Can the AI alter invoices or update CRM statuses remotely?

No, it cannot. The agent is explicitly configured to possess pure Read-Only access capability via API V2 GET methodology endpoints (Such as `list_companies` and `get_invoices`). Your operational data remains completely immutable regardless of what you prompt.

Can I query a specific estimate document generated for a client?

Yes. While the integration allows sweeping over lists using `list_estimates`, the LLM can interpret the raw data to give you the summary of any pending quotes directly tied to associated internal pipelines effortlessly.

Does it track sales activities like recent calls?

Yes—by prompting your LLM with the underlying `list_activities` directive, you immediately gain access to the chronological logs outlining calls, meetings, generic events, and tasks created by your native Sales Development Representatives (SDRs).

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

Name: Sellsy
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 Sellsy as an MCP tool provider through the 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

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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="sellsy_agent",
    instruction=(
        "You help users interact with Sellsy "
        "using 12 available tools."
    ),
    tools=[mcp_tools],
)

Fully ManagedVinkius Servers

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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 Sellsy MCP Server

Connect the Sellsy CRM API to your AI workflow to unlock conversational oversight over your entire French-designed commercial hub. By providing exactly Read-Only access, your agent can securely map ongoing deals, review invoice payment statuses, and fetch complete dossiers on existing catalog items and contacts.

Google ADK natively supports Sellsy as an MCP tool provider — declare the 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

Client & Prospecting Analysis — Use natural language to search companies, retrieve full metadata via company_id, and pull associated granular contacts directly into the conversational context
Sales Pipeline Auditing — Ask the agent to list all active 'opportunities' and drill down into a specific Deal ID to review its exact stage and monetary potential
Billing Integrity — Prompt your LLM to sweep your current draft, sent, and overdue invoices, including exact estimates given out recently to big leads
CRM Activity Surveillance — Seamlessly extract chronological activity feeds (meetings, calls, tasks) to compile end-of-week reporting automatically

The Sellsy 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 Sellsy to Google ADK via MCP

Follow these steps to integrate the Sellsy 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 Sellsy via MCP

Why Use Google ADK with the Sellsy MCP Server

Google ADK provides unique advantages when paired with Sellsy 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 Sellsy

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 Sellsy tools with BigQuery, Vertex AI, and Cloud Functions

Sellsy + Google ADK Use Cases

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

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

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

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

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

Sellsy MCP Tools for Google ADK (12)

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

get_company

Get detailed information about a specific company

get_contact

Get detailed information about a specific contact

get_deal

Get full details of a specific deal (amount, status, pipeline step, company)

get_invoice

Get full details of a specific invoice (amount, status, due date)

list_activities

List recent CRM activities (calls, emails, meetings, tasks)

list_companies

List all companies (clients, prospects) in the CRM

list_contacts

List all contacts in the CRM

list_deals

List all deals (opportunities) in the sales pipeline

list_estimates

List all estimates (quotes) sent to prospects

list_invoices

List all invoices (draft, sent, paid, overdue)

list_items

List all products and services in the catalog

search_companies

Search companies by name or keyword

Example Prompts for Sellsy in Google ADK

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

"Identify pending Deals on Sellsy CRM and extract their projected monetary values."

"Pull the contact information and status for the primary user of 'Company XYZ'."

"Summarize the overarching status of my Sellsy invoices list."

Troubleshooting Sellsy MCP Server with Google ADK

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

McpToolset not found

Update: pip install --upgrade google-adk

Sellsy + Google ADK FAQ

Common questions about integrating Sellsy 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.