CCIP Concepts Overview
These pages explain how CCIP 2.0 moves messages and tokens between chains, what affects execution latency and fees, and which limits and responsibilities apply to your application.
Core Concepts
Architecture
How CCIP messages move across chains and how onchain and offchain components interact.
Message Lifecycle
A single cross-chain message followed from send to delivery, across the four phases.
Execution Latency
How confirmation depth and finality affect speed and reorganization risk.
Cross-Chain Token Standard
How token transfers and token pools operate.
Fees & Billing
How message and token transfer fees are calculated.
Service Limits
Constraints on message execution.
Service Responsibility
Operational boundaries and the shared responsibility model.
Manual Execution
How to manually execute CCIP messages when automatic execution is unavailable or undesirable.
Best Practices
Security and operational guidelines for building CCIP applications on EVM chains.
Rate Limits
How token pool rate limits on EVM chains control cross-chain token flow on each lane.
Suggested Paths
- New to CCIP: Start with Architecture.
- Optimizing performance: Review Execution Latency and Fees & Billing.
- Working with tokens: Go to the Cross-Chain Token Standard.
- Production readiness: Review Service Limits, Best Practices, and Service Responsibility.