#how to send data from zapier to eleven labs conversational ai agent
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Short answer: there isn’t a first‑party “Zapier → live agent” push endpoint documented. The supported ways to move data between Zapier and an ElevenLabs Conversational AI agent are:
- Let your agent call Zapier during the conversation (recommended)
- Add Zapier’s MCP server as a tool source in ElevenLabs, then attach it to your agent. Your agent can pass arguments collected in conversation to Zapier actions in real time.
- Where to set this up: ElevenLabs Zapier MCP integration page and the MCP integration guide (add MCP server URL in the ElevenLabs dashboard, approve tools, and attach to the agent). (elevenlabs.io)
- Provide data to the agent at conversation start
- Pass dynamic variables when you initiate a session over the agent WebSocket (conversation_initiation_client_data → dynamic_variables). (elevenlabs.io)
- If you embed the agent widget, inject dynamic-variables in the HTML attributes. (elevenlabs.io)
- For outbound phone campaigns, include columns in your recipient list; these are forwarded to the agent as dynamic variables (e.g., name, user_name). You can do this via the dashboard or by calling the Submit Batch Calling Job API from a Zap. (elevenlabs.io)
- Send data during a conversation (requires a small relay you host)
- The documented way to inject mid‑call context is to send client‑to‑server events over the agent WebSocket. Supported events include:
- contextual_update (adds background context without interrupting flow)
- user_message (injects a text turn as if spoken)
- Implement a minimal HTTPS endpoint that your Zap calls; that endpoint maintains the WebSocket to the agent and forwards Zap payloads as contextual_update or user_message. See the event schemas and the agent WebSocket endpoint in the docs. (elevenlabs.io)
Related notes
- Tools overview (client tools, webhooks, system tools) for enhancing agents. (help.elevenlabs.io)
- If your agent needs to act after calls (the opposite direction), enable post‑call webhooks. (elevenlabs.io)
If you share which direction you need (Zap populating variables before a call, Zap triggering outbound calls, or Zap updating a live session), I can map it to the exact API calls or dashboard steps from the docs above.
Sources:
Connect Zapier to ElevenLabs Conversational AI Voice Agents | ElevenLabs
Agent WebSockets | ElevenLabs Documentation
Widget customization | ElevenLabs Documentation
Batch calling | ElevenLabs Documentation
Client to server events | ElevenLabs Documentation
How to use tools with Conversational AI? – ElevenLabs
Post-call webhooks | ElevenLabs Documentation
zap populating variable before a answering a call
Short answer: Yes—populate variables before the agent answers by using ElevenLabs’ Twilio “conversation initiation” webhook. When an inbound call arrives, ElevenLabs POSTs call metadata to your webhook while the line is connecting; your webhook must synchronously return conversation_initiation_client_data that includes dynamic_variables (and optional overrides). Those values are applied before the agent speaks. See details and schema below.
How to do it
- Enable: In your agent’s Security tab, turn on “Fetch conversation initiation data for inbound Twilio calls.” Configure the webhook URL in Conversational AI settings. (elevenlabs.io)
- Implement webhook: Accept POST with caller_id, agent_id, called_number, call_sid. Respond immediately with JSON in the conversation_initiation_client_data shape (example fields shown below). (elevenlabs.io)
- Provide variables: Put all required dynamic variables under dynamic_variables; use overrides only if you’ve enabled them. Missing required variables will cause the call to fail. (elevenlabs.io, help.elevenlabs.io)
Minimal response example (your webhook must return this JSON body)
{
"type": "conversation_initiation_client_data",
"dynamic_variables": {
"customer_name": "Ada Lovelace",
"account_tier": "pro"
},
"conversation_config_override": {
"agent": { "first_message": "Hi Ada, how can I help today?" }
}
}
Schema and full options are documented here. (elevenlabs.io)
About Zapier
- Pre-answer variable population: Use the Twilio initiation webhook described above; any platform that can receive a POST and return JSON synchronously will work. (elevenlabs.io)
- During-call actions: If you want the agent to execute Zapier actions in real time during the conversation (not just at answer), use the official Zapier MCP integration. (elevenlabs.io)
Related references
- Dynamic variables (usage, URL methods for web, system variables list). (elevenlabs.io)
- Troubleshooting failed calls (e.g., “Missing required dynamic variables …”). (help.elevenlabs.io)
If you share which variables you need to set and whether your inbound telephony is Twilio or SIP, I can point you to the exact fields
will I use the same webhook url to send the twilio data from eleven labs to zapier and to return the zapier data to eleven labs?