Helius MCP
OfficialServer Configuration
Describes the environment variables required to run the server.
| Name | Required | Description | Default |
|---|---|---|---|
| HELIUS_API_KEY | No | Your Helius API key for accessing Solana blockchain data. | |
| HELIUS_NETWORK | No | The Solana network to connect to (e.g., Mainnet Beta or Devnet). | Mainnet Beta |
Instructions
Guidance the server publishes about itself, which clients place ahead of the tool catalog so the model reads it before choosing anything.
This server publishes no instructions, or was last inspected before Glama recorded them.
Capabilities
Features and capabilities supported by this server
Protocol revision2025-11-25
| Capability | Details |
|---|---|
| tools | {
"listChanged": true
} |
Tools
Functions exposed to the LLM to take actions
| Name | Description |
|---|---|
| heliusAccountC | Account setup, API keys, signup, plans, and billing. Use for pricing or account state, not per-method rate limits. |
| heliusWalletC | Wallet-centric balances, holdings, identity, and wallet history. Use for portfolio views, not raw token accounts. |
| heliusAssetB | Assets, NFTs, collections, proofs, and token holders. Use for DAS ownership or metadata, not transaction history. |
| heliusTransactionC | Parsed transactions and wallet transaction history. Use for activity analysis, not raw account state. |
| heliusChainC | Raw chain state, token accounts, stake reads, blocks, network status, priority fees, transaction and Jito bundle simulation, and bundle status. Use for token accounts or blocks, not wallet portfolio summaries. |
| heliusStreamingC | Webhook CRUD, live subscription configuration, Parsed Streams program discovery, and Preconfirmations coverage. Use for actual webhook/subscription setup, not how-to guides. |
| heliusKnowledgeC | Docs, guides, pricing references, troubleshooting, source, blog, and SIMD research. Use for guides, rate limits, or errors, not live mutations. |
| heliusWriteB | Mutating SOL/token transfer and staking actions. Use for sends or staking, not read-only queries. |
| heliusCompressionB | Compressed account, proof, balance, and compression history queries. Use for zk-compression state, not standard DAS assets. |
| expandResultC | Expand a prior summary-first result by resultId, section, range, page, or continuation. |
Prompts
Interactive templates invoked by user choice
| Name | Description |
|---|---|
No prompts | |
Resources
Contextual data attached and managed by the client
| Name | Description |
|---|---|
No resources | |
TDQS
Scored across 10 tools
The tools are grouped by clearly distinct Helius domain areas, and descriptions provide useful 'use for / not' guidance. Minor overlap remains between wallet history and parsed transactions, asset vs. compression queries, and account pricing vs. knowledge pricing/rate-limit references.
All tools use camelCase, and the domain tools consistently follow a heliusX noun-based pattern such as heliusWallet and heliusAsset. expandResult is a reasonable utility exception but breaks the helius-prefix pattern slightly.
Ten tools is well-scoped for a broad Solana/Helius API surface, with each tool covering a distinct product area. There are no obvious filler tools or missing categories that would require splitting or merging.
The surface covers account/billing, wallets, assets, transactions, raw chain/RPC features, streaming/webhooks, knowledge/docs, writes/staking, compression, and result expansion. This represents comprehensive lifecycle and domain coverage for the apparent Helius MCP scope.