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TeamCity 2026.1 adds CLI and MCP support

2026-06-04 · jetbrains

TeamCity 2026.1 pushes CI/CD closer to agent workflows with a new CLI, MCP support, and pipeline upgrades. JetBrains is also bundling SAML auth and highlighting a security fix for a high-severity on-premises issue.

Key Features or Updates

The release introduces the TeamCity CLI for terminal-based build inspection and remediation, plus MCP support so external AI tools can interact with build logs and related data. JetBrains also expanded Pipelines, added AI Assistant availability to Enterprise trial accounts, and bundled the SAML authentication plugin.

Impact on Developers

This matters because it makes CI failures much easier to route through agent workflows without leaving the terminal or IDE. The MCP angle is especially important for teams that want AI agents to analyze build issues, explain failures, and trigger follow-up actions.

How to use it

Install the CLI, connect it to your TeamCity server, and wire MCP into the AI tooling your team already uses. If you are on TeamCity On-Premises, upgrade to 2026.1 or apply the security patch plugin because JetBrains says all on-premises versions are affected by CVE-2026-44413.

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