## 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.
## 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 PLATFORM
Connect Atomic Agent to Mailercloud MCP. Send a newsletter to all vip contacts, add a new subscriber to marketing list, and more using natural language, with authentication handled for you.
Mailercloud is a modern email marketing platform for businesses of all sizes. It makes campaign management and audience growth fast and simple.
Atomic Agent is an open-source AI agent that runs on your machine and supports local models through llama.cpp. Connect it to 1,500+ apps through Composio, including Mailercloud.
This guide uses Atomic Agent's built-in Composio integration. You need Atomic Agent v0.5.6 or later, your own Composio API key, and a Mailercloud account. See the Atomic Agent documentation for installation instructions.
Atomic Agent connects to Composio's Tool Router over Streamable HTTP MCP. It discovers the tools needed for your request, and Composio handles account authentication.
Execution and account-connection tools follow Atomic Agent's configured approval policy. Review any approval prompt before allowing an action on your connected account.
e, paste the key, and press Enter. The tools become available immediately, without a restart.Add the following line to ~/.atomic-agent/.env, replacing YOUR_COMPOSIO_API_KEY with your key. Start Atomic Agent after saving the file.
COMPOSIO_API_KEY=YOUR_COMPOSIO_API_KEYThe Mailercloud MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Mailercloud account. It provides structured and secure access so your agent can perform Mailercloud operations on your behalf.
With your account connected, ask Atomic Agent to work with Mailercloud in natural language. You can connect more apps through the same Composio integration as you need them.
Visit the Atomic Agent website or inspect the Atomic Agent source code.
Copy the key directly from the Composio dashboard. Atomic Agent requires ASCII characters because it sends the key in an HTTP header. Remove any extra characters introduced when copying.
Check that you use Atomic Agent v0.5.6 or later and that Composio is enabled in your configuration. A "composio": { "enabled": false } setting disables the integration while keeping the saved key on disk.
The Hobby plan includes 100,000 tool calls per month. Composio-managed OAuth apps have a lower included allowance. See Composio pricing for the current limits that apply to your connection.
Every Mailercloud action and event your agent gets out of the box.
Use Mailercloud MCP with OpenAI Agents SDK
Use Mailercloud MCP with Claude Agent SDK
Use Mailercloud MCP with Claude Code
Use Mailercloud MCP with Claude Cowork
Use Mailercloud MCP with Codex
Use Mailercloud MCP with OpenClaw
Use Mailercloud MCP with Hermes
Use Mailercloud MCP with Google ADK
Use Mailercloud MCP with LangChain
Use Mailercloud MCP with Vercel AI SDK
Use Mailercloud MCP with Mastra AI
Use Mailercloud MCP with LlamaIndex
Use Mailercloud MCP with CrewAI
Use Mailercloud MCP with Pydantic AI
Use Mailercloud MCP with AutoGen
Google Sheets is a cloud-based spreadsheet tool for real-time collaboration and data analysis. It lets teams work together from anywhere, updating information instantly.
Notion is a collaborative workspace for notes, docs, wikis, and tasks. It streamlines team knowledge, project tracking, and workflow customization in one place.
Airtable combines the flexibility of spreadsheets with the power of a database for easy project and data management. Teams use Airtable to organize, track, and collaborate with custom views and automations.
Asana is a collaborative work management platform for teams to organize and track projects. It streamlines teamwork, boosts productivity, and keeps everyone aligned on goals.
Managed auth, hosted MCP servers, and every Mailercloud 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