{"version":"2.1.63","anchor":"claude-ai-mcp-servers-enabled-by-default","canonical_anchor":"claude-ai-mcp-servers-enabled-by-default","heading":"claude.ai MCP Servers Enabled by Default","tier":null,"area":null,"scope":null,"heads_up":null,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.63\/e\/claude-ai-mcp-servers-enabled-by-default","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.63","markdown":"### claude.ai MCP Servers Enabled by Default\n\nThe claude.ai MCP server integration has changed from opt-in to enabled by default (still GrowthBook-gated for rollout). Users who previously had to set `ENABLE_CLAUDEAI_MCP_SERVERS=true` no longer need to. To opt out, set `ENABLE_CLAUDEAI_MCP_SERVERS=false`.\n\n**Evidence**\n\nChanged message from `\"require ENABLE_CLAUDEAI_MCP_SERVERS=true\"` (v2.1.62) to `\"enabled by default (GrowthBook-gated). To opt out, set ENABLE_CLAUDEAI_MCP_SERVERS=false\"` (v2.1.63)"}