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@bultcloud/mcp-server

Official Model Context Protocol (MCP) server for Bult.ai, a DevOps platform and cloud hosting Platform-as-a-Service for deploying apps, GitHub repositories, Docker images, databases, and services with AI agents.

Use Bult MCP with Claude Desktop, Claude Code, Cursor, Codex, and other MCP-compatible clients to deploy apps, manage cloud infrastructure, inspect logs, and troubleshoot deployments through the Bult API.

Demo

Features

• Deploy GitHub repositories, Docker images, databases, and app services from MCP-compatible AI agents.
• Project lifecycle tools: list, inspect, create, update, delete, deploy, start, stop, and discard changes.
• Service management for daemon and database services, including Docker image and Git-based deployments.
• Persistent volumes, route/domain mappings, templates, service logs, and build history.
• MCP tool annotations for read-only, idempotent, and destructive operations where supported.
• Works over stdio with Claude Desktop, Claude Code, Cursor, Google Antigravity and other MCP-compatible clients.

When to use Bult MCP

Use Bult MCP when you want an AI coding agent to deploy and operate cloud hosting resources for you. Common workflows include deploying a GitHub repo from Cursor, deploying the current project from Claude Code, launching a Docker image, creating a database service, adding a public route, checking build logs, and debugging failed deployments.

Requirements

• Node.js 18 or newer.
• Bult API token.

Installation

If you install the package globally, use the bult-mcp binary:

npm install -g @bultcloud/mcp-server
bult-mcp

You can also run it with npx from MCP client configs:

npx -y @bultcloud/mcp-server

Configuration

The server reads its configuration from environment variables.

Variable	Required	Description
BULT_API_URL	Yes	Bult API base URL, https://app.bult.ai.
BULT_API_TOKEN	Yes	API token used for Bearer authentication.

The server exits during startup if either variable is missing.

MCP Client Setup

Claude Desktop

Add the server to claude_desktop_config.json.

Using npx:

{
  "mcpServers": {
    "bult": {
      "command": "npx",
      "args": ["-y", "@bultcloud/mcp-server"],
      "env": {
        "BULT_API_URL": "https://app.bult.ai",
        "BULT_API_TOKEN": "your-token"
      }
    }
  }
}

Claude Code

Using npx:

claude mcp add bult \
  -e BULT_API_URL=https://app.bult.ai \
  -e BULT_API_TOKEN=your-token \
  -- npx -y @bultcloud/mcp-server

Codex CLI

Using npx:

codex mcp add \
  --env BULT_API_URL=https://app.bult.ai \
  --env BULT_API_TOKEN=your-token \
  bult \
  -- npx -y @bultcloud/mcp-server

Available Tools

Projects

Tool	Description
list-projects	List all projects in the workspace.
get-project	Get a project overview with services, volumes, and routes.
create-project	Create a new project.
update-project	Update a project name.
delete-project	Delete a project and all of its resources.
deploy-project	Deploy project changes and create a version snapshot.
control-project	Start, stop, or discard project changes.

Services

Tool	Description
list-services	List all services in a project.
get-service	Get service details and configuration.
create-service	Create a daemon or database service.
update-service	Update service configuration.
delete-service	Delete a service.
control-service	Start, stop, or rebuild a service.

Volumes

Tool	Description
create-volume	Create a persistent storage volume.
update-volume	Update a volume name or size.
delete-volume	Delete a volume.
wipe-volume	Irreversibly wipe all data from a volume.

Routes

Tool	Description
create-route	Create a domain or path mapping for a service.
update-route	Update route configuration.
delete-route	Delete a route.

Templates

Tool	Description
list-templates	List available project templates.
apply-template	Apply a template to a project.

Logs and Builds

Tool	Description
get-service-logs	Read service logs with cursor-based pagination.
list-builds	List build history for a service.

Example Prompts

• Deploy this GitHub repo to Bult and give me the public URL.
• Deploy the current project to Bult.
• Check why my deployment failed.
• Show the latest logs for my app.
• Set DATABASE_URL and restart the service.
• Deploy this Docker image to Bult.
• List my Bult projects and services.

Development

npm run dev      # run with tsx, no build step
npm run build    # compile TypeScript to dist/
npm run lint     # type-check without emitting files

Project layout:

src/index.ts          MCP server entrypoint
src/client.ts         Bult API client
src/tools/*.ts        MCP tool registrations by resource type

Security

BULT_API_TOKEN grants access to your Bult resources. Keep it out of source control, shell history, issue reports, and screenshots. Prefer scoped or rotatable tokens when available.

Some tools can create, delete, deploy, stop, or wipe resources. Review tool calls from your MCP client before approving destructive actions.

Privacy Policy

This MCP server connects your MCP client to Bult.ai using the API token you provide. Requests are sent to Bult.ai to perform actions such as listing projects, deploying services, managing routes and volumes, and reading logs.

The server does not store your API token. Tokens are passed through your MCP client configuration or extension settings. For Bult.ai data handling practices, see the Bult.ai Privacy Policy.

Contributing

Issues and pull requests are welcome at github.com/bultcloud/mcp-server.

Before opening a pull request, run:

npm run lint
npm run build

License

This project is licensed under the MIT License.