> ## Documentation Index
> Fetch the complete documentation index at: https://docs.uniblock.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# XMTP Ropsten (XMTP) Overview

XMTP Ropsten (XMTP) RPC

Use Uniblock's JSON-RPC endpoint to access XMTP Ropsten (XMTP) with low-latency routing and a single API surface across providers.

## What is XMTP Ropsten?

XMTP Ropsten is an EVM-compatible testnet. It is a testnet for XMTP. Its ticker symbol is `XMTP`.

## What is the XMTP Ropsten (XMTP) JSON-RPC API?

The JSON-RPC API is the standard interface for reading chain state, sending transactions, and interacting with smart contracts where supported.

## Making API requests

Send a POST request to `https://api.uniblock.dev/uni/v1/json-rpc?chainId=351243127`. Include the JSON-RPC method and params in the request body.

## Supported networks

| Network      | Symbol | Type    | Chain ID    |
| ------------ | ------ | ------- | ----------- |
| XMTP Ropsten | `XMTP` | Testnet | `351243127` |

## API reference

Browse the available method groups for this chain:

* [Debug](/reference/jsonrpc-docs/351243127/debug/debug-db-ancient)
* [EVM](/reference/jsonrpc-docs/351243127/evm/eth-accounts)