Avalanche Data: Index the C-Chain and Avalanche L1s

Index Avalanche's C-Chain and custom Avalanche L1s in one pipeline, decoded into a unified schema and delivered to your own database. Real-time and complete historical data, no node to run.

Avalanche calls itself technology built for business, with near-instant finality from its Snowman consensus and the ability to spin up a fully customizable Layer 1 in production. The C-Chain is the EVM-compatible execution layer where most DeFi, tokens, and contracts live, while a growing portfolio of Avalanche L1s (formerly subnets) lets institutions, payment networks, and game studios run purpose-built chains with their own gas token, validator rules, and congestion isolation. You can read their own framing at avalanche.com.

That many-chain design is exactly what makes the data hard. Indexing Co indexes the C-Chain and your Avalanche L1s in a single pipeline, decodes everything into the schema you define, and delivers it to your own PostgreSQL, warehouse, or webhook. Real-time and full history, with no node to operate.

Source C-Chain + Avalanche L1s

Ingest blocks and logs

Decode raw to structured

Transform your JavaScript

Deliver your database

Why Avalanche data is hard

Many Chains, One Product Avalanche is not one chain. The C-Chain holds your DeFi and tokens, while Avalanche L1s run separate execution environments with their own validators. A complete view of a multi-L1 app means indexing several chains and joining them, not querying one endpoint.

L1s Drift From The Default Custom Avalanche L1s can change the gas token, fee logic, validator set, and precompiles at genesis. A pipeline tuned for the C-Chain will not automatically read a game or institutional L1 correctly. Each one needs to be sourced and decoded on its own terms.

Fragmented Schemas The same token on L1 X is not the same asset as on L1 Y, and Interchain Messaging moves value between them. Without a unified schema across the C-Chain and every L1, cross-chain balances, transfers, and activity are nearly impossible to reconcile.

Throughput Without Falling Behind Sub-second finality and a many-chain footprint mean events arrive fast and from several places at once. Capturing all of it in real time, with reorg handling and gap-free backfill, is a real engineering problem to run yourself.

What Indexing Co delivers for Avalanche

The DIY Path

Stand up and operate the stack across every chain yourself.

Run or rent C-Chain archive access plus a node per Avalanche L1.
Decode each L1's custom gas token, fees, and precompiles separately.
Reconcile Interchain Messaging transfers across chains by hand.
Build backfill, reorg handling, and real-time delivery from scratch.

Indexing Co

One pipeline covers the C-Chain and your L1s, in one schema.

C-Chain and any EVM-based Avalanche L1 in a single pipeline.
Decoded data unified across chains, shaped by your JavaScript transform.
Lands in your PostgreSQL, BigQuery, warehouse, or webhook.
Real-time delivery plus complete backfilled history. No node, no per-L1 plumbing.

What you can index

C-Chain (EVM)	Avalanche L1s
Contract events and logs	Custom L1 events and logs
Token transfers (ERC-20, ERC-721, ERC-1155)	Game and app-specific contract state
Decoded transactions and traces	Custom gas token activity
DeFi protocol state (DEX, lending, RWA)	Interchain Messaging transfers

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;
}

Avalanche with Indexing Co

Run it yourself if

You only need the C-Chain, have the team to run archive nodes and a node per L1, and want full control of the infrastructure across every chain you touch.

Use Indexing Co if

You want the C-Chain and your Avalanche L1s decoded into one schema and delivered to your own database, with real-time plus complete history and no infrastructure to run.

Get a Demo Open the Console

FAQ

Does Indexing Co index Avalanche L1s, or only the C-Chain?

Both. The C-Chain and any EVM-based Avalanche L1 can be indexed in the same pipeline and delivered into one unified schema, so you can join activity across chains instead of querying each one separately.

How do you handle a custom L1's gas token and validator rules?

We source and decode each EVM-based L1 on its own terms, including custom gas tokens, fee logic, and precompiles set at genesis.

Can I get complete historical Avalanche data?

Yes. We backfill history from your chosen start block and merge it with real-time data so the C-Chain and each L1 are gap-free.

Where does the Avalanche data go?

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

Do I need to run an Avalanche node?

No. Indexing Co handles sourcing the C-Chain and your Avalanche L1s, including history, so you do not run or maintain any nodes.

Get Started

Index Avalanche in minutes. Set up your first C-Chain or Avalanche L1 pipeline without running a node.