text_to_speech_stream · Typecast API MCP Server MCP

WHAT IT DOES

What text_to_speech_stream does on Typecast API MCP Server

AI agents invoke text_to_speech_stream to trigger actions in Typecast API MCP Server. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

WHY IT NEEDS A POLICY

Why text_to_speech_stream needs a policy

This tool triggers an external TTS operation that streams audio data in chunks. It executes a real-time audio generation process via the Typecast API, consuming API credits/quota and producing side effects (streaming audio output). It goes beyond a simple read/query, as it actively initiates and manages a streaming operation.

From the tool's definition Convert text to speech with chunked streaming for low-latency delivery

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

text_to_speech_stream Rate-limited

text_to_speech_stream stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "text_to_speech_stream": {
      "limits": [
        {
          "counter": "text_to_speech_stream_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Typecast API MCP Server, so you can run agents against it safely.

FAQ

Questions about text_to_speech_stream

What does the text_to_speech_stream tool do? +

Convert text to speech with chunked streaming for low-latency delivery. It is categorised as a Execute tool in the Typecast API MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on text_to_speech_stream? +

Register the Typecast API MCP Server MCP server in PolicyLayer and add a rule for text_to_speech_stream: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Typecast API MCP Server. Nothing to install.

What risk level is text_to_speech_stream? +

text_to_speech_stream is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit text_to_speech_stream? +

Yes. Add a rate_limit block to the text_to_speech_stream rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block text_to_speech_stream completely? +

Set action: deny in the PolicyLayer policy for text_to_speech_stream. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides text_to_speech_stream? +

text_to_speech_stream is provided by the Typecast API MCP Server MCP server (neosapience/typecast-api-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.