_API_KEY for Devnet RPC calls. A Devnet SOL faucet is available in your dashboard on paid plans — see the Devnet SOL guide for more options.
Requests return a 429 max usage reached error once your credits are exhausted. To avoid interruptions, enable autoscaling on fiat plans, or purchase prepaid credits on crypto plans.
Real-time status and incident history are published at helius.statuspage.io. See the status page guide for details on subscribing to incident notifications.

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Account & Billing

Accounts

Solana accounts, wallet management, and account-related operations

Billing

Pricing plans, payment methods, enterprise solutions, and account management

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Infrastructure & Nodes

RPC

Solana RPC nodes, methods, rate limits, and troubleshooting

Dedicated Nodes

Dedicated Solana nodes, purchasing, and management

Error Codes

Common API error codes and troubleshooting steps

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Real-time Data Streaming

WebSockets

Enhanced WebSocket features, troubleshooting, and usage

LaserStream

LaserStream purchasing, troubleshooting, and subscription management

Webhooks

Webhook management, network support, and troubleshooting

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Transaction & Fee APIs

Priority Fee API

Transaction optimization, fee estimation, and improving landing rates

Sender

Helius Sender functionality, configuration, and rate limits

Enhanced Transactions

Enhanced Transactions API usage, authentication, and rate limits

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Data APIs

DAS API

Digital Asset Standard API, asset data, and price information

ZK Compression

ZK Compression API usage, pagination, and troubleshooting

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