---
updatedAt: 2026-05-13T16:14:04.000Z
---

Fetch the complete documentation index at: https://docs.blockdaemon.com/llms.txt. Use this file to discover all available pages before exploring further. Append .md to any documentation page URL to get its markdown version.

# How to Connect to Polygon

## How to Access Polygon Credentials

> 📘 Info
>
> If you haven't configured a node, learn how to deploy one [here](https://docs.blockdaemon.com/docs/how-to-deploy-a-node).

1. Log into the [Blockdaemon app](https://app.blockdaemon.com/).
2. Select **Nodes & RPC** from the sidebar menu
3. Go to the **My Nodes** tab and select the **Polygon** node you want to connect to.
4. Under the **Connect** tab, you’ll find:
   1. Endpoint URL
   2. Auth String
   3. Auth Token

> Please reach out to <support@blockdaemon.com> or your Customer Success Manager for support.

***

## 1. How to Connect via cURL

```curl
curl -X POST -H 'Content-Type: application/json' --data '{"method": "RPC_METHOD", "params": [METHOD_PARAMS], "id": 1}' 'YOUR_ENDPOINT_URL/eth_rpc?auth=YOUR_AUTH_TOKEN'
```

* Replace `RPC_METHOD` with your chosen [RPC method](https://docs.blockdaemon.com/reference/supported-polygon-methods).
* Replace `METHOD_PARAMS` with params of your chosen method.
* Replace `YOUR_ENDPOINT_URL` with the Endpoint URL in the [Blockdaemon app](https://app.blockdaemon.com/signin/register).
* Replace `YOUR_AUTH_TOKEN` with the Auth Token in the [Blockdaemon app](https://app.blockdaemon.com/signin/register).

***

## 2. How to Connect to Tendermint RPC via cURL

```curl
curl -X POST -H 'Content-Type: application/json' --data '{"method": "RPC_METHOD", "params": [METHOD_PARAMS], "id": 1}' 'https://YOUR_ENDPOINT_URL/tendermint_rpc?auth=YOUR_AUTH_TOKEN'
```

* Replace `RPC_METHOD` with your chosen [RPC method](https://docs.blockdaemon.com/reference/supported-tendermint-methods-polygon).
* Replace `METHOD_PARAMS` with params of your chosen method.
* Replace `YOUR_ENDPOINT_URL` with the Endpoint URL in the [Blockdaemon app](https://app.blockdaemon.com/signin/register).
* Replace `YOUR_AUTH_TOKEN` with the Auth Token in the [Blockdaemon app](https://app.blockdaemon.com/signin/register).

***

## 3. How to Connect to Cosmos REST for Polygon

```curl
curl -X GET -H 'Content-Type: application/json' -H "X-Auth-Token: YOUR_AUTH_TOKEN" 'YOUR_ENDPOINT_URL/cosmos_rest/blocks/latest'
```

* Replace `YOUR_AUTH_TOKEN` with the Auth Token in the [Blockdaemon app](https://app.blockdaemon.com/signin/register).
* Replace `YOUR_ENDPOINT_URL` with the Endpoint URL in the [Blockdaemon app](https://app.blockdaemon.com/signin/register).

***

## 4. How to Connect via WebSocket

### Tendermint WebSocket

```
wscat -H "X-Auth-Token: YOUR_AUTH_TOKEN" -c wss://YOUR_ENDPOINT_URL:8443/websocket
```

* Replace `YOUR_AUTH_TOKEN` with the Auth Token in the [Blockdaemon app](https://app.blockdaemon.com/signin/register).
* Replace `YOUR_ENDPOINT_URL` with the Endpoint URL in the [Blockdaemon app](https://app.blockdaemon.com/signin/register).

### Eth WebSocket

This is currently only relevant for archive nodes.

```curl
wscat -H "X-Auth-Token: YOUR_AUTH_TOKEN" -c wss://YOUR_ENDPOINT_URL:8443/eth_websocket
Example: {"id":1,"jsonrpc":"2.0", "method":"eth_getBlockByNumber","params":["latest", true]}
```

* Replace `YOUR_AUTH_TOKEN` with the Auth Token in the [Blockdaemon app](https://app.blockdaemon.com/signin/register).
* Replace `YOUR_ENDPOINT_URL` with the Endpoint URL in the [Blockdaemon app](https://app.blockdaemon.com/signin/register).

> 📘 Info
>
> **wscat** is a tool that can connect over WebSocket(s) and may need to be installed. You can use your preferred tool of choice.

## 👋 Need Help?

Contact us through [email](mailto:support@blockdaemon.com) or our [support page](https://www.blockdaemon.com/support) for any issues, bugs, or assistance you may need.