# Chainlink Local v0.2.3 API Reference
Source: https://docs.chain.link/chainlink-local/api-reference/v0.2.3


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## CCIP

These contracts provide Cross-Chain Interoperability Protocol (CCIP) functionality in a local testing environment:

- [CCIPLocalSimulator](/chainlink-local/api-reference/v0.2.3/ccip-local-simulator) - Local CCIP message routing simulator
- [CCIPLocalSimulatorFork](/chainlink-local/api-reference/v0.2.3/ccip-local-simulator-fork) - CCIP simulator for forked networks
- [CCIPLocalSimulatorFork JS](/chainlink-local/api-reference/v0.2.3/ccip-local-simulator-fork-js) - JavaScript utilities for CCIP simulation
- [Register](/chainlink-local/api-reference/v0.2.3/register) - CCIP network configuration registry

## Data Feeds

Contracts for simulating Chainlink Data Feeds:

- [AggregatorInterface](/chainlink-local/api-reference/v0.2.3/aggregator-interface) - Basic price feed interface
- [AggregatorV2V3Interface](/chainlink-local/api-reference/v0.2.3/aggregator-v2-v3-interface) - Combined V2/V3 price feed interface
- [AggregatorV3Interface](/chainlink-local/api-reference/v0.2.3/aggregator-v3-interface) - Extended price feed interface
- [MockOffchainAggregator](/chainlink-local/api-reference/v0.2.3/mock-offchain-aggregator) - Mock implementation of off-chain aggregator
- [MockV3Aggregator](/chainlink-local/api-reference/v0.2.3/mock-v3-aggregator) - Mock implementation of V3 aggregator

## Token Contracts

Standard token implementations for testing:

- [BurnMintERC677Helper](/chainlink-local/api-reference/v0.2.3/burn-mint-erc677-helper) - Helper contract for ERC677 token operations
- [LinkToken](/chainlink-local/api-reference/v0.2.3/link-token) - LINK token implementation
- [WETH9](/chainlink-local/api-reference/v0.2.3/weth9) - Wrapped Ether implementation