# List Blocks — Twilio SendGrid

> Allows you to list all email addresses that are currently on your blocks list. See the docs here

- Key: `sendgrid-list-blocks`
- Type: Action (Read-only)
- Version: 0.0.6
- App: Twilio SendGrid (`sendgrid`) — https://pipedream.com/apps/sendgrid.md
- This page (HTML): https://pipedream.com/apps/sendgrid/actions/list-blocks
- Hints: read-only · open-world
- Source: https://github.com/PipedreamHQ/pipedream/blob/master/components/sendgrid/actions/list-blocks/list-blocks.mjs

## Description

Allows you to list all email addresses that are currently on your blocks list. [See the docs here](https://docs.sendgrid.com/api-reference/blocks-api/retrieve-all-blocks)

## Props

| Prop | Type | Required | Description |
|---|---|---|---|
| `startTime` | `integer` | No | The start of the time range when a blocked email was created (inclusive). This is a unix timestamp. |
| `endTime` | `integer` | No | The end of the time range when a blocked email was created (inclusive). This is a unix timestamp. |
| `numberOfBlocks` | `integer` | Yes | Indicates the max number of blocked emails to return |

## 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": "sendgrid",
      },
    },
  },
)

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: "sendgrid-list-blocks",
  arguments: {
    startTime: 10,
    endTime: 10,
  },
})
```

**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: "sendgrid-list-blocks",
  externalUserId: "{external_user_id}", // any stable ID for this user in your system
  configuredProps: {
    sendgrid: { authProvisionId: "apn_xxxxxxx" },
    startTime: 10,
    endTime: 10,
  },
})

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": "sendgrid-list-blocks",
    "configured_props": {
      "sendgrid": { "authProvisionId": "apn_xxxxxxx" },
      "startTime": 10,
      "endTime": 10
    }
  }'
```

---

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