MCP Tool Catalog

Full catalog of the Helius MCP server: 9 routed domain tools plus expandResult, with the actions exposed by each — onboarding, DAS, RPC, transfers, webhooks, streaming, wallet analysis, billing, Solana knowledge, and 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, wallet transaction history, and priority fee estimation.

Action	Description
parseTransactions	Parse transactions into human-readable format
getTransactionHistory	Get enhanced transaction history for an address
getPriorityFeeEstimate	Get optimal priority fee for a transaction

heliusChain

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

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

heliusStreaming

Webhook CRUD, Enhanced WebSocket subscriptions, and LaserStream gRPC config.

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	Subscribe to transaction events (Enhanced WebSockets)
accountSubscribe	Subscribe to account changes (Enhanced WebSockets)
getEnhancedWebSocketInfo	Get Enhanced WebSocket connection details
laserstreamSubscribe	Subscribe to gRPC data streams
getLaserstreamInfo	Get LaserStream connection details

heliusKnowledge

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

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

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