ibmz-mcp-server
[](https://opensource.org/licenses/MIT) [](https://modelcontextprotocol.io) [](https://www.npmjs.com/package/ibmz-mcp-server)
MCP server for IBM Z mainframe integration. Provides HSM-backed key management via IBM Key Protect (FIPS 140-2 Level 3) and REST API access to mainframe programs (CICS, IMS, batch) via z/OS Connect.
Tools (12 total)
Key Protect -- HSM Key Management
| Tool | Description |
|---|---|
key_protect_list_keys | List encryption keys in Key Protect |
key_protect_create_key | Create root or standard keys |
key_protect_get_key | Get key details and metadata |
key_protect_wrap_key | Wrap (encrypt) a DEK with a root key |
key_protect_unwrap_key | Unwrap (decrypt) a wrapped DEK |
key_protect_rotate_key | Rotate a root key |
key_protect_delete_key | Delete a key (irreversible) |
key_protect_get_key_policies | Get rotation and dual-auth policies |
z/OS Connect -- Mainframe Integration
| Tool | Description |
|---|---|
zos_connect_list_services | List available mainframe services |
zos_connect_get_service | Get service details and OpenAPI spec |
zos_connect_call_service | Call a mainframe program via REST (JSON to COBOL) |
zos_connect_list_apis | List outbound API configurations |
zos_connect_health | Check z/OS Connect server health |
Install
npm install
Configuration
{
"mcpServers": {
"ibmz": {
"type": "stdio",
"command": "node",
"args": ["/path/to/ibmz-mcp-server/index.js"],
"env": {
"IBM_CLOUD_API_KEY": "your-api-key",
"KEY_PROTECT_INSTANCE_ID": "your-instance-id",
"KEY_PROTECT_URL": "https://us-south.kms.cloud.ibm.com"
}
}
}
}
Environment Variables
| Variable | Description | Required |
|---|---|---|
IBM_CLOUD_API_KEY | IBM Cloud API key | Yes (Key Protect) |
KEY_PROTECT_INSTANCE_ID | Key Protect instance OCID | Yes (Key Protect) |
KEY_PROTECT_URL | Key Protect endpoint | No (defaults to us-south) |
ZOS_CONNECT_URL | z/OS Connect base URL | Yes (z/OS Connect) |
ZOS_CONNECT_USERNAME | Mainframe username | Yes (z/OS Connect) |
ZOS_CONNECT_PASSWORD | Mainframe password | Yes (z/OS Connect) |
Key Concepts
Envelope Encryption
Root keys (KEK) are stored in the HSM and never leave the hardware. Data encryption keys (DEK) are wrapped by root keys for safe storage alongside ciphertext.
z/OS Connect
REST APIs that automatically map JSON payloads to COBOL copybooks, enabling access to CICS transactions, IMS programs, and batch jobs.
Dependencies
@modelcontextprotocol/sdk-- MCP protocol SDK@ibm-cloud/ibm-key-protect-- Key Protect clientibm-cloud-sdk-core-- IBM Cloud authentication