Abnormal MCP Server

An open-source MCP server for Abnormal Security that allows agents to query threats, search messages, remediate issues, manage ATO cases, and download evidence via stdio or HTTP. It acts as a client against the Abnormal Security REST API, supporting read-only operations by default with opt-in response and evidence download capabilities.

Package and access

Local package with source-attributed installation metadata. Koskamo does not execute packages during review.

Community listingLocal stdioSource reviewed; not executedPublished by GregDog

You need:Create an Abnormal REST API token in the Abnormal portal under Integrations → Abnormal REST API.

Vendor documentation

What you can do with it

Query threat logs and search messages with ergonomic filters
Remediate threats or move messages to inbox
Manage ATO case status and analysis
Download message EMLs and attachment evidence

Source and maintenance

Community listingRegistry 1.1.0

mcp-registry: io.github.GregDog/mcp-server-abnormal@1.1.0 Source repository Project website

Maintenance checked: Oct 31, 2026, 10:27 PM UTC

Packages and installation

Source-provided package data. Koskamo has not executed or live-probed this package.

ghcr.io/gregdog/mcp-server-abnormal:v1.1.0

oci

ghcr.io/gregdog/mcp-server-abnormal:v1.1.0 package definition

{
  "transport": "stdio",
  "identifier": "ghcr.io/gregdog/mcp-server-abnormal:v1.1.0",
  "registryType": "oci",
  "packageArguments": [
    {
      "type": "positional",
      "value": "serve"
    }
  ],
  "environmentVariables": [
    {
      "name": "ABNORMAL_API_TOKEN",
      "isRequired": true,
      "description": "Abnormal REST API bearer token"
    },
    {
      "name": "ABNORMAL_BASE_URL",
      "default": "https://api.abnormalplatform.com/v1",
      "description": "Abnormal API base URL"
    },
    {
      "name": "ABNORMAL_ALLOW_RESPONSE",
      "default": "false",
      "description": "Enable response MCP tools (remediation)"
    },
    {
      "name": "ABNORMAL_ALLOW_EVIDENCE_DOWNLOAD",
      "default": "false",
      "description": "Enable evidence download MCP tools (EML and attachments)"
    },
    {
      "name": "ABNORMAL_MAX_EVIDENCE_BYTES",
      "default": "10485760",
      "description": "Max bytes per evidence download from Abnormal"
    }
  ]
}

Tools

Reported by the attributed source; not independently observed by Koskamo.

No tool definitions available.

Connect from your client

Each snippet configures the same source-provided package; replace placeholders before use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Cursor

Merge this local stdio configuration, replace every placeholder environment value, and restart Cursor. Koskamo has not executed this package.

Cursor configuration

{
  "mcpServers": {
    "abnormal-mcp-server": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "-e",
        "ABNORMAL_API_TOKEN=<YOUR_ABNORMAL_API_TOKEN>",
        "-e",
        "ABNORMAL_BASE_URL=<YOUR_ABNORMAL_BASE_URL>",
        "-e",
        "ABNORMAL_ALLOW_RESPONSE=<YOUR_ABNORMAL_ALLOW_RESPONSE>",
        "-e",
        "ABNORMAL_ALLOW_EVIDENCE_DOWNLOAD=<YOUR_ABNORMAL_ALLOW_EVIDENCE_DOWNLOAD>",
        "-e",
        "ABNORMAL_MAX_EVIDENCE_BYTES=<YOUR_ABNORMAL_MAX_EVIDENCE_BYTES>",
        "ghcr.io/gregdog/mcp-server-abnormal:v1.1.0",
        "serve"
      ],
      "env": {
        "ABNORMAL_API_TOKEN": "<YOUR_ABNORMAL_API_TOKEN>",
        "ABNORMAL_BASE_URL": "<YOUR_ABNORMAL_BASE_URL>",
        "ABNORMAL_ALLOW_RESPONSE": "<YOUR_ABNORMAL_ALLOW_RESPONSE>",
        "ABNORMAL_ALLOW_EVIDENCE_DOWNLOAD": "<YOUR_ABNORMAL_ALLOW_EVIDENCE_DOWNLOAD>",
        "ABNORMAL_MAX_EVIDENCE_BYTES": "<YOUR_ABNORMAL_MAX_EVIDENCE_BYTES>"
      }
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.

Cline configuration

{
  "mcpServers": {
    "abnormal-mcp-server": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "-e",
        "ABNORMAL_API_TOKEN=<YOUR_ABNORMAL_API_TOKEN>",
        "-e",
        "ABNORMAL_BASE_URL=<YOUR_ABNORMAL_BASE_URL>",
        "-e",
        "ABNORMAL_ALLOW_RESPONSE=<YOUR_ABNORMAL_ALLOW_RESPONSE>",
        "-e",
        "ABNORMAL_ALLOW_EVIDENCE_DOWNLOAD=<YOUR_ABNORMAL_ALLOW_EVIDENCE_DOWNLOAD>",
        "-e",
        "ABNORMAL_MAX_EVIDENCE_BYTES=<YOUR_ABNORMAL_MAX_EVIDENCE_BYTES>",
        "ghcr.io/gregdog/mcp-server-abnormal:v1.1.0",
        "serve"
      ],
      "env": {
        "ABNORMAL_API_TOKEN": "<YOUR_ABNORMAL_API_TOKEN>",
        "ABNORMAL_BASE_URL": "<YOUR_ABNORMAL_BASE_URL>",
        "ABNORMAL_ALLOW_RESPONSE": "<YOUR_ABNORMAL_ALLOW_RESPONSE>",
        "ABNORMAL_ALLOW_EVIDENCE_DOWNLOAD": "<YOUR_ABNORMAL_ALLOW_EVIDENCE_DOWNLOAD>",
        "ABNORMAL_MAX_EVIDENCE_BYTES": "<YOUR_ABNORMAL_MAX_EVIDENCE_BYTES>"
      }
    }
  }
}

VS Code

Merge this local stdio configuration, replace every placeholder environment value, and restart VS Code. Koskamo has not executed this package.

VS Code configuration

{
  "servers": {
    "abnormal-mcp-server": {
      "type": "stdio",
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "-e",
        "ABNORMAL_API_TOKEN=<YOUR_ABNORMAL_API_TOKEN>",
        "-e",
        "ABNORMAL_BASE_URL=<YOUR_ABNORMAL_BASE_URL>",
        "-e",
        "ABNORMAL_ALLOW_RESPONSE=<YOUR_ABNORMAL_ALLOW_RESPONSE>",
        "-e",
        "ABNORMAL_ALLOW_EVIDENCE_DOWNLOAD=<YOUR_ABNORMAL_ALLOW_EVIDENCE_DOWNLOAD>",
        "-e",
        "ABNORMAL_MAX_EVIDENCE_BYTES=<YOUR_ABNORMAL_MAX_EVIDENCE_BYTES>",
        "ghcr.io/gregdog/mcp-server-abnormal:v1.1.0",
        "serve"
      ],
      "env": {
        "ABNORMAL_API_TOKEN": "<YOUR_ABNORMAL_API_TOKEN>",
        "ABNORMAL_BASE_URL": "<YOUR_ABNORMAL_BASE_URL>",
        "ABNORMAL_ALLOW_RESPONSE": "<YOUR_ABNORMAL_ALLOW_RESPONSE>",
        "ABNORMAL_ALLOW_EVIDENCE_DOWNLOAD": "<YOUR_ABNORMAL_ALLOW_EVIDENCE_DOWNLOAD>",
        "ABNORMAL_MAX_EVIDENCE_BYTES": "<YOUR_ABNORMAL_MAX_EVIDENCE_BYTES>"
      }
    }
  }
}

Claude Desktop

Merge this local stdio configuration, replace every placeholder environment value, and restart Claude Desktop. Koskamo has not executed this package.

Claude Desktop configuration

{
  "mcpServers": {
    "abnormal-mcp-server": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "-e",
        "ABNORMAL_API_TOKEN=<YOUR_ABNORMAL_API_TOKEN>",
        "-e",
        "ABNORMAL_BASE_URL=<YOUR_ABNORMAL_BASE_URL>",
        "-e",
        "ABNORMAL_ALLOW_RESPONSE=<YOUR_ABNORMAL_ALLOW_RESPONSE>",
        "-e",
        "ABNORMAL_ALLOW_EVIDENCE_DOWNLOAD=<YOUR_ABNORMAL_ALLOW_EVIDENCE_DOWNLOAD>",
        "-e",
        "ABNORMAL_MAX_EVIDENCE_BYTES=<YOUR_ABNORMAL_MAX_EVIDENCE_BYTES>",
        "ghcr.io/gregdog/mcp-server-abnormal:v1.1.0",
        "serve"
      ],
      "env": {
        "ABNORMAL_API_TOKEN": "<YOUR_ABNORMAL_API_TOKEN>",
        "ABNORMAL_BASE_URL": "<YOUR_ABNORMAL_BASE_URL>",
        "ABNORMAL_ALLOW_RESPONSE": "<YOUR_ABNORMAL_ALLOW_RESPONSE>",
        "ABNORMAL_ALLOW_EVIDENCE_DOWNLOAD": "<YOUR_ABNORMAL_ALLOW_EVIDENCE_DOWNLOAD>",
        "ABNORMAL_MAX_EVIDENCE_BYTES": "<YOUR_ABNORMAL_MAX_EVIDENCE_BYTES>"
      }
    }
  }
}

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