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MCP server for dTelecom real-time speech-to-text with x402 micropayments

1 stars JavaScriptOthers Updated Feb 18, 2026
depinmcpreal-timespeech-to-textstttranscriptionusdcx402

Documentation

@dtelecom/stt-mcp

MCP (Model Context Protocol) server for dTelecom real-time speech-to-text with x402 micropayments.

Lets AI assistants (Claude, Cursor, etc.) transcribe audio files using dTelecom STT — pay-per-use with USDC, no API keys needed.

Tools

ToolDescription
`transcribe_file`Transcribe a WAV file (PCM16, 16kHz, mono) to text
`stt_pricing`Get current pricing ($0.005/min)
`stt_health`Check service health

Setup

1. Install

bash
npm install -g @dtelecom/stt-mcp

2. Get a wallet

You need a private key with USDC. Either:

  • EVM (Base): Ethereum private key (0x hex) with USDC on Base — MetaMask, etc.
  • Solana: Solana private key (base58) with USDC on Solana — Phantom, Solflare, etc.

3. Configure your AI assistant

Claude Code (`~/.claude.json`):

json
{
  "mcpServers": {
    "dtelecom-stt": {
      "command": "dtelecom-stt-mcp",
      "env": {
        "DTELECOM_PRIVATE_KEY": "YOUR_PRIVATE_KEY"
      }
    }
  }
}

Claude Desktop (`claude_desktop_config.json`):

json
{
  "mcpServers": {
    "dtelecom-stt": {
      "command": "npx",
      "args": ["-y", "@dtelecom/stt-mcp"],
      "env": {
        "DTELECOM_PRIVATE_KEY": "YOUR_PRIVATE_KEY"
      }
    }
  }
}

Cursor (Settings > MCP Servers > Add):

json
{
  "dtelecom-stt": {
    "command": "npx",
    "args": ["-y", "@dtelecom/stt-mcp"],
    "env": {
      "DTELECOM_PRIVATE_KEY": "YOUR_PRIVATE_KEY"
    }
  }
}

4. Convert audio (if needed)

The tool accepts WAV files in PCM16 16kHz mono format. Convert with:

bash
ffmpeg -i input.mp3 -ar 16000 -ac 1 -acodec pcm_s16le output.wav

Environment Variables

VariableRequiredDefaultDescription
`DTELECOM_PRIVATE_KEY`YesEVM key (0x hex) or Solana key (base58)
`DTELECOM_STT_URL`No`https://x402stt.dtelecom.org`STT service URL

Pricing

  • $0.005/min, billed per session
  • Minimum 5 minutes ($0.025)
  • Paid in USDC on Base or Solana via x402 protocol
  • No accounts, no API keys, no subscriptions

License

MIT

Frequently asked questions

What is stt-mcp?

stt-mcp is MCP server for dTelecom real-time speech-to-text with x402 micropayments

How do I install stt-mcp?

Open the GitHub repository and follow its README. Most MCP servers are added to your client's MCP config, then called by your agent.

Is stt-mcp open source?

Yes — it is hosted on GitHub at https://github.com/dTelecom/stt-mcp and has 1 stars.

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