# Add Case Comment — Elastic Security

> Add a user comment to an Elastic Security case via POST /api/cases/{caseId}/comments. Use this to log investigation notes or updates on a case without changing its status or fields — use Create or Update Case for that. Run Find Cases first…

- Key: `elastic_security-add-case-comment`
- Type: Action (Write)
- Version: 0.0.1
- App: Elastic Security (`elastic_security`) — https://pipedream.com/apps/elastic-security.md
- This page (HTML): https://pipedream.com/apps/elastic-security/actions/add-case-comment
- Hints: open-world
- Source: https://github.com/PipedreamHQ/pipedream/blob/master/components/elastic_security/actions/add-case-comment/add-case-comment.mjs

## Description

Add a user comment to an Elastic Security case via POST /api/cases/{caseId}/comments. Use this to log investigation notes or updates on a case without changing its status or fields — use **Create or Update Case** for that. Run **Find Cases** first to obtain a valid case ID. Example: calling with `caseId: "a1c1..."` and `comment: "Confirmed unauthorized access via badge logs."` returns the updated case object with `totalComment` incremented and the new comment in `comments`. [See the documentation](https://www.elastic.co/docs/api/doc/kibana/operation/operation-addcasecommentdefaultspace)

## Props

| Prop | Type | Required | Description |
|---|---|---|---|
| `caseId` | `string` | Yes | The ID of the case to comment on. Run Find Cases first to obtain valid case IDs. |
| `comment` | `string` | Yes | The text of the user comment to add. |

## Run it

**MCP**

```ts
import { Client } from "@modelcontextprotocol/sdk/client/index.js"
import { StreamableHTTPClientTransport } from "@modelcontextprotocol/sdk/client/streamableHttp.js"
import { PipedreamClient } from "@pipedream/sdk"

const pd = new PipedreamClient({
  projectId: process.env.PIPEDREAM_PROJECT_ID!,
  clientId: process.env.PIPEDREAM_CLIENT_ID!,
  clientSecret: process.env.PIPEDREAM_CLIENT_SECRET!,
  projectEnvironment: "production",
})

const accessToken = await pd.rawAccessToken

const transport = new StreamableHTTPClientTransport(
  new URL("https://remote.mcp.pipedream.net/v3"),
  {
    requestInit: {
      headers: {
        Authorization: `Bearer ${accessToken}`,
        "x-pd-project-id": process.env.PIPEDREAM_PROJECT_ID!,
        "x-pd-environment": "production",
        "x-pd-external-user-id": "{external_user_id}", // any stable ID for this user in your system
        "x-pd-app-slug": "elastic_security",
      },
    },
  },
)

const mcp = new Client({ name: "my-agent", version: "1.0.0" })
await mcp.connect(transport)

const { tools } = await mcp.listTools()

// listTools() hands your model this tool's input schema, so it can
// fill the arguments itself:
const result = await mcp.callTool({
  name: "elastic_security-add-case-comment",
  arguments: {
    caseId: "Case ID",
    comment: "Comment",
  },
})
```

**TypeScript**

```ts
import { PipedreamClient } from "@pipedream/sdk"

const pd = new PipedreamClient({
  projectId: process.env.PIPEDREAM_PROJECT_ID!,
  clientId: process.env.PIPEDREAM_CLIENT_ID!,
  clientSecret: process.env.PIPEDREAM_CLIENT_SECRET!,
  projectEnvironment: "production",
})

const result = await pd.actions.run({
  id: "elastic_security-add-case-comment",
  externalUserId: "{external_user_id}", // any stable ID for this user in your system
  configuredProps: {
    elastic_security: { authProvisionId: "apn_xxxxxxx" },
    caseId: "Case ID",
    comment: "Comment",
  },
})

console.log(result)
```

**cURL**

```bash
curl -X POST https://api.pipedream.com/v1/connect/{project_id}/actions/run \
  -H "Content-Type: application/json" \
  -H "X-PD-Environment: production" \
  -H "Authorization: Bearer {access_token}" \
  -d '{
    "external_user_id": "{external_user_id}",
    "id": "elastic_security-add-case-comment",
    "configured_props": {
      "elastic_security": { "authProvisionId": "apn_xxxxxxx" },
      "caseId": "Case ID",
      "comment": "Comment"
    }
  }'
```

---

- App: https://pipedream.com/apps/elastic-security.md · All apps: https://pipedream.com/apps