Update rpc-providers.mdx

Added Blockdaemon to the RPC & Node providers list.

Author: kwijayabd

pages/builders/tools/connect/rpc-providers.mdx

@@ -38,6 +38,18 @@ Moreover, Ankr offers access to developer tooling on OP Mainnet (and testnets) l
 *   OP Mainnet
 *   OP Sepolia
 
+## Blockdaemon
+
+### Description and pricing
+
+Blockdaemon provides institutional-grade blockchain infrastructure, including node, staking, and API solutions, with premium RPC services optimized for [Optimism](https://docs.blockdaemon.com/reference/how-to-access-optimism-api). With free and enhanced options, Blockdaemon’s RPC API allows developers to securely interact with on-chain data, broadcast transactions, and build dApps with minimal setup, offering streamlined access to enriched blockchain data and 99.9% uptime reliability to meet diverse needs.
+
+[Sign up for a free Blockdaemon account here](https://app.blockdaemon.com/signin/register)
+
+### Supported networks
+
+*   OP Mainnet
+
 ## Chainstack
 
 ### Description and pricing