MCP is great for the stateful systems, where shared context is a benefit, but this is a rarity. Developers generally write clients to use APIs in a stateless way, and we want to help this majority of users.
That said, agents.json is not mutually exclusive to MCP. I can see a future where an MCP for agents.json is created to access any API.
That said, agents.json is not mutually exclusive to MCP. I can see a future where an MCP for agents.json is created to access any API.