How to connect Nusii proposals to Claude Cowork

Cowork is Anthropic's AI agent for knowledge work. Think of it as Claude Code for everything else. It works autonomously with your computer, local files, and applications to accomplish complex tasks. This guide walks you through the easiest and most secure way to connect your Nusii proposals account to Cowork via Composio Connect, enabling it to create a new proposal for Acme Corp, send a follow-up email for pending proposal, list all proposals sent in the last month, and more such actions on your behalf without compromising your account security.

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Nusii proposals

Api Key

Nusii proposals is proposal software for creating, sending, and managing client proposals online. It streamlines the proposal process, saving you time and impressing clients.

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Introduction

Cowork is Anthropic's AI agent for knowledge work. Think of it as Claude Code for everything else. It works autonomously with your computer, local files, and applications to accomplish complex tasks.

This guide walks you through the easiest and most secure way to connect your Nusii proposals account to Cowork via Composio Connect, enabling it to create a new proposal for Acme Corp, send a follow-up email for pending proposal, list all proposals sent in the last month, and more such actions on your behalf without compromising your account security.

Also integrate Nusii proposals with

OpenAI Agents SDK Claude Agent SDK Claude Code Codex OpenClaw Hermes CLI Google ADK LangChain Vercel AI SDK Mastra AI LlamaIndex CrewAI

Connecting Nusii proposals to Claude Cowork

1. Open Customize

In Claude Desktop, click Customize in the left sidebar, then select Connectors and click the + icon at the top.

Claude Desktop connectors screen with Add custom connector selected

2. Add the Composio MCP server

Click Add custom connector and paste in the Composio MCP server URL:

bash

https://connect.composio.dev/mcp

Add custom connector dialog with Composio MCP server URL

3. Authorize in your browser

Click Connect. You'll be redirected to a browser window where you can authorize Composio to continue.

Composio authorization screen for Claude Cowork

4. Connect your Nusii proposals account

Back in Cowork, ask the agent to connect to Nusii proposals or give it any Nusii proposals-related task.

For example, ask Cowork to:

"Create a new proposal for Acme Corp"
"Send a follow-up email for pending proposal"
"List all proposals sent in the last month"

It will prompt you to authenticate and authorize access.

That's it. Composio's tools are now available in Cowork, and your Nusii proposals account is ready to use.

What is Claude Cowork?

Claude Cowork is Anthropic's agent for general knowledge work. It can use your computer, files, and connected applications to complete longer-running tasks across your work tools.

With Composio Connect, Cowork can securely access apps like Nusii proposals through MCP without you sharing account credentials directly with the agent.

What is the Nusii proposals MCP server, and what's possible with it?

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

TOOLS

Supported Tools

Every Nusii proposals action and event your agent gets out of the box.

Archive Proposal

Tool to archive a specific proposal in Nusii.

Create Client

Tool to create a new client in Nusii Proposals.

Create Line Item

Tool to create a line item within a proposal section.

Create Proposal

Tool to create a new proposal in Nusii.

Create Section

Tool to create a section for a proposal or template in Nusii Proposals.

Create Webhook Endpoint

Tool to create a webhook endpoint to subscribe to Nusii events.

Delete a client

Tool to delete a specific client from Nusii account.

Delete Line Item

Tool to delete a line item from Nusii.

Delete a proposal

Tool to delete a proposal from the system.

Delete a section

Tool to delete a specific section from Nusii.

Delete Webhook Endpoint

Tool to delete a specific webhook endpoint from the system.

Get Account Me

Tool to retrieve authenticated user's personal account information and settings.

Get Client

Tool to retrieve a single client from Nusii using their unique identifier.

Get Proposal

Tool to retrieve a single proposal with complete details and sections.

Get Section

Tool to retrieve a single section from a proposal or template in Nusii.

Get Webhook Endpoint

Tool to retrieve a single webhook endpoint configuration.

List Clients

Tool to retrieve all clients associated with the account.

List Line Items

Tool to retrieve all line items from Nusii Proposals with pagination support.

List Proposal Activities

Tool to retrieve all proposal activities with optional filtering by proposal or client ID.

List Proposals

Tool to retrieve all proposals from your Nusii account with pagination and filtering options.

List Section Line Items

Tool to retrieve all line items from a specific section.

List Sections

Tool to retrieve all sections with optional filtering for proposals or templates.

List Themes

Tool to retrieve all available themes for proposals in Nusii.

List Users

Tool to retrieve all users in paginated format.

List Webhook Endpoints

Tool to retrieve all webhook endpoints configured for your Nusii account.

Update Client

Tool to update an existing client's information in Nusii.

Update Line Item

Tool to update an existing line item in Nusii proposals.

Update Proposal

Tool to update an existing proposal in Nusii.

Update Section

Tool to update an existing section in a proposal or template.

FRAMEWORKS

How to build Nusii proposals MCP Agent with another framework

OpenAI Agents SDK

Use Nusii proposals MCP with OpenAI Agents SDK

Claude Agent SDK

Use Nusii proposals MCP with Claude Agent SDK

Claude Code

Use Nusii proposals MCP with Claude Code

Codex

Use Nusii proposals MCP with Codex

OpenClaw

Use Nusii proposals MCP with OpenClaw

Hermes

Use Nusii proposals MCP with Hermes

CLI

Use Nusii proposals MCP with CLI

Google ADK

Use Nusii proposals MCP with Google ADK

LangChain

Use Nusii proposals MCP with LangChain

Vercel AI SDK

Use Nusii proposals MCP with Vercel AI SDK

Mastra AI

Use Nusii proposals MCP with Mastra AI

LlamaIndex

Use Nusii proposals MCP with LlamaIndex

CrewAI

Use Nusii proposals MCP with CrewAI

MORE TOOLKITS

Explore Other Toolkits

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Airtable

Oauth2Api Key

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.

Asana

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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.

FAQ

Frequently asked questions

With a standalone Nusii proposals MCP server, the agents and LLMs can only access a fixed set of Nusii proposals tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Nusii proposals and many other apps based on the task at hand, all through a single MCP endpoint.

Yes, you can. Claude Cowork 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 Nusii proposals tools.

Yes, absolutely. You can configure which Nusii proposals 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.

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 Nusii proposals data and credentials are handled as safely as possible.

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Customer stories

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Karan skipped his own birthday party to fix our critical issue. It was 10pm and he diverted his Waymo to help us instead. This really sets the bar — it shows the commitment you need when users rely on your software.

Harsha Gaddipati

Co-founder, Slashy

A lot of students tell us that the moment their connected tools start talking to each other inside Opennote feels almost magical. The agent just knows them, and it's immensely helped keep new users on the platform.

Abhi Arya

Co-founder, Opennote

We chose Composio over Pipedream because it delivered depth where it mattered — niche tools and tricky edge cases other platforms simply ignored. That gave us confidence to scale without compromising.

Nirman Dave

CEO, Zams

As a solo builder, shipping fast is life or death. The only way I can outcompete incumbents is by outmanoeuvring them. Getting bogged down managing agent auth would have been a death sentence.

Ryan Yu

Founder, Extra Thursday

Before Composio, adding tool integrations was slow and resource-intensive. Each one could take weeks of engineering time, and maintaining them meant constantly keeping up with API changes.

Tomisin Jenrola

Founder & CEO, SwarmZero

With hands-on help from their founder, we integrated Gmail and Google Drive in just 30 minutes. This level of personal support and commitment is exactly what startups should strive for.

Jerome Leclanche

Co-Founder, Ingram Technologies