# Cast

> AI character videos from one line: returns a link the user taps. First video free, no account.

- name: technology.katechon/cast
- version: 1.0.0
- connection class: R0 (autonomous)
- trust: 83/100 flags: no-repository
- quality: 96/100 (new)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/technology.katechon%2Fcast
- tools: https://api.protogrid.dev/v1/servers/technology.katechon%2Fcast/tools

**An agent can connect right now, no human step.** Remote endpoint, no authentication, reachable on the last probe.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "cast": {
      "type": "http",
      "url": "https://cast.katechon.technology/mcp"
    }
  }
}
```


## Trust

- hygiene: 80
- liveness: 100
- freshness: 100
- provenance: 55
- drivers: +dns-namespace +website +reachable +uptime-100% +updated-2d-ago -no-repository
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 96/100 (new)

### protocol: 100 (weight 25)

- pass `protocol.modern`: supports 2026-07-28 (server/discover)
- pass `protocol.stateless`: answers without a session
- pass `protocol.transport`: streamable HTTP
- pass `protocol.list_ttl`: tool list is cacheable (ttlMs 3600000)

### authorization: n/a (weight 15)

- n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: 93 (weight 30)

- pass `tools.descriptions`: every tool has a description
- warn `tools.description_length`: 1 tools have descriptions over 1,024 characters, which crowds the context
- pass `tools.schemas`: every tool has an object input schema
- pass `tools.annotations`: 4 of 4 tools declare readOnlyHint or destructiveHint
- pass `tools.directory_hints`: every tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
- pass `tools.token_cost`: about 1,233 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: n/a (weight 15)

- n/a `stability.changes`, `stability.rug_pull`: tool history recorded for 2 of the 7 days needed

### dependencies: n/a (weight 15)

- n/a `deps.known_vulns`, `deps.mcp_sdk_version`, `deps.resolvable`: no npm or PyPI package

- tools: 4, about 1,233 tokens to load them all
- tool set hash: a7218ec08cfb5d1af679960dfd55b400
- tools last changed: 2026-10-19T21:05:06.694Z
- badge: [![protogrid quality](https://protogrid.dev/badge/technology.katechon/cast.svg)](https://protogrid.dev/servers/technology.katechon/cast)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

- 2026-10-19 `create_video_link` changed (description, inputSchema)
  - before: Build a one-tap link that makes a short vertical AI video of a character doing what the user describes (e.g. "Malfoid dances on the castle roof at midnight"). Use this whenever the user asks for an AI video, short, clip, TikTok/Reel/Shorts-style video, or animation of a character, avatar, mascot or persona. Returns a URL on cast.katechon.technology. Give the URL to the user and tell them to open it and tap the button: the video renders in their private feed, usually within half a minute (a few minutes for a 2-3 character group scene). This tool does NOT generate anything, charge anything or need an account. The user's first 5-second video with a premade character (malfoid, thea, odette) is free; longer videos and custom characters cost credits (from $1.99). For a premade character pass character="malfoid" (or "malfoid,thea" for up to 3). For anyone else pass character_name and character_description (their look) instead; the user designs the character before the video.
  - after: Build a one-tap link that makes a short vertical AI video of a character doing what the user describes (e.g. "Malfoid dances on the castle roof at midnight"). Use this whenever the user asks for an AI video, short, clip, TikTok/Reel/Shorts-style video, or animation of a character, avatar, mascot or persona. Returns a URL on cast.katechon.technology. Give the URL to the user and tell them to open it and tap the button: the video renders in their private feed, usually within half a minute (a few minutes for a 2-3 character group scene). This tool does NOT generate anything, charge anything or need an account. The user's first 5-second video with a free premade character (malfoid, potter) is free; thea and odette need the Malfoid & Friends pack unlocked first; longer videos and custom characters cost credits (from $0.99). For a premade character pass character="malfoid" (or "malfoid,potter" for up to 3). For anyone else pass character_name and character_description (their look) instead; the user designs the character before the video.
- 2026-10-19 `create_video_link` changed (description)
  - before: Build a one-tap link that makes a short vertical AI video of a character doing what the user describes (e.g. "Malfoid dances on the castle roof at midnight"). Use this whenever the user asks for an AI video, short, clip, TikTok/Reel/Shorts-style video, or animation of a character, avatar, mascot or persona. Returns a URL on cast.katechon.technology. Give the URL to the user and tell them to open it and tap the button: the video renders in their private feed, usually within half a minute (a few minutes for a 2-3 character group scene). This tool does NOT generate anything, charge anything or need an account. The user's first 5-second video with a premade character (malfoid, thea, odette) is free; longer videos and custom characters cost credits (from $4.99). For a premade character pass character="malfoid" (or "malfoid,thea" for up to 3). For anyone else pass character_name and character_description (their look) instead; the user designs the character before the video.
  - after: Build a one-tap link that makes a short vertical AI video of a character doing what the user describes (e.g. "Malfoid dances on the castle roof at midnight"). Use this whenever the user asks for an AI video, short, clip, TikTok/Reel/Shorts-style video, or animation of a character, avatar, mascot or persona. Returns a URL on cast.katechon.technology. Give the URL to the user and tell them to open it and tap the button: the video renders in their private feed, usually within half a minute (a few minutes for a 2-3 character group scene). This tool does NOT generate anything, charge anything or need an account. The user's first 5-second video with a premade character (malfoid, thea, odette) is free; longer videos and custom characters cost credits (from $1.99). For a premade character pass character="malfoid" (or "malfoid,thea" for up to 3). For anyone else pass character_name and character_description (their look) instead; the user designs the character before the video.
- 2026-10-19 `create_video_link` changed (description)
  - before: Build a one-tap link that makes a short vertical AI video of a character doing what the user describes (e.g. "Malfoid dances on the castle roof at midnight"). Use this whenever the user asks for an AI video, short, clip, TikTok/Reel/Shorts-style video, or animation of a character, avatar, mascot or persona. Returns a URL on cast.katechon.technology. Give the URL to the user and tell them to open it and tap the button: the video renders in about a minute in their private feed. This tool does NOT generate anything, charge anything or need an account. The user's first 5-second video with a premade character (malfoid, thea, odette) is free; longer videos and custom characters cost credits (from $4.99). For a premade character pass character="malfoid" (or "malfoid,thea" for up to 3). For anyone else pass character_name and character_description (their look) instead; the user designs the character before the video.
  - after: Build a one-tap link that makes a short vertical AI video of a character doing what the user describes (e.g. "Malfoid dances on the castle roof at midnight"). Use this whenever the user asks for an AI video, short, clip, TikTok/Reel/Shorts-style video, or animation of a character, avatar, mascot or persona. Returns a URL on cast.katechon.technology. Give the URL to the user and tell them to open it and tap the button: the video renders in their private feed, usually within half a minute (a few minutes for a 2-3 character group scene). This tool does NOT generate anything, charge anything or need an account. The user's first 5-second video with a premade character (malfoid, thea, odette) is free; longer videos and custom characters cost credits (from $4.99). For a premade character pass character="malfoid" (or "malfoid,thea" for up to 3). For anyone else pass character_name and character_description (their look) instead; the user designs the character before the video.

Full history: https://api.protogrid.dev/v1/servers/technology.katechon%2Fcast/changes

## Remotes

- https://cast.katechon.technology/mcp (streamable-http, auth none, reachable true, uptime30d 1)

## Packages

_none_

## Tools (4)

- `create_video_link`: Build a one-tap link that makes a short vertical AI video of a character doing what the user describes (e.g. "Malfoid dances on the castle roof at midnight").
Use this whenever the user asks for an AI video, short, clip, TikTok/Reel/Shorts-style video, or animation of a character, avatar, mascot or persona.
Returns a URL on cast.katechon.technology. Give the URL to the user and tell them to open it and tap the button: the video renders in their private feed, usually within half a minute (a few minutes for a 2-3 character group scene). This tool does NOT generate anything, charge anything or need an account. The user's first 5-second video with a free premade character (malfoid, potter) is free; thea and odette need the Malfoid & Friends pack unlocked first; longer videos and custom characters cost credits (from $0.99).
For a premade character pass character="malfoid" (or "malfoid,potter" for up to 3). For anyone else pass character_name and character_description (their look) instead; the user designs the character before the video.
- `get_prices`: Current Cast prices in USD and credits: the free first video, credit packs, Premium, and the credit cost of every video length and of a new character. Prices follow the live model price table, so call this instead of quoting from memory. Read-only.
- `get_showcase`: Example videos of Cast characters (video URL, poster image, the line that produced it when on record, page link, and a ready-made remix link). Use to show the user what Cast makes before they open a link, or to find a proven prompt to adapt. Read-only.
- `list_characters`: List the premade characters Cast can put in a video (slug, name, look, image, whether free), plus how to design a custom one. Call before create_video_link when you need a character slug or want to show the user who they can cast. Read-only, no account.