# How to integrate Writer MCP with Atomic Agent ```json { "title": "How to integrate Writer MCP with Atomic Agent", "toolkit": "Writer", "toolkit_slug": "writer", "framework": "Atomic Agent", "framework_slug": "atomic-agent", "url": "https://composio.dev/toolkits/writer/framework/atomic-agent", "markdown_url": "https://composio.dev/toolkits/writer/framework/atomic-agent.md", "updated_at": "2026-08-11T13:16:20.986Z" } ``` ## 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 Writer. 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 Writer account. See the [Atomic Agent documentation](https://atomicagent.io/docs/?cta_placement=atomic-agent-docs) for installation instructions. ## Also integrate Writer with - [OpenAI Agents SDK](https://composio.dev/toolkits/writer/framework/open-ai-agents-sdk) - [Claude Agent SDK](https://composio.dev/toolkits/writer/framework/claude-agents-sdk) - [Claude Code](https://composio.dev/toolkits/writer/framework/claude-code) - [Claude Cowork](https://composio.dev/toolkits/writer/framework/claude-cowork) - [Codex](https://composio.dev/toolkits/writer/framework/codex) - [OpenClaw](https://composio.dev/toolkits/writer/framework/openclaw) - [Hermes](https://composio.dev/toolkits/writer/framework/hermes-agent) - [Google ADK](https://composio.dev/toolkits/writer/framework/google-adk) - [LangChain](https://composio.dev/toolkits/writer/framework/langchain) - [Vercel AI SDK](https://composio.dev/toolkits/writer/framework/ai-sdk) - [Mastra AI](https://composio.dev/toolkits/writer/framework/mastra-ai) - [LlamaIndex](https://composio.dev/toolkits/writer/framework/llama-index) - [CrewAI](https://composio.dev/toolkits/writer/framework/crew-ai) - [Pydantic AI](https://composio.dev/toolkits/writer/framework/pydantic-ai) - [AutoGen](https://composio.dev/toolkits/writer/framework/autogen) ## TL;DR ### How Atomic Agent connects to Writer 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 Writer to Atomic Agent ### Connect Writer 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 Writer. It searches Composio for the right tool. - On first use, open the sign-in link returned in the chat. Connect your Writer 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 Writer MCP server, and what's possible with it? The Writer MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Writer account. It provides structured and secure access to your Writer AI platform, so your agent can perform actions like querying knowledge graphs, generating chat completions, extracting medical concepts, managing files, and orchestrating enterprise AI workflows on your behalf. - Conversational AI and content generation: Use your agent to generate chat-based completions and natural language responses using Writer's advanced LLMs. - Enterprise knowledge graph management: Create, retrieve, list, or delete knowledge graphs to organize and access structured knowledge within your organization. - Automated data extraction from clinical text: Extract medical entities and standardized codes (like SNOMED CT) from unstructured clinical or healthcare text for downstream analysis. - Application and model discovery: List available no-code agent applications and LLM models to streamline how your agent selects tools for specific tasks. - File management and inspection: Retrieve and review uploaded files, filter by attributes, and manage your enterprise content for further AI-driven actions. ## Supported Tools | Tool slug | Name | Description | |---|---|---| | `WRITER_ADD_FILE_TO_GRAPH` | Add File to Knowledge Graph | Tool to add a file to a knowledge graph for indexing and retrieval. Use when you need to add an uploaded file to an existing knowledge graph for RAG applications. | | `WRITER_ANALYZE_IMAGES` | Analyze Images | Tool to analyze images using Writer's vision capabilities. Use when you need image understanding, text extraction from images, or visual question answering. Images must be uploaded via POST /v1/files before analysis. | | `WRITER_ASK_QUESTION_TO_KNOWLEDGE_GRAPH` | Ask Question to Knowledge Graph | Tool to send a question to the knowledge graph and retrieve the answer. Use after defining your question and optional context. | | `WRITER_CHAT_COMPLETION` | Chat Completion | Tool to generate chat-based completions. Use when you need conversational AI responses; call after assembling system and user messages. | | `WRITER_CREATE_KNOWLEDGE_GRAPH` | Create Knowledge Graph | Tool to create a new knowledge graph. Use when you need to create an empty graph that files can be added to. | | `WRITER_DELETE_FILE` | Delete File | Tool to delete a file by its ID. Use when you need to permanently remove a file from Writer with no recovery option available. | | `WRITER_DELETE_GRAPH` | Delete Graph | Tool to delete a knowledge graph by its ID. Use when you need to remove a graph after confirming its identifier. | | `WRITER_DETECT_AI_CONTENT` | Detect AI Content | Tool to detect whether content was generated by AI. Returns a classification label and confidence score indicating the likelihood of AI-generated content. Use when you need to verify content authenticity or identify AI-written text. | | `WRITER_DOWNLOAD_FILE` | Download File | Tool to download the binary content of a file. Use when you need to retrieve file data from the Writer platform. The response contains the file in its original format. | | `WRITER_GET_FILE` | Get File | Tool to retrieve detailed information about a specific file by its ID. Use when you need to check a file's metadata, processing status, or associated knowledge graphs. | | `WRITER_LIST_APPLICATIONS` | List Applications | Tool to list all no-code agent applications. Use when you need to retrieve all registered applications. | | `WRITER_LIST_FILES` | List Files | Tool to list all uploaded files. Use when you need to retrieve a paginated set of user files, optionally filtered by status, graph, or type. Use after uploading files to inspect available files. | | `WRITER_LIST_GRAPHS` | List Knowledge Graphs | Tool to retrieve a list of knowledge graphs. Use when you need an overview of existing graphs. | | `WRITER_LIST_MODELS` | List Models | Tool to list all available language models. Use when you need to discover which models can be used for completions. | | `WRITER_MEDICAL_COMPREHEND` | Medical Text Comprehension | Tool to extract medical entities and concepts from unstructured clinical text. Use when you need to label medical text with standardized codes such as SNOMED CT. | | `WRITER_PARSE_PDF` | Parse PDF | Tool to parse and extract text content from a previously uploaded PDF file. Use when you need to convert PDF documents to text or markdown format for further processing. | | `WRITER_REMOVE_FILE_FROM_GRAPH` | Remove File From Graph | Tool to remove a file from a Knowledge Graph. Use when you need to unlink a specific file from a graph by providing both graph and file identifiers. | | `WRITER_RETRIEVE_GRAPH` | Retrieve Knowledge Graph | Tool to retrieve a knowledge graph by its ID. Use when you need details of an existing graph. | | `WRITER_TEXT_GENERATION` | Text Generation | Tool to generate text based on a given prompt. Use when you need model-driven completions after crafting a prompt. | | `WRITER_TRANSLATE_TEXT` | Translate Text | Tool to translate text from one language to another with support for formality, length control, and profanity masking. Use when you need to convert text between different languages. | | `WRITER_UPDATE_GRAPH` | Update Knowledge Graph | Tool to update an existing knowledge graph. Use after confirming the graph_id. Specify at least one of name or description to modify. | | `WRITER_UPLOAD_FILE` | Upload File | Tool to upload a file to Writer. Use when you need to add files for Knowledge Graphs, PDF parsing, or other file-based operations. Files can be associated with Knowledge Graphs for RAG applications. | | `WRITER_WEB_SEARCH` | Web Search | Tool to perform a web search. Use when you need relevant web page results for a given query. | ## 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 Writer from Atomic Agent With your account connected, ask Atomic Agent to work with Writer 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 Writer MCP Agent with another framework - [OpenAI Agents SDK](https://composio.dev/toolkits/writer/framework/open-ai-agents-sdk) - [Claude Agent SDK](https://composio.dev/toolkits/writer/framework/claude-agents-sdk) - [Claude Code](https://composio.dev/toolkits/writer/framework/claude-code) - [Claude Cowork](https://composio.dev/toolkits/writer/framework/claude-cowork) - [Codex](https://composio.dev/toolkits/writer/framework/codex) - [OpenClaw](https://composio.dev/toolkits/writer/framework/openclaw) - [Hermes](https://composio.dev/toolkits/writer/framework/hermes-agent) - [Google ADK](https://composio.dev/toolkits/writer/framework/google-adk) - [LangChain](https://composio.dev/toolkits/writer/framework/langchain) - [Vercel AI SDK](https://composio.dev/toolkits/writer/framework/ai-sdk) - [Mastra AI](https://composio.dev/toolkits/writer/framework/mastra-ai) - [LlamaIndex](https://composio.dev/toolkits/writer/framework/llama-index) - [CrewAI](https://composio.dev/toolkits/writer/framework/crew-ai) - [Pydantic AI](https://composio.dev/toolkits/writer/framework/pydantic-ai) - [AutoGen](https://composio.dev/toolkits/writer/framework/autogen) ## Related Toolkits - [Composio](https://composio.dev/toolkits/composio) - Composio is an integration platform that connects AI agents with hundreds of business tools. It streamlines authentication and lets you trigger actions across services—no custom code needed. - [Composio search](https://composio.dev/toolkits/composio_search) - Composio search is a unified web search toolkit spanning travel, e-commerce, news, financial markets, images, and more. It lets you and your apps tap into up-to-date web data from a single, easy-to-integrate service. - [Perplexityai](https://composio.dev/toolkits/perplexityai) - Perplexityai delivers natural, conversational AI models for generating human-like text. Instantly get context-aware, high-quality responses for chat, search, or complex workflows. - [Browser tool](https://composio.dev/toolkits/browser_tool) - Browser tool is a virtual browser integration that lets AI agents interact with the web programmatically. It enables automated browsing, scraping, and action-taking from any AI workflow. - [Ai ml api](https://composio.dev/toolkits/ai_ml_api) - Ai ml api is a suite of AI/ML models for natural language and image tasks. It provides fast, scalable access to advanced AI capabilities for your apps and workflows. - [Aivoov](https://composio.dev/toolkits/aivoov) - Aivoov is an AI-powered text-to-speech platform offering 1,000+ voices in over 150 languages. Instantly turn written content into natural, human-like audio for any application. - [All images ai](https://composio.dev/toolkits/all_images_ai) - All-Images.ai is an AI-powered image generation and management platform. It helps you create, search, and organize images effortlessly with advanced AI capabilities. - [AltTextLab](https://composio.dev/toolkits/alt_text_lab) - AltTextLab is an AI service that generates accessible, SEO-aware alt text for images. It helps teams make image content easier to understand, index, and publish. - [Anthropic administrator](https://composio.dev/toolkits/anthropic_administrator) - Anthropic administrator is an API for managing Anthropic organizational resources like members, workspaces, and API keys. It helps you automate admin tasks and streamline resource management across your Anthropic organization. - [Api labz](https://composio.dev/toolkits/api_labz) - Api labz is a platform offering a suite of AI-driven APIs and workflow tools. It helps developers automate tasks and build smarter, more efficient applications. - [Apiframe](https://composio.dev/toolkits/apiframe) - Apiframe is an API platform for generating and managing AI images, videos, music, uploads, assets, jobs, and custom LoRAs. It gives developers one clean API for creative AI workflows without juggling multiple model providers. - [Apipie ai](https://composio.dev/toolkits/apipie_ai) - Apipie ai is an AI model aggregator offering a single API for accessing top AI models from multiple providers. It helps developers build cost-efficient, latency-optimized AI solutions without juggling multiple integrations. - [Arize AX](https://composio.dev/toolkits/arize_ax) - Arize AX is an AI engineering platform for tracing, evaluating, and improving AI applications. Use it to debug LLM behavior, compare experiments, and improve production AI quality. - [Artificial Analysis](https://composio.dev/toolkits/artificial_analysis) - Artificial Analysis is an independent benchmarking platform for AI models and API providers. Use it to compare model intelligence, coding, math, pricing, latency, throughput, and arena rankings. - [AssemblyAI](https://composio.dev/toolkits/assemblyai) - AssemblyAI is a speech-to-text and audio intelligence API for uploaded or hosted media. Use it to turn audio and video into accurate transcripts, summaries, and insights. - [Astica ai](https://composio.dev/toolkits/astica_ai) - Astica ai provides APIs for computer vision, NLP, and voice synthesis. Integrate advanced AI features into your app with a single API key. - [Avoma](https://composio.dev/toolkits/avoma) - Avoma is an AI meeting assistant for recording, transcribing, analyzing, and managing meetings, calls, notes, scorecards, and conversation intelligence. It helps teams turn conversations into searchable notes, follow-ups, coaching insights, and revenue intelligence. - [Bigml](https://composio.dev/toolkits/bigml) - BigML is a machine learning platform that lets you build, train, and deploy predictive models from your data. Its intuitive interface and robust API make machine learning accessible and efficient. - [Bland AI](https://composio.dev/toolkits/bland_ai) - Bland AI is a conversational AI platform for building voice agents, phone calls, messaging, and communication workflows. Use it to automate calling, evaluate conversations, and run voice operations at scale. - [Botbaba](https://composio.dev/toolkits/botbaba) - Botbaba is a platform for building, managing, and deploying conversational AI chatbots across messaging channels. It streamlines chatbot automation, making it easier to integrate AI into customer interactions. ## Frequently Asked Questions ### What are the differences in Tool Router MCP and Writer MCP? With a standalone Writer MCP server, the agents and LLMs can only access a fixed set of Writer tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Writer 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 Writer tools. ### Can I manage the permissions and scopes for Writer while using Tool Router? Yes, absolutely. You can configure which Writer 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 Writer data and credentials are handled as safely as possible. --- [See all toolkits](https://composio.dev/toolkits) · [Composio docs](https://docs.composio.dev/llms.txt)