Tts MCP server
{
"mcpServers": {
"unlimitedtts-tts": {
"command": "npx",
"args": [
"-y",
"@unlimitedtts/mcp@latest"
],
"env": {
"UNLIMITEDTTS_QUOTE_TOKEN_SECRET": "<unlimitedtts_quote_token_secret>"
}
}
}
}{
"mcpServers": {
"unlimitedtts-tts": {
"command": "npx",
"args": [
"-y",
"@unlimitedtts/mcp@latest"
],
"env": {
"UNLIMITEDTTS_QUOTE_TOKEN_SECRET": "<unlimitedtts_quote_token_secret>"
}
}
}
}{
"mcpServers": {
"unlimitedtts-tts": {
"command": "npx",
"args": [
"-y",
"@unlimitedtts/mcp@latest"
],
"env": {
"UNLIMITEDTTS_QUOTE_TOKEN_SECRET": "<unlimitedtts_quote_token_secret>"
}
}
}
}{
"servers": {
"unlimitedtts-tts": {
"command": "npx",
"args": [
"-y",
"@unlimitedtts/mcp@latest"
],
"env": {
"UNLIMITEDTTS_QUOTE_TOKEN_SECRET": "${input:unlimitedtts_quote_token_secret}"
}
}
},
"inputs": [
{
"id": "unlimitedtts_quote_token_secret",
"type": "promptString",
"description": "Unlimitedtts quote token secret",
"password": true
}
]
}{
"mcpServers": {
"unlimitedtts-tts": {
"command": "npx",
"args": [
"-y",
"@unlimitedtts/mcp@latest"
],
"env": {
"UNLIMITEDTTS_QUOTE_TOKEN_SECRET": "<unlimitedtts_quote_token_secret>"
}
}
}
}file .mcp.json (in your project root)file claude_desktop_config.jsonfile ~/.cursor/mcp.jsonfile .vscode/mcp.jsonfile ~/.codeium/windsurf/mcp_config.jsoninstall npx -y @unlimitedtts/mcpversion 0.1.0
What it does
An MCP server that exposes text-to-speech synthesis via quote-first x402 payment challenges. It validates payments, enforces configurable spend limits, stores MP3 artifacts, and maintains receipts. Designed for AI agents that need to synthesize speech with explicit cost control and non-custodial payment verification.
- Generate speech from text with upfront cost quotes and spend policy enforcement before synthesis occurs.
- Store synthesized MP3 files locally with restricted permissions while maintaining an audit trail of all synthesis requests and payments.
- Integrate text-to-speech into agent workflows that require explicit budget tracking and per-call spending limits.
Tools this server exposes
| Tool | Does |
|---|---|
| tts_list_voices | Retrieves available voices and caches the result for five minutes. |
| tts_quote | Sends synthesis parameters to the API without payment, validates the returned cost, enforces local spend policy, and returns a short-lived HMAC token. |
| tts_synthesize | Completes the x402 payment flow using an external signature, synthesizes the audio, writes the MP3 artifact, and records a sanitized receipt. |
Before you enable it
An MCP server runs with whatever access you give it. Start with a development account rather than production, and check which tools the server exposes before you let an agent call them unattended.