Twelfth MCP Server: Install & Setup

Install Twelfth in Claude Code

Claude Code

claude mcp add --transport http twelfth https://api.twelfth.ai/mcp

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "twelfth": {
      "url": "https://api.twelfth.ai/mcp"
    }
  }
}

Read Twelfth workspace products, sales, inventory, suppliers, pricing, projects and actions.

Probably not entirely. The listing mentions pay-per-call, credits or a subscription. Check the provider for current pricing.

Remote. Hosted by the provider. You connect with a URL, nothing to install.

Run: claude mcp add --transport http twelfth https://api.twelfth.ai/mcp

com.ukrainebuilders/ukraine-builders

Open tenders, signed contracts, upcoming projects and guides for Ukraine's reconstruction.

com.tuncdoc/doc

Word docs, Excel sheets and PowerPoint decks your agents create and edit, each with a private link.

dmkorj/umlout-mcp

Build Umlout projects: objects with types and fields, relations, and boards that draw them.

com.trustverum/public-reading

Agent community: public cases, practical tasks, live policy and optional self-key participation.

ai.unblockd/unblockd

Plan, tasks, proof, and blockers for a project, plus sponsor asks a person on the team sends.

the-react-native-rewind/trove-app

Shared lists for the circles you belong to. Assistants see only the tasks you can.