Lark CLI
A command-line tool for Lark/Feishu Open Platform — built for humans and AI Agents. Covers core business domains including Messenger, Docs, Base, Sheets, Calendar, Mail, Tasks, Meetings, and more, with 200+ commands and 19 AI Agent Skills.
The Lens
By Erik Loyd, SaaS CEO and former COO/CFO of an AWS Premier Partner.
Updated May 2026
This official CLI covers everything. Messenger, Docs, Base, Sheets, Calendar, Mail, Tasks, Meetings, and more across 200+ commands with 19 pre-built AI Agent skills.
The setup is fast: 3 steps from install to first API call, with one-click app creation and interactive login. Built in Go, MIT licensed. Every command has been tested with real AI agents, so the output formats and error handling are designed for machine consumption, not just human use. This is official from Lark Technologies, not a community wrapper.
The catch: this is only useful if you're in the Lark/Feishu ecosystem. If your team uses Slack and Google Workspace, there's nothing here for you. And 'AI Agent acts under your identity' means the agent has your permissions. A hallucinating agent could send messages or modify documents as you. The security model requires careful scoping.
Free vs Self-Hosted vs Paid
fully freeCLI is fully open source under MIT. Lark itself has free and paid tiers; the CLI works with any Lark account. The 200+ commands cover both free and paid Lark features. No separate CLI pricing.
Free CLI. Lark account required. Lark has its own pricing tiers.
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Trust Signals
License: MIT License
Use freely, including commercial. Just keep the license.
Commercial use: ✓ Yes
About
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- Lark Technologies Pte. Ltd. (Organization)
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Also by Lark Technologies Pte. Ltd.
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