Connect your AI to Kythene

{
  "mcpServers": {
    "kythene": {
      "serverUrl": "https://kythene.com/mcp/kythene"
    }
  }
}

Uses serverUrl, not url.

Opens PROJECT settings when a project is open; reaching global config is a deliberate act. The agent can write the workspace file but not the global one unaided.

Needs an explicit Refresh then Authenticate after editing.

Global: ~/.gemini/config/mcp_config.json · Per-project: .agents/mcp_config.json

No config file to edit. In ChatGPT, add a custom connector pointing at the MCP endpoint above (typically Settings → Connectors → Add custom connector) - Kythene is not in the built-in connector directory, so you paste the URL yourself - then authorise when prompted.

Needs extra per-tool metadata; add via workspace app settings.

Config: workspace app settings (GUI) (global only)

/plugin marketplace add https://kythene.com/.claude-plugin/marketplace.json
/plugin install kythene@kythene

claude mcp add --scope user --transport http kythene https://kythene.com/mcp/kythene

{
  "mcpServers": {
    "kythene": {
      "type": "http",
      "url": "https://kythene.com/mcp/kythene"
    }
  }
}

Defaults to local (per-project) scope - pass --scope user for a memory you want in every repo.

Setting an Authorization header suppresses OAuth: use the URL alone for the sign-in flow, or a key, never both.

Global: ~/.claude.json (--scope user) · Per-project: .mcp.json (--scope project)

No config file to edit. In Claude Desktop / web / mobile, add a custom connector pointing at the MCP endpoint above (typically Settings → Connectors → Add custom connector) - Kythene is not in the built-in connector directory, so you paste the URL yourself - then authorise when prompted.

One custom connector covers Desktop, web, Cowork and mobile - it is account-synced, so add it once.

Config: account-synced (no local JSON) (global only)

{
  "mcpServers": {
    "kythene": {
      "type": "streamableHttp",
      "url": "https://kythene.com/mcp/kythene"
    }
  }
}

Without type it falls back to legacy SSE and fails silently.

Setting an Authorization header suppresses OAuth.

Config: extension globalStorage (global only)

codex mcp add kythene https://kythene.com/mcp/kythene

{
  "mcp_servers": {
    "kythene": {
      "url": "https://kythene.com/mcp/kythene"
    }
  }
}

mcp add writes global only; there is no scope flag.

Config: ~/.codex/config.toml (global only)

One-click install

{
  "mcpServers": {
    "kythene": {
      "url": "https://kythene.com/mcp/kythene"
    }
  }
}

Global: ~/.cursor/mcp.json · Per-project: .cursor/mcp.json

devin mcp add kythene https://kythene.com/mcp/kythene

{
  "mcpServers": {
    "kythene": {
      "transport": "http",
      "url": "https://kythene.com/mcp/kythene"
    }
  }
}

Global: ~/.config/devin/mcp_config.json · Per-project: .devin/mcp_config.json

gemini mcp add --scope user kythene https://kythene.com/mcp/kythene

{
  "mcpServers": {
    "kythene": {
      "httpUrl": "https://kythene.com/mcp/kythene"
    }
  }
}

Defaults to project scope - pass --scope user.

Uses httpUrl, NOT url; url is treated as SSE and fails silently.

Global: ~/.gemini/settings.json · Per-project: .gemini/settings.json

One-click install

{
  "extensions": {
    "kythene": {
      "type": "streamable_http",
      "uri": "https://kythene.com/mcp/kythene"
    }
  }
}

YAML config, not JSON, under extensions: with a uri key.

Deeplinks can fail silently for auth'd streamable-HTTP extensions (block/goose#4006) - use the manual path if so.

Config: ~/.config/goose/config.yaml (global only)

{
  "mcpServers": {
    "kythene": {
      "url": "https://kythene.com/mcp/kythene"
    }
  }
}

This client can't do OAuth - use npx -y mcp-remote https://kythene.com/mcp/kythene as an stdio command entry instead of the URL.

AI Assistant cannot do OAuth (YouTrack LLM-25012) - needs the npx -y mcp-remote <url> shim.

Global: UI Level dropdown (no file) · Per-project: UI Level dropdown

{
  "mcpServers": {
    "kythene": {
      "type": "streamable-http",
      "url": "https://kythene.com/mcp/kythene"
    }
  }
}

This client can't do OAuth - use npx -y mcp-remote https://kythene.com/mcp/kythene as an stdio command entry instead of the URL.

Cannot do OAuth (roo #8119) - needs npx -y mcp-remote <url> as a stdio entry.

type streamable-http is required.

Global: extension globalStorage · Per-project: .roo/mcp.json (wins)

One-click install

{
  "servers": {
    "kythene": {
      "type": "http",
      "url": "https://kythene.com/mcp/kythene"
    }
  }
}

Container is servers (not mcpServers). Both the deeplink and code --add-mcp land in the user profile (global).

Global: user profile mcp.json · Per-project: .vscode/mcp.json

{
  "mcpServers": {
    "kythene": {
      "url": "https://kythene.com/mcp/kythene"
    }
  }
}

OAuth works for LOCAL agents only; Warp cloud agents are unsupported (no API-key path helps there).

Global: ~/.warp/.mcp.json · Per-project: .warp/.mcp.json

{
  "mcpServers": {
    "kythene": {
      "serverUrl": "https://kythene.com/mcp/kythene"
    }
  }
}

DCR unconfirmed; OAuth known. serverUrl or url.

Legacy - Devin CLI is the new Windsurf default.

Config: ~/.codeium/windsurf/mcp_config.json (global only)

{
  "context_servers": {
    "kythene": {
      "url": "https://kythene.com/mcp/kythene"
    }
  }
}

Container is context_servers.

Setting an Authorization header suppresses OAuth.

Global: per-OS settings.json · Per-project: .zed/settings.json (unconfirmed)