> **Experimental**
>
> `@aws-cdk/aws-bedrock-agentcore-alpha` is an [**experimental**](/stability) (alpha) package: its API may change in any release, without a major version bump.
# MCPProtocolVersion

MCP protocol versions.

The Model Context Protocol uses string-based version identifiers following the format YYYY-MM-DD,
to indicate the last date backwards incompatible changes were made.
Versions are available at https://github.com/modelcontextprotocol/modelcontextprotocol/releases

- Source: [`lib/gateway/protocol.ts`](https://github.com/aws/aws-cdk/blob/v2.275.0-alpha.0/packages/@aws-cdk/aws-bedrock-agentcore-alpha/lib/gateway/protocol.ts#L64)

## Members

| Member | Description |
| --- | --- |
| `MCP_2025_06_18` | The latest version of the MCP protocol. |
| `MCP_2025_03_26` | MCP version 2025-03-26. |

## Referenced by

- [`McpConfiguration`](/v2/docs/@aws-cdk_aws-bedrock-agentcore-alpha.McpConfiguration).supportedVersions
- [`McpProtocolConfiguration`](/v2/docs/@aws-cdk_aws-bedrock-agentcore-alpha.McpProtocolConfiguration).supportedVersions