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UpdatedMay 29, 2026 at 01:18

Self-hosted voice AI platform — Vapi/Retell alternative with MCP and visual workflow builder

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RajeshKalidandi

RajeshKalidandi/awesome-niche-tools

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SKILL.md

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name	dograh
description	Self-hosted voice AI platform — Vapi/Retell alternative with MCP and visual workflow builder
tags	["voice-ai","telephony","selfhosted","mcp","stt","tts"]
related_skills	["hermes-agent"]

Dograh — Self-Hosted Voice AI Platform

Build, deploy, and manage voice AI applications on your own infrastructure. MCP native.

Prerequisites

Python 3.10+
API keys for STT/TTS providers (Deepgram, ElevenLabs, OpenAI, etc.)
Telephony provider (Twilio, Vonage) for inbound/outbound calls

Installation

git clone https://github.com/dograh-hq/dograh.git
cd dograh
pip install -e .

Configuration

# Set provider keys
export OPENAI_API_KEY=*** DEEPGRAM_API_KEY=*** ELEVENLABS_API_KEY=***
# Or use .env file
cp .env.example .env

Usage

Start the server

dograh serve --port 8080

Create a voice workflow

curl -X POST http://localhost:8080/api/workflows \
  -H "Content-Type: application/json" \
  -d '{
    "name": "appointment-scheduler",
    "voice": "alloy",
    "llm": "gpt-4",
    "prompt": "You are a friendly appointment scheduler. Help callers book appointments.",
    "max_duration_seconds": 300
  }'

MCP Server (for AI agent integration)

dograh mcp --port 8090
# Add to agent config:
# "mcpServers": {"dograh": {"command": "dograh", "args": ["mcp", "--port", "8090"]}}

Common Pitfalls

Latency: First response may be slow (LLM cold start). Use streaming for real-time feel.
Telephony costs: Self-hosting eliminates platform fees, but you still pay Twilio/Vonage per minute.
Voice quality: Test with your target TTS provider — some voices sound robotic at speed.
Concurrent calls: Default config handles ~10 concurrent calls. Scale workers for more.
MCP auth: When exposing MCP server, add authentication for production use.

Verification

# Start server
dograh serve --port 8080 &

# Health check
curl http://localhost:8080/health

# Create test workflow
curl -X POST http://localhost:8080/api/workflows \
  -H "Content-Type: application/json" \
  -d '{"name": "test", "voice": "alloy", "llm": "gpt-4", "prompt": "Say hello"}'

# List workflows
curl http://localhost:8080/api/workflows

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Dograh — Self-Hosted Voice AI Platform

Build, deploy, and manage voice AI applications on your own infrastructure. MCP native.

Prerequisites

Python 3.10+

API keys for STT/TTS providers (Deepgram, ElevenLabs, OpenAI, etc.)

Telephony provider (Twilio, Vonage) for inbound/outbound calls

Installation

git clone https://github.com/dograh-hq/dograh.git cd dograh pip install -e .

Configuration

# Set provider keys export OPENAI_API_KEY=*** DEEPGRAM_API_KEY=*** ELEVENLABS_API_KEY=*** # Or use .env file cp .env.example .env

Usage

Start the server

dograh serve --port 8080

Create a voice workflow

curl -X POST http://localhost:8080/api/workflows \ -H "Content-Type: application/json" \ -d '{ "name": "appointment-scheduler", "voice": "alloy", "llm": "gpt-4", "prompt": "You are a friendly appointment scheduler. Help callers book appointments.", "max_duration_seconds": 300 }'

MCP Server (for AI agent integration)

dograh mcp --port 8090 # Add to agent config: # "mcpServers": {"dograh": {"command": "dograh", "args": ["mcp", "--port", "8090"]}}

Common Pitfalls

Latency: First response may be slow (LLM cold start). Use streaming for real-time feel.

Telephony costs: Self-hosting eliminates platform fees, but you still pay Twilio/Vonage per minute.

Voice quality: Test with your target TTS provider — some voices sound robotic at speed.

Concurrent calls: Default config handles ~10 concurrent calls. Scale workers for more.

MCP auth: When exposing MCP server, add authentication for production use.

Verification

# Start server dograh serve --port 8080 & # Health check curl http://localhost:8080/health # Create test workflow curl -X POST http://localhost:8080/api/workflows \ -H "Content-Type: application/json" \ -d '{"name": "test", "voice": "alloy", "llm": "gpt-4", "prompt": "Say hello"}' # List workflows curl http://localhost:8080/api/workflows