Alto

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by alto

Send a finished video with one tracked link per recipient, and see who watched and how far.

video.alto/alto (MCP Server)

This MCP server enables sending a finished video with one tracked link per recipient. It provides reporting on who watched the video and how far each recipient progressed, based on the tracked links.

🛠️ Key Features

Send finished videos
Generate one tracked link per recipient
Track who watched
Track how far viewers watched

🚀 Use Cases

Distribute completed video content to multiple recipients
Monitor recipient engagement and viewing progress

⚡ Developer Benefits

Recipient-level tracking via dedicated tracked links
Watch and progress data available per recipient

⚠️ Limitations

Limited to workflows involving “finished video” delivery and tracked-link based viewing/progress measurement

Captured live from the server via tools/list.

create_upload

Start uploading a finished video (MP4, MOV or WebM) in parts. Returns an uploadId and one URL per part: PUT each part's exact bytes to its URL with the same Authorization header, keep the etag each PUT answers, then call complete_upload. Parts are partBytes long except the last.

Parameters3

bytes	integer	required	The file's size in bytes.
type	string	required	video/mp4, video/quicktime or video/webm.
duration	number	optional	Length in seconds, if known.

Raw schema

{
  "type": "object",
  "properties": {
    "bytes": {
      "type": "integer",
      "description": "The file's size in bytes."
    },
    "type": {
      "type": "string",
      "description": "video/mp4, video/quicktime or video/webm."
    },
    "duration": {
      "type": "number",
      "description": "Length in seconds, if known."
    }
  },
  "required": [
    "bytes",
    "type"
  ]
}

complete_upload

Join the parts of an upload started with create_upload, create the video, and make one tracked link per recipient. Returns the video, its share link and each recipient's link.

Parameters7

uploadId	string	required
parts	array	required	Every part's { part, etag }, from the PUTs.
title	string	required	What the prospect sees, e.g. "Fleet QA for Acme Logistics".
description	string	optional
duration	number	optional	Length in seconds. Needed unless Alto can measure the file.
slug	string	optional	The readable part of the link, optional.
recipients	array	optional	Who to send it to: one tracked link each. Strings like "Dana Whitfield <dana@acme.example>", or objects { name, email, company, title, note }.

Raw schema

{
  "type": "object",
  "properties": {
    "uploadId": {
      "type": "string"
    },
    "parts": {
      "type": "array",
      "description": "Every part's { part, etag }, from the PUTs.",
      "items": {
        "type": "object",
        "properties": {
          "part": {
            "type": "integer"
          },
          "etag": {
            "type": "string"
          }
        }
      }
    },
    "title": {
      "type": "string",
      "description": "What the prospect sees, e.g. \"Fleet QA for Acme Logistics\"."
    },
    "description": {
      "type": "string"
    },
    "duration": {
      "type": "number",
      "description": "Length in seconds. Needed unless Alto can measure the file."
    },
    "slug": {
      "type": "string",
      "description": "The readable part of the link, optional."
    },
    "recipients": {
      "type": "array",
      "description": "Who to send it to: one tracked link each. Strings like \"Dana Whitfield <dana@acme.example>\", or objects { name, email, company, title, note }.",
      "items": {
        "anyOf": [
          {
            "type": "string"
          },
          {
            "type": "object",
            "properties": {
              "name": {
                "type": "string"
              },
              "email": {
                "type": "string"
              },
              "company": {
                "type": "string"
              },
              "title": {
                "type": "string"
              },
              "note": {
                "type": "string"
              }
            }
          }
        ]
      }
    }
  },
  "required": [
    "uploadId",
    "parts",
    "title"
  ]
}

upload_video

Upload a finished video that is already online (an https URL Alto can download, up to 2 GB), create it, and make one tracked link per recipient. For a file on your machine, use create_upload.

Parameters6

url	string	required	An https URL of the video file.
title	string	required
description	string	optional
duration	number	optional	Length in seconds. Needed unless Alto can measure the file.
slug	string	optional
recipients	array	optional	Who to send it to: one tracked link each. Strings like "Dana Whitfield <dana@acme.example>", or objects { name, email, company, title, note }.

Raw schema

{
  "type": "object",
  "properties": {
    "url": {
      "type": "string",
      "description": "An https URL of the video file."
    },
    "title": {
      "type": "string"
    },
    "description": {
      "type": "string"
    },
    "duration": {
      "type": "number",
      "description": "Length in seconds. Needed unless Alto can measure the file."
    },
    "slug": {
      "type": "string"
    },
    "recipients": {
      "type": "array",
      "description": "Who to send it to: one tracked link each. Strings like \"Dana Whitfield <dana@acme.example>\", or objects { name, email, company, title, note }.",
      "items": {
        "anyOf": [
          {
            "type": "string"
          },
          {
            "type": "object",
            "properties": {
              "name": {
                "type": "string"
              },
              "email": {
                "type": "string"
              },
              "company": {
                "type": "string"
              },
              "title": {
                "type": "string"
              },
              "note": {
                "type": "string"
              }
            }
          }
        ]
      }
    }
  },
  "required": [
    "url",
    "title"
  ]
}

create_link

Make a tracked link to a video for one person, so every view is tied to them. Returns the link's URL to paste into an email.

Parameters7

videoId	string	required
name	string	required	Who it's for, e.g. "Dana Whitfield".
email	string	optional
company	string	optional
title	string	optional	Their job title.
note	string	optional	A personal note shown on their demo page.
expiresInDays	integer \| null	optional	Days until the link stops working; null never expires; left out uses the workspace default.

Raw schema

{
  "type": "object",
  "properties": {
    "videoId": {
      "type": "string"
    },
    "name": {
      "type": "string",
      "description": "Who it's for, e.g. \"Dana Whitfield\"."
    },
    "email": {
      "type": "string"
    },
    "company": {
      "type": "string"
    },
    "title": {
      "type": "string",
      "description": "Their job title."
    },
    "note": {
      "type": "string",
      "description": "A personal note shown on their demo page."
    },
    "expiresInDays": {
      "type": [
        "integer",
        "null"
      ],
      "description": "Days until the link stops working; null never expires; left out uses the workspace default."
    }
  },
  "required": [
    "videoId",
    "name"
  ]
}

get_moments

Plays, how much people watched, how far each chapter reached and which one was rewatched, and where the most viewers left. Part of Pro's full API.

Parameters2

videoId	string	required
since	string	optional	Only plays in this window: 90m, 24h, 7d, 2w.

Raw schema

{
  "type": "object",
  "properties": {
    "videoId": {
      "type": "string"
    },
    "since": {
      "type": "string",
      "description": "Only plays in this window: 90m, 24h, 7d, 2w."
    }
  },
  "required": [
    "videoId"
  ]
}

list_viewers

Everyone who opened one of your links: recipients, people their links were forwarded to, and anonymous viewers, with how much they watched and whether they're watching now.

Parameters1

filter

string

optional

Raw schema

{
  "type": "object",
  "properties": {
    "filter": {
      "type": "string",
      "enum": [
        "watching",
        "engaged",
        "dropped"
      ]
    }
  }
}

list_links

Every recipient link, or one video's, with its status (watching, watched, opened, not opened, expired, disabled) and how much was watched.

Parameters2

videoId	string	optional
status	string	optional

Raw schema

{
  "type": "object",
  "properties": {
    "videoId": {
      "type": "string"
    },
    "status": {
      "type": "string"
    }
  }
}

list_videos

Your library, newest first, with each video's id, title, share link and totals.

Parameters

No parameters.

Raw schema

{
  "type": "object",
  "properties": {}
}

Install

Tools (8)

create_uploadcomplete_uploadupload_videocreate_linkget_momentslist_viewerslist_linkslist_videos

Remote endpoint

Streamable HTTP

Hosted server - connect over the network, no local install.

url

https://alto.video/mcp

Add to VS Code Add to Cursor

claude_desktop_config.json

json

{
  "mcpServers": {
    "alto": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote",
        "https://alto.video/mcp"
      ]
    }
  }
}

Desktop config is stdio-only; this bridges via mcp-remote. Native remote: Settings > Connectors.

video.alto/alto (MCP Server)

🛠️ Key Features

🚀 Use Cases

⚡ Developer Benefits

⚠️ Limitations

create_upload

complete_upload

upload_video

create_link

get_moments

list_viewers

list_links

list_videos

Install

Remote endpoint

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