Update dev-gas.mdx

pages/dev-gas.mdx

@@ -15,6 +15,17 @@ The maximum amount of gas the user wants the transaction to use. If the gas limi
 ### Fee
 `Fee = Gas Price * Gas Limit`.
 
+To help developers and users estimate fees on Sei, please reference [Sei Gas](seigas.com) and the associated [APIs](https://docs.blocknative.com/gas-prediction/gas-platform) provided by Blocknative. Their estimates are based on real-time SEI data and advanced ML modeling to accurately and consistently estimate SEI transaction fees.
+
+**Using Blocknative's Gas API**
+
+To leverage Blocknative's you will need an [API Key](https://docs.blocknative.com/gas-prediction/gas-platform#authentication). Once you have an API key, you can request fee estimation for SEI: 
+
+```
+curl -H "Authorization: your-apikey-here" https://api.blocknative.com/gasprices/blockprices?chainid=1329
+```
+
+
 ### Maximum Gas
 
 The maximum gas limit for a transaction ensures that complex transactions do not consume excessive resources. You can find the maximum gas limits for each chain in the [Sei chain registry](https://github.com/sei-protocol/chain-registry/blob/main/gas.json) or by querying the `/consensus_params` of the RPC node itself (ex. https://rpc.pacific-1.sei.io/consensus_params).