Sonic Data: Index Contracts, Tokens, and Onchain Apps

Index Sonic's contract events, token transfers, and decoded transactions in one pipeline, delivered to your own database. Real-time and full historical data, no node to run.

Sonic bills itself as the highest-performing EVM Layer 1, built by the team behind Fantom Opera and shipped as a full network upgrade with the S token. It pairs high throughput (Sonic Labs cites over 400k TPS) with sub-second, single-block finality, and adds developer-side features the old chain never had, including Fee Monetization that pays apps up to 90% of the fees they generate and a native Sonic Gateway to bridge value from Ethereum. You can read how the team frames it at soniclabs.com.

That throughput is the data problem. Sonic runs on its own SonicVM execution layer and SonicDB storage, stays fully EVM compatible at chain ID 146, and emits contract events, token transfers, and decoded calls fast enough to outrun a naive scraper. Indexing Co covers Sonic in a single pipeline, decodes the raw chain into the shape you want, and delivers it to your own PostgreSQL, warehouse, or webhook. Real-time and full history, with no node to operate.

Source Sonic L1 blocks

Ingest blocks, logs, traces

Decode ABIs to events

Transform your JavaScript

Deliver your database

Why Sonic data is hard

High-Throughput Block Stream Sonic is built for far higher throughput than the Opera chain it replaced. Reading that block stream in real time, decoding every log, and keeping pace with the chain head is a standing engineering job, not a cron script.

Sub-Second Finality, Real-Time Reads Single-block finality lands in under a second, so the window between a transaction confirming and your product needing the data is tiny. An indexer that batches on a slow poll falls behind; you want decoded events arriving as fast as Sonic settles them.

Fee Monetization Accounting FeeM pays registered apps up to 90% of the fees their contracts generate. Tracking which contracts are enrolled, attributing fees per app, and reconciling the developer payout stream means decoding fee and registration events into structured rows, not eyeballing a block explorer.

History Across the Fantom Migration Sonic launched as a fresh network with its own genesis, distinct from Fantom Opera, and the FTM-to-S upgrade moved balances over a 1:1 portal. A complete dataset has to start from Sonic's own block zero and stay gap-free as new protocols deploy.

What Indexing Co delivers for Sonic

The DIY Path

Stand up and maintain the whole stack yourself.

Run a Sonic archive node or wire up a third-party RPC.
Fetch and decode logs, traces, and receipts against the right ABIs.
Track proxy upgrades and per-protocol event schemas by hand.
Build backfill, reorg handling, and real-time delivery from scratch.

Indexing Co

One pipeline sources, decodes, and delivers Sonic to your store.

Sonic contract events, token transfers, and decoded txs in a single pipeline.
Decoded data, shaped by your JavaScript transform.
Lands in your PostgreSQL, BigQuery, warehouse, or webhook.
Real-time delivery plus complete backfilled history. No node, no RPC babysitting.

What you can index

EVM data type	On Sonic, for example
Contract events and logs	DEX swaps, lending borrows, perp positions
Token transfers (ERC-20, ERC-721)	S and stablecoin transfers, NFT mints
Decoded transactions and traces	Sonic Gateway bridge deposits and withdrawals
Protocol and account state	FeeM-enrolled contract fees, vault and staking balances

A transform, not a subgraph

You write the transform in JavaScript, not AssemblyScript, and change it without re-indexing from block zero. Indexing Co runs your function over each block server-side: decode the logs you care about and return rows for your destination.

// Indexing Co transform: reshape each block into rows for your database
function transform(block) {
  const results = [];
  const signatures = [
    'event Transfer(address indexed from, address indexed to, uint256 value)'
  ];

  for (const tx of block.transactions || []) {
    for (const log of tx.receipt?.logs || []) {
      const event = utils.evmDecodeLogWithMetadata(log, signatures);
      if (!event) continue;
      results.push({
        chain: block._network,
        block: Number(block.number),
        tx_hash: tx.hash,
        contract_address: log.address?.toLowerCase(),
        from: event.decoded.from,
        to: event.decoded.to,
        value: event.decoded.value,
      });
    }
  }
  return results;
}

Sonic with Indexing Co

Run it yourself if

You want full control of node infrastructure and have the team to operate a Sonic archive node, decode every protocol's ABIs, and build backfill and reorg handling in-house.

Use Indexing Co if

You want Sonic contract events, token transfers, and decoded transactions delivered to your own database, with real-time plus complete history and no infrastructure to run.

Get a Demo Open the Console

FAQ

Do I need to run a Sonic node?

No. Indexing Co sources Sonic blocks, logs, and traces for you, including full historical data, so you never operate an archive node or babysit an RPC endpoint.

Can I index any protocol on Sonic?

Yes. Point a pipeline at any Sonic contract or set of contracts, from DEXs and lending markets to Sonic Gateway and your own deployments, and we decode the events against the right ABI.

Does Indexing Co handle Sonic reorgs and proxy upgrades?

Yes. The pipeline accounts for chain reorganizations and tracks proxy implementation changes so your decoded data stays correct as contracts upgrade.

Can I index Fee Monetization data on Sonic?

Yes. FeeM registration and fee events are just contract events. We decode them into structured rows so you can attribute fees per app and reconcile developer payouts in your own store.

Can I get complete historical Sonic data?

Yes. We backfill from your chosen start block and merge it with real-time data, so your Sonic dataset is gap-free from genesis forward if you want it.

Get Started

Index Sonic in minutes. Set up your first Sonic contract or token pipeline without running a node.