Twilio Integration for AI Agents
Connect your AI agent to 59 QA'd Twilio actions via MCP, A2A, or SDK, with agent authentication, tool-calling execution, and security built-in, plus 20 events to subscribe to.
Twilio AI Agent Actions
59 production-ready actions for your agent to do more on Twilio.
59 Actions
List Messages - List all messages sent or received by your Twilio account
Get Message - Retrieve details of a specific message by SID
Create Message - Create a new SMS or MMS message
Update Message - Update a message (redact message body or cancel scheduled message)
Delete Message - Delete a message record
List Message Media - List all media associated with a message
Get Message Media - Retrieve details of a specific media item attached to a message
Delete Message Media - Delete a specific media instance
List Calls - List all calls made to and from your Twilio account
Get Call - Retrieve details of a specific call by SID
Make Call - Initiate an outbound call
Update Call - Modify an in-progress call (redirect, cancel, or complete)
Delete Call - Delete a call record
List Call Recordings - List all recordings for a specific call
Get Account - Retrieve account information and current status
List Accounts - List all accounts including the main account and subaccounts
Create Account - Create a new account under the main account
Update Account - Update account properties (friendly name or status)
List Conversations - List all conversations in your account
Get Conversation - Retrieve details of a specific conversation by SID
Create Conversation - Create a new conversation
Update Conversation - Update an existing conversation
Delete Conversation - Delete a conversation
List Conversation Messages - List all messages in a conversation
Get Conversation Message - Retrieve details of a specific message in a conversation
Create Conversation Message - Create a new message in a conversation
Update Conversation Message - Update an existing message in a conversation
Delete Conversation Message - Delete a message from a conversation
List Conversation Participants - List all participants in a conversation
Get Conversation Participant - Retrieve details of a specific participant in a conversation
Create Conversation Participant - Create a new participant in a conversation
Update Conversation Participant - Update a participant in a conversation
Delete Conversation Participant - Delete a participant from a conversation
List Conversation Users - List all users in the conversations service
Get Conversation User - Retrieve details of a specific user
Create Conversation User - Create a new user in the conversations service
Update Conversation User - Update an existing user
Delete Conversation User - Delete a user from the conversations service
List Conversation Webhooks - List all webhooks configured for a specific conversation
List User Conversations - List all conversations a specific user belongs to
Get Unified Credentials - Get the current Twilio Organizations connection's unified credentials and identity.
IAM Auth Test - Validate the current OAuth client_credentials token against the Twilio Organizations API and return the raw, unmapped Role API response (limited to 1 record). Bypasses the unified IAM credentials schema — use this for debugging token expiry, scope mismatches, or organizationSid mis-configuration, not for normal app flows.
List Unified Organizations - List unified organizations for the connected Twilio account.
Get Unified Organization - Get a unified Twilio organization by ID.
List Unified Roles - List unified roles in the connected Twilio Organization.
Get Unified Role - Get a unified Twilio Organization role by ID.
List Unified Users - List unified users in the connected Twilio Organization.
Get Unified User - Get a unified Twilio Organization user by ID.
Create Event Sink - Create a new Event Streams Sink (webhook destination) to receive Twilio events.
Get Event Sink - Retrieve details of a specific Event Streams Sink by SID.
List Event Sinks - List all Event Streams Sinks in the Twilio account.
Delete Event Sink - Delete an Event Streams Sink. The Sink must not be referenced by any active Subscriptions.
Create Event Subscription - Create a new Event Streams Subscription to link event types to a Sink.
Get Event Subscription - Retrieve details of a specific Event Streams Subscription by SID.
List Event Subscriptions - List all Event Streams Subscriptions in the Twilio account.
Delete Event Subscription - Delete an Event Streams Subscription. Events will stop being delivered to the associated Sink.
List Subscribed Events - List all event types subscribed under a specific Subscription.
List Event Types - List all available Twilio Event Streams event types.
Get Event Type - Retrieve details of a specific Event Streams event type.
Twilio Webhook Events
20 real-time Twilio events your AI agent can subscribe to.
20 Events
- Test Event Responds to Twilio Event Streams test events sent when validating a Sink endpoint.
- Message Delivered Emitted when an outbound message is successfully delivered to the recipient.
- Message Sent Emitted when an outbound message is accepted and queued by Twilio for delivery.
- Message Failed Emitted when an outbound message fails to deliver and will not be retried.
- Inbound Message Received Emitted when a message is received by a Twilio phone number or messaging resource.
- Call Summary Complete Emitted when a voice call summary is available via Twilio Voice Insights.
- Call Initiated Emitted when an outbound call is initiated.
- Call Ringing Emitted when an outbound call starts ringing at the destination.
- Call Answered Emitted when a voice call is answered.
- Call Completed Emitted when a voice call ends.
- Conversation Added Emitted when a new Twilio Conversation is created.
- Conversation Updated Emitted when a Twilio Conversation is updated (attributes, friendly name, etc.).
- Conversation Removed Emitted when a Twilio Conversation is deleted.
- Conversation State Updated Emitted when a Twilio Conversation state changes (active, inactive, closed).
- Conversation Message Added Emitted when a new message is added to a Twilio Conversation.
- Conversation Message Updated Emitted when a message in a Twilio Conversation is updated.
- Conversation Message Removed Emitted when a message is removed from a Twilio Conversation.
- Conversation Participant Added Emitted when a participant joins a Twilio Conversation.
- Conversation Participant Removed Emitted when a participant leaves or is removed from a Twilio Conversation.
- Conversation User Updated Emitted when a Conversations user's properties are updated.
Do More, Build Less
Integration Infrastructure for Twilio AI Agents
"What impressed us most about StackOne is its ambition and clarity. They're creating infrastructure that modern software and the entire AI agent ecosystem can rely on. The depth of secure integrations, the pace of delivery, and the team's foresight into AI's future uniquely position StackOne to redefine this category."
Luna Schmid, Partner at GV
"We've been impressed by how quickly and deeply StackOne integrates with complex enterprise systems -- and now, with their focus on agent-to-agent interoperability, they're unlocking even more powerful use cases for customers. StackOne delivers all of the above in a universal layer -- without compromise."
Barbry McGann, SVP at Workday Ventures
Product Teams Love Building Agent Integrations With StackOne
Connectors for workflow builders
Agentic Connectors
Scroll to explore
Twilio AI agent integration resources
Webhooks for AI agents: why agentic workflows need them purpose-built
AI agents can act the moment a system changes, using webhooks. But webhooks built for software hit three limits in agentic workflows. Here is how to fix each.
7 min read
Agentic Context Engineering: Why AI Agents Kill Their Own Context Windows
AI agents exceed their context windows without knowing it. Six failure patterns and seven survival architectures for agentic context engineering.
15 min
MCP Code Mode: Keeping Tool Responses Out of Agent Context
Anthropic's code_execution processes data already in context. Custom MCP code mode keeps raw tool responses in a sandbox. 14K tokens vs 500.
11 min
Comparing BM25, TF-IDF, and Hybrid Search for MCP Tool Discovery
Benchmarking BM25, TF-IDF, and hybrid search for MCP tool discovery across 916 tools. The 80/20 TF-IDF/BM25 hybrid hits 21% Top-1 accuracy in under 1ms.
10 min
Twilio integration FAQ
Do I need to create my own auth app to connect Twilio to StackOne?
No, you don't need an auth app. Twilio offers two no-auth-app methods: Account SID + Auth Token (copied from the Twilio Console dashboard) or a Standard API Key (created in Account Settings > API Keys). Paste the chosen credentials into the StackOne dashboard auth config for the Twilio connector. See the Twilio auth docs.
Put your AI agents to work
All the tools you need to build and scale AI agent integrations, with best-in-class connectivity, execution, and security.