Can the agent create new work items using templates?

Yes, the `create_work_item` tool allows specifying a work type, which corresponds to your templates in Karbon. This helps in quickly starting new client engagements.

Can I filter contacts to see only organizations?

Absolutely. Use the `list_organizations` tool to retrieve only organizational entities, or `list_people` to see individual contacts.

Is it possible to view the tasks inside a specific project?

Yes! Use the `list_work_tasks` tool with the unique work item key to see all associated checklist items and tasks.

Karbon MCP Server for Google ADK 12 tools — connect in under 2 minutes

Name: Karbon
Availability: InStock
Author: Vinkius

google.github.io/adk-docs/tools/mcp-tools

Built by Vinkius GDPR 12 Tools SDK

Google Agent Development Kit (ADK) is Google's framework for building production AI agents. Add Karbon as an MCP tool provider through Vinkius and your ADK agents can call every tool with full schema introspection.

Get MCP Server for AI Agents

ASK AI ABOUT THIS MCP SERVER

Open in ChatGPT Open in Claude Open in Perplexity

Vinkius supports streamable HTTP and SSE.

python

from google.adk.agents import Agent
from google.adk.tools.mcp_tool import McpToolset
from google.adk.tools.mcp_tool.mcp_session_manager import (
    StreamableHTTPConnectionParams,
)

# Your Vinkius token. get it at cloud.vinkius.com
mcp_tools = McpToolset(
    connection_params=StreamableHTTPConnectionParams(
        url="https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp",
    )
)

agent = Agent(
    model="gemini-2.5-pro",
    name="karbon_agent",
    instruction=(
        "You help users interact with Karbon "
        "using 12 available tools."
    ),
    tools=[mcp_tools],
)

Fully ManagedVinkius Servers

60%Token savings

High SecurityEnterprise-grade

IAMAccess control

EU AI ActCompliant

DLPData protection

V8 IsolateSandboxed

Ed25519Audit chain

<40msKill switch

Stream every event to Splunk, Datadog, or your own webhook in real-time

* Every MCP server runs on Vinkius-managed infrastructure inside AWS - a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts optimized for native MCP execution. See our infrastructure

About Karbon MCP Server

Connect your Karbon account to any AI agent to streamline your accounting firm's operations. This MCP server allows your agent to interact with Karbon's powerful workflow and practice management features.

Google ADK natively supports Karbon as an MCP tool provider. declare Vinkius Edge URL and the framework handles discovery, validation, and execution automatically. Combine 12 tools with Gemini's long-context reasoning for complex multi-tool workflows, with production-ready session management and evaluation built in.

What you can do

Contact Management — List, retrieve, and create contacts (both People and Organizations) to maintain a clean CRM
Workflow Automation — List and create work items, projects, and tasks to keep track of every engagement
Staff Visibility — Query users and firm members to identify assignees and team availability
Note Inspection — Access historical notes and comments recorded against any contact profile
Work Progress — Get detailed status updates and metadata for specific work items and associated tasks

The Karbon MCP Server exposes 12 tools through the Vinkius. Connect it to Google ADK in under two minutes — no API keys to rotate, no infrastructure to provision, no vendor lock-in. Your configuration, your data, your control.

How to Connect Karbon to Google ADK via MCP

Follow these steps to integrate the Karbon MCP Server with Google ADK.

Install Google ADK

Run pip install google-adk

Replace the token

Replace [YOUR_TOKEN_HERE] with your Vinkius token

Create the agent

Save the code above and integrate into your ADK workflow

Explore tools

The agent will discover 12 tools from Karbon via MCP

Why Use Google ADK with the Karbon MCP Server

Google ADK provides unique advantages when paired with Karbon through the Model Context Protocol.

Google ADK natively supports MCP tool servers. declare a tool provider and the framework handles discovery, validation, and execution

Built on Gemini models, ADK provides long-context reasoning ideal for complex multi-tool workflows with Karbon

Production-ready features like session management, evaluation, and deployment come built-in. not bolted on

Seamless integration with Google Cloud services means you can combine Karbon tools with BigQuery, Vertex AI, and Cloud Functions

Karbon + Google ADK Use Cases

Practical scenarios where Google ADK combined with the Karbon MCP Server delivers measurable value.

Enterprise data agents: ADK agents query Karbon and cross-reference results with internal databases for comprehensive analysis

Multi-modal workflows: combine Karbon tool responses with Gemini's vision and language capabilities in a single agent

Automated compliance checks: schedule ADK agents to query Karbon regularly and flag policy violations or configuration drift

Internal tool platforms: build self-service agent platforms where teams connect their own MCP servers including Karbon

Karbon MCP Tools for Google ADK (12)

These 12 tools become available when you connect Karbon to Google ADK via MCP:

create_contact

Requires a name and contact type (Person or Organization). Create a new contact in Karbon

create_work_item

Requires a title and a work type. Create a new work item (project)

get_contact

Get detailed information for a specific contact

get_work_item

Get details for a specific work item

list_contact_notes

List notes for a specific contact

list_contacts

Useful for a broad overview of clients and associates. List all contacts (Organizations and People)

list_organizations

). List only organizational contacts

list_people

). List only individual people contacts

list_users

Use this to identify assignees or firm members. List all users in the Karbon firm

list_work_items

Use this to track firm workflows and engagements. List all work items (workflows)

list_work_tasks

List tasks for a specific work item

update_work_item

Update an existing work item

Example Prompts for Karbon in Google ADK

Ready-to-use prompts you can give your Google ADK agent to start working with Karbon immediately.

"List all my organizational contacts in Karbon."

"Show me the tasks for the work item with key 'WORK_123'."

"Create a new organization contact named 'Tech Pioneers'."

Troubleshooting Karbon MCP Server with Google ADK

Common issues when connecting Karbon to Google ADK through the Vinkius, and how to resolve them.

McpToolset not found

Update: pip install --upgrade google-adk

Karbon + Google ADK FAQ

Common questions about integrating Karbon MCP Server with Google ADK.

How does Google ADK connect to MCP servers?

Import the MCP toolset class and pass the server URL. ADK discovers and registers all tools automatically, making them available to your agent's tool-use loop.

Can ADK agents use multiple MCP servers?

Yes. Declare multiple MCP tool providers in your agent configuration. ADK merges all tool schemas and the agent can call tools from any server in a single turn.

Which Gemini models work best with MCP tools?

Gemini 2.0 Flash and Pro models both support function calling required for MCP tools. Flash is recommended for latency-sensitive use cases, Pro for complex reasoning.