# bitHuman

> Animated AI characters in your chat: short clips of a character saying your words, or a live talk.

- name: ai.bithuman/characters
- version: 1.0.0
- connection class: R0 (autonomous)
- trust: 83/100 flags: no-repository
- quality: 75/100 (good)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/ai.bithuman%2Fcharacters
- tools: https://api.protogrid.dev/v1/servers/ai.bithuman%2Fcharacters/tools

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

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "characters": {
      "type": "http",
      "url": "https://mcp.bithuman.ai/mcp"
    }
  }
}
```


## Trust

- hygiene: 80
- liveness: 100
- freshness: 100
- provenance: 55
- drivers: +dns-namespace +website +reachable +uptime-100% +updated-12d-ago -no-repository
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 75/100 (good)

### protocol: 75 (weight 25)

- warn `protocol.modern`: newest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
- n/a `protocol.stateless`: only applies to 2026-07-28 servers
- pass `protocol.transport`: streamable HTTP
- n/a `protocol.list_ttl`: only applies to 2026-07-28 servers

### 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: 100 (weight 30)

- pass `tools.descriptions`: every tool has a description
- pass `tools.description_length`: descriptions are concise
- pass `tools.schemas`: every tool has an object input schema
- pass `tools.annotations`: 3 of 3 tools declare readOnlyHint or destructiveHint
- pass `tools.directory_hints`: every tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
- pass `tools.token_cost`: about 858 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: 25 (weight 15)

- warn `stability.changes`: 10 tool changes in 30 days
- fail `stability.rug_pull`: 3 tools kept their name but changed most of their description in 30 days; review before trusting them

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

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

- tools: 3, about 858 tokens to load them all
- tool set hash: 6f161dd306321efe181f4950ad5b9201
- tools last changed: 2026-10-16T22:32:18.411Z
- badge: [![protogrid quality](https://protogrid.dev/badge/ai.bithuman/characters.svg)](https://protogrid.dev/servers/ai.bithuman/characters)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

- 2026-10-16 `talk_to_character` changed (inputSchema)
- 2026-10-16 `make_character_video` changed (inputSchema)
- 2026-10-14 `talk_to_character` changed (description, inputSchema) **meaning changed**
  - before: Open a live voice conversation with one bitHuman house character in the chat. The character listens through the microphone and answers out loud for up to a minute. Use a character id from list_characters.
  - after: Open a live voice conversation with one bitHuman house character in a player in the chat. The user presses Start and speaks through the microphone; the character answers out loud. A conversation lasts up to 60 seconds (max_seconds), then ends by itself; call again for another. Returns session_url: when the host shows no player, give the user that link. Example: {"character": "wise-pup"}. Needs a microphone in the user's browser. Errors come back as isError: an unknown character (call list_characters and use an id whose `talk` is true), resting (live conversations are off right now; make_character_video still works).
- 2026-10-14 `make_character_video` changed (description, inputSchema, outputSchema) **meaning changed**
  - before: Make a short video of one bitHuman house character saying the given words, in its own voice. Use a character id from list_characters. The text is said word for word: 3 to 200 characters, about 15 seconds of speech. Returns a video URL that plays inline, labelled AI character.
  - after: Make a short video of one bitHuman house character saying `text` word for word, in its own voice. Returns video_url (an MP4 that plays inline and expires after 7 days), duration_seconds and share_url, labelled AI character. Example: {"character": "wise-pup", "text": "Welcome back! Ready for today's lesson?"}. Limits: `text` is 3 to 200 characters and at most 19 seconds when spoken (about 15 s is typical); one video at a time per user; 10 videos per user per UTC day; the same character and text again replays the earlier clip at once. Errors come back as isError with one sentence saying what to do: an unknown character (call list_characters), text too short or too long (rewrite it), personal information such as a phone number, email or street address (remove it), busy (retry in a minute), the daily limit (try again after 00:00 UTC), resting (try later). To hold a conversation in character, write each reply yourself and call this tool once per reply.
- 2026-10-14 `list_characters` changed (description) **meaning changed**
  - before: List the bitHuman house characters that can speak in a video: id, name, a short description and a picture.
  - after: List the bitHuman house characters that can speak. Each has an id (pass it as `character` to make_character_video or talk_to_character), a name, a short description, a picture URL and `talk` (true when talk_to_character is open for it). No arguments, free and read-only; one call per conversation is enough. Only these characters can speak: real people, photos and custom voices are not supported.
- 2026-10-10 `report_widget_capabilities` removed
  - Used by the bitHuman widget only: records which display modes and browser features the host allows (booleans, no user data).
- 2026-10-10 `talk_to_character` changed (inputSchema)
- 2026-10-10 `make_character_video` changed (annotations)
- 2026-10-09 `talk_to_character` changed (inputSchema)
- 2026-10-08 `report_widget_capabilities` changed (inputSchema)

Full history: https://api.protogrid.dev/v1/servers/ai.bithuman%2Fcharacters/changes

## Remotes

- https://mcp.bithuman.ai/mcp (streamable-http, auth none, reachable true, uptime30d 1)

## Packages

_none_

## Tools (3)

- `list_characters`: List the bitHuman house characters that can speak. Each has an id (pass it as `character` to make_character_video or talk_to_character), a name, a short description, a picture URL and `talk` (true when talk_to_character is open for it). No arguments, free and read-only; one call per conversation is enough. Only these characters can speak: real people, photos and custom voices are not supported.
- `make_character_video`: Make a short video of one bitHuman house character saying `text` word for word, in its own voice. Returns video_url (an MP4 that plays inline and expires after 7 days), duration_seconds and share_url, labelled AI character. Example: {"character": "wise-pup", "text": "Welcome back! Ready for today's lesson?"}. Limits: `text` is 3 to 200 characters and at most 19 seconds when spoken (about 15 s is typical); one video at a time per user; 10 videos per user per UTC day; the same character and text again replays the earlier clip at once. Errors come back as isError with one sentence saying what to do: an unknown character (call list_characters), text too short or too long (rewrite it), personal information such as a phone number, email or street address (remove it), busy (retry in a minute), the daily limit (try again after 00:00 UTC), resting (try later). To hold a conversation in character, write each reply yourself and call this tool once per reply.
- `talk_to_character`: Open a live voice conversation with one bitHuman house character in a player in the chat. The user presses Start and speaks through the microphone; the character answers out loud. A conversation lasts up to 60 seconds (max_seconds), then ends by itself; call again for another. Returns session_url: when the host shows no player, give the user that link. Example: {"character": "wise-pup"}. Needs a microphone in the user's browser. Errors come back as isError: an unknown character (call list_characters and use an id whose `talk` is true), resting (live conversations are off right now; make_character_video still works).