aiogram-mcp

Instructions

Implementation Reference

• aiogram_mcp/tools/media.py:86-131 (handler)

  The send_voice function handles sending a voice message to a Telegram chat, including rate limiting and permission checks.

  async def send_voice(
      chat_id: int,
      voice_url: str,
      caption: str | None = None,
      parse_mode: str | None = "HTML",
      duration: int | None = None,
      disable_notification: bool = False,
  ) -> SendMediaResult:
      """Send a voice message to a Telegram chat.
  
      Args:
          chat_id: Target chat ID.
          voice_url: URL or file_id of the voice message (OGG with OPUS).
          caption: Optional caption.
          parse_mode: HTML, Markdown, MarkdownV2, or None.
          duration: Duration in seconds.
          disable_notification: Send silently.
      """
      if not ctx.is_chat_allowed(chat_id):
          result = SendMediaResult(ok=False, error=f"Chat {chat_id} is not allowed.")
          if ctx.audit_logger:
              ctx.audit_logger.log(
                  "send_voice",
                  {"chat_id": chat_id, "voice_url": voice_url},
                  result.ok,
                  result.error,
              )
          return result
  
      try:
          if ctx.rate_limiter:
              await ctx.rate_limiter.acquire()
          msg = await ctx.bot.send_voice(
              chat_id=chat_id,
              voice=voice_url,
              caption=caption,
              parse_mode=normalize_parse_mode(parse_mode),
              duration=duration,
              disable_notification=disable_notification,
          )
          result = SendMediaResult(ok=True, message_id=msg.message_id, chat_id=msg.chat.id)
      except ValueError as exc:
          result = SendMediaResult(ok=False, error=str(exc))
      except (TelegramBadRequest, TelegramForbiddenError) as exc:
          result = SendMediaResult(ok=False, error=str(exc))