Unpaywall (Open Access Papers) MCP Server for Google ADKGive Google ADK instant access to 1 tools to Get Article Oa Status

Name: Unpaywall (Open Access Papers)
Price: 29 USD
Availability: InStock
Rating: 5.0 (1 reviews)
Author: Vinkius

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

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The Unpaywall (Open Access Papers) MCP Server for Google ADK is a standout in the Knowledge Management category — giving your AI agent 1 tools to work with, ready to go from day one.

Built for AI Agents by Vinkius

Vinkius delivers Streamable HTTP and SSE to any MCP client

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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="unpaywall_open_access_papers_agent",
    instruction=(
        "You help users interact with Unpaywall (Open Access Papers) "
        "using 1 available tools."
    ),
    tools=[mcp_tools],
)

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* 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 Unpaywall (Open Access Papers) MCP Server

Connect to the Unpaywall database to instantly find legal, open-access versions of scholarly papers. This server allows your AI agent to bypass paywalls by locating freely available PDFs and repository versions of research articles using their Digital Object Identifier (DOI).

Google ADK natively supports Unpaywall (Open Access Papers) as an MCP tool provider. declare Vinkius Edge URL and the framework handles discovery, validation, and execution automatically. Combine 1 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

OA Status Verification — Instantly check if a specific scholarly article is available for free under an Open Access license.
PDF Retrieval — Get direct links to legal, full-text PDF versions of research papers hosted on publisher sites or institutional repositories.
Metadata Inspection — Retrieve information about the type of Open Access (gold, green, bronze, etc.) and the hosting source.
Research Automation — Streamline literature reviews by letting your agent automatically find accessible versions of cited works.

The Unpaywall (Open Access Papers) MCP Server exposes 1 tools through the Vinkius. Connect it to Google ADK in under two minutes — credentials fully managed, no infrastructure to provision, no vendor lock-in. Your configuration, your data, your control.

All 1 Unpaywall (Open Access Papers) tools available for Google ADK

When Google ADK connects to Unpaywall (Open Access Papers) through Vinkius, your AI agent gets direct access to every tool listed below — spanning open-access, scholarly-articles, academic-research, and more. Every call runs in a secure, isolated environment with full audit visibility. Beyond a simple connection, you get real-time monitoring of agent activity, enterprise governance, and optimized token usage.

get

Get article oa status on Unpaywall (Open Access Papers)

Retrieve Open Access status and locations for a specific DOI

Connect Unpaywall (Open Access Papers) to Google ADK via MCP

Follow these steps to wire Unpaywall (Open Access Papers) into Google ADK. The entire setup takes under two minutes — your credentials stay safe behind Vinkius.

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 1 tools from Unpaywall (Open Access Papers) via MCP

Why Use Google ADK with the Unpaywall (Open Access Papers) MCP Server

Google ADK provides unique advantages when paired with Unpaywall (Open Access Papers) 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 Unpaywall (Open Access Papers)

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 Unpaywall (Open Access Papers) tools with BigQuery, Vertex AI, and Cloud Functions

Unpaywall (Open Access Papers) + Google ADK Use Cases

Practical scenarios where Google ADK combined with the Unpaywall (Open Access Papers) MCP Server delivers measurable value.

Enterprise data agents: ADK agents query Unpaywall (Open Access Papers) and cross-reference results with internal databases for comprehensive analysis

Multi-modal workflows: combine Unpaywall (Open Access Papers) tool responses with Gemini's vision and language capabilities in a single agent

Automated compliance checks: schedule ADK agents to query Unpaywall (Open Access Papers) regularly and flag policy violations or configuration drift

Internal tool platforms: build self-service agent platforms where teams connect their own MCP servers including Unpaywall (Open Access Papers)

Example Prompts for Unpaywall (Open Access Papers) in Google ADK

Ready-to-use prompts you can give your Google ADK agent to start working with Unpaywall (Open Access Papers) immediately.

"Check the Open Access status for DOI 10.1038/nature12345."

"Find a free version of the paper with DOI 10.1126/science.1234567."

"Is the article 10.1016/j.cell.2021.01.001 behind a paywall?"

Troubleshooting Unpaywall (Open Access Papers) MCP Server with Google ADK

Common issues when connecting Unpaywall (Open Access Papers) to Google ADK through Vinkius, and how to resolve them.

McpToolset not found

Update: pip install --upgrade google-adk

Unpaywall (Open Access Papers) + Google ADK FAQ

Common questions about integrating Unpaywall (Open Access Papers) 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.