Who is using Solana this minute?
ProgramPulse reads the newest blocks in full, drops validator votes, and counts every program each transaction touched, including the ones called inside a swap route. The board re-ranks every few seconds.
Leaderboard
Reading the newest block…Txs = transactions in the window that touched the program at least once. Calls = top-level instructions plus CPI calls (in brackets). Success = share of those transactions that did not fail. Avg CU = compute used by the whole transaction, averaged. Arrows compare the rank against the older half of the window. Names come from a built-in list plus Jupiter's program labels; anything else links to Solscan by address.
The blocks behind the board.
Solana makes a block roughly every 400 ms, far more than one page can read in full, so ProgramPulse samples: one fresh block about every eight seconds, keeping the last twelve. Each card is one block, with its busiest app.
Counted once per transaction
A Jupiter swap that routes through three pools touches Jupiter, each pool, the token program and compute budget. Each counts once toward its own "Txs".
Plumbing hidden by default
System, token, compute budget and similar programs appear in nearly every transaction. "Apps only" hides them so you see who is driving activity; "Everything" shows them back.
Failures are real
Bots send many transactions that fail on purpose-built checks (slippage, already-filled arbitrage). A low success rate usually means a contested program, not a broken one.
Is this every transaction on Solana?
No. It is a rolling sample of up to twelve recent blocks, read with getBlock from public RPC. The ranking is stable over a minute or two, but a single bursty program can jump in and out.
Why are votes excluded?
Validator vote transactions make up roughly half of all transactions and all call the same program. They tell you nothing about what users are doing.
An important program is unlabelled.
Unknown IDs are shown as addresses with a Solscan link. The built-in list covers the major DEXs, launchpads, lending and infrastructure programs.