Dev Tools · 1h ago
CircleCI CLI Rewritten in Go, Adds MCP Server for AI Agents
CircleCI rebuilt its CLI from scratch in Go, releasing it as a 1.0 beta with JSON output on every command and a built-in MCP server for Claude, Cursor, and VS Code. The rewrite includes a browser OAuth login, system keyring credentials, a debugging TUI, and a --jq flag for inline JSON queries. The MCP server lets coding agents call CircleCI directly, avoiding the pitfalls of parsing --help output or ANSI codes.
Meridian48 take
The JSON-everywhere promise and MCP integration are pragmatic moves for agent-driven workflows, but the beta label and limited agent host support mean production teams should wait before relying on it.
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CircleCI's CLI is now a Go rewrite with an MCP server bolted on →
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circleci-climcp-server