Simplileap logo

// Build

Blockchain Data & Realtime

Querying blockchain state directly is slow and expensive. We build data indexing infrastructure, The Graph subgraphs, Moralis Streams, and custom indexers, that serve on-chain data at the speed of traditional APIs.

// Key benefits

What makes this service valuable

The Graph subgraph development

We build and deploy custom subgraphs that index the events you care about, making complex on-chain queries fast and cost-free at query time.

Real-time event streaming

Moralis Streams and WebSocket providers deliver real-time blockchain events to your application, block-by-block updates for trading feeds, live balance updates, and transaction notifications.

Custom indexers

For complex indexing logic that The Graph cannot express, we build custom Node.js indexers that maintain a PostgreSQL or MongoDB database of processed on-chain events.

// Details

Making blockchain data accessible

Raw blockchain data is difficult to work with, events are unindexed, historical queries require full archive node access, and data relationships are implicit in contract interactions. Indexing solves all of this.

We design the right indexing strategy for your data access patterns: The Graph for complex queries, Moralis Streams for real-time events, or custom indexers for proprietary logic.

// What this includes

  • The Graph subgraph development and deployment
  • GraphQL schema design for on-chain data
  • Moralis Streams for real-time event feeds
  • Custom Node.js indexer development
  • Archive node queries (Alchemy / Infura)
  • Historical data backfill
  • WebSocket event subscriptions

// Deliverables

What you receive

Every engagement produces clear, documented deliverables. Here is exactly what is included in our blockchain data & realtime service.

  • 01The Graph subgraph (deployed to hosted or decentralised network)
  • 02GraphQL API for indexed data
  • 03Real-time event streaming setup
  • 04Custom indexer (if required)
  • 05Documentation for subgraph queries
  • 06Monitoring for indexer health

// In practice

How blockchain data & realtime engagements run

We typically anchor the first sprint on the graph subgraph development. Querying blockchain state directly is slow and expensive. We build data indexing infrastructure, The Graph subgraphs, Moralis Streams, and custom indexers, that serve on-chain data at the speed of traditional APIs. On Residency Road engagements, discovery maps dependencies and success metrics before sprint one. Architecture choices, API contracts, and observability hooks are documented before the first production deploy.

// Stack & frameworks

Stack we use for this

Smart contracts

  • Solidity / Hardhat
  • OpenZeppelin
  • Audit prep
  • Testnet deployment

dApps

  • ethers.js / wagmi
  • Wallet connect
  • IPFS metadata
  • Indexers

Custody & APIs

  • Fireblocks patterns
  • Tatum integrations
  • Webhook reconciliation
  • Multi-sig flows

// Delivery

Simplileap execution framework

01

Architecture mapping

Dependencies, API contracts, compliance constraints, and performance budgets documented before sprint one.

02

Secure sprints

Two-week increments with GitHub access, demo recordings, and QA checkpoints, client visibility at every stage.

03

QA & handover

Automated tests on critical paths, security review, runbooks, and knowledge transfer to your team.

// Proof

Real deployments from Bangalore

Retail loyalty consortium

Challenge
Reward minting required multisig upgrades and metadata pinning.
Simplileap solution
ERC-1155 contracts, Timelock, and IPFS + CDN fallback.
Outcome
48k wallets minted; external audit passed.
Read full case study ›

DAO tooling startup

Challenge
ERC-20 voting hooks lacked cap checks and timelock on admin pause.
Simplileap solution
OpenZeppelin patterns, Slither/Mythril, and audit documentation pack.
Outcome
External audit: zero critical findings post-fix.
Read full case study ›

// Engagement models

How teams engage us

Currency
PackageIdeal forInvestmentIncludes
Smart contract developmentToken & NFT projects₹3L – ₹10L
  • · Solidity
  • · ERC-20 / ERC-721 / TRC-20
  • · Unit tests
  • · Testnet + mainnet deploy
DApp / Web3 productConsumer & B2B Web3₹10L – ₹30L
  • · Frontend + contracts
  • · Wallet connect
  • · Fireblocks custody optional
  • · Indexer integration
Custody & API integrationFintechScoped per integration
  • · Fireblocks patterns
  • · Webhook reconciliation
  • · Multi-sig flows
  • · Compliance hooks

// Company and service positioning

Company and Service positioning is reviewed for production delivery standards by Harsha Parthasarathy (Co-Founder, Strategy & Operations 24+ years IT veteran, IBM, Global Delivery, Program Management) and Keshav Sharma (Co-Founder, Engineering and Lead Architect, Full-stack engineering, product delivery and technical standards).

// Verified entity

Simplileap Digital LLP

// Recognition

Featured in QuickNode Feature Fridays

CIN

AAU-8582

Startup India

DIPP83124

Founded

November 2020

Office

Residency Rd, Bengaluru, India

// FAQ

Common questions about blockchain data & realtime

When should I use The Graph vs a custom indexer?+

The Graph is excellent for event-based indexing of EVM contracts with well-structured events. Custom indexers are needed when you need complex derived state, cross-contract relationships, or data transformations that Subgraph AssemblyScript cannot express.

How fresh is the data in a subgraph?+

Subgraphs are typically 1–5 blocks behind the head (15–75 seconds on Ethereum). For lower latency, WebSocket subscriptions or Moralis Streams provide near-real-time updates.

Ready to get started with blockchain data & realtime?

Share your requirements with our team. We respond within one business day with a clear plan from discovery to delivery.