# How to integrate Dictionary api MCP with Atomic Agent ```json { "title": "How to integrate Dictionary api MCP with Atomic Agent", "toolkit": "Dictionary api", "toolkit_slug": "dictionary_api", "framework": "Atomic Agent", "framework_slug": "atomic-agent", "url": "https://composio.dev/toolkits/dictionary_api/framework/atomic-agent", "markdown_url": "https://composio.dev/toolkits/dictionary_api/framework/atomic-agent.md", "updated_at": "2026-08-11T13:08:35.113Z" } ``` ## 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 Dictionary api. 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 Dictionary api account. See the [Atomic Agent documentation](https://atomicagent.io/docs/?cta_placement=atomic-agent-docs) for installation instructions. ## Also integrate Dictionary api with - [OpenAI Agents SDK](https://composio.dev/toolkits/dictionary_api/framework/open-ai-agents-sdk) - [Claude Agent SDK](https://composio.dev/toolkits/dictionary_api/framework/claude-agents-sdk) - [Claude Code](https://composio.dev/toolkits/dictionary_api/framework/claude-code) - [Claude Cowork](https://composio.dev/toolkits/dictionary_api/framework/claude-cowork) - [Codex](https://composio.dev/toolkits/dictionary_api/framework/codex) - [OpenClaw](https://composio.dev/toolkits/dictionary_api/framework/openclaw) - [Hermes](https://composio.dev/toolkits/dictionary_api/framework/hermes-agent) - [Google ADK](https://composio.dev/toolkits/dictionary_api/framework/google-adk) - [LangChain](https://composio.dev/toolkits/dictionary_api/framework/langchain) - [Vercel AI SDK](https://composio.dev/toolkits/dictionary_api/framework/ai-sdk) - [Mastra AI](https://composio.dev/toolkits/dictionary_api/framework/mastra-ai) - [LlamaIndex](https://composio.dev/toolkits/dictionary_api/framework/llama-index) - [CrewAI](https://composio.dev/toolkits/dictionary_api/framework/crew-ai) - [Pydantic AI](https://composio.dev/toolkits/dictionary_api/framework/pydantic-ai) - [AutoGen](https://composio.dev/toolkits/dictionary_api/framework/autogen) ## TL;DR ### How Atomic Agent connects to Dictionary api 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 Dictionary api to Atomic Agent ### Connect Dictionary api 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 Dictionary api. It searches Composio for the right tool. - On first use, open the sign-in link returned in the chat. Connect your Dictionary api 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 Dictionary api MCP server, and what's possible with it? The Dictionary api MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Dictionary api account. It provides structured and secure access to comprehensive dictionary and thesaurus data, so your agent can look up definitions, explore word origins, access pronunciations, and discover synonyms or antonyms on your behalf. - Instant word definition lookup: Ask your agent to fetch clear, detailed definitions for any word you encounter. - Etymology and origin insights: Let the agent retrieve the historical roots and language origin of specific words for deeper understanding. - Audio pronunciation access: Have your agent provide accurate audio pronunciations, helping with proper usage and learning. - Synonyms and antonyms discovery: Quickly find synonyms and antonyms to enrich your vocabulary or refine your writing style. - Comprehensive lexical information: Enable your agent to surface all available meanings, usage examples, and nuanced word senses for precise communication. ## Supported Tools | Tool slug | Name | Description | |---|---|---| | `DICTIONARY_API_GET_WORD_DEFINITION_V2` | Get Word Definition | Retrieve comprehensive dictionary data for a word including definitions, phonetics, etymology, synonyms, and antonyms. Uses the Free Dictionary API (dictionaryapi.dev) - a free, open-source dictionary powered by Wiktionary data. Returns detailed word information including multiple definitions grouped by part of speech, pronunciation audio, example sentences, and related words. Ideal for language learning, writing assistance, and vocabulary exploration. Note: Primarily supports English ('en'). Other languages may have limited coverage. | ## 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 Dictionary api from Atomic Agent With your account connected, ask Atomic Agent to work with Dictionary api 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 Dictionary api MCP Agent with another framework - [OpenAI Agents SDK](https://composio.dev/toolkits/dictionary_api/framework/open-ai-agents-sdk) - [Claude Agent SDK](https://composio.dev/toolkits/dictionary_api/framework/claude-agents-sdk) - [Claude Code](https://composio.dev/toolkits/dictionary_api/framework/claude-code) - [Claude Cowork](https://composio.dev/toolkits/dictionary_api/framework/claude-cowork) - [Codex](https://composio.dev/toolkits/dictionary_api/framework/codex) - [OpenClaw](https://composio.dev/toolkits/dictionary_api/framework/openclaw) - [Hermes](https://composio.dev/toolkits/dictionary_api/framework/hermes-agent) - [Google ADK](https://composio.dev/toolkits/dictionary_api/framework/google-adk) - [LangChain](https://composio.dev/toolkits/dictionary_api/framework/langchain) - [Vercel AI SDK](https://composio.dev/toolkits/dictionary_api/framework/ai-sdk) - [Mastra AI](https://composio.dev/toolkits/dictionary_api/framework/mastra-ai) - [LlamaIndex](https://composio.dev/toolkits/dictionary_api/framework/llama-index) - [CrewAI](https://composio.dev/toolkits/dictionary_api/framework/crew-ai) - [Pydantic AI](https://composio.dev/toolkits/dictionary_api/framework/pydantic-ai) - [AutoGen](https://composio.dev/toolkits/dictionary_api/framework/autogen) ## Related Toolkits - [Canvas](https://composio.dev/toolkits/canvas) - Canvas is a learning management system for online courses, assignments, grading, and collaboration. 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However, with the Composio Tool Router, agents can dynamically load tools from Dictionary api 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 Dictionary api tools. ### Can I manage the permissions and scopes for Dictionary api while using Tool Router? Yes, absolutely. You can configure which Dictionary api 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 Dictionary api data and credentials are handled as safely as possible. --- [See all toolkits](https://composio.dev/toolkits) ยท [Composio docs](https://docs.composio.dev/llms.txt)