dial-crewai

Official Dial tools for CrewAI — give a multi-agent crew the ability to send SMS, receive OTP codes, and place AI voice calls through Dial. Agents automating signups and web tasks get a real phone identity.

It's the CrewAI sibling of dial-langchain: each tool is a crewai.tools.BaseTool subclass wrapping the dial-sdk client. It adds nothing to the REST contract — it just shapes Dial's operations into CrewAI tools.

Install

pip install dial-crewai

This pulls in dial-sdk and crewai.

Give the tools to a crew

Build one DialClient, pass it to dial_tools, and hand the list to an agent. Every tool shares that one client — a single connection pool for the whole crew:

from crewai import Agent, Crew, Task
from dial_sdk import DialClient, DialConfig
from dial_crewai import dial_tools

dial = DialClient(DialConfig(api_key="sk_live_..."))

phone_agent = Agent(
    role="Phone identity agent",
    goal="Send and receive SMS so the crew can complete phone-verified signups",
    backstory="You operate the crew's Dial phone number.",
    tools=dial_tools(dial),
)

DialConfig also takes an optional base_url to target a non-default deployment.

Or pick individual tools

from dial_crewai import SendMessageTool, WaitForMessageTool

tools = [
    SendMessageTool(client=dial),
    WaitForMessageTool(client=dial),
]

Available tools

Each tool takes your shared DialClient (client=):

Tool Action
ListNumbersTool List your phone numbers
PurchaseNumberTool Provision a new number (billable)
SetNumberPropertiesTool Update a number's nickname / inbound instruction
SendMessageTool Send an SMS (optionally MMS)
ReplyToMessageTool Reply or react to a message
ListMessagesTool List recent messages
MakeCallTool Place an AI voice call
ListCallsTool List recent calls
GetCallTool Fetch one call by id
GetBillingTool Credit balance, subscription, per-number mode
WaitForMessageTool Block until the next inbound SMS arrives, or time out

OTP flow

The point of phone identity for a crew: send a code and read the reply. WaitForMessageTool blocks until the next inbound SMS arrives, so an agent can:

  1. trigger a signup that texts a code to your Dial number,
  2. call WaitForMessageTool to read the inbound code,
  3. enter it back into the signup form.

See examples/signup_crew.py for a runnable crew.

Notes

  • The dial-sdk client is async; these tools are sync-first (_run) with an async→sync bridge, and also expose _arun for async crews. The shared client's requests run on a single background event loop, so the connection pool is reused across calls; a sync crew needn't close the client explicitly.
  • SendMessageTool is a write action and isn't idempotent — a re-invoke after a failure can send a duplicate. MakeCallTool accepts an idempotency_key.
  • WaitForMessageTool is backed by Dial's presence-based event stream — for durable, at-least-once delivery, register a webhook.

See the CrewAI integration docs for the full guide.

Key dates

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Owner

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Requires

Python >=3.11

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