Bring Voice Ai
to LlamaIndex
Create your Vinkius account to connect Vapi to LlamaIndex and start using all 10 AI tools in minutes. Fully managed, enterprise secure, and ready to use without writing a single line of code. No hosting, no server setup — just connect and start using.
GDPR Free for SubscribersCompatible with every major AI agent and IDE
Gemini
What is the Vapi MCP Server?
Connect your Vapi account to any AI agent and bring the power of automated voice communication into your standard conversational workspace.
What you can do
- Phone Calling — Send commands instructing the agent to place outbound human-like phone calls and establish web ringing connections through Vapi's PSTN/WebRTC capabilities.
- Call Transcripts — Search through recent call logs, retrieve call details natively, and pull raw voice-to-text transcripts or conversation metrics.
- Persona Engineering — Ask your chat agent to build new Vapi assistants, update their system prompts, change its specific model, or mutate Voice IDs on the fly.
- Squad Routing — List available telephony numbers, tools, and multi-agent squads natively to configure advanced conversational pathways.
How it works
- Subscribe to this server
- Enter your Vapi Private API Key
- Start initiating and tracking phone calls from Claude, Cursor, or any MCP-compatible client
Your AI agent becomes a robust telephony dispatch center.
Who is this for?
- Sales Engineers — quickly tell the agent to place a demonstration outbound sales call to a prospect's number right from your editor.
- Customer Support Teams — pull the exact voice transcript logic from an unhappy customer call to summarize action items instantaneously.
- Voice AI Developers — tweak TTS voices, change LLM models, or rewrite system instructions for a new assistant iteratively without switching windows.
- Operations Managers — rapidly audit active telephony numbers and connected toolsets across different Vapi environments.
Built-in capabilities (10)
Provide configuration for transcriber, model, and voice as a JSON string. Create a new Voice AI assistant persona
Provide the phone number ID and customer details. Start a new outbound phone call via Vapi
Returns a web call configuration. Generate a new web-based voice call link
Retrieves details, transcripts, and metrics for a specific call
List all tools available to Vapi assistants
List all Voice AI assistants configured in Vapi
List recent and active voice calls managed by Vapi
List all phone numbers connected to Vapi
List all multi-agent squads
Update an existing assistant configuration
Why LlamaIndex?
LlamaIndex agents combine Vapi tool responses with indexed documents for comprehensive, grounded answers. Connect 10 tools through Vinkius and query live data alongside vector stores and SQL databases in a single turn. ideal for hybrid search, data enrichment, and analytical workflows.
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Data-first architecture: LlamaIndex agents combine Vapi tool responses with indexed documents for comprehensive, grounded answers
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Query pipeline framework lets you chain Vapi tool calls with transformations, filters, and re-rankers in a typed pipeline
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Multi-source reasoning: agents can query Vapi, a vector store, and a SQL database in a single turn and synthesize results
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Observability integrations show exactly what Vapi tools were called, what data was returned, and how it influenced the final answer
Vapi in LlamaIndex
Why run Vapi with Vinkius?
The Vapi connection runs on our fully managed, secure cloud infrastructure. We handle the hosting, maintenance, and security so you don't have to deal with servers or code. All 10 tools are ready to work instantly without any complex setup.
You stay in complete control of your data. Your AI only accesses the information you approve, keeping your sensitive passwords and private details completely safe. Plus, with automatic optimizations, your AI works faster and more efficiently.
* Every connection is hosted and maintained by Vinkius. We handle the security, updates, and infrastructure so you don't have to write code or manage servers. See our infrastructure
Over 4,000 integrations ready for AI agents
Explore a vast library of pre-built integrations, optimized and ready to deploy.
Connect securely in under 30 seconds
Generate tokens to authenticate and link external services in a single step.
Complete visibility into every agent action
Audit live requests, latency, success rates, and active security compliance policies.
Optimize spending and track token ROI
Analyze real-time token consumption and cost metrics detailed by connection.
Explore our live AI Agents Analytics dashboard to see it all working
This dashboard is included when you connect Vapi using Vinkius. You will never be left in the dark about what your AI agents are doing with your tools.
Vapi and 4,000+ other AI tools. No hosting, no code, ready to use.
Professionals who connect Vapi to LlamaIndex through Vinkius don't need to write code, manage servers, or worry about security. Everything is pre-configured, secure, and runs automatically in the background.
Raw MCP | Vinkius | |
|---|---|---|
| Ready-to-use MCPs | Find and configure each manually | 4,000+ MCPs ready to use |
| Connection Setup | Manual coding & server setup | 1-click instant connection |
| Server Hosting | You host it yourself (needs 24/7 uptime) | 100% hosted & managed by Vinkius |
| Security & Privacy | Stored in plaintext config files | Bank-grade encrypted vault |
| Activity Visibility | Blind execution (no logs or tracking) | Live dashboard with real-time logs |
| Cost Control | Runaway AI token spend risk | Automatic budget limits |
| Revoking Access | Must delete files or code to stop | 1-click disconnect button |
How Vinkius secures
Vapi for LlamaIndex
Every request between LlamaIndex and Vapi is protected by our secure gateway. We automatically keep your sensitive data private, prevent unauthorized access, and let you disconnect instantly at any time.
Frequently asked questions
Can the agent place an outbound phone call for me?
Yes! Through the createPhoneCallTool, you can ask your agent: Initiate a phone call to +15551234567 using our 'Sales Assistant' persona. It will format the payload correctly and instruct Vapi to dial the human using the specified AI persona.
How can I read the transcript of an old automated voice call?
Just tell your chat assistant: fetch the transcript details for call ID '3fbea5x...'. The getCallTool reaches into Vapi, extracts the raw audio-to-text transcript logs, and the assistant can even summarize the entire human-to-AI interaction for you.
Can I tweak system prompts or models sequentially in my chat editor?
Yes, especially if you're in an IDE like Cursor. You can iterate: Update Assistant 'Agent A' to use GPT-4o and set its prompt to 'Always be highly overly enthusiastic'. The agent will use the updateAssistantTool to reconfigure the live voice persona instantly.
How does LlamaIndex connect to MCP servers?
Use the MCP client adapter to create a connection. LlamaIndex discovers all tools and wraps them as query engine tools compatible with any LlamaIndex agent.
Can I combine MCP tools with vector stores?
Yes. LlamaIndex agents can query Vapi tools and vector store indexes in the same turn, combining real-time and embedded data for grounded responses.
Does LlamaIndex support async MCP calls?
Yes. LlamaIndex's async agent framework supports concurrent MCP tool calls for high-throughput data processing pipelines.
BasicMCPClient not found
Install: pip install llama-index-tools-mcp
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