Short answer: A docs platform adds MCP and AI search on higher tiers, which is useful for a portal; a studio generates the MCP server from the contract as a core capability, so an external agent can call the API correctly. The first serves the portal; the second serves the agent.
What MCP in a portal does
Exposes tools and search around the documentation, usually on a higher hosted plan. It is a portal feature.
What a generated MCP server does
| Property | Portal MCP | Generated server |
|---|---|---|
| Source | Portal config | The contract |
| Plan gate | Higher tier | Core |
| Agent calls | Portal tools | API operations |
| Provenance | As configured | Visible |
Why the distinction matters
A portal MCP is oriented around the docs; a generated server is oriented around the operations, so an agent performs the real API call correctly.
The decision rule
Use the portal MCP for the documentation experience and the generated server for the agent's API calls. They serve different users.
This is part of the Powerduck vs Redocly comparison. Finish with migrating to the studio.
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