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Biconomy provides the infrastructure to build Web3 applications with Web2-level user experience. Execute complex multi-chain workflows with a single signature, abstract away gas entirely, and enable automation through delegated permissions.

70M+

Transactions processed

4.5M+

Smart accounts deployed

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Core Components

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Nexus Smart Account

Nexus is Biconomy’s ERC-7579 compliant smart account—the most gas-efficient on the market with 25% lower costs than alternatives.

Gasless Transactions

Users pay fees in USDC, USDT, or any ERC-20 token—or you sponsor gas entirely

Composable Batching

Chain multiple operations where each step uses outputs from the previous one

Modular Architecture

Install modules for recovery, spending limits, session keys, and custom logic

Cross-Chain Ready

Unified addresses across all supported EVM networks

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Orchestration

The Biconomy stack enables advanced onchain orchestration capabilities. These include:
  • Executing multiple composable transactions in an atomic batch (Composable Batching)
  • Executing multiple function calls across multiple chains with a single user signature (Cross-Chain Orchestration)
  • Scheduling transactions or creating repeat transactions.
  • Setting up “Conditional Execution” - triggering transactions based on some on-chain condition (e.g. price oracles)
The orchestration capabilities are enabled by the Biconomy Modular Execution Environment (MEE). MEE is the execution layer that goes beyond ERC-4337. While ERC-4337 introduced account abstraction, MEE enables true cross-chain composability.
CapabilityERC-4337MEE
Batch transactions✅✅
Dynamic composable execution❌✅
Cross-chain orchestration❌✅
Pay gas from any chain❌✅
EOA wallet support❌✅
With MEE, your users sign once to execute operations across multiple chains. Bridge timing, gas management, and execution ordering are handled automatically.

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Choose Your Integration Path

Biconomy offers two ways to integrate, depending on your needs:
Best for: Rapid development, DeFi integrations, teams without blockchain expertise
  • REST API works with any language or framework
  • Pre-built integrations for hundreds of DeFi protocols
  • Automatic bridge and swap route optimization
  • No smart contract deployment or encoding required
# Quote → Sign → Execute
curl -X POST https://api.biconomy.io/v1/quote \
  -d '{"composeFlows": [...]}'
Not sure which to choose? See the detailed comparison.

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Smart Sessions for Automation

Smart Sessions enable delegated execution—perfect for AI agents, bots, and automated strategies. Users grant scoped permissions to other signers with precise constraints.
1

Define Permissions

Specify which contracts, functions, and token limits the agent can access
2

User Approves (Single Signature)

User signs once to grant the session—fully gasless
3

Agent Executes

Agent operates within boundaries without requiring additional user signatures
Example: An AI agent that rebalances funds across DeFi protocols:
  • Limited to AAVE, Morpho, and Yearn contracts
  • Can only move USDC
  • Maximum spend of 10,000 USDC
  • Works across Optimism, Base, and Ethereum
Smart Sessions work with both Smart Accounts and EOAs (via EIP-7702 or Fusion Execution).

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Next Steps

Swaps & Trading

Build cross-chain swap experiences

Zaps

One-click DeFi workflows

Agents & Automation

Delegated execution for bots and AI

Gasless Apps

Sponsor transactions for your users