# Introduction

This guide will serve as a way to integrate your current front end with our contracts. 

These assumptions apply to all sections in this guide

* You are using a react based app (either next.js/vite/create react app) 
* You are using [wagmi](https://wagmi.sh/) to interact with the EVM
* You have added our NPM package containing the contracts [over here](https://www.npmjs.com/package/@teller-protocol/v2-contracts)
* You have an API key to use our subgraph. You can follow the guide [here](https://docs.teller.org/teller-widget/generating-subgraph-studio-api-key) to create your API key.

## Subgraph endpoints

These are the subgraph endpoint urls on each network: 

* Mainnet: <https://gateway-arbitrum.network.thegraph.com/api/{api-key}/subgraphs/id/B6FW3z7yLTJKVuqz6kLDJAwJru1T89j4ww5JfY3GYX8F>
* Polygon: <https://gateway-arbitrum.network.thegraph.com/api/{api-key}/subgraphs/id/8bjHtQZ9PZUMQAbCGJw5Zx2SbZZY2LQz8WH3rURzN5do>
* Base: <https://gateway-arbitrum.network.thegraph.com/api/{api-key}/subgraphs/id/ArZjkaosc5rmBoYqprFWomvnjKSFMGkPFD7yuaZGuqQo>
* Arbitrum: <https://api.studio.thegraph.com/query/51204/tellerv2-arbitrum/v0.4.21-16>

## Contract addresses

### TellerV2&#x20;

| Mainnet  | 0x00182FdB0B880eE24D428e3Cc39383717677C37e |
| -------- | ------------------------------------------ |
| Base     | 0x5cfD3aeD08a444Be32839bD911Ebecd688861164 |
| Arbitrum | 0x5cfD3aeD08a444Be32839bD911Ebecd688861164 |

### LenderCommitmentForwarderAlpha

| Mainnet  | 0x0D1047229B9851eACE463Fb25f27982a5127c20F |
| -------- | ------------------------------------------ |
| Base     | 0xfA87381128aAF95fB637BbA0B760bA2f9970c2b5 |
| Arbitrum | 0x6455F2E1CCb14bd0b675A309276FB5333Dec524f |

### Rollover

| Mainnet  | 0xf236d5Cc4d45eA0eF223Bfdf9583e655f51C12fB |
| -------- | ------------------------------------------ |
| Base     | 0x7bFE23e80F9DfFBbb3E1FB613eB4F5a617073fa5 |
| Arbitrum | 0xef20ec912F7183B3ddA18F3Ad990E06f0b5dC670 |


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.teller.org/teller-lite/dev-guide/introduction.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.