# How to integrate Oksign MCP with Atomic Agent

```json
{
  "title": "How to integrate Oksign MCP with Atomic Agent",
  "toolkit": "Oksign",
  "toolkit_slug": "oksign",
  "framework": "Atomic Agent",
  "framework_slug": "atomic-agent",
  "url": "https://composio.dev/toolkits/oksign/framework/atomic-agent",
  "markdown_url": "https://composio.dev/toolkits/oksign/framework/atomic-agent.md",
  "updated_at": "2026-08-11T13:04:47.414Z"
}
```

## 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 Oksign.
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 Oksign account. See the [Atomic Agent documentation](https://atomicagent.io/docs/?cta_placement=atomic-agent-docs) for installation instructions.

## Also integrate Oksign with

- [OpenAI Agents SDK](https://composio.dev/toolkits/oksign/framework/open-ai-agents-sdk)
- [Claude Agent SDK](https://composio.dev/toolkits/oksign/framework/claude-agents-sdk)
- [Claude Code](https://composio.dev/toolkits/oksign/framework/claude-code)
- [Claude Cowork](https://composio.dev/toolkits/oksign/framework/claude-cowork)
- [Codex](https://composio.dev/toolkits/oksign/framework/codex)
- [OpenClaw](https://composio.dev/toolkits/oksign/framework/openclaw)
- [Hermes](https://composio.dev/toolkits/oksign/framework/hermes-agent)
- [Google ADK](https://composio.dev/toolkits/oksign/framework/google-adk)
- [LangChain](https://composio.dev/toolkits/oksign/framework/langchain)
- [Vercel AI SDK](https://composio.dev/toolkits/oksign/framework/ai-sdk)
- [Mastra AI](https://composio.dev/toolkits/oksign/framework/mastra-ai)
- [LlamaIndex](https://composio.dev/toolkits/oksign/framework/llama-index)
- [CrewAI](https://composio.dev/toolkits/oksign/framework/crew-ai)
- [Pydantic AI](https://composio.dev/toolkits/oksign/framework/pydantic-ai)
- [AutoGen](https://composio.dev/toolkits/oksign/framework/autogen)

## TL;DR

### How Atomic Agent connects to Oksign
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 Oksign to Atomic Agent

### Connect Oksign 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 Oksign. It searches Composio for the right tool.
- On first use, open the sign-in link returned in the chat. Connect your Oksign 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 Oksign MCP server, and what's possible with it?

The Oksign MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Oksign account. It provides structured and secure access so your agent can perform Oksign operations on your behalf.

## Supported Tools

| Tool slug | Name | Description |
|---|---|---|
| `OKSIGN_BRIEFCASE_REMOVE` | Remove Briefcase | Tool to remove a previously created briefcase from OKSign platform. Use when you need to delete a briefcase that is no longer needed. The briefcase is identified by the token received when it was created. |
| `OKSIGN_BRIEFCASE_RETRIEVE` | Retrieve Briefcase Information | Tool to retrieve a previously uploaded briefcase tokeninfo for consultation. Use when you need to examine bundled document properties and signer requirements without re-creating the briefcase. |
| `OKSIGN_CONTACTS_REMOVE` | Remove Contacts | Tool to remove specified contacts from the account's contact list. Use when you need to delete one or more contacts by providing their name and email. |
| `OKSIGN_CONTACTS_RETRIEVE` | Retrieve Contacts | Tool to retrieve the list of contacts stored in the account. Use when you need to access all contacts with their details including name, email, mobile number, and role. |
| `OKSIGN_UPLOAD_CONTACTS` | Upload Contacts | Tool to insert or update contact information in the account's contact list. Use when you need to add new contacts or update existing ones with details like name, email, phone, mobile, address, company, or identifier. |
| `OKSIGN_RETRIEVE_ACCOUNT_CREDITS` | Retrieve Account Credits | Tool to retrieve account credit balance and storage information. Use when you need to check available credits or storage capacity. |
| `OKSIGN_CHECK_DOCUMENT_EXISTS` | Check Document Exists | Tool to check if a signed or unsigned document still exists on the OKSign platform. Use when you need to verify document availability before performing operations. |
| `OKSIGN_REMOVE_DOCUMENT` | Remove Document | Tool to remove a signed or unsigned document from the OKSign platform. Use when you need to delete a document and its signed copies from storage. Note: If document is removed immediately after signing while platform processes notifications, service may return FAILED status with retry message. |
| `OKSIGN_UPLOAD_DOCUMENT` | Upload Document | Tool to upload a PDF or Word document to OKSign platform for completion and/or signing. Use when you need to add a new document that requires signatures. Maximum file size is 10 MB. Supported formats: PDF, DOC, DOCX. |
| `OKSIGN_CREATE_EDITOR_EXPRESS_SESSION` | Create Editor Express Session | Tool to invoke the OKSign Editor Express for modifying documents and form descriptors. Use when you need to open documents in an interactive editor where users can add signature fields, form fields, and configure signing workflows. The editor URL returned can be embedded or redirected to within your application. |
| `OKSIGN_UPLOAD_FORM_DESCRIPTOR` | Upload Form Descriptor | Tool to upload form descriptor defining signature fields and other field types to a document. Use when you need to add form fields, signature areas, and configure signing workflows for a document. |
| `OKSIGN_GET_ACTIVE_DOCUMENTS` | Get Active Documents | Tool to retrieve all active document IDs and properties from OKsign account. Use when you need to list documents visible in the Active Documents tab. Note: Rate limited to 1 request per 3 minutes. |
| `OKSIGN_RETRIEVE_LINKED_DOCUMENT_LIST` | Retrieve Linked Document List | Tool to retrieve the list of linked signed or source document IDs related to a specific document. Use when you need to find linked documents (either the signed version of a source document, or the source of a signed document). |
| `OKSIGN_UPLOAD_NOTIFICATIONS` | Upload Notifications | Tool to upload notifications defining email(s) and/or SMS(es) to be sent to signer(s) with signing links. Use when you need to send notification emails or SMS messages to document signers. |
| `OKSIGN_UPDATE_ORGANIZATION_TOKEN_INFO` | Update Organization Token Info | Tool to update organizational token information and settings for the account. Use when you need to configure or modify callback URL, webhook URL, or return URL for the organization's token. |
| `OKSIGN_REMOVE_SIGNEXPRESS_TOKEN` | Remove SignExpress Token | Tool to remove a previously uploaded SignExpress tokeninfo JSONObject from the OKSign platform. Use when you need to clean up or invalidate a SignExpress token that was created for sign button integration. |
| `OKSIGN_RETRIEVE_USERS` | Retrieve Users | Tool to retrieve the list of users associated with the OkSign account. Use when you need to get all users in an account. |

## 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 Oksign from Atomic Agent
With your account connected, ask Atomic Agent to work with Oksign 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 Oksign MCP Agent with another framework

- [OpenAI Agents SDK](https://composio.dev/toolkits/oksign/framework/open-ai-agents-sdk)
- [Claude Agent SDK](https://composio.dev/toolkits/oksign/framework/claude-agents-sdk)
- [Claude Code](https://composio.dev/toolkits/oksign/framework/claude-code)
- [Claude Cowork](https://composio.dev/toolkits/oksign/framework/claude-cowork)
- [Codex](https://composio.dev/toolkits/oksign/framework/codex)
- [OpenClaw](https://composio.dev/toolkits/oksign/framework/openclaw)
- [Hermes](https://composio.dev/toolkits/oksign/framework/hermes-agent)
- [Google ADK](https://composio.dev/toolkits/oksign/framework/google-adk)
- [LangChain](https://composio.dev/toolkits/oksign/framework/langchain)
- [Vercel AI SDK](https://composio.dev/toolkits/oksign/framework/ai-sdk)
- [Mastra AI](https://composio.dev/toolkits/oksign/framework/mastra-ai)
- [LlamaIndex](https://composio.dev/toolkits/oksign/framework/llama-index)
- [CrewAI](https://composio.dev/toolkits/oksign/framework/crew-ai)
- [Pydantic AI](https://composio.dev/toolkits/oksign/framework/pydantic-ai)
- [AutoGen](https://composio.dev/toolkits/oksign/framework/autogen)

## Related Toolkits

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- [Google Sheets](https://composio.dev/toolkits/googlesheets) - 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](https://composio.dev/toolkits/notion) - Notion is a collaborative workspace for notes, docs, wikis, and tasks. It streamlines team knowledge, project tracking, and workflow customization in one place.
- [Airtable](https://composio.dev/toolkits/airtable) - 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.
- [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.
- [Asana](https://composio.dev/toolkits/asana) - 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.
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- [Linear](https://composio.dev/toolkits/linear) - Linear is a modern issue tracking and project planning tool for fast-moving teams. It helps streamline workflows, organize projects, and boost productivity.
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- [Clickup](https://composio.dev/toolkits/clickup) - ClickUp is an all-in-one productivity platform for managing tasks, docs, goals, and team collaboration. It streamlines project workflows so teams can work smarter and stay organized in one place.
- [Monday](https://composio.dev/toolkits/monday) - Monday.com is a customizable work management platform for project planning and collaboration. It helps teams organize tasks, automate workflows, and track progress in real time.
- [ActiveMerge](https://composio.dev/toolkits/active_merge) - ActiveMerge is a document automation platform for generating documents, images, merged files, and e-signature workflows. It helps teams turn templates and stored files into finished, shareable documents faster.
- [Addressfinder](https://composio.dev/toolkits/addressfinder) - Addressfinder is a data quality platform for verifying addresses, emails, and phone numbers. It helps you ensure accurate customer and contact data every time.
- [Aeroleads](https://composio.dev/toolkits/aeroleads) - Aeroleads is a B2B lead generation platform for finding business emails and phone numbers. Grow your sales pipeline faster with powerful prospecting tools.
- [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.
- [Agiled](https://composio.dev/toolkits/agiled) - Agiled is an all-in-one business management platform for CRM, projects, and finance. It helps you streamline workflows, consolidate client data, and manage business processes in one place.
- [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.
- [AirOps MCP](https://composio.dev/toolkits/airops_mcp) - AirOps MCP is AirOps' managed content platform exposing brand context, knowledge bases, and workflows. Use it to give agents brand-aware content, automate content workflows, and track Brand Kit edits.
- [Airparser](https://composio.dev/toolkits/airparser) - Airparser is an AI-powered parser for extracting structured data from emails, documents, PDFs, and files. It turns messy inbound content into clean fields your apps and workflows can use.

## Frequently Asked Questions

### What are the differences in Tool Router MCP and Oksign MCP?

With a standalone Oksign MCP server, the agents and LLMs can only access a fixed set of Oksign tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Oksign 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 Oksign tools.

### Can I manage the permissions and scopes for Oksign while using Tool Router?

Yes, absolutely. You can configure which Oksign 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 Oksign data and credentials are handled as safely as possible.

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