# Protocol Subgraph

## Overview

Charged Particles utilizes [The Graph](https://thegraph.com/docs/en/about/introduction/) as a data layer on top of its contracts, and currently has multiple subgraphs built on top of the protocol and deployed on The Graph's [hosted service](https://thegraph.com/docs/en/hosted-service/what-is-hosted-service/). Developers who wish to integrate with Charged Particles contracts and have an easier-to-consume data source than the contracts itself should connect to 

### Charged Particles Subgraphs

All of the Subgraphs listed below index data from the four primary Charged Particles contracts, as well as additional "helper" contracts utilized by the four primary contracts. 

### V2 Subgraphs

<table><thead><tr><th width="150">Name</th><th width="282.65859773346983">HTTP Endpoint</th><th width="335.12334774263024">Explorer Link</th></tr></thead><tbody><tr><td>Ethereum Universe (V2)</td><td>To Be Updated</td><td>To Be Updated</td></tr><tr><td>Polygon Universe (V2)</td><td>To Be Updated</td><td>To Be Updated</td></tr><tr><td>Kovan Universe (V2)</td><td><a href="https://thegraph.com/hosted-service/subgraph/charged-particles/kovan-universe-v2">https://thegraph.com/hosted-service/subgraph/charged-particles/kovan-universe-v2</a></td><td><a href="https://thegraph.com/hosted-service/subgraph/charged-particles/kovan-universe-v2">https://thegraph.com/hosted-service/subgraph/charged-particles/kovan-universe-v2</a></td></tr><tr><td>Mumbai Universe (V2)</td><td><a href="https://api.thegraph.com/subgraphs/name/charged-particles/mumbai-universe-v2">https://api.thegraph.com/subgraphs/name/charged-particles/mumbai-universe-v2</a></td><td><a href="https://thegraph.com/hosted-service/subgraph/charged-particles/mumbai-universe-v2">https://thegraph.com/hosted-service/subgraph/charged-particles/mumbai-universe-v2</a></td></tr></tbody></table>

### V1 Subgraphs

<table><thead><tr><th width="150">Name</th><th width="273.65859773346983">HTTP Endpoint</th><th width="335.12334774263024">Explorer Link</th></tr></thead><tbody><tr><td>Ethereum Universe (V1)</td><td><a href="https://api.thegraph.com/subgraphs/name/charged-particles/ethereum-universe">https://api.thegraph.com/subgraphs/name/charged-particles/ethereum-universe</a></td><td><a href="https://thegraph.com/hosted-service/subgraph/charged-particles/ethereum-universe">https://thegraph.com/hosted-service/subgraph/charged-particles/ethereum-universe</a></td></tr><tr><td>Polygon Universe (V1)</td><td><a href="https://api.thegraph.com/subgraphs/name/charged-particles/polygon-universe">https://api.thegraph.com/subgraphs/name/charged-particles/polygon-universe</a></td><td><a href="https://thegraph.com/hosted-service/subgraph/charged-particles/polygon-universe">https://thegraph.com/hosted-service/subgraph/charged-particles/polygon-universe</a></td></tr><tr><td>Kovan Universe (V1)</td><td><a href="https://api.thegraph.com/subgraphs/name/charged-particles/kovan-universe">https://api.thegraph.com/subgraphs/name/charged-particles/kovan-universe</a></td><td><a href="https://thegraph.com/hosted-service/subgraph/charged-particles/kovan-universe">https://thegraph.com/hosted-service/subgraph/charged-particles/kovan-universe</a></td></tr><tr><td>Mumbai Universe (V1)</td><td><a href="https://api.thegraph.com/subgraphs/name/charged-particles/mumbai-universe">https://api.thegraph.com/subgraphs/name/charged-particles/mumbai-universe</a></td><td><a href="https://thegraph.com/hosted-service/subgraph/charged-particles/mumbai-universe">https://thegraph.com/hosted-service/subgraph/charged-particles/mumbai-universe</a></td></tr></tbody></table>