The Smart Contract Portal is a middleware which creates an easy to use api on top of your smart contracts. It can be used with all EVM-compatible chains like Ethereum, Hyperledger Besu, Polygon, Binance Smart Chain, Avalanche, etc. You can run it on your own blockchain nodes (both public and permissioned) or on a Load Balancer.

Benefits of using the smart contract portal:

1. Simplified Integration: APIs allow developers to interact with complex smart contract functions through familiar interfaces, reducing the need to understand blockchain-specific languages and protocols.

2. Data Aggregation: APIs can consolidate data from multiple smart contracts, providing a unified view.

3. Improved Performance: GraphQL optimizes data fetching, ensuring that clients retrieve only the necessary data in a single request, reducing network load and improving performance.

4. Stack agnostic: Teams are free to choose their own technology stack.

More information on https://console.settlemint.com/documentation/docs/using-platform/middleware/#the-smart-contract-portal-middleware