# Changelog

Notable changes to the Agent Wallet API and MCP Skill.

## v2.2.0

* 17 MCP tools across read and trade tiers.
* Multi-chain support: Ethereum, Optimism, BNB Chain, Polygon, Base, Arbitrum.
* Swap and DeFi flows route through the Router contract on Base with sponsored gas.

## Earlier versions

Earlier internal versions are not documented publicly.

## Versioning policy

* Tools and endpoints are added without a version bump.
* Breaking changes (renaming a parameter, changing a return shape, removing a tool) bump the **major** version and ship behind an opt-in flag for at least one minor cycle.


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