Experiments MCP Server

The Experiments MCP server lets an AI assistant find A/B tests and rollouts and read their configuration and results. All its tools only read data. You can’t create or launch an experiment through MCP today. To do that with an assistant, use the in-app Confidence Agent. See Work with the Confidence Agent. To connect the server, see MCP Servers.

The Confidence MCP servers are experimental. Tools and their parameters can change.

Endpoint and Authentication

Endpoint: https://mcp.confidence.dev/mcp/experiments. Transport: streamable HTTP. Authentication: sign in to Confidence from your AI assistant. The server registers 6 read-only tools for A/B tests and rollouts.

Experiments

Tool	Description	Key parameters
`list_experiments`	Lists A/B tests and rollouts with names, display names, states, owners, and creation times. In list mode, use `filter` and `orderBy`. In search mode, pass `query` for full-text search ordered by relevance. Search mode ignores `filter` and `orderBy`.	`filter`, `orderBy`, `query`, `pageToken`
`get_experiment`	Returns a compact summary of an experiment: name, state, owner, metrics, decision, and analysis result names. Set `summary=false` for configuration, checks, stats, and state history.	`experimentName`, `summary`
`get_results`	Returns statistical results: relative effect estimates, confidence intervals, and status messages per metric. Accepts an instance name, such as `workflows/abtest/instances/{id}`, or an analysis result name. Set `summary=false` for full output.	`analysisResultName`, `summary`

The resource name shows the experiment type, for example workflows/abtest/... or workflows/rollout/....

Resources

Tool	Description	Key parameters
`get_resource`	Returns a resource referenced in experiment data. Supports `metrics/`, `entities/`, `surfaces/`, `segments/`, `factTables/`, `flags/`, `identities/`, `assignmentTables/`, and `clients/*`.	`resourceName`
`list_entities`	Lists entities in the account.	`pageToken`
`list_fact_tables`	Lists fact tables with their entity columns, timestamp columns, measures, and dimensions.	`pageToken`

Get Started

Server Reference

Endpoint and Authentication

Experiments

Resources

​Endpoint and Authentication

​Experiments

​Resources

Endpoint and Authentication

Experiments

Resources