MCP Server vs Vox MCP
A side-by-side look at the MCP Server and Vox MCP MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose MCP Server for conversational ai work as a local process; choose Vox MCP for conversational ai as a local process. You can also run both side by side in one mcpServers block.
Which MCP server should you choose?
Choose MCP Server when
- You need dedicated capabilities in the Conversational AI domain.
- You prefer a local stdio subprocess transport.
- Its auth model fits you: API key required.
- You have the keys it needs:
VAPI_TOKEN. - You want tools like
list_assistants, create_assistant, get_assistant.
Choose Vox MCP when
- You need dedicated capabilities in the Conversational AI domain.
- You prefer a local stdio subprocess transport.
- You have the keys it needs:
GEMINI_API_KEY, OPENAI_API_KEY, ANTHROPIC_API_KEY, XAI_API_KEY, DEEPSEEK_API_KEY, MOONSHOT_API_KEY, OPENROUTER_API_KEY, CUSTOM_API_URL.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | Conversational AI | Conversational AI |
| Quality signal | 68/100 · Great | 40/100 · Fair |
| Install command | Confirmed | Confirmed |
| Transport | Local subprocess (stdio) | Local subprocess (stdio) |
| Auth | API key required | Not declared |
| Pricing | BYOK (pay the provider) | Not declared |
| Required env vars | VAPI_TOKEN | GEMINI_API_KEYOPENAI_API_KEYANTHROPIC_API_KEYXAI_API_KEYDEEPSEEK_API_KEYMOONSHOT_API_KEYOPENROUTER_API_KEYCUSTOM_API_URL |
| Verified owner | Community listing | Community listing |
| GitHub stars | 58 | 1 |
| Directory activity | 1 views 0 installs 0 upvotes | 1 views 0 installs 0 upvotes |
| Tools | 13 | Not listed |
| Full listing | View MCP Server | View Vox MCP |
Tools & capabilities
MCP Server tools 13
list_assistantsLists all Vapi assistantscreate_assistantCreates a new Vapi assistantget_assistantGets a Vapi assistant by IDupdate_assistantUpdates an existing Vapi assistantlist_callsLists all Vapi callscreate_callCreates a outbound callget_callGets details of a specific calllist_phone_numbersLists all Vapi phone numbersget_phone_numberGets details of a specific phone numberlist_toolsLists all Vapi toolsget_toolGets details of a specific toolcreate_toolCreates a new Vapi tool- +1 more on the listing page
Vox MCP tools
No tool names declared yet. Check the project README from the listing page.
Ready-to-paste client configs
Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.
MCP Server
{
"mcpServers": {
"vapi-ai-mcp-server": {
"command": "npx",
"args": [
"-y",
"@vapi-ai/mcp-server"
],
"env": {
"VAPI_TOKEN": "YOUR_VAPI_TOKEN_HERE"
}
}
}
}
Vox MCP
{
"mcpServers": {
"vox-mcp": {
"command": "uvx",
"args": [
"--refresh",
"vox-mcp"
],
"env": {
"GEMINI_API_KEY": "YOUR_GEMINI_API_KEY_HERE",
"OPENAI_API_KEY": "YOUR_OPENAI_API_KEY_HERE",
"ANTHROPIC_API_KEY": "YOUR_ANTHROPIC_API_KEY_HERE",
"XAI_API_KEY": "YOUR_XAI_API_KEY_HERE",
"DEEPSEEK_API_KEY": "YOUR_DEEPSEEK_API_KEY_HERE",
"MOONSHOT_API_KEY": "YOUR_MOONSHOT_API_KEY_HERE",
"OPENROUTER_API_KEY": "YOUR_OPENROUTER_API_KEY_HERE",
"CUSTOM_API_URL": "YOUR_CUSTOM_API_URL_HERE"
}
}
}
}
Frequently asked questions
MCP Server is categorized under Conversational AI and uses a local stdio subprocess. Vox MCP belongs to Conversational AI and uses a local stdio subprocess. Pick MCP Server for conversational ai work and Vox MCP for conversational ai.
Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client.
MCP Server is bring-your-own-key: usage is billed by the API provider you supply a key for. Auth: api key required. Vox MCP has no declared pricing — check the project's own site. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.
Yes. MCP clients support multiple servers: add vapi-ai-mcp-server and vox-mcp as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, MCP Server has a quality signal of 68/100 (Great) with 1 views, 0 installs and 58 GitHub stars. Vox MCP has 40/100 (Fair) with 1 views, 0 installs and 1 GitHub stars.