MCP seems to be about giving you access to your own data. Your Slack conversations, your Jira tickets, your calendar appointments. Those wouldn't go into AI training datasets anyway, locked down APIs or not.
The APIs of old were about giving you programmatic access to publicly available information. Public tweets, public Reddit posts, that sort of thing. That's the kind of data AI companies want for training, and you aren't getting it through MCP.
Interesting perspective because MCPs are safer when they give you access to your own content from trusted providers or local apps on your computer than when they give you access to public data which may have prompt injection booby traps.
The APIs of old were about giving you programmatic access to publicly available information. Public tweets, public Reddit posts, that sort of thing. That's the kind of data AI companies want for training, and you aren't getting it through MCP.