langchain-agentphone 0.1.0

LangChain integration for AgentPhone — telephony tools for AI agents

langchain-agentphone

LangChain integration for AgentPhone — telephony tools that let LLM agents send SMS messages, make phone calls, and manage phone numbers.

Installation

pip install langchain-agentphone

Setup

Get your API key from agentphone.to and set it as an environment variable:

export AGENTPHONE_API_KEY="your-api-key"

Quick Start

Use all tools

from langchain_agentphone import AgentPhoneToolkit

toolkit = AgentPhoneToolkit()
tools = toolkit.get_tools()

Use specific tools

from langchain_agentphone import AgentPhoneToolkit

toolkit = AgentPhoneToolkit(selected_tools=["send_sms", "list_numbers"])
tools = toolkit.get_tools()

Use individual tools

from langchain_agentphone import AgentPhoneSendSMS

tool = AgentPhoneSendSMS()
result = tool.invoke({
    "number_id": "num_abc123",
    "to_number": "[phone]",
    "body": "Hello from LangChain!"
})

With a LangChain agent

from langchain_agentphone import AgentPhoneToolkit
from langchain_anthropic import ChatAnthropic
from langgraph.prebuilt import create_react_agent

llm = ChatAnthropic(model="claude-sonnet-4-20250514")
toolkit = AgentPhoneToolkit()
agent = create_react_agent(llm, toolkit.get_tools())

response = agent.invoke({
    "messages": [("user", "Send an SMS from number num_abc123 to [phone] saying hello")]
})

Available Tools

Tool	Name	Description
AgentPhoneSendSMS	agentphone_send_sms	Send an SMS message
AgentPhoneMakeCall	agentphone_make_call	Make an AI-powered outbound call
AgentPhoneGetTranscript	agentphone_get_transcript	Get a call transcript
AgentPhoneListCalls	agentphone_list_calls	List phone calls
AgentPhoneListConversations	agentphone_list_conversations	List SMS conversations
AgentPhoneGetConversation	agentphone_get_conversation	Get conversation with messages
AgentPhoneBuyNumber	agentphone_buy_number	Buy a phone number
AgentPhoneListNumbers	agentphone_list_numbers	List phone numbers
AgentPhoneCreateAgent	agentphone_create_agent	Create an AI phone agent
AgentPhoneListAgents	agentphone_list_agents	List AI phone agents
AgentPhoneCreateContact	agentphone_create_contact	Create a contact
AgentPhoneListContacts	agentphone_list_contacts	List contacts

API Reference

See the AgentPhone documentation for full API details.