> ## 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.

# Polygon (MATIC) Overview

Polygon (MATIC) RPC

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

## What is Polygon?

Polygon is an EVM-compatible mainnet. Its ticker symbol is `MATIC`.

## What is the Polygon (MATIC) 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=137`. Include the JSON-RPC method and params in the request body.

## Supported networks

| Network      | Symbol  | Type    | Chain ID |
| ------------ | ------- | ------- | -------- |
| Polygon      | `MATIC` | Mainnet | `137`    |
| Polygon Amoy | `MATIC` | Testnet | `80002`  |

## API reference

Browse the available method groups for this chain:

* [Bor](/reference/jsonrpc-docs/137/bor/bor-get-author)
* [Debug](/reference/jsonrpc-docs/137/debug/debug-account-range)
* [Erigon](/reference/jsonrpc-docs/137/erigon/erigon-block-number)
* [EVM](/reference/jsonrpc-docs/137/evm/eth-accounts)
* [Otterscan](/reference/jsonrpc-docs/137/otterscan/ots-get-api-level)
* [Trace](/reference/jsonrpc-docs/137/trace/trace-block)