Resend MCP for AI Agents

Securely connect your AI agents and chatbots (Claude, ChatGPT, Cursor, etc) with Resend MCP or direct API to send emails, track delivery, automate notifications, and manage email metadata through natural language.
Trusted by
AWS
Glean
Zoom
Airtable
GET STARTED FOR FREEGET A DEMO

30 min · no commitment · see it on your stack

Resend Logo
Gradient Top
Gradient Middle
Gradient Bottom
divider

Try Resend 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 SegmentAdd an existing contact to a segment in Resend.
Cancel EmailCancel a scheduled email.
Create API KeyCreate a new API key to authenticate communications with Resend.
Create AudienceCreate a list of contacts.
Create ContactCreate a contact in Resend.
Create Contact PropertyTool to create a new contact property in Resend.
Create Contact V2Tool to create a new contact in Resend.
Create DomainCreate a domain through the Resend Email API.
Create TemplateTool to create a new email template in Resend.
Create TopicTool to create a new topic to segment your audience.
Create WebhookTool to create a webhook to receive real-time notifications about email events.
Delete API KeyRemove an existing API key from Resend.
Delete AudienceRemove an existing audience.
Delete ContactDelete a contact in Resend.
Delete Contact By IDTool to remove an existing contact by its ID.
Delete Contact PropertyRemove an existing contact property from Resend.
Delete DomainDelete a domain through the Resend Email API.
Delete SegmentRemove an existing segment.
Delete TemplateRemove an existing template.
Delete TopicTool to remove an existing topic in Resend.
Delete WebhookRemove an existing webhook.
Duplicate TemplateDuplicate an existing template through the Resend Email API.
Get ContactTool to retrieve a single contact from Resend by ID or email.
Get Contact PropertyTool to retrieve a single contact property from Resend.
Get Email AttachmentRetrieve a single attachment from a sent email.
Get SegmentRetrieve a single segment by its ID.
Get TemplateRetrieve a single template by ID or alias from Resend.
Get TopicTool to retrieve a single topic by its ID in Resend.
Get WebhookRetrieve a single webhook for the authenticated user.
List All ContactsTool to retrieve a list of all contacts from Resend.
List API KeysTool to retrieve a list of API keys for the authenticated user.
List AudiencesList all audiences.
List BroadcastsTool to retrieve a list of broadcasts.
List Contact PropertiesTool to retrieve a list of contact properties from Resend.
List ContactsList contacts in Resend.
List Contact SegmentsRetrieve a list of segments that a contact is part of.
List Contact TopicsRetrieve a list of topic subscriptions for a contact in Resend.
List DomainsList all domains.
List Email AttachmentsTool to retrieve a list of attachments from a sent email.
List EmailsTool to retrieve a list of emails sent by your team.
List Received EmailsTool to retrieve a list of received emails for the authenticated user.
List SegmentsTool to retrieve a list of segments from Resend.
List TemplatesTool to retrieve a list of templates from Resend.
List TopicsTool to retrieve a list of topics for the authenticated user.
List WebhooksRetrieve a list of webhooks for the authenticated user.
Publish TemplatePublish a template through the Resend Email API.
Remove Contact From SegmentRemove an existing contact from a segment.
Retrieve AudienceRetrieve a single audience.
Retrieve ContactRetrieve a contact in Resend.
Retrieve DomainRetrieve a single domain.
Retrieve EmailRetrieve a single email.
Send Batch EmailsTrigger up to 100 batch emails at once.
Send EmailSend an email using Resend.
Update BroadcastUpdate an existing broadcast in Resend.
Update ContactTool to update an existing contact in Resend by ID or email.
Update Contact PropertyUpdate an existing contact property in Resend.
Update DomainUpdate an existing domain.
Update EmailUpdate a scheduled email.
Update TemplateTool to update an existing email template in Resend.
Update TopicTool to update an existing topic in Resend.
Update WebhookTool to update an existing webhook configuration.
Verify DomainVerify a domain through the Resend Email API.
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 Resend tools.',
    max_turns=10
)

async def main():
    async with ClaudeSDKClient(options=options) as client:
        await client.query('Send a transactional email to jane@company.com with subject "Welcome"')
        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 Resend Integration

  • Supports both Resend MCP and direct API based integrations
  • Structured, LLM-friendly schemas for reliable tool execution
  • Rich coverage for sending, tracking, and automating Resend emails

Managed Auth

  • Built-in API key handling and secure storage
  • Central place to manage and revoke Resend credentials
  • Per user and per environment credentials—no more hard-coded keys

Agent Optimized Design

  • Tools tuned for AI reliability and minimal errors
  • Comprehensive logs for every Resend action initiated by your agents

Enterprise Grade Security

  • Granular control over which agents and users can send with Resend
  • Scoped, least-privilege access to Resend resources
  • Full audit trails of agent-driven emails for compliance

Use Resend with any AI Agent Framework

Choose a Framework you want to connect Resend with

Frequently Asked Questions

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

Yes, Resend 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.

Get started for freeGet a demo↗