Mike is an open-source legal AI platform that provides core legal workflow functions — including document review, contract drafting, tabular extraction, and reusable workflow automation — within an infrastructure that law firms can self-host and fully control. The platform is released under the AGPL v3 license and is available for deployment on a firm's own servers or local networks, with a cloud-hosted demo instance also accessible at app.mikeoss.com for evaluation purposes. Users supply their own API keys from third-party LLM providers, with support for Anthropic Claude and Google Gemini models.
Key features and functions include:
AI Legal Assistant
A document-aware chat interface that allows users to query uploaded files, receive grounded citations, and complete drafting and editing tasks within a conversational workflow. The assistant supports multi-step operations and can generate structured documents such as conditions precedent checklists.
Projects (Matter-Scoped Workspaces)
A workspace structure that allows users to organize documents by matter or project type — including credit agreements, SPAs, lease files, and diligence packs — with full context retained across conversations and documents within each project.
Tabular Review
A spreadsheet-style extraction tool that processes multiple documents in parallel, surfacing defined data points from each with citations back to the source page and passage. Designed for high-volume document review tasks.
Reusable Workflows
A workflow library allowing users to save and reuse proven prompts and task sequences — such as CP checklist generation, credit agreement summaries, and change-of-control reviews — as firm-wide templates that can be executed in a single step.
Self-Hosting and Data Control
The platform is architected for self-deployment within a firm's own infrastructure, enabling documents, prompts, and outputs to remain within the firm's environment without passing through third-party vendor servers. When self-hosted, data handling depends entirely on the firm's own configuration, hosting providers, and model API settings.
LLM Provider Flexibility
Mike connects to user-supplied API keys from third-party model providers, currently supporting Anthropic Claude and Google Gemini. Users pay model API costs directly to the provider, with no platform licensing fee.
Open Codebase and Auditability
The full source code is publicly available on GitHub under the AGPL v3 license, allowing firms to inspect prompt engineering, citation parsing, and data flows, and to fork or extend the codebase for practice-specific needs.
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