How to connect Altoviz to Claude

Connect Claude Web, Desktop and Cowork to Altoviz MCP. Find customer details by email address, update a client's company information, and more using natural language, with authentication handled for you.

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Altoviz

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Altoviz is a cloud-based billing and invoicing platform for businesses. It streamlines online payments, expense tracking, and customizable invoice management.

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Introduction

Claude is Anthropic's AI assistant, available on the web, in the desktop app, and on mobile. Cowork is its agent for knowledge work, and it runs on all of those surfaces too. Connected to your apps, Claude can work with your files and services to accomplish complex tasks on your behalf.

This guide walks you through the easiest and most secure way to connect your Altoviz account to Claude via Composio Connect, enabling it to find customer details by email address, update a client's company information, retrieve current VAT rates for invoices, and more such actions on your behalf without compromising your account security.

Setup is the same on Claude Web, Desktop, and Cowork, and you only need to do it once. The connector is tied to your account, so it's available in all three.

Also integrate Altoviz with

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

Connecting Altoviz to Claude Web, Desktop, and 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 Web, Desktop, and Cowork

4. Connect your Altoviz account

Back in Claude, ask it to connect to Altoviz or give it any Altoviz-related task.

For example, ask Claude to:

"Find customer details by email address"
"Update a client's company information"
"Retrieve current VAT rates for invoices"

It will prompt you to authenticate and authorize access.

That's it. Composio's tools are now available in Claude, and your Altoviz account is ready to use.

What is the Altoviz Claude Connector, and what's possible with it?

The Altoviz MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Altoviz account. It provides structured and secure access to your billing, invoicing, and customer management data, so your agent can manage products, find customers, update records, and retrieve financial information on your behalf.

Product management and creation: Instruct your agent to create new products, update details, or delete products from your Altoviz catalog with ease.
Customer and contact lookup: Effortlessly find customers or contacts by email, enabling quick access to client details and supporting streamlined communication.
Financial classification and VAT management: Let your agent fetch available classifications and VAT rates, ensuring accurate tax handling and financial document setup.
Unit retrieval for transactions: Retrieve all available measurement units in your system, supporting precise product and invoice management.
Customer information updates: Have your agent modify or update customer records, keeping your business data up-to-date without manual intervention.

Troubleshooting

1. Why does Claude not use the Composio connector for Altoviz?

The connector can show as connected, but Claude must use it in each Altoviz conversation.

Click + at the lower left of the chat, or type /.
Hover Connectors.
Turn on Composio.
Ask Claude to connect to Altoviz again.

2. Why does Claude show an MCP server error before Altoviz connects?

Claude can show Couldn't reach the MCP server or Authorization with the MCP server failed when you add the connector for Altoviz.

Check that the connector URL is https://connect.composio.dev/mcp.
Connectors run from Anthropic's cloud, so your device network is usually not the problem.
Add the connector again from Customize > Connectors, then ask Claude to connect Altoviz.
If it fails again, send the error and the ofid_ reference id to support@composio.dev.

3. Why does the Altoviz authorization link not work?

The Composio connector is one server. Your Altoviz account connects separately when Claude asks for it.

If the browser does not open, or the link expires, ask Claude to retry the Altoviz connection.
Composio creates a fresh Altoviz authorization link.
Open that link in your browser and finish the Altoviz sign-in.

4. Why do Altoviz actions fail after they worked before?

The Altoviz connection can expire or lose permission.

Ask Claude to inspect the Altoviz connection.
If the connection is unhealthy, disconnect it when Claude prompts you.
Reconnect the Altoviz account and retry the action.
If Claude shows a permission prompt, approve it before Claude changes data in Altoviz.
If the action still fails with a permission error, check that the connected account has that permission in Altoviz itself.

5. How do I switch to a different Altoviz account?

Claude can manage the Altoviz connection for you.

Ask Claude to disconnect or delete the current Altoviz account.
Ask Claude to connect Altoviz again.
Open the new Composio authorization link for Altoviz.
Sign in with the other Altoviz account in the browser.
After the account connects, ask Claude to retry the Altoviz task.

6. Why is my Altoviz connection missing in Claude Desktop or on a Team plan?

The connector belongs to your Claude account, so your Altoviz connection works in Claude Web, Desktop, and Cowork.

In Claude Desktop, open Customize > Connectors.
Next to Composio, click ⋮ and click Clear cache.
If Altoviz tools still do not appear, click ⋮, disconnect, remove the connector, and add it again.
On Team or Enterprise, an Owner or Primary Owner must enable the connector before you can connect Altoviz.

TOOLS

Supported Tools

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

Create Contact

Creates a new contact in the Altoviz system.

Create Customer

Creates a new customer in Altoviz.

Create Customer Family

Creates a new customer family in Altoviz for categorizing and organizing customers into groups.

Create Product

Creates a new product in the Altoviz system.

Create Product Family

Tool to create a new product family in Altoviz.

Create Receipt

Creates a new receipt in the Altoviz system to record customer payments.

Create Sale Credit

Creates a new draft credit note (avoir) in Altoviz.

Create Sale Invoice

Creates a new draft sale invoice in Altoviz.

Delete Colleague

Tool to delete a colleague from Altoviz.

Delete Customer

Tool to delete a customer from Altoviz.

Delete Customer Family

Tool to delete a customer family from Altoviz.

Delete Product

This tool allows you to delete an existing product from Altoviz.

Delete Product Family

Tool to delete a product family from Altoviz.

Delete Receipt

Tool to delete a receipt from Altoviz.

Delete Draft Sale Credit

Tool to delete a draft credit from Altoviz.

Delete Sale Invoice

Tool to delete a draft sale invoice from Altoviz.

Delete Sale Quote

Tool to delete a sale quote from Altoviz.

Delete Supplier

Tool to delete a supplier from Altoviz.

Download Purchase Invoice

Tool to download a purchase invoice as a PDF file from Altoviz.

Download Sale Credit PDF

Tool to download a sale credit as a PDF file from Altoviz.

Download Sale Invoice PDF

Tool to download a sale invoice as a PDF file from Altoviz.

Find Contact by Email

This tool allows searching for contacts in Altoviz using an email address.

Find Customer by Email

This tool allows you to find a customer in Altoviz by their email address.

Find Product by Number

Search for a product in Altoviz by its product number/SKU.

Find Product by Number or Internal ID

Tool to find a product in Altoviz by exact product number or internal ID.

Find Receipt by Internal ID

Tool to find receipts in Altoviz by customer internal ID.

Find Sale Credits

Tool to find sale credits in Altoviz.

Find Sale Invoices

Tool to find sale invoices in Altoviz.

Find Sale Quotes

Tool to find sale quotes in Altoviz.

Get Classifications List

This tool retrieves a list of classifications from the Altoviz platform.

Get Colleague by ID

Tool to retrieve a colleague's details from Altoviz by their ID.

Get Contact by ID

Tool to retrieve a contact by its unique ID from Altoviz.

Get Current User

Tool to retrieve the current authenticated user's information from Altoviz.

Get Customer by ID

Tool to retrieve a customer by their ID from Altoviz.

Get Customer by Internal ID

Tool to retrieve a single customer from Altoviz by their internal ID.

Get Customer Contacts

Tool to retrieve all contacts associated with a specific customer in Altoviz.

Get Customer Family

Tool to retrieve a customer family by ID from Altoviz.

Get Product by ID

Tool to retrieve a product by its unique ID in Altoviz.

Get Product Family by ID

Tool to retrieve a specific product family by its ID from Altoviz.

Get Receipt by ID

Tool to retrieve a receipt by its ID from Altoviz.

Get Sale Credit by ID

Tool to retrieve a sale credit by its ID from Altoviz.

Get Sale Invoice by ID

Tool to retrieve a sale invoice by its ID from Altoviz.

Get Settings

Tool to retrieve application settings from Altoviz.

Get Supplier by ID

Tool to retrieve a supplier by their ID from Altoviz.

Get Supplier Contacts

Tool to retrieve all contacts associated with a specific supplier in Altoviz.

Get Units List

This tool retrieves a list of all available units in the Altoviz system.

Get VAT Rates

This tool retrieves a list of all available VAT rates from Altoviz.

List Colleagues

Retrieves a list of colleagues from Altoviz.

List Contacts

Tool to retrieve a list of contacts from Altoviz with optional filtering and pagination.

List Customer Families

Tool to list customer families from Altoviz.

List Customers

Tool to retrieve a paginated list of customers from Altoviz.

List Product Families

Tool to retrieve a list of product families from Altoviz.

List Receipts

Tool to retrieve a list of receipts from Altoviz.

List Sale Credits

Tool to retrieve a list of sale credits from Altoviz.

List Sale Invoices

Tool to retrieve a list of sale invoices from Altoviz.

List Sale Quotes

Tool to retrieve a list of sale quotes from Altoviz.

List Suppliers

Tool to retrieve a paginated list of suppliers from Altoviz.

List Webhooks

Tool to retrieve all configured webhooks from Altoviz.

Tool to register a new webhook in Altoviz.

Test API Key

Tool to test API key validity and retrieve basic account information.

Unregister Webhook

Tool to unregister a webhook from Altoviz.

Update Colleague Information

Updates an existing colleague's information in Altoviz.

Update Customer Information

Updates an existing customer's information in Altoviz.

Update Receipt

Updates an existing receipt in Altoviz.

Update Sale Credit

Tool to update a draft credit note in Altoviz.

Update Supplier Information

Updates an existing supplier's information in Altoviz.

Upload Purchase Invoice

Tool to upload and create a new purchase invoice from a file (PDF or image format).

FRAMEWORKS

How to build Altoviz MCP Agent with another framework

OpenAI Agents SDK

Use Altoviz MCP with OpenAI Agents SDK

Claude Agent SDK

Use Altoviz MCP with Claude Agent SDK

Claude Code

Use Altoviz MCP with Claude Code

Codex

Use Altoviz MCP with Codex

OpenClaw

Use Altoviz MCP with OpenClaw

Hermes

Use Altoviz MCP with Hermes

Google ADK

Use Altoviz MCP with Google ADK

LangChain

Use Altoviz MCP with LangChain

Vercel AI SDK

Use Altoviz MCP with Vercel AI SDK

Mastra AI

Use Altoviz MCP with Mastra AI

LlamaIndex

Use Altoviz MCP with LlamaIndex

CrewAI

Use Altoviz MCP with CrewAI

Pydantic AI

Use Altoviz MCP with Pydantic AI

AutoGen

Use Altoviz MCP with AutoGen

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FAQ

Frequently asked questions

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

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

Start with Altoviz.It takes 30 seconds.

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How to connect Altoviz to Claude

Connect Altoviz without auth hassles

Introduction

Also integrate Altoviz with

Connecting Altoviz to Claude Web, Desktop, and Cowork

What is the Altoviz Claude Connector, and what's possible with it?

Troubleshooting

1. Why does Claude not use the Composio connector for Altoviz?

2. Why does Claude show an MCP server error before Altoviz connects?

3. Why does the Altoviz authorization link not work?

4. Why do Altoviz actions fail after they worked before?

5. How do I switch to a different Altoviz account?

6. Why is my Altoviz connection missing in Claude Desktop or on a Team plan?

Supported Tools

How to build Altoviz MCP Agent with another framework

OpenAI Agents SDK

Claude Agent SDK

Claude Code

Codex

OpenClaw

Hermes

Google ADK

LangChain

Vercel AI SDK

Mastra AI

LlamaIndex

CrewAI

Pydantic AI

AutoGen

Explore Other Toolkits

Stripe

44API

Airwallex

Aiwyn Tax MCP

Frequently asked questions

What are the differences in Tool Router MCP and Altoviz MCP?+

Can I use Tool Router MCP with Claude Cowork?+

Can I manage the permissions and scopes for Altoviz while using Tool Router?+

How safe is my data with Composio Tool Router?+

Start with Altoviz.It takes 30 seconds.