# How to integrate Esignatures io MCP with Claude Code ```json { "title": "How to integrate Esignatures io MCP with Claude Code", "toolkit": "Esignatures io", "toolkit_slug": "esignatures_io", "framework": "Claude Code", "framework_slug": "claude-code", "url": "https://composio.dev/toolkits/esignatures_io/framework/claude-code", "markdown_url": "https://composio.dev/toolkits/esignatures_io/framework/claude-code.md", "updated_at": "2026-05-12T10:10:34.742Z" } ``` ## Introduction Manage your Esignatures io directly from Claude Code with zero worries about OAuth hassles, API-breaking issues, or reliability and security concerns. You can do this in two different ways: - Via [Composio Connect](https://dashboard.composio.dev/login?utm_source=toolkits&utm_medium=framework_template&utm_campaign=claude-code&utm_content=composio_connect&next=%2F~%2Forg%2Fconnect%2Fclients%2Fclaude-code) - Direct and easiest approach - Via [Composio SDK](https://docs.composio.dev/docs?utm_source=toolkits&utm_medium=framework_template&utm_campaign=claude-code&utm_content=composio_sdk) - Programmatic approach with more control ## Also integrate Esignatures io with - [OpenAI Agents SDK](https://composio.dev/toolkits/esignatures_io/framework/open-ai-agents-sdk) - [Claude Agent SDK](https://composio.dev/toolkits/esignatures_io/framework/claude-agents-sdk) - [Claude Cowork](https://composio.dev/toolkits/esignatures_io/framework/claude-cowork) - [Codex](https://composio.dev/toolkits/esignatures_io/framework/codex) - [OpenClaw](https://composio.dev/toolkits/esignatures_io/framework/openclaw) - [Hermes](https://composio.dev/toolkits/esignatures_io/framework/hermes-agent) - [CLI](https://composio.dev/toolkits/esignatures_io/framework/cli) - [Google ADK](https://composio.dev/toolkits/esignatures_io/framework/google-adk) - [LangChain](https://composio.dev/toolkits/esignatures_io/framework/langchain) - [Vercel AI SDK](https://composio.dev/toolkits/esignatures_io/framework/ai-sdk) - [Mastra AI](https://composio.dev/toolkits/esignatures_io/framework/mastra-ai) - [LlamaIndex](https://composio.dev/toolkits/esignatures_io/framework/llama-index) - [CrewAI](https://composio.dev/toolkits/esignatures_io/framework/crew-ai) ## TL;DR - Only one MCP URL to connect multiple apps with Claude Code with zero auth hassles. - Programmatic tool calling allows LLMs to write its code in a remote workbench to handle complex tool chaining. Reduces to-and-fro with LLMs for frequent tool calling. - Handling Large tool responses out of LLM context to minimize context rot. - Dynamic just-in-time access to 20,000 tools across 1000+ other Apps for cross-app workflows. It loads the tools you need, so LLMs aren't overwhelmed by tools you don't need. ## Connect Esignatures io to Claude Code ### Connecting Esignatures io to Claude Code using Composio 1. Add the Composio MCP to Claude ```bash claude mcp add --scope user --transport http composio https://connect.composio.dev/mcp ``` ## What is Claude Code? Claude Code is Anthropic's command line developer tool that lets you use Claude directly inside your terminal. Instead of switching between your editor, browser, and chat, you can stay in your project folder and ask Claude to help you build, debug, refactor, and understand code right where you're working. Key features include: - Terminal-Native Experience: Work with Claude directly in your command line without switching contexts - MCP Support: Built-in support for Model Context Protocol servers to extend Claude's capabilities - Project Context: Claude understands your project structure and can read, write, and modify files - Interactive Development: Ask questions, debug code, and get help in real-time while coding - Multi-Platform: Works on macOS, Linux, WSL, and Windows ## What is the Esignatures io MCP server, and what's possible with it? The Esignatures io MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Esignatures io account. It provides structured and secure access to your contract management tools, so your agent can create contracts, manage templates, handle signer profiles, and control contract workflows seamlessly on your behalf. - Automated contract creation and sending: Instantly generate and send new contracts for signature using pre-built templates and custom signer details. - Template management and organization: Allow your agent to create, retrieve, list, and delete contract templates for easy document standardization and reuse. - Signer profile creation: Effortlessly add new signers to your account, making it simple to initiate or update signature requests as needed. - Contract withdrawal and workflow control: Instantly withdraw contracts that should no longer be signed, preventing further action on outdated or incorrect documents. ## Supported Tools | Tool slug | Name | Description | |---|---|---| | `ESIGNATURES_IO_ADD_TEMPLATE_COLLABORATOR` | Add Template Collaborator | Tool to grant editing access to a template with optional email invitation. Use when you need to add a collaborator who can edit the template. | | `ESIGNATURES_IO_COPY_TEMPLATE` | Copy Template | Tool to duplicate an existing template with optional customization. Use when you need to create a new template based on an existing one. | | `ESIGNATURES_IO_CREATE_CONTRACT` | Create Contract | Tool to create a new contract using a specified template and signer details. Use after selecting a template when you need to send a contract for signature. | | `ESIGNATURES_IO_CREATE_SIGNER` | Create Signer | Add a signer to an existing contract/signature request. This action queues the addition of a new signer to a contract that has already been created. The signer will be added asynchronously and will receive their signing invitation via email. Use this when you need to add additional signers to a contract after it has been created, or when you want to add signers incrementally rather than all at once during contract creation. Note: The API returns a queued status, indicating the operation has been accepted for processing. Adding a new signer does not automatically send an email notification unless the contract settings are configured to do so. | | `ESIGNATURES_IO_CREATE_TEMPLATE` | Create Template | Tool to create a new template. Use when you want to register a reusable contract template after defining document elements. | | `ESIGNATURES_IO_DELETE_SIGNER` | Delete Signer | Tool to remove a signer from a contract. Use when you need to revoke a signer's access to sign a contract. | | `ESIGNATURES_IO_DELETE_TEMPLATE` | Delete Template | Tool to delete a specific template by its ID. Use when you need to remove an unused or outdated template after confirming its ID. | | `ESIGNATURES_IO_GENERATE_CONTRACT_PDF_PREVIEW` | Generate Contract PDF Preview | Tool to generate a PDF preview of a contract and receive a webhook notification with a download URL. Use when you need to preview the contract document before or after signing. | | `ESIGNATURES_IO_GET_CONTRACT` | Get Contract | Tool to retrieve details of a specific contract by its ID. Returns contract status, signer information, and values entered by signers. Use when you need to check contract status or download signed PDF. | | `ESIGNATURES_IO_GET_TEMPLATE` | Get Template | Tool to retrieve details of a specific template by its ID. Use when you need to fetch a template’s metadata after selecting its ID. | | `ESIGNATURES_IO_LIST_TEMPLATE_COLLABORATORS` | List Template Collaborators | Tool to retrieve all collaborators with editing access to a template. Returns collaborator IDs, names, emails, and editor URLs. | | `ESIGNATURES_IO_LIST_TEMPLATES` | List Templates | Tool to retrieve a list of all templates. Use when you need to browse available templates before selecting one. | | `ESIGNATURES_IO_REMOVE_TEMPLATE_COLLABORATOR` | Remove Template Collaborator | Tool to revoke a collaborator's template editing permissions. Use when you need to remove access for a specific collaborator from a template. | | `ESIGNATURES_IO_SEND_CONTRACT_TO_SIGNER` | Send Contract to Signer | Tool to send or resend a contract signature request to a specific signer via their configured communication channel. Use when you need to deliver a contract to a signer for their signature. | | `ESIGNATURES_IO_UPDATE_SIGNER` | Update Signer | Tool to update contact details of an existing signer on a contract. Use when you need to change a signer's name, email, or mobile number. Note: The contract is not automatically emailed when the signer's information is updated. | | `ESIGNATURES_IO_UPDATE_TEMPLATE` | Update Template | Tool to update an existing template's content, title, or labels. Use when you need to modify a template's configuration without creating a new one. | | `ESIGNATURES_IO_WITHDRAW_CONTRACT` | Withdraw Contract | Tool to withdraw a contract by its ID. Use when you need to prevent further signing of a contract that hasn't been fully signed. | ## Supported Triggers None listed. ## Creating MCP Server - Stand-alone vs Composio SDK The Esignatures io MCP server is an implementation of the Model Context Protocol that connects Claude Code (and other AI assistants like Claude and Cursor) directly to your Esignatures io account. It provides structured and secure access so Claude can perform Esignatures io operations on your behalf. With Composio's managed implementation, you don't have to create your own developer app. For production, if you're building an end product, we recommend using your own credentials. The managed server helps you prototype fast and go from 0-1 faster. ## Step-by-step Guide ### 1. Prerequisites Before starting, make sure you have: - Claude Pro, Max, or API billing enabled Anthropic account - Composio API Key - A Esignatures io account - Basic knowledge of Python or TypeScript ### 1. Install Claude Code To install Claude Code, use one of the following methods based on your operating system: ```bash # macOS, Linux, WSL curl -fsSL https://claude.ai/install.sh | bash # Windows PowerShell irm https://claude.ai/install.ps1 | iex # Windows CMD curl -fsSL https://claude.ai/install.cmd -o install.cmd && install.cmd && del install.cmd ``` ### 2. Set up Claude Code Open a terminal, go to your project folder, and start Claude Code: - Claude Code will open in your terminal - Follow the prompts to sign in with your Anthropic account - Complete the authentication flow - Once authenticated, you can start using Claude Code ```bash cd your-project-folder claude ``` ### 3. Set up environment variables Create a .env file in your project root with the following variables: - COMPOSIO_API_KEY authenticates with Composio (get it from [Composio dashboard](https://dashboard.composio.dev/login?utm_source=toolkits&utm_medium=framework_template&utm_campaign=claude-code&utm_content=api_key&next=%2F~%2Forg%2Fconnect%2Fclients%2Fclaude-code)) - USER_ID identifies the user for session management (use any unique identifier) ```bash COMPOSIO_API_KEY=your_composio_api_key_here USER_ID=your_user_id_here ``` ### 4. Install Composio library No description provided. ```python pip install composio-core python-dotenv ``` ```typescript npm install @composio/core dotenv ``` ### 5. Generate Composio MCP URL No description provided. ```python import os from composio import Composio from dotenv import load_dotenv load_dotenv() COMPOSIO_API_KEY = os.getenv("COMPOSIO_API_KEY") USER_ID = os.getenv("USER_ID") composio_client = Composio(api_key=COMPOSIO_API_KEY) composio_session = composio_client.create( user_id=USER_ID, toolkits=["esignatures_io"], ) COMPOSIO_MCP_URL = composio_session.mcp.url print(f"MCP URL: {COMPOSIO_MCP_URL}") print(f"\nUse this command to add to Claude Code:") print(f'claude mcp add --transport http esignatures_io-composio "{COMPOSIO_MCP_URL}" --headers "X-API-Key:{COMPOSIO_API_KEY}"') ``` ```typescript import 'dotenv/config'; import { Composio } from '@composio/core'; const { COMPOSIO_API_KEY, USER_ID } = process.env; if (!COMPOSIO_API_KEY || !USER_ID) { throw new Error('COMPOSIO_API_KEY and USER_ID required in .env'); } const composioClient = new Composio({ apiKey: COMPOSIO_API_KEY }); const composioSession = await composioClient.create(USER_ID, { toolkits: ['esignatures_io'], }); const composioMcpUrl = composioSession?.mcp.url; console.log(`MCP URL: ${composioMcpUrl}`); console.log(`\nUse this command to add to Claude Code:`); console.log(`claude mcp add --transport http esignatures_io-composio "${composioMcpUrl}" --headers "X-API-Key:${COMPOSIO_API_KEY}"`); ``` ### 6. Run the script and copy the MCP URL No description provided. ```python python generate_mcp_url.py ``` ```typescript node --loader ts-node/esm generate_mcp_url.ts # or if using tsx tsx generate_mcp_url.ts ``` ### 7. Add Esignatures io MCP to Claude Code In your terminal, add the MCP server using the command from the previous step. The command format is: - claude mcp add registers a new MCP server with Claude Code - --transport http specifies that this is an HTTP-based MCP server - The server name (esignatures_io-composio) is how you'll reference it - The URL points to your Composio Tool Router session - --headers includes your Composio API key for authentication After running the command, close the current Claude Code session and start a new one for the changes to take effect. ```bash claude mcp add --transport http esignatures_io-composio "YOUR_MCP_URL_HERE" --headers "X-API-Key:YOUR_COMPOSIO_API_KEY" # Then restart Claude Code exit claude ``` ### 8. Verify the installation Check that your Esignatures io MCP server is properly configured. - This command lists all MCP servers registered with Claude Code - You should see your esignatures_io-composio entry in the list - This confirms that Claude Code can now access Esignatures io tools If everything is wired up, you should see your esignatures_io-composio entry listed: ```bash claude mcp list ``` ### 9. Authenticate Esignatures io The first time you try to use Esignatures io tools, you'll be prompted to authenticate. - Claude Code will detect that you need to authenticate with Esignatures io - It will show you an authentication link - Open the link in your browser (or copy/paste it) - Complete the Esignatures io authorization flow - Return to the terminal and start using Esignatures io through Claude Code Once authenticated, you can ask Claude Code to perform Esignatures io operations in natural language. For example: - "Send a contract to a new client for signature" - "List all available contract templates" - "Withdraw a contract that hasn't been signed" ## Complete Code ```python import os from composio import Composio from dotenv import load_dotenv load_dotenv() COMPOSIO_API_KEY = os.getenv("COMPOSIO_API_KEY") USER_ID = os.getenv("USER_ID") composio_client = Composio(api_key=COMPOSIO_API_KEY) composio_session = composio_client.create( user_id=USER_ID, toolkits=["esignatures_io"], ) COMPOSIO_MCP_URL = composio_session.mcp.url print(f"MCP URL: {COMPOSIO_MCP_URL}") print(f"\nUse this command to add to Claude Code:") print(f'claude mcp add --transport http esignatures_io-composio "{COMPOSIO_MCP_URL}" --headers "X-API-Key:{COMPOSIO_API_KEY}"') ``` ```typescript import 'dotenv/config'; import { Composio } from '@composio/core'; const { COMPOSIO_API_KEY, USER_ID } = process.env; if (!COMPOSIO_API_KEY || !USER_ID) { throw new Error('COMPOSIO_API_KEY and USER_ID required in .env'); } const composioClient = new Composio({ apiKey: COMPOSIO_API_KEY }); const composioSession = await composioClient.create(USER_ID, { toolkits: ['esignatures_io'], }); const composioMcpUrl = composioSession?.mcp.url; console.log(`MCP URL: ${composioMcpUrl}`); console.log(`\nUse this command to add to Claude Code:`); console.log(`claude mcp add --transport http esignatures_io-composio "${composioMcpUrl}" --headers "X-API-Key:${COMPOSIO_API_KEY}"`); ``` ## Conclusion You've successfully integrated Esignatures io with Claude Code using Composio's MCP server. Now you can interact with Esignatures io directly from your terminal using natural language commands. Key features of this setup: - Terminal-native experience without switching contexts - Natural language commands for Esignatures io operations - Secure authentication through Composio's managed MCP - Tool Router for dynamic tool discovery and execution Next steps: - Try asking Claude Code to perform various Esignatures io operations - Add more toolkits to your Tool Router session for multi-app workflows - Integrate this setup into your development workflow for increased productivity You can extend this by adding more toolkits, implementing custom workflows, or building automation scripts that leverage Claude Code's capabilities. ## How to build Esignatures io MCP Agent with another framework - [OpenAI Agents SDK](https://composio.dev/toolkits/esignatures_io/framework/open-ai-agents-sdk) - [Claude Agent SDK](https://composio.dev/toolkits/esignatures_io/framework/claude-agents-sdk) - [Claude Cowork](https://composio.dev/toolkits/esignatures_io/framework/claude-cowork) - [Codex](https://composio.dev/toolkits/esignatures_io/framework/codex) - [OpenClaw](https://composio.dev/toolkits/esignatures_io/framework/openclaw) - [Hermes](https://composio.dev/toolkits/esignatures_io/framework/hermes-agent) - [CLI](https://composio.dev/toolkits/esignatures_io/framework/cli) - [Google ADK](https://composio.dev/toolkits/esignatures_io/framework/google-adk) - [LangChain](https://composio.dev/toolkits/esignatures_io/framework/langchain) - [Vercel AI SDK](https://composio.dev/toolkits/esignatures_io/framework/ai-sdk) - [Mastra AI](https://composio.dev/toolkits/esignatures_io/framework/mastra-ai) - [LlamaIndex](https://composio.dev/toolkits/esignatures_io/framework/llama-index) - [CrewAI](https://composio.dev/toolkits/esignatures_io/framework/crew-ai) ## Related Toolkits - [Google Drive](https://composio.dev/toolkits/googledrive) - Google Drive is a cloud storage platform for uploading, sharing, and collaborating on files. It's perfect for keeping your documents accessible and organized across devices. - [Google Docs](https://composio.dev/toolkits/googledocs) - Google Docs is a cloud-based word processor that enables document creation and real-time collaboration. Its seamless sharing and version history make team editing and content management a breeze. - [Google Super](https://composio.dev/toolkits/googlesuper) - Google Super is an all-in-one suite combining Gmail, Drive, Calendar, Sheets, Analytics, and more. It gives you a unified platform to manage your digital life, boosting productivity and organization. - [Affinda](https://composio.dev/toolkits/affinda) - Affinda is an AI-powered document processing platform that automates data extraction from resumes, invoices, and more. It streamlines document-heavy workflows by turning files into structured, actionable data. - [Agility cms](https://composio.dev/toolkits/agility_cms) - Agility CMS is a headless content management system for building and managing digital experiences across platforms. It lets teams update content quickly and deliver omnichannel experiences with ease. - [Algodocs](https://composio.dev/toolkits/algodocs) - Algodocs is an AI-powered platform that automates data extraction from business documents. It delivers fast, secure, and accurate processing without templates or manual training. - [Api2pdf](https://composio.dev/toolkits/api2pdf) - Api2Pdf is a REST API for generating PDFs from HTML, URLs, and documents using powerful engines like wkhtmltopdf and Headless Chrome. It streamlines document conversion and automation for developers and businesses. - [Aryn](https://composio.dev/toolkits/aryn) - Aryn is an AI-powered platform for parsing, extracting, and analyzing data from unstructured documents. Use it to automate document processing and unlock actionable insights from your files. - [Boldsign](https://composio.dev/toolkits/boldsign) - Boldsign is a digital eSignature platform for sending, signing, and tracking documents online. Organizations use it to automate agreements and manage legally binding workflows efficiently. - [Boloforms](https://composio.dev/toolkits/boloforms) - BoloForms is an eSignature platform built for small businesses, offering unlimited signatures, templates, and forms. It simplifies digital document signing and team collaboration at a predictable, fixed price. - [Box](https://composio.dev/toolkits/box) - Box is a cloud content management and file sharing platform for businesses. It helps teams securely store, organize, and collaborate on files from anywhere. - [Carbone](https://composio.dev/toolkits/carbone) - Carbone is a blazing-fast report generator that turns JSON data into PDFs, Word docs, spreadsheets, and more using flexible templates. It lets you automate document creation at scale with minimal code. - [Castingwords](https://composio.dev/toolkits/castingwords) - CastingWords is a transcription service specializing in human-powered, accurate transcripts via a simple API. Get seamless audio-to-text conversion for interviews, meetings, podcasts, and more. - [Cloudconvert](https://composio.dev/toolkits/cloudconvert) - CloudConvert is a powerful file conversion service supporting over 200 file formats. It streamlines converting, compressing, and managing documents, media, and more, all in one place. - [Cloudlayer](https://composio.dev/toolkits/cloudlayer) - Cloudlayer is a document and asset generation service for creating PDFs and images via API or SDKs. It lets you automate high-quality doc creation, saving dev time and reducing manual work. - [Cloudpress](https://composio.dev/toolkits/cloudpress) - Cloudpress is a content export tool for Google Docs and Notion. It automates publishing to your favorite Content Management Systems. - [Contentful graphql](https://composio.dev/toolkits/contentful_graphql) - Contentful graphql is a content delivery API that lets you access Contentful data using GraphQL queries. It gives you efficient, flexible ways to fetch and manage structured content for any digital project. - [Conversion tools](https://composio.dev/toolkits/conversion_tools) - Conversion Tools is an online service for converting documents between formats such as PDF, Word, Excel, XML, and CSV. It lets you automate complex document workflows with just a few clicks. - [Convertapi](https://composio.dev/toolkits/convertapi) - ConvertAPI is a robust file conversion service for documents, images, and spreadsheets. It streamlines programmatic format changes and lets developers automate complex workflows with a single API. - [Craftmypdf](https://composio.dev/toolkits/craftmypdf) - CraftMyPDF is a web-based service for designing and generating PDFs with templates and live data. It streamlines document creation by automating personalized PDFs at scale. ## Frequently Asked Questions ### What are the differences in Tool Router MCP and Esignatures io MCP? With a standalone Esignatures io MCP server, the agents and LLMs can only access a fixed set of Esignatures io tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Esignatures io and many other apps based on the task at hand, all through a single MCP endpoint. ### Can I use Tool Router MCP with Claude Code? Yes, you can. Claude Code 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 Esignatures io tools. ### Can I manage the permissions and scopes for Esignatures io while using Tool Router? Yes, absolutely. You can configure which Esignatures io 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 Esignatures io data and credentials are handled as safely as possible. --- [See all toolkits](https://composio.dev/toolkits) · [Composio docs](https://docs.composio.dev/llms.txt)