## How to Access Optimism Credentials

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 **Optimism** 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](mailto:support@blockdaemon.com) or your Customer Success Manager for support.

---

## How to Connect via cURL

Here's how you add your access credentials to a cURL request:

```curl
curl --location --request POST 'YOUR_ENDPOINT_URL' \
--header 'X-Auth-Token: YOUR_AUTH_TOKEN' \
--header 'Content-Type: application/json' \
--data-raw '{ "jsonrpc": "2.0", "method": "RPC_METHOD", "params": METHOD_PARAMS }'
```

- 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).
- Replace `RPC_METHOD` with your chosen [RPC method](https://docs.blockdaemon.com/reference/supported-optimism-methods).
- Replace `METHOD_PARAMS` with the params for your method.

## 👋 Need Help?

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