Your workspace, in any AI client.
VectorOS publishes a Model Context Protocol server at https://os.site.vector.inc/mcp, over Streamable HTTP. Point Claude, ChatGPT, Codex or any MCP client at it and sign in as yourself, with the access you already have. Sign-in is OAuth 2.1 with PKCE, discovered from the endpoint itself. Access requires an existing VectorOS account, and no API keys, tokens or client secrets are issued. Claude Code: run claude mcp add --transport http vector https://os.site.vector.inc/mcp, then approve the sign-in when your browser opens. Claude and Claude Desktop: Customize, then Connectors, then Add custom connector; paste the endpoint and leave client ID and secret blank. ChatGPT and Codex: run codex mcp add vector --url https://os.site.vector.inc/mcp and complete the sign-in; in ChatGPT, add the same endpoint as a connector. Any other MCP client needs Streamable HTTP, OAuth discovery and PKCE, and no client ID or secret. To check the connection, ask the client to run whoami. The tools cover the data room (browse_dataroom, search_dataroom, read_document, download_document, upload_to_dataroom), tasks (browse_tasks, browse_legal_services, get_task, create_task), templates (browse_templates, download_template), e-signature (browse_esign_envelopes, get_esign_submission, create_esign_envelope), saved artifacts (browse_artifacts, download_artifact, save_artifact), a curated knowledge base of statutory and regulatory sources (search_knowledge_base, inspect_knowledge_source), public USPTO patent records (patent_search, patent_get, patent_status, patent_similar, patent_continuity, patent_assignments) and your account (whoami). Each tool declares whether it only reads, creates something new, or replaces what was there, so a client knows when to ask first: upload_to_dataroom, create_task and create_esign_envelope create, save_artifact replaces, and every other tool only reads. Your role and plan may narrow the list, and company access and plan are rechecked on every call. Outlook, Slack, open-web research, OCR and two-document redlining run only inside Vector Intelligence and are never exposed to a connected client.
Who publishes VectorOS, and who practices law
Vector Systems, PBC publishes and builds the VectorOS software platform. Vector Legal, P.C. is the licensed California law firm that provides legal services where engaged. Legal-service deliverables from the firm are reviewed by licensed attorneys. VectorOS is software: it is not a law firm, and its drafts and findings are not legal advice on their own.
What VectorOS includes
Vector Intelligence answers from the matters, documents and company records the person asking is permitted to see, and names the source records it read. The Smart Data Room holds records, templates and playbooks, reads connected Google Drive, OneDrive, Box and Dropbox folders where they live, and has rooms that can be shared. The Corporate Record reads ownership, rights and history from the company's own documents. Legal Health Checks run on demand across corporate, equity and commercial records. AI Redlining reviews third-party paper against a company's own playbook and exports track changes to Word. Lawyer in the Loop puts senior counsel on the matters that need judgment.
Open source
Vector publishes blackline, an Office Open XML toolkit for DOCX, XLSX and PPTX. It is MIT licensed and written in Rust, and it edits the XML inside an Office package directly, so a revision comes back as Word-native tracked changes rather than a converted copy. VectorOS itself is not open source.
Contact
To get started in the product, the entry point is os.vector.inc. To talk to someone first, use vectorlegal.com/contact or email [email protected]. An MCP client can connect through the server documented at https://vector.inc/mcp. Access requires a VectorOS account and sign-in, and no API keys are issued.