Protobi

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This endpoint exposes Protobi projects to Claude as a queryable database via the Model Context Protocol over Streamable HTTP. Claude discovers the survey elements, emits Protobi canonical SQL, and receives weighted distributions back.

## Connect from Claude.ai
Add a custom connector with one of these URLs and authenticate with your Protobi API key in the x-api-key header. The connector can only reach projects your account is authorized to access.

## URL	Use
https://fly.protobi.com/mcp
Account-level: tools take a projectId argument.
https://fly.protobi.com/mcp/project/<projectId>
Pinned to one project (no argument needed).

## Tools
**list_elements**	List every element/dimension: key, title, and value labels. Call this first.
**execute_query**	Run a Protobi SELECT and get weighted distributions with labels.

## Protobi SQL
```sql
SELECT * FROM S1 GROUP BY S2 WHERE S4 <= 2
```
Here, `FROM `is the element to tabulate, `GROUP BY` is the banner, `WHERE` filters respondents.  Protobi element names are case sensitive.

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