Helius Credits

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What are credits?

Credits are a unit of account that we use to bill usage for RPCs, API requests, and data streaming products like LaserStream gRPC and LaserStream WebSocket. Every plan has a base number of credits, and every API call has an assigned credit cost. Below, we outline the credits per plan, credit costs by API, and credits for streaming data.

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Base Credits by Plan

Here is a breakdown of the total number of credits that are included by default in each plan. If you need more credits, upgrade your plan, enable autoscaling, purchase prepaid credits, or contact sales to discuss enterprise options. For more information, read our plans and pricing guide

Feature	Free	Developer	Business	Professional
Pricing	$0/month	$49/month	$499/month	$999/month
Monthly Credits	1M	10M	100M	200M

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Standard Credits

Service	Credits	Notes
Standard RPC Calls	1	All RPC calls except those listed separately
getProgramAccounts	10	Get all accounts/data owned by a program
getProgramAccountsV2	1	Paginated version of getProgramAccounts
simulateBundle	1	Simulate Jito Bundles
Priority Fee API	1	Estimate priority fees
DAS API	10	All DAS endpoints
Enhanced Transactions	100	Legacy transaction parsing, in maintenance mode
Parsed Events	10	Per request. Successor to Enhanced Transactions. All plans.

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Parsed Events

Parsed Events parses transaction signatures and address history into decoded instructions over REST. Available on all plans at 10 credits per request, for both POST /v1/parsed-events/transactions and POST /v1/parsed-events/transaction-history.

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Historical Data Credits

Historical data queries, sometimes called archival calls, cost 1 credit each. Exceptions are getTransactionsForAddress, which starts at 10 credits and is metered by returned results, and getTransfersByAddress, which costs 10 credits.

Method	Credits	Description
getBlock	1	Retrieve block data and transactions for a specified slot
getBlocks	1	Get list of blocks between two slots
getBlocksWithLimit	1	Get blocks starting at a given slot with limit
getSignaturesForAddress	1	Get transaction signatures for an address
getTransaction	1	Retrieve transaction details for a specified signature
getBlockTime	1	Get estimated production time of a block
getSignatureStatuses	1	Get statuses for transaction signatures
getInflationReward	1	Get inflation reward for a list of addresses for an epoch
getTransactionsForAddress	10+	Enhanced transaction history with advanced filtering and sorting. Full transactions cost 10 credits per 100 returned; signatures-only responses cost 10 credits flat. Returns up to 1,000 full transactions or signatures.
getTransfersByAddress	10	Parsed token and native SOL transfer history. Returns up to 100 transfers.

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getTransactionsForAddress

getTransactionsForAddress metering scales with what a successful response returns: Examples:

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Data Streaming Credits

Unlike regular credits that assign credits per call, data streaming products like LaserStream gRPC and LaserStream WebSocket assign credits per amount of data consumed. Parsed Streams, Preconfirmations, and Preprocessed Transactions are metered per delivered message instead.

Service	Credits	Notes
LaserStream WSS (standard Solana methods)	2	Per 0.1 MB of streamed data (uncompressed). All plans.
LaserStream WSS (Helius extensions)	2	Per 0.1 MB of streamed data (uncompressed). Developer, Business, and Professional plans.
LaserStream gRPC	2	Per 0.1 MB of streamed data (uncompressed). Business and Professional plans (Mainnet); all plans (Devnet).
Preprocessed Transactions — preprocessedSubscribe (WSS)	0.1	Per message (one message per delivered transaction). All paid plans.
Parsed Streams — parsedTransactionSubscribe (WSS)	1	Per delivered event (one event per matching transaction). All plans.
Data Add-on (Pro Plan only)	2	Per 0.1 MB after included allowance (5-100TB). Applies to LaserStream gRPC and LaserStream WebSocket usage.

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Preconfirmations

Preconfirmations stream transactions over a WebSocket at the lowest possible latency. Available on Professional plans and higher. Metered at 10 credits per message (one message per streamed transaction), with a minimum of 300 credits per slot for each subscription. The minimum only applies to slots with preconfirmation coverage. In each covered slot, a subscription is billed whichever is greater: 10 credits per delivered message, or 300 credits. For example, 10 or 30 messages in a slot cost 300 credits, and 100 messages cost 1,000 credits. A covered slot with no matching messages still costs 300 credits. Slots without coverage cost nothing. With includeBam: false, slots covered only by BAM don’t count, so you aren’t charged for them. See Pricing for every coverage scenario. Preconfirmations is a new product and pricing is subject to change.

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LaserStream WebSocket

LaserStream WebSocket serves the standard Solana subscription methods alongside the Helius-specific extensions (transactionSubscribe, enhanced accountSubscribe) on the unified wss://mainnet.helius-rpc.com endpoint. Standard methods are available on all plans; the Helius extensions require a Developer, Business, or Professional plan. All WebSocket usage is metered at 2 credits per 0.1 MB of uncompressed streamed data.

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LaserStream gRPC

LaserStream gRPC Mainnet is available on Business and Professional plans. LaserStream gRPC Devnet is available on all plans. All users pay 2 credits per 0.1 MB of uncompressed streamed data.

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Preprocessed Transactions

Preprocessed transactions (decoded shreds, ~8 ms ahead of processed) are delivered over the preprocessedSubscribe WebSocket, available on all paid plans and metered at 0.1 credits per message (one message per delivered transaction).

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Parsed Streams

Parsed Streams push decoded, server-side filtered transactions over the parsedTransactionSubscribe WebSocket. Available on all plans and metered at 1 credit per delivered event, the same rate as webhook events. Parsed Streams is the successor to Enhanced Transaction Webhooks.

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Shred Delivery — Raw Shreds

Raw Shreds (UDP) is our premier, low-latency shred delivery service. You can access raw shreds from your Helius Dashboard. Simply add a seat and enter your IP address to start receiving shreds. Raw shreds do not consume credits. Raw shreds are available to all customers. Each seat is $1,000/month and binds to one IP. If you are on a Professional plan, each seat costs $800/month/IP.

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Data Add-ons

If you’re on a Professional plan, you may purchase Data Add-ons between 5TB-100TB per month to be used for both LaserStream gRPC and LaserStream WebSocket. Beyond your allowance, streamed data uses your plan credits at 2 credits per 0.1 MB of uncompressed data.

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Data Size

Billing for data streaming products is based on uncompressed message size. Typical sizes include:

• Block (~4MB)
• Account (~0.0004MB)
• Transaction (~0.0006MB)

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Transaction Submission Credits

Helius offers two primary transaction submission methods: Sender, our specialized transaction landing service for traders and low-latency applications; and Staked Connections (default) for fast, reliable landing rates.

Method	Credits	Description
Sender	0	Ultra-low latency submission
Staked Connections	1	Highest reliability (default)
sendBundle	10	Bundle submission via Jito

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DAS API Credits

All DAS API requests cost 10 credits each:

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Wallet API Credits

All Wallet API requests cost 100 credits each:

Service	Credits	Notes
Wallet Identity	100	Get wallet identity (exchanges, protocols, institutions)
Batch Identity Lookup	100	Look up up to 100 addresses in a single request
Wallet Balances	100	Get token and NFT balances with USD values
Historical Balance	100	Get a token or SOL balance at a past timestamp or slot
Wallet History	100	Get transaction history with balance changes
Token Transfers	100	Get all token transfer activity
Wallet Funding Source	100	Discover who originally funded a wallet

For more information on using the Wallet API, read our Wallet API documentation.

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Wallet-as-a-Service Credits

Wallet-as-a-Service bills through your existing Helius credits — there is no separate subscription and no per-monthly-active-user fee. Each signature costs 200 credits ($0.001 at the standard credit rate), which covers the embedded wallet and signing.

Service	Credits	Notes
WaaS Signature	200	Per signature: signMessage, signTransaction, and signAndSendTransaction each produce one. Billed when the signature is produced, even if the transaction later fails on-chain; signing that never completes (e.g. a cancelled prompt) is free. Wallet creation is free.

Track wallets, signatures, and credits spent on the dashboard in WaaS → Analytics.

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Webhook Credits

Service	Credits	Notes
Webhook Events	1	Per event sent by Helius, regardless of successful or failed endpoint responses
Webhook Management	100	Create, edit, delete webhooks

For more information on using webhooks, read our quickstart guide. For decoded transactions with instruction-level filtering over WebSocket, see Parsed Streams, billed at the same 1 credit per event.

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ZK Compression Credits

All ZK Compression API calls cost 10 credits each. One exception is getValidityProof which costs 100 credits per request because it is computationally intensive.

Service	Credits	Notes
ZK Compression API	10	ZK Compression RPC calls
getValidityProofs	100	Compute ZK proofs

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