Reply io MCP for AI Agents

Securely connect your AI agents and chatbots (Claude, ChatGPT, Cursor, etc) with Reply io MCP or direct API to automate sales outreach, track lead engagement, send follow-ups, and optimize pipeline activity through natural language.
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Try Reply io now

Enter a prompt below to test the integration in our Tool Router playground. You'll be redirected to sign in and try it live.

Supported Tools

Tools
Add Contact to SequenceMove an existing contact to a sequence in Reply.
Archive SequenceTool to archive a sequence.
Clear Contact StatusTool to clear statuses from contacts.
Connect Exchange Account via OAuthTool to initiate OAuth connection for an Exchange email account.
Connect Gmail AccountTool to initiate Gmail account connection via OAuth.
Create ContactTool to create a new contact in Reply.
Create Sequence StepTool to add a new step to an existing sequence.
Delete ContactTool to delete a contact.
Delete Email AccountTool to delete a specific email account.
Delete ScheduleTool to delete a schedule.
Delete SequenceTool to delete a sequence.
Delete UserTool to delete a user.
Generate ULIDGenerate ULID
Get Contact by IDTool to retrieve a contact by ID.
Get Contact StatusTool to get contact status.
Get Current UserTool to get the current authenticated user's ID.
Reply.io Get Disconnected Email AccountsTool to list email accounts that are currently disconnected due to authentication or connection errors.
Get Sequence By IDTool to retrieve detailed information about a sequence by its ID.
Get Sequence Contacts ExtendedTool to retrieve all contacts enrolled in a sequence with additional details.
Get Sequence Step by IDTool to retrieve details of a specific sequence step.
List Contacts BasicTool to list contacts.
Reply.io List Email AccountsTool to list all email accounts.
Reply.io List ListsTool to list all contact lists.
List SequencesTool to retrieve a paginated list of sequences.
List Sequence StepsTool to retrieve all steps in a sequence.
Pause SequenceTool to pause a running sequence.
Remove Contact From SequenceTool to remove a contact from a sequence.
Bulk Remove Contacts from SequenceTool to bulk remove multiple contacts from a sequence at once.
Search Contacts by EmailTool to search contacts by email.
Set Contact StatusTool to set the status of one or more contacts.
Start SequenceTool to start a sequence.
Update ContactTool to update an existing contact's information.
Update Email AccountTool to update an existing email account with custom SMTP/IMAP settings.
Python
TypeScript

Install Composio

python
pip install composio claude-agent-sdk
Install the Composio SDK and Claude Agent SDK

Create Tool Router Session

python
from composio import Composio
from claude_agent_sdk import ClaudeSDKClient, ClaudeAgentOptions

composio = Composio(api_key='your-composio-api-key')
session = composio.create(user_id='your-user-id')
url = session.mcp.url
Initialize the Composio client and create a Tool Router session

Connect to AI Agent

python
import asyncio

options = ClaudeAgentOptions(
    permission_mode='bypassPermissions',
    mcp_servers={
        'tool_router': {
            'type': 'http',
            'url': url,
            'headers': {
                'x-api-key': 'your-composio-api-key'
            }
        }
    },
    system_prompt='You are a helpful assistant with access to Reply io tools.',
    max_turns=10
)

async def main():
    async with ClaudeSDKClient(options=options) as client:
        await client.query('List all campaigns in my Reply io account')
        async for message in client.receive_response():
            if hasattr(message, 'content'):
                for block in message.content:
                    if hasattr(block, 'text'):
                        print(block.text)

asyncio.run(main())
Use the MCP server with your AI agent

Why Use Composio?

AI Native Reply io Integration

  • Supports both Reply io MCP and direct API based integrations
  • Structured, LLM-friendly schemas for reliable tool execution
  • Rich coverage for reading, writing, and querying your Reply io data

Managed Auth

  • Built-in OAuth handling with automatic token refresh and rotation
  • Central place to manage, scope, and revoke Reply io access
  • Per user and per environment credentials instead of hard-coded keys

Agent Optimized Design

  • Tools are tuned using real error and success rates to improve reliability over time
  • Comprehensive execution logs so you always know what ran, when, and on whose behalf

Enterprise Grade Security

  • Fine-grained RBAC so you control which agents and users can access Reply io
  • Scoped, least privilege access to Reply io resources
  • Full audit trail of agent actions to support review and compliance

Use Reply io with any AI Agent Framework

Choose a Framework you want to connect Reply io with

Frequently Asked Questions

Do I need my own developer credentials to use Reply io with Composio?

Yes, Reply io requires you to configure your own API key credentials. Once set up, Composio handles secure credential storage and API request handling for you.

Can I use multiple toolkits together?

Yes! Composio's Tool Router enables agents to use multiple toolkits. Learn more.

Is Composio secure?

Composio is SOC 2 and ISO 27001 compliant with all data encrypted in transit and at rest. Learn more.

What if the API changes?

Composio maintains and updates all toolkit integrations automatically, so your agents always work with the latest API versions.

Used by agents from

Context
Letta
glean
HubSpot
Agent.ai
Altera
DataStax
Entelligence
Rolai
Context
Letta
glean
HubSpot
Agent.ai
Altera
DataStax
Entelligence
Rolai
Context
Letta
glean
HubSpot
Agent.ai
Altera
DataStax
Entelligence
Rolai

Never worry about agent reliability

We handle tool reliability, observability, and security so you never have to second-guess an agent action.

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