Kaia Data: Index Contracts, Tokens, and LINE Mini Dapps

Index Kaia's contract events, KAIA and token transfers, and decoded transactions, including LINE Mini Dapp activity, delivered to your own database. Real-time and complete history, no node to run.

Kaia is the EVM Layer 1 built for Asia's messenger-scale consumer base. It launched its mainnet on August 29, 2024 as the merger of Klaytn, originally built by Kakao, and Finschia, originally built by LINE, folding both KLAY and FNSA into the single KAIA token. The pitch is distribution: rather than ask users to discover crypto, Kaia ships Web3 to LINE's messenger audience through in-app Mini Dapps, with roughly 1-second blocks, immediate finality, and full Solidity tooling. You can read how the team frames it at kaia.io.

That consumer reach is the data problem. Kaia pairs an Ethereum-compatible execution layer (the Kaia Virtual Machine, a modified EVM you target with Hardhat, Foundry, and Remix) with payments, stablecoin, and Mini Dapp activity flowing in from a messenger-native audience. Contract events, KAIA and token transfers, and decoded calls pour out of every block. Indexing Co covers Kaia 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 Kaia L1 blocks

Ingest blocks, logs, traces

Decode ABIs to events

Transform your JavaScript

Deliver your database

Why Kaia data is hard

Messenger-Scale Consumer Activity Kaia targets LINE's messenger audience through in-app Mini Dapps, where short sessions, frequent low-value transactions, and viral spikes are the norm. With roughly 1-second blocks and immediate finality, the chain head moves fast, and a consumer dataset has to keep up without falling behind.

Two Ecosystems, One Chain Kaia is the merger of Kakao's Klaytn and LINE's Finschia. Klaytn dapps carried over with minimal changes, while Finschia dapps migrated in from a different model, and both legacy tokens collapsed into KAIA. A complete history has to span that lineage rather than starting at the rebrand.

Decoding Across Many Mini Dapps A real Kaia dataset spans games, social, stablecoin, and payments Mini Dapps at once, each with its own contracts, token standards, and event schemas. Every protocol needs the right ABI, and proxy upgrades make the correct ABI a moving target as apps ship updates.

Your Own DB, Not a Hosted API Generic RPC endpoints and hosted query APIs leave you rate-limited and renting someone else's schema. Powering a Mini Dapp, payments flow, or analytics workload on Kaia means owning the data in your own store, shaped the way your product queries it.

What Indexing Co delivers for Kaia

The DIY Path

Stand up and maintain the whole stack yourself.

Run a Kaia 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-Mini-Dapp event schemas by hand.
Build backfill, reorg handling, and real-time delivery from scratch.

Indexing Co

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

Kaia contract events, KAIA and 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 Kaia, for example
Contract events and logs	Mini Dapp game and social actions, DEX swaps
Token transfers (ERC-20, ERC-721)	KAIA and stablecoin payments, in-app NFT items
Decoded transactions and traces	LINE Mini Dapp user activity
Protocol and account state	Wallet balances, staking, lending positions

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;
}

Kaia with Indexing Co

Run it yourself if

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

Use Indexing Co if

You want Kaia 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 Kaia node?

No. Indexing Co sources Kaia 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 LINE Mini Dapps on Kaia?

Yes. Kaia runs an Ethereum-compatible execution layer, so point a pipeline at any Mini Dapp contract or set of contracts and we decode the events against the right ABI, the same way we handle any other Kaia protocol.

Does Indexing Co cover both the Klaytn and Finschia history?

Yes. Kaia is the merged successor of Klaytn and Finschia. We backfill from your chosen start block, so you can capture the lineage that matters to your dataset rather than starting at the rebrand.

Where does the Kaia data go?

Into your own destination: PostgreSQL, BigQuery, a warehouse, or a webhook. You define the output schema and own the storage.

Can I get complete historical Kaia data?

Yes. We backfill from your chosen start block and merge it with real-time data, so your Kaia dataset is gap-free from your start point forward.

Get Started

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