List all available audio voices for text-to-speech generation
AI agents call listAudioVoices to retrieve information from MCPollinations Multimodal MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a read-only operation to enumerate available voices. It retrieves data from the Pollinations service but does not create, modify, delete, execute code, or trigger external operations with side effects. The result is informational only, used to inform subsequent actions rather than perform them.
From the tool's definition Tool name 'listAudioVoices' and description 'List all available audio voices for text-to-speech generation' indicate a query operation that retrieves metadata without side effects.
Documented attack patterns abuse exactly the kind of access listAudioVoices gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and MCPollinations Multimodal MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for listAudioVoices:
{
"version": "1",
"default": "deny",
"tools": {
"listAudioVoices": {}
}
}listAudioVoices is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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List all available audio voices for text-to-speech generation. It is categorised as a Read tool in the MCPollinations Multimodal MCP Server MCP Server, which means it retrieves data without modifying state.
Register the MCPollinations Multimodal MCP Server MCP server in PolicyLayer and add a rule for listAudioVoices: 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 MCPollinations Multimodal MCP Server. Nothing to install.
listAudioVoices is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the listAudioVoices 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.
Set action: deny in the PolicyLayer policy for listAudioVoices. 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.
listAudioVoices is provided by the MCPollinations Multimodal MCP Server MCP server (pinkpixel-dev/mcpollinations). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 9 MCPollinations Multimodal MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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9 MCPollinations Multimodal MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.