# Sendlane

```json
{
  "name": "Sendlane",
  "slug": "sendlane",
  "url": "https://composio.dev/toolkits/sendlane",
  "markdown_url": "https://composio.dev/toolkits/sendlane.md",
  "logo_url": "https://logos.composio.dev/api/sendlane",
  "categories": [
    "marketing & social media"
  ],
  "is_composio_managed": false,
  "updated_at": "2026-10-12T12:45:23.324Z"
}
```

![Sendlane logo](https://logos.composio.dev/api/sendlane)

## Description

Securely connect your AI agents and chatbots (Claude, ChatGPT, Cursor, etc) with Sendlane MCP or direct API to send campaigns, manage subscribers, track marketing analytics, and automate audience segmentation through natural language.

## Summary

Sendlane is a cloud-based platform for email and SMS marketing automation. It helps eCommerce businesses engage customers through personalized campaigns.

## Categories

- marketing & social media

## Toolkit Details

- Tools: 6

## Images

- Logo: https://logos.composio.dev/api/sendlane

## Authentication

- **Api Key**
  - Type: `api_key`
  - Description: Api Key authentication for Sendlane.
  - Setup:
    - Configure Api Key credentials for Sendlane.
    - Use the credentials when creating an auth config in Composio.

## Suggested Prompts

- Show all available Sendlane custom fields
- Create a new email list for promotions
- List custom fields with pagination details
- Set up a new subscriber list for summer sale

## Supported Tools

| Tool slug | Name | Description |
|---|---|---|
| `SENDLANE_GET_CAMPAIGNS` | Get Campaigns | Tool to retrieve a list of email campaigns. Use when you need to fetch all campaigns with optional pagination. |
| `SENDLANE_GET_CUSTOM_FIELDS` | Get Custom Fields | Retrieve a list of all custom fields in your Sendlane account. Custom fields allow you to store additional contact information beyond the standard fields. Use this tool to discover available custom fields, their IDs, names, tags, and types before creating or updating contacts with custom field data. Supports optional pagination via page and per_page parameters. |
| `SENDLANE_GET_LISTS` | Get Lists | Tool to retrieve all mailing lists. Use when you need to fetch or display all available contact lists with optional pagination. |
| `SENDLANE_LIST_DELETE` | Delete List | Tool to delete a mailing list. Use when you need to remove an unwanted list after confirming its list_id. |
| `SENDLANE_POST_LIST` | Create List | Tool to create a new list. Use when you need to add a brand-new mailing list before sending campaigns. |
| `SENDLANE_TAG_CREATE` | Create Tag | Tool to create a new tag. Use when you need to segment subscribers using labels. |

## Supported Triggers

None listed.

## Installation and MCP Setup

### Path 1: SDK Installation

#### Path 1, Step 1: Install Composio

Install the Composio SDK, the OpenAI provider, and the OpenAI SDK
```python
pip install composio composio_openai openai
```

```typescript
npm install @composio/core @composio/openai openai
```

#### Path 1, Step 2: Create a Composio session

Initialize Composio with the OpenAI Responses provider and create a session scoped to Sendlane
```python
import json
from openai import OpenAI
from composio import Composio
from composio_openai import OpenAIResponsesProvider

composio = Composio(provider=OpenAIResponsesProvider())
client = OpenAI()

session = composio.create(user_id="your-user-id", toolkits=["sendlane"])
tools = session.tools()
```

```typescript
import OpenAI from "openai";
import { Composio } from "@composio/core";
import { OpenAIResponsesProvider } from "@composio/openai";

const composio = new Composio({ provider: new OpenAIResponsesProvider() });
const client = new OpenAI();

const session = await composio.create("your-user-id", { toolkits: ["sendlane"] });
const tools = await session.tools();
```

#### Path 1, Step 3: Run Sendlane tools with your agent

Send a request, execute the Sendlane tool calls through the session, and print the final answer
```python
response = client.responses.create(
    model="gpt-5.6-sol",
    tools=tools,
    input=[{"role": "user", "content": "Create a new subscriber list for holiday campaigns"}],
)

while True:
    tool_calls = [o for o in response.output if o.type == "function_call"]
    if not tool_calls:
        break
    results = composio.provider.handle_tool_calls(response=response, session=session)
    response = client.responses.create(
        model="gpt-5.6-sol",
        tools=tools,
        previous_response_id=response.id,
        input=[
            {"type": "function_call_output", "call_id": call.call_id, "output": json.dumps(results[i])}
            for i, call in enumerate(tool_calls)
        ],
    )

print(response.output_text)
```

```typescript
let response = await client.responses.create({
  model: "gpt-5.6-sol",
  tools,
  input: [{ role: "user", content: "Create a new subscriber list for holiday campaigns" }],
});

while (response.output.some((o) => o.type === "function_call")) {
  const outputs = await composio.provider.handleToolCalls(session, response.output);
  response = await client.responses.create({
    model: "gpt-5.6-sol",
    tools,
    previous_response_id: response.id,
    input: outputs,
  });
}

console.log(response.output_text);
```

### Path 2: MCP Server Setup

#### Path 2, Step 1: Install Composio

Install the Composio SDK and your agent framework
```python
pip install composio claude-agent-sdk
```

```typescript
npm install @composio/core ai @ai-sdk/mcp @ai-sdk/openai
```

#### Path 2, Step 2: Create a session with MCP enabled

Create a session scoped to Sendlane and read its MCP URL and headers
```python
from composio import Composio

composio = Composio()
session = composio.create(user_id="your-user-id", toolkits=["sendlane"], mcp=True)
```

```typescript
import { Composio } from "@composio/core";

const composio = new Composio();
const { mcp } = await composio.create("your-user-id", {
  toolkits: ["sendlane"],
  mcp: true,
});
```

#### Path 2, Step 3: Connect your agent to the MCP server

Pass the session's MCP URL and headers to your agent and run a Sendlane request
```python
import asyncio
from claude_agent_sdk import ClaudeSDKClient, ClaudeAgentOptions, AssistantMessage, TextBlock

options = ClaudeAgentOptions(
    mcp_servers={
        "composio": {
            "type": "http",
            "url": session.mcp.url,
            "headers": session.mcp.headers,
        }
    },
    system_prompt="You are a helpful assistant with access to Sendlane tools.",
    tools=[],
    allowed_tools=["mcp__composio__*"],
)

async def main():
    async with ClaudeSDKClient(options=options) as client:
        await client.query("Create a new subscriber list for holiday campaigns")
        async for message in client.receive_response():
            if isinstance(message, AssistantMessage):
                for block in message.content:
                    if isinstance(block, TextBlock):
                        print(block.text)

asyncio.run(main())
```

```typescript
import { createMCPClient } from "@ai-sdk/mcp";
import { openai } from "@ai-sdk/openai";
import { generateText, stepCountIs } from "ai";

const client = await createMCPClient({
  transport: { type: "http", url: mcp.url, headers: mcp.headers },
});

const { text } = await generateText({
  model: openai("gpt-5.6-sol"),
  tools: await client.tools(),
  prompt: "Create a new subscriber list for holiday campaigns",
  stopWhen: stepCountIs(10),
});

console.log(text);
await client.close();
```

## Why Use Composio?

### 1. AI Native Sendlane Integration

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

### 2. Managed Auth

- Built-in API key handling with secure storage
- Central place to manage, scope, and revoke Sendlane access
- Per user and per environment credentials instead of hard-coded keys

### 3. 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

### 4. Enterprise Grade Security

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

## Use Sendlane with any AI Agent Framework

Choose a framework you want to connect Sendlane with:

- [Claude Code](https://composio.dev/toolkits/sendlane/framework/claude-code)
- [Claude Cowork](https://composio.dev/toolkits/sendlane/framework/claude-cowork)
- [OpenAI Agents SDK](https://composio.dev/toolkits/sendlane/framework/open-ai-agents-sdk)
- [Claude Agent SDK](https://composio.dev/toolkits/sendlane/framework/claude-agents-sdk)
- [Codex](https://composio.dev/toolkits/sendlane/framework/codex)
- [OpenClaw](https://composio.dev/toolkits/sendlane/framework/openclaw)
- [Hermes](https://composio.dev/toolkits/sendlane/framework/hermes-agent)
- [Atomic Agent](https://composio.dev/toolkits/sendlane/framework/atomic-agent)
- [Google ADK](https://composio.dev/toolkits/sendlane/framework/google-adk)
- [LangChain](https://composio.dev/toolkits/sendlane/framework/langchain)
- [Vercel AI SDK](https://composio.dev/toolkits/sendlane/framework/ai-sdk)
- [Mastra AI](https://composio.dev/toolkits/sendlane/framework/mastra-ai)
- [LlamaIndex](https://composio.dev/toolkits/sendlane/framework/llama-index)
- [CrewAI](https://composio.dev/toolkits/sendlane/framework/crew-ai)
- [Pydantic AI](https://composio.dev/toolkits/sendlane/framework/pydantic-ai)
- [AutoGen](https://composio.dev/toolkits/sendlane/framework/autogen)

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## Frequently Asked Questions

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

Yes, Sendlane 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](https://docs.composio.dev/tool-router/overview).

### Is Composio secure?

Composio is SOC 2 and ISO 27001 compliant with all data encrypted in transit and at rest. [Learn more](https://trust.composio.dev).

### What if the API changes?

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

---
[See all toolkits](https://composio.dev/toolkits) · [Composio docs](https://docs.composio.dev/llms.txt)