MCP Tool Catalog - Helius Docs

The Helius MCP server exposes 10 public tools: 9 routed domain tools plus expandResult. Every Helius and Solana action is reachable as an action argument on the appropriate routed tool, and the right tool/action is selected automatically based on your natural language request.

Routed Tool Call Shape

All 9 routed tools share a common argument shape:

Field	Description
`action`	The Helius action name to run (e.g. `getBalance`, `createWebhook`)
domain-specific params	For example `address`, `signatures`, `webhookURL`
`detail` (optional)	`summary`, `standard`, or `full` — controls response verbosity
`_feedback`, `_feedbackTool`, `_model` (optional)	Telemetry fields

Example call:

{
  "name": "heliusWallet",
  "arguments": {
    "action": "getBalance",
    "address": "Gh9ZwEmdLJ8DscKNTkTqPbNwLNNBjuSzaG9Vp2KGtKJr",
    "_feedback": "initial balance check",
    "_feedbackTool": "heliusWallet.getBalance",
    "_model": "your-model-id"
  }
}

`expandResult`

Heavy responses are summary-first. Routed tools return a compact summary plus a resultId when the full response would be large or when detail: "summary" is requested. Call expandResult with that resultId to fetch a specific section, range, page, or continuation slice of the original response on demand. This keeps token usage low for exploratory queries while still letting agents drill into the full payload when needed.

heliusAccount

Account setup, auth, plans, and billing — including the autonomous signup flow.

Action	Description
`getStarted`	Check setup state and get recommended next steps
`setHeliusApiKey`	Configure your API key
`setNetwork`	Switch between mainnet and devnet for the session
`generateKeypair`	Create a Solana wallet for signup
`signup`	Create a Helius account via hosted payment link. `mode: "link"` returns a payment URL the user opens in a browser; `mode: "autopay"` pays USDC from the local keypair; `mode: "resume"` polls a previously created intent. Every new signup (all plans, including Agent) requires `email`, `firstName`, `lastName`.
`getAccountStatus`	Check account status and credits
`getHeliusPlanInfo`	Get your current plan details
`compareHeliusPlans`	Compare available plans
`previewUpgrade`	Preview cost of upgrading
`upgradePlan`	Upgrade your plan. `mode: "link"` returns a payment URL; `mode: "autopay"` pays USDC from the local keypair. Requires `email`, `firstName`, `lastName`.
`payRenewal`	Pay a plan renewal. `mode: "link"` returns a payment URL; `mode: "autopay"` pays USDC from the local keypair.
`purchaseCredits`	Buy prepaid credits (one-time top-up). `mode: "link"` returns a payment URL; `mode: "autopay"` pays USDC from the local keypair.

heliusWallet

Wallet balances, holdings, history, and identity lookups.

Action	Description
`getBalance`	Get SOL balance for an address
`getTokenBalances`	Get token balances for an address
`getWalletBalances`	Full portfolio with USD values
`getWalletHistory`	Wallet transaction history with balance deltas
`getWalletTransfers`	Wallet send/receive history
`getWalletFundedBy`	Trace wallet funding source
`getWalletIdentity`	Look up who owns a wallet by address or SNS/ANS domain
`batchWalletIdentity`	Batch identity lookup for up to 100 addresses or domains

heliusAsset

NFTs, compressed NFTs, fungible tokens, collections, and token holders via the Digital Asset Standard (DAS).

Action	Description
`getAsset`	Get a single asset by mint address (single or batch)
`getAssetsByOwner`	Get all assets owned by a wallet
`getAssetsByGroup`	Get assets by collection
`searchAssets`	Flexible multi-criteria asset search
`getSignaturesForAsset`	Transaction history for an asset (by mint)
`getNftEditions`	Get print editions of a master NFT
`getTokenHolders`	Get top holders of a token

heliusTransaction

Transaction parsing and address/transfer history.

Action	Description
`parseTransactions`	Parse transactions into human-readable format
`getTransactionHistory`	Address history in `raw`, `parsed`, or `signatures` mode. `raw` returns GTFA signature/full data, `parsed` returns Enhanced-enriched history, and `signatures` returns lightweight signature records. There is no separate `getTransactionsForAddress` MCP action
`getTransfersByAddress`	Normalized SOL/token transfer records for an address — not complete transaction objects

heliusChain

Chain state and raw account inspection — RPC reads, blocks, network status, token accounts, program accounts, and priority fee estimation.

Action	Description
`getAccountInfo`	Get account data (single or batch)
`getProgramAccounts`	Get accounts owned by a program
`getTokenAccounts`	Get token accounts by mint or owner
`getBlock`	Get block details by slot number
`getNetworkStatus`	Get Solana network status, epoch, and block height
`getPriorityFeeEstimate`	Get optimal priority fee for a transaction
`simulateTransaction`	Simulate a transaction without submitting it
`getStakeAccounts`	Get a wallet’s Helius validator stake accounts
`getWithdrawableAmount`	Get the withdrawable amount for a stake account

heliusStreaming

Webhook CRUD, Enhanced WebSocket subscription helpers, and LaserStream gRPC config generation.

Action	Description
`getAllWebhooks`	List all webhooks
`getWebhookByID`	Get a specific webhook
`createWebhook`	Create a new webhook
`updateWebhook`	Update an existing webhook
`deleteWebhook`	Delete a webhook
`transactionSubscribe`	Generate an Enhanced WebSocket URL, transaction subscription request, configuration warnings, and a TypeScript example. This action does not open or maintain a WebSocket connection.
`accountSubscribe`	Generate an Enhanced WebSocket URL, account subscription request, configuration warnings, and a TypeScript example. This action does not open or maintain a WebSocket connection.
`laserstreamSubscribe`	Generate a LaserStream gRPC endpoint, subscription configuration, configuration warnings, and a TypeScript example. This action does not open or maintain a live stream; multi-node failover is a LaserStream gRPC product capability.

heliusKnowledge

Docs, guides, pricing, troubleshooting, source code, blog posts, SIMDs, and streaming connection details.

Action	Description
`lookupHeliusDocs`	Search Helius documentation
`listHeliusDocTopics`	List available doc topics
`getHeliusCreditsInfo`	Get credit cost information
`getRateLimitInfo`	Get rate limit details
`troubleshootError`	Diagnose an error code
`getSenderInfo`	Get Sender / Jito / SWQoS documentation
`getWebhookGuide`	Get webhook setup guide
`getLatencyComparison`	Compare streaming latency across products
`getPumpFunGuide`	Get pump.fun integration guide
`recommendStack`	Get recommended Helius stack for your use case
`getSIMD`	Read a specific SIMD proposal
`listSIMDs`	List all SIMD proposals
`readSolanaSourceFile`	Read Solana source code (Agave, Firedancer)
`searchSolanaDocs`	Search Solana documentation
`fetchHeliusBlog`	Fetch a Helius blog post
`getEnhancedWebSocketInfo`	Get Enhanced WebSocket connection details
`getLaserstreamInfo`	Get LaserStream connection details

heliusWrite

Transfers — actions that send transactions on your behalf.

Action	Description
`transferSol`	Send SOL to another wallet (supports `sendMax` to drain full balance)
`transferToken`	Send SPL tokens like USDC, BONK, etc. (supports `sendMax` with ATA close)

heliusCompression

Merkle proofs for compressed NFTs.

Action	Description
`getAssetProof`	Get Merkle proof for a compressed NFT
`getAssetProofBatch`	Batch Merkle proofs for compressed NFTs

​Routed Tool Call Shape

​expandResult

​heliusAccount

​heliusWallet

​heliusAsset

​heliusTransaction

​heliusChain

​heliusStreaming

​heliusKnowledge

​heliusWrite

​heliusCompression