Engine

Engine is a backend HTTP server that calls smart contracts using your managed backend wallets.

• Create & manage funded backend wallets to send blockchain transactions via authenticated APIs.
• Build scalable blockchain apps with transaction retries, wallet nonce management, and gas estimation.
• Offer the best UX by deploying & transacting with user smart wallets, enabling sign-less flows and gasless transactions.
• Get a complete web3 infrastructure already set up with RPC, IPFS, and account abstraction infrastructure.

• Managed backend wallets - Create company wallets backed up locally or with AWS KMS / Google KMS.
• Any contract on any EVM chain - Engine supports contract calls on all 1000+ EVM blockchains and private subnets.
• High transaction throughput - Blockchain transactions are processed in parallel with nonce management, and stuck transactions are automatically retried.
• Smart contracts - Deploy any published smart contract including tokens, NFTs, marketplaces, and smart accounts.
• Account abstraction & smart wallets - Deploy and manage smart wallets, use session keys for access controls, and transact on behalf of your users.
• Gasless transactions - Sponsor user transactions with gasless relayers and user operations.
• Wallet and contract webhooks - Get notified of wallet and contract events to automate sending emails, printing shipping labels, or charging customers.
• Advanced analytics (coming soon) - View transaction history trends, event logs for each transaction, a ledger of backend wallet funds, and more.

Engine is beneficial if your app:

• Handles multiple company app wallets.
• Requires controlled access by multiple team members.
• Requires transactions to be delivered reliably during traffic bursts and network congestion.
• Sends more than one transaction per block (example: 2 Ethereum transactions within 12 seconds).
• Sponsors gas fees for your users.
• Deploys smart accounts for each user.
• Triggers other actions when wallet or contract events occur.

We're always improving Engine and welcome your feedback in Discord.

For dedicated support and feature requests, contact Sales.