Provision numbers, send SMS and iMessage, and place voice calls with AgentPhone
AgentPhone is a Sim integration in the Communication category. Sim is the AI workspace where teams build and deploy AI agents. Sim's AgentPhone integration provides 22 tools that AI agents can use inside Sim's visual workflow builder. AgentPhone connects with an API key. Free to start at sim.ai.
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Give your workflow a phone. Provision SMS- and voice-enabled numbers, send messages and tapback reactions, place outbound voice calls, manage conversations and contacts, and track usage — all through a single AgentPhone API key.
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Open your workspace, drag an AgentPhone block onto the workflow builder, and paste in your AgentPhone API key.
Pick the tool you need, wire in an AI agent for reasoning or data transformation, and run. Your AgentPhone automation is live.
Ready-to-use templates featuring AgentPhone. Click any to build it instantly.
22 AgentPhone tools available to Sim agents.
Provision a new SMS- and voice-enabled phone number
List all phone numbers provisioned for this AgentPhone account
Release (delete) a phone number. This action is irreversible.
Fetch messages received on a specific phone number
Initiate an outbound voice call from an AgentPhone agent
List voice calls for this AgentPhone account
Fetch a call and its full transcript
Get the full ordered transcript for a call
List conversations (message threads) for this AgentPhone account
Get a conversation along with its recent messages
Update conversation metadata (stored state). Pass null to clear existing metadata.
Get paginated messages for a conversation
Send an outbound SMS or iMessage from an AgentPhone agent
Send an iMessage tapback reaction to a message (iMessage only)
Create a new contact in AgentPhone
List contacts for this AgentPhone account
Fetch a single contact by ID
Update a contact's fields
Delete a contact by ID
Retrieve current usage statistics for the AgentPhone account
Get a daily breakdown of usage (messages, calls, webhooks) for the last N days
Get monthly usage aggregation (messages, calls, webhooks) for the last N months
Sim's AgentPhone integration adds 22 tools to the AI agents you build in Sim's visual workflow builder. Provision numbers, send SMS and iMessage, and place voice calls with AgentPhone.
