getBlock

getBlock is the core history method on Solana, the high-throughput Proof-of-History and Proof-of-Stake chain whose native token is SOL. Given a slot number, it returns the confirmed block produced at that slot: its blockhash and previousBlockhash, parentSlot, the full list of transactions, any validator rewards paid in lamports (1 SOL = 1,000,000,000 lamports), the blockTime, and the blockHeight. Because Solana advances at roughly 400 ms per slot, blocks accumulate fast, so most callers walk slots returned by getBlocks and pull each one through getBlock. Send the request to https://solana.therpc.io/YOUR_API_KEY as a standard JSON-RPC 2.0 POST with positional params. If the slot was skipped or has been purged from the node ledger, the result is null rather than an error.

Use cases

• Index every transaction in a block for an explorer like Solscan or an analytics pipeline tracking DeFi flows across Jupiter and Raydium.
• Run a lightweight scan by passing transactionDetails: signatures, so you get just the signature list for a slot without downloading full transaction payloads.
• Decode human-readable instructions — SPL Token and Token-2022 transfers, stake operations, system transfers — by requesting encoding: jsonParsed.

Parameters

Response

Example request

1curl https://solana.therpc.io/YOUR_API_KEY \
2  -X POST \
3  -H "Content-Type: application/json" \
4  -d '{
5  "jsonrpc": "2.0",
6  "id": 1,
7  "method": "getBlock",
8  "params": [
9    250000000,
10    {
11      "encoding": "jsonParsed",
12      "maxSupportedTransactionVersion": 0,
13      "transactionDetails": "full",
14      "rewards": false
15    }
16  ]
17}'

Errors & troubleshooting

Common pitfalls

• Always pass maxSupportedTransactionVersion: 0. Modern Solana blocks contain versioned transactions (address lookup tables), and without this option the call errors on any block that includes one.
• Full Solana blocks are large at peak throughput. Trim the payload with transactionDetails (accounts, signatures, or none) and rewards: false whenever you do not need the heavy fields.
• Skipped slots and slots purged from this node's ledger return null. For blocks older than the node's retention window, use an archival endpoint instead of treating the null as a failure.

Supported networks

• Mainnet
• Devnet

See also

• getBlocks
• getBlockTime
• getTransaction
• blockSubscribe