HTTP Methods

JSON-RPC 2.0 requests use POST to a regional endpoint, with the API key in the api-key query parameter or the x-api-key header.

Endpoints

https://rpc-newyork.constant-k.com/?api-key=YOUR_API_KEY   # New York
https://rpc-frankfurt.constant-k.com/?api-key=YOUR_API_KEY   # Frankfurt
https://rpc-amsterdam.constant-k.com/?api-key=YOUR_API_KEY   # Amsterdam

Accounts

Method	Description	Plans
`getAccountInfo`	Returns all information associated with a single account, including its data, owner and balance.	All plans
`getBalance`	Returns the lamport balance of an account.	All plans
`getMinimumBalanceForRentExemption`	Returns the minimum lamport balance an account of a given size needs to be rent-exempt.	All plans
`getMultipleAccounts`	Returns account info for up to 100 addresses in a single call.	Operator and above
`getProgramAccounts`	Returns every account owned by a program, optionally narrowed by size and byte-content filters.	Blade Runner and above
`getProgramAccountsV2`	Page through a program's accounts in fixed-size chunks using a cursor, instead of one unbounded response.	Blade Runner and above

Tokens

Method	Description	Plans
`getTokenAccountBalance`	Returns the token balance of a single SPL Token or Token-2022 account.	All plans
`getTokenAccountsByDelegate`	Returns every token account that has approved a given address as its delegate.	All plans
`getTokenAccountsByOwner`	Returns every token account owned by a given wallet, optionally filtered to one mint or token program.	Operator and above
`getTokenLargestAccounts`	Returns the 20 largest token accounts of an SPL Token or Token-2022 mint, by balance.	Blade Runner and above
`getTokenSupply`	Returns the total supply of an SPL Token or Token-2022 mint.	All plans

Transactions

Method	Description	Plans
`getSignaturesForAddress`	Returns recent transaction signatures that touched a given address, newest first.	Operator and above
`getSignatureStatuses`	Returns the confirmation status of up to 100 transaction signatures.	Operator and above
`getTransaction`	Returns full details for a single confirmed transaction by signature.	All plans
`getTransactionCount`	Returns the total number of transactions ever processed by the cluster.	All plans
`sendTransaction`	Submits a signed transaction to the cluster and returns its signature immediately.	All plans
`simulateTransaction`	Runs a transaction against current bank state without submitting it, returning logs, balance changes and any error.	All plans

Fees & Blockhash

Method	Description	Plans
`getFeeForMessage`	Returns the fee, in lamports, that a compiled transaction message would cost right now.	All plans
`getLatestBlockhash`	Returns a recent blockhash and the last block height it remains valid through.	Operator and above
`getRecentPrioritizationFees`	Returns per-slot prioritization fees paid recently, optionally scoped to a set of accounts.	All plans
`isBlockhashValid`	Checks whether a blockhash is still recent enough to be accepted by the network.	All plans

Blocks

Method	Description	Plans
`getBlock`	Returns full details for a confirmed block by slot number.	All plans
`getBlockCommitment`	Returns the stake-weighted vote commitment history for a specific block.	All plans
`getBlockHeight`	Returns the current block height the node has processed.	All plans
`getBlockProduction`	Returns per-validator block production stats (slots led vs. blocks actually produced) for a slot range.	All plans
`getBlocks`	Returns confirmed block slot numbers within a given range, skipping any slots that were never produced.	Blade Runner and above
`getBlocksWithLimit`	Returns up to `limit` confirmed block slot numbers starting from a given slot.	Blade Runner and above
`getBlockTime`	Returns the estimated production time of a confirmed block.	All plans
`getFirstAvailableBlock`	Returns the oldest block from which every later block can be retrieved with getBlock.	All plans

Slots & Epochs

Method	Description	Plans
`getEpochInfo`	Returns information about the current epoch, including progress through it.	All plans
`getEpochSchedule`	Returns the cluster's epoch-length parameters.	All plans
`getHighestSnapshotSlot`	Returns the highest full and incremental snapshot slots the node has generated.	All plans
`getLeaderSchedule`	Returns the full slot-leader assignment for an epoch, grouped by validator identity.	All plans
`getMaxRetransmitSlot`	Returns the highest slot the node has seen and retransmitted shreds for.	All plans
`getMaxShredInsertSlot`	Returns the highest slot the node has inserted shreds for into its blockstore.	All plans
`getRecentPerformanceSamples`	Returns recent per-sample-period throughput statistics for the cluster.	All plans
`getSlot`	Returns the current slot the node has processed.	All plans
`getSlotLeader`	Returns the identity of the current slot leader.	All plans
`getSlotLeaders`	Returns the slot leader for each slot in a forward-looking range.	All plans
`minimumLedgerSlot`	Returns the oldest slot the region's ledger holds.	All plans

Network & Cluster

Method	Description	Plans
`getClusterNodes`	Lists every node visible in the cluster's gossip network, with its ports and client version.	All plans
`getGenesisHash`	Returns the genesis hash that identifies which cluster the node belongs to.	All plans
`getHealth`	Reports whether the RPC node is caught up with the cluster and safe to send traffic to.	All plans
`getIdentity`	Returns the identity public key of the node that answers the request.	All plans
`getVersion`	Returns the software version and feature set of the node that answers the request.	All plans

Staking & Inflation

Method	Description	Plans
`getInflationGovernor`	Returns the cluster's inflation schedule parameters (initial rate, taper, terminal rate).	All plans
`getInflationRate`	Returns the specific inflation rate values in effect for the current epoch.	All plans
`getInflationReward`	Returns the inflation reward paid to a list of stake accounts for a given epoch.	All plans
`getStakeMinimumDelegation`	Returns the minimum number of lamports required to delegate a stake account.	All plans
`getSupply`	Returns total and circulating SOL supply, plus the list of non-circulating accounts.	Blade Runner and above
`getVoteAccounts`	Returns the current and delinquent vote accounts, with their stake and voting history.	All plans

HTTP Methods

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