Educational

How to deploy a USDC subgraph with Ormi 0xGraph

Learn how to deploy and query a USDC subgraph on Ethereum using Ormi’s 0xGraph. Follow this step-by-step guide to access real-time transfer data via GraphQL - no RPCs required. Start for free.

Wen-Chiao

26 Aug 2025 • 3 min read

Subgraphs let you query on-chain data with GraphQL, eliminating the need for crawling logs or relying on RPC calls. With Ormi’s 0xGraph, anyone can deploy and query subgraphs in just a few steps, completely free.

This tutorial will guide you through creating and deploying a subgraph that indexes USDC (ERC-20) transfers on Ethereum mainnet.

What you’ll need

An Ormi Labs account
Graph CLI installed (npm install -g @graphprotocol/graph-cli)
node.js installed
Git installed
The USDC contract on Ethereum mainnet: 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48

Tip: USDC launched on Ethereum in Sept 2018; you can confirm addresses per chain in Circle’s docs if you ever target other networks.

Getting started

Go to Ormi and sign in.
From the dashboard, create an API key for deployments.

Keep this page open, we’ll need the API key to deploy a subgraph.

Running Subgraph CLI

Run the Graph CLI init flow:

graph init usdc-subgraph

When prompted:

Network: Ethereum Mainnet
Source: Smart contract: Ethereum
Subgraph slug: <Create your own name>
Contract address: 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48
Contract name: <Create your own name>
Start block: (optional but recommended)

Setting up the Subgraph

cd <subgraph-name>

graph codegen

graph build

Deploy the Subgraph to 0xgraph

Return to your API page and copy the information to paste it in the <API key> section below.

graph deploy <graph-name> --node  https://subgraph.api.ormilabs.com/deploy --ipfs https://subgraph.api.ormilabs.com/ipfs --deploy-key <API key>

Track sync status

You can check syncing in the dashboard by going to the Subgraphs tab:

Query your USDC subgraph

Click into the specific Subgraph

Enable the private GraphQL box to query via GraphQL link

Keep in mind that headers need to include your API key and if it doesn’t, you will not be able to make queries

{
  "Authorization": <API key>
}

Example query for most recent transfer events

query LatestTransfers {
  transfers(first: 5, orderBy: blockTimestamp, orderDirection: desc) {
    id
    from
    to
    blockTimestamp
  }
}

Conclusion

You just deployed a USDC subgraph via Ormi’s 0xgraph. From here, you can add the endpoint to your app to reflect real-time activity on USDC transfers.

About Ormi

Ormi is the next-generation data layer for Web3, purpose-built for real-time, high-throughput applications like DeFi, gaming, wallets, and on-chain infrastructure. Its hybrid architecture ensures sub-30ms latency and up to 4,000 RPS for live subgraph indexing, sub-10ms responses across 100+ API schemas, and a powerful SQL engine for historical and AI-ready data.

With 99.9% uptime and deployments across ecosystems representing $50B+ in TVL and $100B+ in annual transaction volume, Ormi is trusted to power the most demanding production environments without throttling or delay.