THE NEW HOME OF JETSTREAMER & HORIZON

Executionless
Solana replay.

Stream Solana transactions and account updates without re-executing the chain. Jetstreamer and Horizon put chain history in your hands.

A PUBLIC FOUNDATION FOR SOLANAHorizon generation & public hosting supported by the Solana Foundation

01 / THE OPEN ARCHIVE

Every transaction, every account update.
Genesis to tip.

Horizon preserves historical transactions, blocks, and reconstructed account updates in a compact, verifiable archive that can be freely enumerated without the need for re-execution.

Vaultic executes the historical chain to build the archive. You use Jetstreamer to replay its recorded results into your workflows. Rebuild an index or research a market without running the historical validator stack yourself.

Inside Horizon
HORIZON / ARCHIVE STRUCTUREOPEN DATA
TRANSACTIONSACCOUNT UPDATESBLOCKS & ENTRIES
Free public accessA shared foundation for builders without the gatekeeper
Executionless replayRecorded state, ready for your workflows
Built to be verifiedPoH verified genesis to tip

02 / FIND YOUR SIGNAL

Complete chain history.
Or just the parts you need.

Start with the public archive.
Go further with a focused pipeline
built around your workload.

Loading pipeline…
THE PUBLIC FOUNDATIONFREE

History worth keeping.
Open to everyone.

Horizon stores the results of historical Solana execution, including account updates. Replay them with Jetstreamer without executing the transactions again.

  • Transactions, blocks, entries, and account updates
  • Executionless replay through Jetstreamer
  • Checksum and historical replay verification
Explore Horizon Backfill in progress

The archive is growing. Focused pipelines are in development. Open a pipeline link in a new tab if its preview does not load.

03 / THE REPLAY ENGINE

The new home
of Jetstreamer.

Built at Anza. Continuing at Vaultic.
The engine for historical backfills,
indexers, and research.

01

Execute once.

Reconstruct and verify historical execution to build Horizon. Preserve the resulting account updates alongside the original transactions.

02

Replay without execution.

Jetstreamer streams recorded history into your plugins. Transactions and account updates are ready to consume, with no need to execute the chain again.

03

Build on the stream.

Backfill an index, study program behavior, or prepare a focused export. Your code decides what to keep, and shared exports spread preparation costs across customers.

HORIZON / BULK DECODE

Millions of transactions. Every second.

4.7M transactions per second for metadata decode on a 64-core machine, recorded in the August 2026 project benchmark. Replay throughput depends on your hardware, data source, and plugin workload.

Explore Jetstreamer

A PIPELINE OF YOUR OWN

Your criteria.
Your next discovery.

Specific programs. A set of tokens. A question that needs its own pipeline. Define the filters and exports for the work you want to do.

Custom filtersHistorical backfillsOngoing updates
YOUR PIPELINE BRIEF01
FOCUS
Your tokens & programs
HISTORY
The range you need
DELIVERY
Built for your workflow
Build a pipeline brief

Define your needs. Save a brief for your team.

A FEW THINGS TO KNOW

Before you
head out.

Is Horizon really free?

Yes. Horizon is being built as a free public dataset. A Solana Foundation grant supports the generation server and public hosting. Vaultic's planned paid pipelines add focused exports and managed custom work.

What does executionless replay mean?

The archive producer executes historical transactions and records their results, including account updates. Jetstreamer reads those results into your plugins without re-executing the transactions. You can process historical state changes without paying the cost of validator execution for every backfill.

Can I use a pipeline today?

Horizon generation and uploads are underway. A verified public catalog and download links will follow. Focused paid pipelines are in development; this site does not offer checkout yet.

Do I need to switch my RPC provider?

You can keep your existing RPC provider for live application traffic. Vaultic is developing pipelines that prepare historical data for your research and development workflow.