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Blockchain Data

Instantly track any smart contract events with seamless real-time notification

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Hassle-Free Blockchain Data Indexing

Leandexer offers a comprehensive Indexer-as-a-Service solution for blockchain data, allowing you to monitor any smart contract event in real-time.

Hyper Scalable

Track a limiteless number of smart contract events: tokens, DeFi, and wallet.

Infrastructure Free

Forget about the hassle of setting up and maintaining IT infrastructure.

A Powerful Indexing Engine

Leandexer provides a unified source of data streams for any smart contract activities and insure real-time notifications empowering users with timely and accurate information.
Any EVM-Blockchain
Index all EVM-compatible Blockchain networks, both public and custom
Any Smart Contract
Capability to track activities across all ERC standards, including custom ones, DeFi, Wallet
Live Notifications
Real time customizable notifications: webhook, e-mail, Slack, Zappier

How does Leandexer work ?
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Leandexer enables anyone without coding skills to easily monitor
smart contract activities right at their fingertips.

Select Networks

Select the blockchain network where your smart contract is deployed.
01 - Select Networks

Choose an Address

Define the smart contract address you want to track. It could be a token, a DeFi protocol or anything else.
02 - Choose an Address

Select Event Type

Define the event type you wish to track. It could be a transfer, burn, mint.
03 - Select Event Type

Choose Notification Channel

Choose how you want to be notified: Webhooks, emails, Slacks or others.
04 - Choose Notification Channel

+3B Events Indexed

Leandexer already recorded over 3 billions events from various tokens, DeFi and custom smart contracts since its inception.

Build the Web3 Future

Fuel your applications with real-time blockchain data, ensuring your project to always have access to the latest information.
Use Cases for Developers

Empowered Decisions

Leverage real-time blockchain data to gain valuable insights, drive smart decisions, and always stay ahead of the curve.
Use Cases for Analysts
“Leandexer provide reliable data that helped Tokeny’s team to save approximately 75% of their development time."

Tony Malghem

CTO, Tokeny

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Robust and proven indexing technology is now available for all.

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Frequently Asked Questions

What kind of data does Leandexer display?

Leandexer's indexing engine systematically captures every event emitted by a smart contract on a blockchain network.
This advanced capability allows users to selectively filter the types of data they wish to access and display it, either through Leandexer user interface or API.
For instance, a user who needs to track a specific smart contract address can choose to monitor one or multiple events (such as minting, burning, or transferring) from that smart contract and receive notifications about them.

Which types of ERC tokens can Leandexer track?

Currently, Leandexer is able to track ERC-20 and ERC-3643 standards. The next release will include capabilities of tracking any kind of ERC standard thanks to a custom ABI allowing users to upload their own custom standard.

Can historical data be retrieved from a previous block?

The indexing engine archives all blockchain data, storing it in a database. This enables querying of the entire blockchain history, from the genesis block to the latest transactions. It covers comprehensive historical details of smart contracts across supported blockchain networks.

Can Leandexer handle chain reorganizations effectively?

The Leandexer indexing engine is adept at processing chain reorganizations, ensuring the delivery of coherent and accurate data.

What types of events is Leandexer capable of indexing?

All types of events are indexed by Leandexer indexing engine.

How many networks are compatible with Leandexer?

Leandexer is compatible with all EVM-based blockchain networks, including both public and private ones.To begin indexing data with Leandexer on custom networks, simply input the appropriate RPC endpoint.

Where the blockchain data come from ?

Blockchain data is sourced directly from nodes managed by a leading Blockchain infrastructure provider, guaranteeing uninterrupted access to data 24/7.