How to Connect to Polygon

Learn how to connect to the Polygon infrastructure via RPC with Blockdaemon.

In this guide, you'll learn the following simple methods of connection to your infrastructure:

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Note:

Visit the Polygon marketplace page to explore Blockdaemon’s Polygon infrastructure.


How to Access Your Blockdaemon Polygon Credentials

Once you have purchased your Blockdaemon Polygon infrastructure, you can access your credentials:

  1. Log into the Blockdaemon app.
  2. Click Nodes under the Access menu.
  3. Select the Polygon node.
  4. Select the Connect tab. You'll find the following information:
    1. Endpoint URL
    2. Auth String
    3. Auth Token

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Info:

Please reach out to [email protected] or your Customer Success Manager for support.


How to Connect to Polygon ETH RPC via 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.
  • Replace METHOD_PARAMS with params of your chosen method.
  • Replace YOUR_ENDPOINT_URL with the Endpoint URL in the Blockdaemon app.
  • Replace YOUR_AUTH_TOKEN with the Auth Token in the Blockdaemon app.

How to Connect to Polygon Tendermint RPC via 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.
  • Replace METHOD_PARAMS with params of your chosen method.
  • Replace YOUR_ENDPOINT_URL with the Endpoint URL in the Blockdaemon app.
  • Replace YOUR_AUTH_TOKEN with the Auth Token in the Blockdaemon app.

How to Connect to Cosmos REST for Polygon

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

How to Connect to Polygon via WebSocket

Tendermint WebSocket

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

Eth WebSocket

This is currently only relevant for archive nodes.

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]}

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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 or our support page for any issues, bugs, or assistance you may need.