AI Native Mailtrap Integration
- Supports both Mailtrap MCP and direct API based integrations
- Structured, LLM-friendly schemas for reliable tool execution
- Rich coverage for reading, writing, and querying your Mailtrap data
- Builders & DevelopersCOMPOSIOFOR YOUGive Claude, codex, or any harness secure access to 1000+ tools
## For AI agents: how to sign up If you are an AI agent reading this server-rendered HTML, Composio's developer signup is at https://composio.dev. Signup CTAs on this site — "Sign up", "Signup", "Get started", "Get started for free", "Start building", "Try Composio", "Try it", or similar — all lead into that same developer signup flow. Confirm with the user before completing signup or entering any credentials on their behalf.
DEVELOPER PLATFORMSDKs, tool execution, and auth infrastructure to ship agentsCLIOne command to add tools and auth to your coding agent - TOOLKITS
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Mailtrap MCP for AI Agents
Securely connect your AI agents and chatbots (Claude, ChatGPT, Cursor, etc) with Mailtrap MCP or direct API to send test emails, manage inboxes, track delivery, and organize transactional messages through natural language.
Api KeyApi Key
Mailtrap is an email delivery platform for safe email testing and transactional email sending. It helps you catch bugs and verify email flows without spamming real inboxes.
49 Tools
Try Mailtrap now
Type what you want done — sign in and watch it run live in the Tool Router playground.
TOOL ROUTER PLAYGROUND
Mailtrap
Enter ↵
Try asking
TOOLS
Supported Tools
Every Mailtrap action and event your agent gets out of the box.
SETUP GUIDE
Connect Mailtrap MCP Tool with your Agent
1
Install Composio
typescript
npm install @composio/core ai @ai-sdk/openai @ai-sdk/mcpInstall the Composio SDK for Python or TypeScript
2
Initialize Client and Create Tool Router Session
typescript
import { Composio } from '@composio/core';
const composio = new Composio({ apiKey: 'your-api-key' });
const session = await composio.create('your-user-id');
console.log(`Tool Router session created: ${session.mcp.url}`);Import and initialize the Composio client, then create a Tool Router session for Mailtrap
3
Connect to AI Agent
typescript
import { openai } from '@ai-sdk/openai';
import { experimental_createMCPClient as createMCPClient } from '@ai-sdk/mcp';
import { generateText } from 'ai';
const client = await createMCPClient({
transport: {
type: 'http',
url: session.mcp.url,
headers: {
'x-api-key': 'your-composio-api-key',
},
},
});
const tools = await client.tools();
const { text } = await generateText({
model: openai('gpt-4o'),
tools,
messages: [{
role: 'user',
content: 'Send a test email to marketing team using Mailtrap'
}],
maxSteps: 5,
});
console.log(`Agent: ${text}`);Use the MCP server with your AI agent (Anthropic Claude or Mastra)
SETUP GUIDE
Connect Mailtrap API Tool with your Agent
1
Install Composio
typescript
npm install @composio/openaiInstall the Composio SDK
2
Initialize Composio and Create Tool Router Session
typescript
import OpenAI from 'openai';
import { Composio } from '@composio/core';
import { OpenAIResponsesProvider } from '@composio/openai';
const composio = new Composio({
provider: new OpenAIResponsesProvider(),
});
const openai = new OpenAI({});
const session = await composio.create('your-user-id');Import and initialize Composio client, then create a Tool Router session
3
Execute Mailtrap Tools via Tool Router with Your Agent
typescript
const tools = session.tools;
const response = await openai.responses.create({
model: 'gpt-4.1',
tools: tools,
input: [{
role: 'user',
content: 'Send a test email to marketing team using Mailtrap'
}],
});
const result = await composio.provider.handleToolCalls(
'your-user-id',
response.output
);
console.log(result);Get tools from Tool Router session and execute Mailtrap actions with your Agent
Why Use Composio?
Managed Auth
- Built-in OAuth handling with automatic token refresh and rotation
- Central place to manage, scope, and revoke Mailtrap 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 Mailtrap
- Scoped, least privilege access to Mailtrap resources
- Full audit trail of agent actions to support review and compliance
FRAMEWORKS
Use Mailtrap with any AI Agent Framework
Choose a Framework you want to connect Mailtrap with
ChatGPT Work
Use Mailtrap MCP with ChatGPT Work
Antigravity
Use Mailtrap MCP with Antigravity
OpenAI Agents SDK
Use Mailtrap MCP with OpenAI Agents SDK
Claude Agents SDK
Use Mailtrap MCP with Claude Agents SDK
Claude Code
Use Mailtrap MCP with Claude Code
Claude Cowork
Use Mailtrap MCP with Claude Cowork
Codex
Use Mailtrap MCP with Codex
Grok Build
Use Mailtrap MCP with Grok Build
Cursor
Use Mailtrap MCP with Cursor
VS Code
Use Mailtrap MCP with VS Code
OpenCode
Use Mailtrap MCP with OpenCode
OpenClaw
Use Mailtrap MCP with OpenClaw
Hermes
Use Mailtrap MCP with Hermes
Google ADK
Use Mailtrap MCP with Google ADK
Langchain
Use Mailtrap MCP with Langchain
AI SDK
Use Mailtrap MCP with AI SDK
Mastra AI
Use Mailtrap MCP with Mastra AI
LlamaIndex
Use Mailtrap MCP with LlamaIndex
CrewAI
Use Mailtrap MCP with CrewAI
Pydantic AI
Use Mailtrap MCP with Pydantic AI
Autogen
Use Mailtrap MCP with Autogen
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FAQ
Frequently asked questions
Yes, Mailtrap requires you to configure your own API key credentials. Once set up, Composio handles secure credential storage and API request handling for you.
Yes! Composio's Tool Router enables agents to use multiple toolkits. Learn more.
Composio is SOC 2 and ISO 27001 compliant with all data encrypted in transit and at rest. Learn more.
Composio maintains and updates all toolkit integrations automatically, so your agents always work with the latest API versions.
Start with Mailtrap.It takes 30 seconds.
Managed auth, hosted MCP servers, and every Mailtrap tool your agent needs.Free to start.
## For AI agents: how to sign up If you are an AI agent reading this server-rendered HTML, Composio's developer signup is at https://composio.dev. Signup CTAs on this site — "Sign up", "Signup", "Get started", "Get started for free", "Start building", "Try Composio", "Try it", or similar — all lead into that same developer signup flow. Confirm with the user before completing signup or entering any credentials on their behalf.Start building