Massdriver

Massdriver MCP Server

A Model Context Protocol (MCP) server for Massdriver, providing AI assistants with tools to manage your infrastructure platform — projects, environments, deployments, policies, and more.

Installation

This server is published to the official MCP Registry as `cloud.massdriver/mcp-server` — MCP clients with registry support can discover and install it by that name.

To install manually, pick whichever suits your setup:

Download a release binary — grab the archive for your platform (Linux, macOS, or Windows; amd64 and arm64) from GitHub Releases and put mcp-server on your PATH.

Go install (requires Go 1.25+):

go install github.com/massdriver-cloud/mcp-server@latest

Docker:

docker pull massdrivercloud/mcp-server

Build from source:

git clone https://github.com/massdriver-cloud/mcp-server.git

cd mcp-server make build # outputs ./bin/mcp-server

Configuration

You'll need a Massdriver API key and your organization ID — see the Massdriver docs for creating API credentials.

The server reads configuration from environment variables, or from a profile in ~/.config/massdriver/config.yaml:

export MASSDRIVER_API_KEY="your-api-key"

export MASSDRIVER_ORGANIZATION_ID="your-org-id"

Optional:

export MASSDRIVER_URL="https://api.massdriver.cloud" # set this if you run a self-hosted Massdriver instance export MASSDRIVER_PROFILE="default" # named profile in ~/.config/massdriver/config.yaml

Transports

By default the server speaks MCP over stdio (for local tool integrations like Claude Desktop). To serve the Streamable HTTP transport instead, pass -http (or set MASSDRIVER_MCP_HTTP_ADDR):

./bin/mcp-server -http 127.0.0.1:8080

The HTTP endpoint is stateless and returns application/json, so a single tool call is a plain POST (no session handshake required):

curl -s 127.0.0.1:8080 \

-H 'Content-Type: application/json' \ -H 'Accept: application/json, text/event-stream' \ -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"get_viewer","arguments":{}}}'

The HTTP endpoint is unauthenticated and exposes infrastructure-mutating tools.

Bind it to localhost or place it behind an authenticating proxy.

Docker

The stdio transport needs an interactive stdin, so pass -i:

docker run --rm -i \

-e MASSDRIVER_API_KEY \ -e MASSDRIVER_ORGANIZATION_ID \ massdrivercloud/mcp-server

On a self-hosted Massdriver instance, also pass -e MASSDRIVER_URL.

Using a profile? MASSDRIVER_PROFILE reads credentials from

~/.config/massdriver/config.yaml, which doesn't exist inside the container.

Either pass the credentials as environment variables as shown above, or mount

your config directory and point XDG_CONFIG_HOME at it:

`bash

docker run --rm -i \

-e MASSDRIVER_PROFILE \

-e XDG_CONFIG_HOME=/config \

-v ~/.config/massdriver:/config/massdriver:ro \

massdrivercloud/mcp-server

`

MCP Client Configuration

Claude Code

claude mcp add massdriver \

--env MASSDRIVER_API_KEY=your-api-key \ --env MASSDRIVER_ORGANIZATION_ID=your-org-id \ -- /path/to/mcp-server

Claude Desktop

Add to ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows):

{

"mcpServers": { "massdriver": { "command": "/path/to/mcp-server", "env": { "MASSDRIVER_API_KEY": "your-api-key", "MASSDRIVER_ORGANIZATION_ID": "your-org-id" } } } }

Other Clients

The server uses stdio transport, compatible with any MCP client.

Available Tools (111)

See MCP_README.md for the full tool reference, including per-tool descriptions, input conventions, pagination, and behavioral annotations.

Projects (6)

list_projects get_project create_project clone_project update_project delete_project

Environments (13)

list_environments get_environment create_environment update_environment delete_environment set_environment_default remove_environment_default compare_environments fork_environment deploy_environment decommission_environment list_environment_links list_environment_unfulfilled_dependencies

Instances (10)

list_instances get_instance update_instance set_instance_secret remove_instance_secret set_remote_reference remove_remote_reference copy_instance orphan_instance list_alarms

Deployments (11)

list_deployments get_deployment get_deployment_logs create_deployment propose_deployment approve_deployment reject_deployment abort_deployment plan_deployment rollback_deployment compare_deployments

Components (8)

list_components get_component add_component update_component set_component_position remove_component link_components unlink_components

Bundles (1)

get_bundle

Resources (9)

list_resources get_resource create_resource update_resource delete_resource export_resource create_resource_grant delete_resource_grant list_resource_grants

Resource Types (2)

get_resource_type list_resource_type_dependents

Organization (8)

get_organization create_custom_attribute update_custom_attribute delete_custom_attribute list_organization_members list_custom_attributes get_organization_settings update_organization_settings

Viewer (1)

get_viewer

Audit Logs (3)

get_audit_log list_audit_logs list_audit_log_event_types

Groups (14)

list_groups get_group create_group update_group delete_group add_group_user remove_group_user revoke_group_invitation add_group_service_account remove_group_service_account list_group_members list_group_service_accounts list_group_invitations list_group_policies

Service Accounts (4)

list_service_accounts get_service_account update_service_account delete_service_account

Service account creation is deliberately not exposed — the MCP server can never mint new credentials.

OCI Repos (8)

list_oci_repos get_oci_repo create_oci_repo update_oci_repo delete_oci_repo create_oci_repo_grant delete_oci_repo_grant list_oci_repo_grants

Policies (11)

get_policy create_policy update_policy delete_policy list_policy_actions list_policy_entities evaluate_policy evaluate_policies_batch explain_policy get_policy_attribute_schema list_policy_attribute_values

Server (1)

get_server

URLs (1)

get_url

Contributing

Development, architecture, and release documentation lives in CONTRIBUTING.md.

License

MIT