Bring Webinars
to LlamaIndex
Learn how to connect ON24 to LlamaIndex and start using 12 AI agent tools in minutes. Fully managed, enterprise secure, and ready to use without writing a single line of code.
What is the ON24 MCP Server?
Connect your ON24 account to any AI agent and take full control of your digital event orchestration and audience engagement through natural conversation. ON24 is the leading platform for webinars and virtual environments, and this integration allows you to retrieve webinar metadata, manage attendee registrations, and analyze participation intelligence directly from your chat interface.
What you can do
- Webinar & Event Orchestration — List all managed webinars and retrieve detailed event metadata programmatically to ensure your digital marketing calendar is always synchronized.
- Registrant Lifecycle Management — Enroll new attendees and monitor registration lists directly from the AI interface to track campaign reach and conversion.
- Audience & Participation Intelligence — Access and monitor attendee analytics and elite-level engagement metadata via natural language to drive better event ROI.
- Hub & Experience Control — List your organization's hubs and target experiences using simple AI commands to maintain a clear overview of your digital presence.
- Operational Monitoring — Track system responses and manage survey metadata to ensure your attendee feedback loops are always optimized.
How it works
1. Subscribe to this server
2. Enter your ON24 Client ID, Access Token Key, and Access Token Secret from your integration settings
3. Start managing your virtual events from Claude, Cursor, or any MCP-compatible client
No more manual logging into dashboards to check registration counts. Your AI acts as a dedicated event manager or digital marketing coordinator.
Who is this for?
- Event Marketers — quickly retrieve registration summaries and monitor attendee engagement without switching apps.
- Demand Generation Teams — automate the retrieval of lead metadata and track conversion from digital events via natural conversation.
- Developers — integrate real-time webinar data and attendee analytics directly within the chat.
Built-in capabilities (12)
Create a new webinar
Check account status
Get attendee engagement data
Get high-level Elite analytics
Get webinar details
List recently deleted events
List Engagement Hubs
List webinar registrants
List survey answers
List Target experiences
List all webinars
Register a participant for a webinar
Why LlamaIndex?
LlamaIndex agents combine ON24 tool responses with indexed documents for comprehensive, grounded answers. Connect 12 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 ON24 tool responses with indexed documents for comprehensive, grounded answers
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Query pipeline framework lets you chain ON24 tool calls with transformations, filters, and re-rankers in a typed pipeline
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Multi-source reasoning: agents can query ON24, a vector store, and a SQL database in a single turn and synthesize results
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Observability integrations show exactly what ON24 tools were called, what data was returned, and how it influenced the final answer
ON24 in LlamaIndex
ON24 and 3,400+ other MCP servers. One platform. One governance layer.
Teams that connect ON24 to LlamaIndex through Vinkius don't need to source, host, or maintain individual MCP servers. Every tool call runs inside a hardened runtime with credential isolation, DLP, and a signed audit chain.
Raw MCP | Vinkius | |
|---|---|---|
| Server catalog | Find and host yourself | 3,400+ managed |
| Infrastructure | Self-hosted | Sandboxed V8 isolates |
| Credential handling | Plaintext in config | Vault + runtime injection |
| Data loss prevention | None | Configurable DLP policies |
| Kill switch | None | Global instant shutdown |
| Financial circuit breakers | None | Per-server limits + alerts |
| Audit trail | None | Ed25519 signed logs |
| SIEM log streaming | None | Splunk, Datadog, Webhook |
| Honeytokens | None | Canary alerts on leak |
| Custom domains | Not applicable | DNS challenge verified |
| GDPR compliance | Manual effort | Automated purge + export |
Why teams choose Vinkius for ON24 in LlamaIndex
The ON24 MCP Server runs on Vinkius-managed infrastructure inside AWS — a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts. All 12 tools execute in hardened sandboxes optimized for native MCP execution.
Your AI agents in LlamaIndex only access the data you authorize, with DLP that blocks sensitive information from ever reaching the model, kill switch for instant shutdown, and up to 60% token savings. Enterprise-grade infrastructure, zero maintenance.
* Every MCP server runs on Vinkius-managed infrastructure inside AWS - a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts optimized for native MCP execution. See our infrastructure
How Vinkius secures
ON24 for LlamaIndex
Every tool call from LlamaIndex to the ON24 MCP Server is protected by DLP redaction, cryptographic audit chains, V8 sandbox isolation, kill switch, and financial circuit breakers.
Frequently asked questions
Can my AI automatically find the registration count for a specific webinar?
Yes! Use the get_webinar tool with the Event ID. Your agent will respond with complete metadata for the webinar, including total registrants and event status in seconds.
How do I find my ON24 Client ID and Tokens?
Log into ON24, navigate to Platform Tools > Integrations > API Tokens, and click 'Provision a New API Access Token'. You will find your Client ID, Token Key, and Token Secret there.
Does this work with EU data centers?
This integration currently targets the primary ON24 API (api.on24.com). For EU-hosted accounts requiring api.eu.on24.com, ensure your Client ID is associated with the global integration gateway.
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 ON24 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.
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Install: pip install llama-index-tools-mcp