Cast
AI character videos from one line: returns a link the user taps. First video free, no account.
Should I use this
Quality & Safety
Based on automated analysis of tool definitions and protocol compliance.
Context Cost
This is the approximate number of tokens consumed each time the server's tools are loaded into a model's context. Higher counts reduce the attention available for other tasks.
Install
One-Click Install
Add this to your `claude_desktop_config.json` file:
{
"mcpServers": {
"cast": {
"url": "https://cast.katechon.technology/mcp"
}
}
}Remote endpoints
https://cast.katechon.technology/mcpstreamable-httpWhat it can do
Tool inventory
Tools (4)
🟢create_video_link(prompt, character, character_name, character_description, style, ...)
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.
Input Schema
{
"type": "object",
"properties": {
"prompt": {
"type": "string",
"maxLength": 500,
"description": "What happens in the video, one line in plain words, present tense, without the character's name at the start. Concrete action + place works best: \"dances on the castle roof at midnight\", \"reads her hate comments live and claps back\"."
},
"character": {
"type": "string",
"description": "Premade character slug(s), comma-separated, up to 3: malfoid, potter, thea, odette. Omit when using character_name/character_description."
},
"character_name": {
"type": "string",
"maxLength": 40,
"description": "Name of a NEW character to design (not one of the premade slugs)."
},
"character_description": {
"type": "string",
"maxLength": 400,
"description": "The new character's look in one or two sentences: age, hair, face, clothes, vibe. Required for a good result when character_name is set."
},
"style": {
"type": "string",
"enum": [
"influencer",
"cinematic",
"sakuga",
"glam",
"vhs",
"vlog",
"dark-fantasy",
"toon3d"
],
"description": "Visual style. influencer: Phone-camera real; cinematic: Feature-film look; sakuga: Hand-painted anime action; glam: Fashion-week polish; vhs: Camcorder nostalgia; vlog: Warm everyday diary; dark-fantasy: Gothic myth & magic; toon3d: Animated-feature charm. Default influencer."
},
"camera": {
"type": "string",
"enum": [
"auto",
"selfie",
"close-up",
"wide",
"handheld",
"push-in",
"chase",
"low-angle",
"overhead",
"held"
],
"description": "Camera. auto: Let it decide; selfie: Phone-POV one-take; close-up: Faces fill the frame; wide: Big world, small figures; handheld: Breathing operator; push-in: Slow dolly in; chase: Tracking at speed; low-angle: Hero from below; overhead: God's-eye view; held: Locked-off frame. Default selfie (phone-POV livestream)."
},
"vibe": {
"type": "string",
"enum": [
"chill",
"hype",
"dreamy",
"eerie",
"melancholy",
"romantic",
"epic",
"comedy",
"fury"
],
"description": "Mood and pacing. chill: Warm, low stakes; hype: Kinetic energy; dreamy: Soft and floating; eerie: Quiet dread; melancholy: Rain and distance; romantic: Tender and close; epic: Enormous scale; comedy: Snappy timing; fury: Rage with weight. Default hype."
},
"seconds": {
"type": "integer",
"enum": [
5,
10,
15
],
"description": "Length in seconds. 5 is the free first video; up to 10 without Premium; 15 needs Premium."
}
},
"required": [
"prompt"
],
"additionalProperties": false
}Output Schema
{
"type": "object",
"properties": {
"url": {
"type": "string"
},
"character": {
"type": "string"
},
"prompt": {
"type": "string"
},
"style": {
"type": "string"
},
"camera": {
"type": "string"
},
"vibe": {
"type": "string"
},
"seconds": {
"type": "integer"
},
"credits": {
"type": "integer"
},
"free_for_new_visitors": {
"type": "boolean"
},
"notes": {
"type": "array",
"items": {
"type": "string"
}
}
},
"required": [
"url"
]
}🟢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.
Input Schema
{
"type": "object",
"properties": {},
"additionalProperties": false
}Output Schema
{
"type": "object",
"properties": {
"characters": {
"type": "array",
"items": {
"type": "object",
"properties": {
"slug": {
"type": "string"
},
"name": {
"type": "string"
},
"pack": {
"type": "string"
},
"free": {
"type": "boolean"
},
"image": {
"type": "string"
},
"look": {
"type": "string"
}
},
"required": [
"slug",
"name"
]
}
},
"custom": {
"type": "string"
}
},
"required": [
"characters"
]
}🟢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.
Input Schema
{
"type": "object",
"properties": {},
"additionalProperties": false
}🟢get_showcase(limit)
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.
Input Schema
{
"type": "object",
"properties": {
"limit": {
"type": "integer",
"minimum": 1,
"maximum": 20,
"description": "How many examples (default 6)."
}
},
"additionalProperties": false
}Community
Evidence