# How to integrate Cardly MCP with Atomic Agent ```json { "title": "How to integrate Cardly MCP with Atomic Agent", "toolkit": "Cardly", "toolkit_slug": "cardly", "framework": "Atomic Agent", "framework_slug": "atomic-agent", "url": "https://composio.dev/toolkits/cardly/framework/atomic-agent", "markdown_url": "https://composio.dev/toolkits/cardly/framework/atomic-agent.md", "updated_at": "2026-08-11T13:07:33.931Z" } ``` ## Introduction 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 Cardly. 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 Cardly account. See the [Atomic Agent documentation](https://atomicagent.io/docs/?cta_placement=atomic-agent-docs) for installation instructions. ## Also integrate Cardly with - [OpenAI Agents SDK](https://composio.dev/toolkits/cardly/framework/open-ai-agents-sdk) - [Claude Agent SDK](https://composio.dev/toolkits/cardly/framework/claude-agents-sdk) - [Claude Code](https://composio.dev/toolkits/cardly/framework/claude-code) - [Claude Cowork](https://composio.dev/toolkits/cardly/framework/claude-cowork) - [Codex](https://composio.dev/toolkits/cardly/framework/codex) - [OpenClaw](https://composio.dev/toolkits/cardly/framework/openclaw) - [Hermes](https://composio.dev/toolkits/cardly/framework/hermes-agent) - [Google ADK](https://composio.dev/toolkits/cardly/framework/google-adk) - [LangChain](https://composio.dev/toolkits/cardly/framework/langchain) - [Vercel AI SDK](https://composio.dev/toolkits/cardly/framework/ai-sdk) - [Mastra AI](https://composio.dev/toolkits/cardly/framework/mastra-ai) - [LlamaIndex](https://composio.dev/toolkits/cardly/framework/llama-index) - [CrewAI](https://composio.dev/toolkits/cardly/framework/crew-ai) - [Pydantic AI](https://composio.dev/toolkits/cardly/framework/pydantic-ai) - [AutoGen](https://composio.dev/toolkits/cardly/framework/autogen) ## TL;DR ### How Atomic Agent connects to Cardly 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. ## Connect Cardly to Atomic Agent ### Connect Cardly to Atomic Agent - Sign up or sign in to the [Composio dashboard](https://dashboard.composio.dev/?cta_placement=atomic-agent-api-key). Copy your API key. - In Atomic Agent, open the Integrations tab and select Composio. Select API key, press e, paste the key, and press Enter. The tools become available immediately, without a restart. - Ask Atomic Agent to do something in Cardly. It searches Composio for the right tool. - On first use, open the sign-in link returned in the chat. Connect your Cardly account, then return to Atomic Agent to continue. ### Headless setup Add the following line to ~/.atomic-agent/.env, replacing YOUR_COMPOSIO_API_KEY with your key. Start Atomic Agent after saving the file. ```bash COMPOSIO_API_KEY=YOUR_COMPOSIO_API_KEY ``` ## What is the Cardly MCP server, and what's possible with it? The Cardly MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Cardly account. It provides structured and secure access to your Cardly workspace, so your agent can create contact lists, generate card previews, manage invitations, and access artwork or credit history for seamless customer engagement tasks. - Automated contact list creation and management: Easily instruct your agent to set up new contact lists or manage existing ones, streamlining outreach campaigns and personalized mailings. - Card preview generation and artwork browsing: Let your agent generate watermarked card previews and browse available artwork to help you select the right designs before sending mailers. - Real-time credit and gift history access: Ask your agent to fetch your credit or gift credit history so you always know your account status and can track usage or plan new campaigns. - Invitation and webhook management: Direct your agent to handle invitations—listing, deleting, or auditing user invites—or manage webhooks for seamless integration with other systems. - Font and design asset exploration: Have your agent list available fonts and artwork, making it easier to choose creative assets for your next customer engagement initiative. ## Supported Tools | Tool slug | Name | Description | |---|---|---| | `CARDLY_CREATE_CONTACT_LIST` | Create Contact List | Tool to add a new contact list. Use after defining name and optional custom fields, before populating the list with contacts. | | `CARDLY_CREATE_INVITATION` | Create Invitation | Tool to send an invitation to use your organisation portal. Use when you need to grant access to a new user by their email address. If the email already has access, the API will return an appropriate error. | | `CARDLY_CREATE_WEBHOOK` | Create Webhook | Tool to create a new webhook subscription. Use when you need Cardly to notify your application via HTTP POST for specific events. | | `CARDLY_DELETE_INVITATION` | Delete Invitation | Tool to delete an invitation by unique ID, immediately invalidating it for acceptance. Use when you need to revoke a pending invitation using its ID. | | `CARDLY_DELETE_INVITATION_BY_EMAIL` | Delete Invitation by Email | Deletes a pending invitation by email address, immediately invalidating it and preventing acceptance. This action is idempotent - deleting a non-existent invitation returns success. Use when you need to revoke access before an invitation is accepted, such as when correcting mistakes or revoking access for security reasons. Note: In test mode, the API returns an empty data object instead of the deleted invitation details. | | `CARDLY_DELETE_USER` | Delete User | Tool to delete a user by unique ID, immediately revoking their access to your organisation portal. Use when removing user access is required. Cannot remove users with administrator privileges - attempting to delete an admin will fail. | | `CARDLY_DELETE_USER_BY_EMAIL` | Delete User by Email | Deletes a user by email address, immediately revoking their access to your organisation portal. This action cannot remove users with administrator privileges. Use when you need to revoke user access, such as when employees leave or access needs to be terminated. The API returns a 404 if no matching user is found. | | `CARDLY_DELETE_WEBHOOK` | Delete Webhook | Tool to delete a webhook. Use after confirming the webhook ID to immediately cease all activity and event subscriptions for that webhook. | | `CARDLY_ECHO_REQUEST` | Echo Request | Tool to echo all request parameters, body, and headers for debugging purposes. Use when validating authentication or testing API connectivity without affecting account data. | | `CARDLY_GENERATE_PREVIEW` | Generate Preview | Tool to generate a low-quality, watermarked preview document for a card. Use after confirming artwork and template details to estimate costs and delivery. | | `CARDLY_GET_ARTWORK` | Get Artwork | Tool to retrieve information on a specific piece of artwork by its unique ID. Use when you need to fetch detailed artwork data including preview images, media specifications, and metadata. The ID can be obtained from the List Artwork action. | | `CARDLY_GET_WEBHOOK` | Get Webhook | Tool to get details on an existing webhook. Use this to retrieve information about a webhook's configuration, including its target URL, subscribed events, status, and metadata. | | `CARDLY_LIST_ARTWORK` | List Artwork | Tool to retrieve the currently available artwork for your organisation. Use when you need to list and paginate artwork items, optionally filtering to only your own artwork. | | `CARDLY_LIST_CONTACT_LISTS` | List Contact Lists | Tool to retrieve all active contact lists for your organization. Use when you need to list and paginate contact lists with their custom fields and automation rules. | | `CARDLY_LIST_CREDIT_HISTORY` | List Credit History | Retrieves the account's credit transaction history showing all credits and debits. Returns a paginated list of balance changes with timestamps, amounts, and descriptions. Use to audit spending, review signup bonuses, track refunds, or investigate balance changes. Filter by date range using effectiveTime parameters. Supports standard pagination with limit and offset. | | `CARDLY_LIST_DOODLES` | List Doodles | Retrieve your currently available doodles from Cardly. Returns doodle metadata including name and restriction status. Use this to discover available doodle designs before creating cards. | | `CARDLY_LIST_FONTS` | List Fonts | List available fonts for handwriting and text personalization in Cardly cards. Returns font metadata including name, category, variants, and whether the font supports humanisation. Use this to discover font options before creating cards or generating previews. | | `CARDLY_LIST_GIFT_CREDIT_HISTORY` | List Gift Credit History | Lists gift credit history records for your organization with pagination and optional time-based filtering. Gift credits are promotional credits that can be applied to orders. This action retrieves a history of gift credit additions, deductions, and balance changes. Returns empty results if no gift credit history exists. | | `CARDLY_LIST_INVITATIONS` | List Invitations | Tool to retrieve active invitations for your organisation with optional filters. Use when you need to audit invited users and their statuses before sending new invitations or revoking access. | | `CARDLY_LIST_MEDIA` | List Media | Tool to retrieve the currently available media sizes for product artwork. Use when you need to explore or validate media options before creating artwork. | | `CARDLY_LIST_ORDERS` | List Orders | Retrieves a paginated list of orders placed by your organization. Returns detailed order information including customer details, costs, items, shipping info, and delivery tracking. Use optional limit and offset parameters to control pagination. | | `CARDLY_LIST_TEMPLATES` | List Templates | Tool to retrieve your currently available templates from Cardly. Use to list and paginate templates for selection in card sends. | | `CARDLY_LIST_USERS` | List Users | Tool to retrieve all users associated with your account. Use when you need to list and paginate user accounts. | | `CARDLY_LIST_WEBHOOKS` | List Webhooks | Retrieves all webhooks configured for your organization, including their status, target URLs, subscribed events, and delivery statistics. Use this to audit existing webhooks, monitor their health, or get webhook IDs for updates/deletions. | | `CARDLY_LIST_WRITING_STYLES` | List Writing Styles | Tool to list available writing styles. Use when you need to retrieve writing styles available for handwriting personalization. | | `CARDLY_RETRIEVE_ACCOUNT_BALANCE` | Retrieve Account Balance | Tool to retrieve the current account and gift credit balances for your organisation. Use after authenticating to verify available credit before placing orders. | | `CARDLY_RETRIEVE_ORDER` | Retrieve Order | Retrieves detailed information about a specific order by its ID. Returns complete order data including customer details, items, costs, delivery information, and tracking details. Use this after obtaining an order ID from the List Orders action or from a known order reference. | | `CARDLY_RETRIEVE_USER` | Retrieve User | Retrieves detailed information about a specific user account by ID. Returns user profile data including name, email, status, and permissions. Use list_users to get available user IDs first. | | `CARDLY_UPDATE_WEBHOOK` | Update Webhook | Tool to update a webhook’s settings, including target URL and events. Use after retrieving existing webhook to apply configuration changes. | ## Supported Triggers None listed. ## Troubleshooting ### Why is my API key rejected? 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. ### Why are Composio tools unavailable after saving a key? 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. ### Does Composio have a free plan? The Hobby plan includes 100,000 tool calls per month. Composio-managed OAuth apps have a lower included allowance. See [Composio pricing](/pricing) for the current limits that apply to your connection. ## Complete Code None listed. ## Conclusion ### Use Cardly from Atomic Agent With your account connected, ask Atomic Agent to work with Cardly in natural language. You can connect more apps through the same Composio integration as you need them. Visit the [Atomic Agent website](https://atomicagent.io/?cta_placement=atomic-agent-site) or inspect the [Atomic Agent source code](https://github.com/AtomicBot-ai/atomic-agent?cta_placement=atomic-agent-repo). ## How to build Cardly MCP Agent with another framework - [OpenAI Agents SDK](https://composio.dev/toolkits/cardly/framework/open-ai-agents-sdk) - [Claude Agent SDK](https://composio.dev/toolkits/cardly/framework/claude-agents-sdk) - [Claude Code](https://composio.dev/toolkits/cardly/framework/claude-code) - [Claude Cowork](https://composio.dev/toolkits/cardly/framework/claude-cowork) - [Codex](https://composio.dev/toolkits/cardly/framework/codex) - [OpenClaw](https://composio.dev/toolkits/cardly/framework/openclaw) - [Hermes](https://composio.dev/toolkits/cardly/framework/hermes-agent) - [Google ADK](https://composio.dev/toolkits/cardly/framework/google-adk) - [LangChain](https://composio.dev/toolkits/cardly/framework/langchain) - [Vercel AI SDK](https://composio.dev/toolkits/cardly/framework/ai-sdk) - [Mastra AI](https://composio.dev/toolkits/cardly/framework/mastra-ai) - [LlamaIndex](https://composio.dev/toolkits/cardly/framework/llama-index) - [CrewAI](https://composio.dev/toolkits/cardly/framework/crew-ai) - [Pydantic AI](https://composio.dev/toolkits/cardly/framework/pydantic-ai) - [AutoGen](https://composio.dev/toolkits/cardly/framework/autogen) ## Related Toolkits - [Reddit](https://composio.dev/toolkits/reddit) - Reddit is a social news platform with thriving user-driven communities (subreddits). It's the go-to place for discussion, content sharing, and viral marketing. - [Facebook](https://composio.dev/toolkits/facebook) - Facebook is a social media and advertising platform for businesses and creators. It helps you connect, share, and manage content across your public Facebook Pages. - [Linkedin](https://composio.dev/toolkits/linkedin) - LinkedIn is a professional networking platform for connecting, sharing content, and engaging with business opportunities. It's the go-to place for building your professional brand and unlocking new career connections. - [Active campaign](https://composio.dev/toolkits/active_campaign) - ActiveCampaign is a marketing automation and CRM platform for managing email campaigns, sales pipelines, and customer segmentation. It helps businesses engage customers and drive growth through smart automation and targeted outreach. - [ActiveTrail](https://composio.dev/toolkits/active_trail) - ActiveTrail is a user-friendly email marketing and automation platform. It helps you reach subscribers and automate campaigns with ease. - [Adobe Marketing Agent MCP](https://composio.dev/toolkits/adobe_marketing_agent_mcp) - Adobe Marketing Agent MCP is Adobe's hosted MCP service that exposes marketing context, preferences, and agent capabilities. Use it to provide agents with campaign, audience, and analytics context via a managed integration. - [Ahrefs](https://composio.dev/toolkits/ahrefs) - Ahrefs is an SEO and marketing platform for site audits, keyword research, and competitor insights. It helps you improve search rankings and drive organic traffic. - [AimTell](https://composio.dev/toolkits/aimtell) - AimTell is a web push notification platform for managing websites, subscribers, campaigns, segments, and delivery analytics. Use it to send targeted browser notifications and measure engagement across your web push campaigns. - [Amcards](https://composio.dev/toolkits/amcards) - AMCards lets you create and mail personalized greeting cards online. Build stronger customer relationships with easy, automated card campaigns. - [Beamer](https://composio.dev/toolkits/beamer) - Beamer is a news and changelog platform for in-app announcements and feature updates. It helps companies boost user engagement by sharing news where users are most active. - [Beehiiv](https://composio.dev/toolkits/beehiiv) - Beehiiv is a newsletter platform for creating and managing publications and subscribers. It helps grow audience engagement and monetize your mailing list. - [Benchmark email](https://composio.dev/toolkits/benchmark_email) - Benchmark Email is a platform for creating, sending, and tracking email campaigns. It's built to help you engage audiences and analyze results—all in one place. - [Bigmailer](https://composio.dev/toolkits/bigmailer) - BigMailer is an email marketing platform for managing multiple brands with white-labeling and automation. It helps teams streamline campaigns and simplify integration with Amazon SES. - [Bitly](https://composio.dev/toolkits/bitly) - Bitly is a link management platform for shortening, customizing, sharing, and tracking links and QR codes. It helps teams create branded links and measure engagement across campaigns. - [BlueFox Email](https://composio.dev/toolkits/bluefox_email) - BlueFox Email is an email API for managing contacts, subscriber lists, and sending transactional and triggered messages. Use it to reliably send transactional and triggered emails and manage subscribers at scale. - [Brandfetch](https://composio.dev/toolkits/brandfetch) - Brandfetch is an API that delivers company logos, colors, and visual branding assets. It helps marketers and developers keep brand visuals consistent everywhere. - [Braze](https://composio.dev/toolkits/braze) - Braze is a customer engagement platform for managing user data, messaging, campaigns, and analytics. Use it to deliver targeted, multi-channel messaging and analyze campaign performance. - [Brevo](https://composio.dev/toolkits/brevo) - Brevo is an all-in-one email and SMS marketing platform for transactional messaging, automation, and CRM. It helps businesses engage customers and streamline communications through powerful campaign tools. - [Buffer](https://composio.dev/toolkits/buffer) - Buffer is a social media management platform for planning, creating, scheduling, and publishing posts across connected channels. It helps teams keep content organized and publish consistently without jumping between social apps. - [BulkPublish](https://composio.dev/toolkits/bulkpublish) - BulkPublish is a social media publishing platform for managing scheduled content across multiple channels. It helps teams plan campaigns, publish consistently, and track performance in one place. ## Frequently Asked Questions ### What are the differences in Tool Router MCP and Cardly MCP? With a standalone Cardly MCP server, the agents and LLMs can only access a fixed set of Cardly tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Cardly and many other apps based on the task at hand, all through a single MCP endpoint. ### Can I use Tool Router MCP with Atomic Agent? Yes, you can. Atomic Agent fully supports MCP integration. You get structured tool calling, message history handling, and model orchestration while Tool Router takes care of discovering and serving the right Cardly tools. ### Can I manage the permissions and scopes for Cardly while using Tool Router? Yes, absolutely. You can configure which Cardly scopes and actions are allowed when connecting your account to Composio. You can also bring your own OAuth credentials or API configuration so you keep full control over what the agent can do. ### How safe is my data with Composio Tool Router? All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your Cardly data and credentials are handled as safely as possible. --- [See all toolkits](https://composio.dev/toolkits) · [Composio docs](https://docs.composio.dev/llms.txt)