AI21 Labs MCP for AI. Go from raw text to polished content instantly.

Q: How do I manage my files with this MCP?

You can list all your uploaded files using ai21listfiles or retrieve details on a specific file with ai21getfile. You also have the option to delete old ones via ai21deletefile.

Claude

ChatGPT

Cursor

Gemini

Windsurf

VS Code

JetBrains

Vercel

See Vinkius in Action

Works with every AI agent you already use

…and any MCP-compatible client

Connect to your AI in seconds.

AI21 Labs provides access to high-fidelity Natural Language Processing (NLP) capabilities for your AI client. This MCP lets you generate complex conversational responses, summarize huge documents, correct grammar mistakes instantly, and extract contextually accurate answers from provided texts at enterprise scale.

What your AI can do

Ai21 chat completion

Generates conversational responses based on prompts, simulating a dialogue exchange.

Ai21 contextual answers

Answers user questions by grounding the response strictly within provided source material.

Ai21 delete file

Removes a specific file from your uploaded document library.

+ 7 more capabilities included

Generate Conversational Dialogue

The agent generates human-like, high-fidelity responses for back-and-forth conversations.

Answer Questions from Documents

It reads uploaded materials and answers specific questions using only the information provided in those documents.

Refine and Polish Writing

You can ask it to correct grammar, improve style, or completely rephrase text while keeping the original meaning intact.

Analyze and Structure Text

The system summarizes long passages into key points or segments a large block of text by specific topics.

Ask an AI about this

Included with Plan

Waiting for input…

AI Agent

AI21 Labs: 10 Tools for Language Processing

These tools give you granular control over every aspect of text intelligence, from simple grammar fixes to complex document summarization.

Make your AI actually useful.

Add this MCP to Claude, Cursor, or Windsurf and your AI stops guessing. It gets real tools to look things up, take action, and handle the stuff you keep doing by hand.

Start using AI21 Labs on Vinkius

Ai21 Chat Completion

Generates conversational responses based on prompts, simulating a dialogue exchange.

Ai21 Contextual Answers

Answers user questions by grounding the response strictly within provided source...

Ai21 Delete File

Removes a specific file from your uploaded document library.

Ai21 Grammar Correction

Fixes grammatical errors in text while preserving the core meaning of the content.

Ai21 Get File

Retrieves specific details about an uploaded file, including metadata and size.

Ai21 Text Improvements

Suggests stylistic changes to text passages to make them sound more professional or tailored to a specific tone.

Ai21 List Files

Provides an overview of all files currently stored in your connected document library.

Ai21 Paraphrase Text

Rewrites existing text to generate alternative phrasing without changing the factual...

Ai21 Segment Text

Divides a large block of text into smaller, distinct sections based on identified...

Ai21 Summarize Text

Reduces long documents or articles down to their most critical points and main...

Security and governance baked right in.

Pick your AI client below to get set up. Just create a Vinkius account, subscribe, and you're instantly up and running. We handle the entire backend infrastructure, delivering out-of-the-box support for HTTPS Streamable, SSE, and OAuth2—zero messy routing required.

Claude AI

Open Claude Settings

Go to claude.ai, click your profile icon, then navigate to Customize → Connectors.

Add Custom Connector

Click the "+" button and select Add custom connector. Paste your Vinkius endpoint URL:

https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp

Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com. For OAuth-protected servers, expand Advanced settings to add credentials.

Start a conversation

Open a new chat. The AI21 Labs integration is available immediately — no restart needed.

Antigravity

Configure Agent Environment

Open your Antigravity agent's workspace configuration or mcp-servers.json file.

Bind the Endpoint

Add the Vinkius endpoint URL to your agent's MCP connections list:

"mcp_servers": {
  "ai21-labs": {
    "serverUrl": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
  }
}

Provide your secure token in place of [YOUR_TOKEN_HERE] to ensure your agent requests are authenticated.

Execute

Start your Antigravity session. The agent will autonomously discover and utilize the AI21 Labs tools with full Vinkius guardrails applied.

VS Code Copilot

⚡

One-Click Install (Recommended)

In your Vinkius Dashboard, simply click the Add to VS Code button for this server. We'll automatically configure your local workspace.

Or configure manually

Open MCP Settings

Open VS Code, press Ctrl/Cmd + Shift + P, and search for GitHub Copilot: MCP Servers.

Add Server Config

Add the Vinkius endpoint configuration to your mcp-servers.json file:

"ai21-labs": {
  "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
}

Ensure you replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com.

LangChain

Install Dependencies

Install the LangChain MCP adapters for your environment:

pip install langchain-mcp-adapters

Connect the Server

Use the SSEClient in LangChain to connect to the Vinkius managed endpoint:

from langchain_mcp_adapters.client import SSEClient

# Connect to Vinkius
client = SSEClient(url="https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp")
tools = client.get_tools()

CrewAI

Define the Tool

Load the Vinkius MCP tools into your CrewAI agents:

from crewai import Agent
from mcp_crewai import MCPTool

# Connect securely to Vinkius
vinkius_tools = MCPTool(url="https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp")

# Assign to Agent
researcher = Agent(
    role='Data Researcher',
    tools=vinkius_tools.get_all()
)

Execute Task

Run your CrewAI process. The agent will autonomously route tasks to the Vinkius managed server.

Choose How to Get Started

Build a custom MCP for your own tools, or connect a ready-made integration from our catalog.

Build Your Own

Turn any API into an MCP. Import a spec, define Agent Skills, or deploy with MCPFusion.

Import from OpenAPI, Swagger, or YAML specs
Create Agent Skills with progressive disclosure
Deploy to edge with MCPFusion framework
Built in DLP, auth, and compliance on every call
Real time usage dashboard and cost metering
Publish to catalog or keep private

Start building

Make Your AI Do More

Start with AI21 Labs, then connect any of our 5,100+ other servers whenever your AI needs more. One click, no limits.

Use this MCP plus 5,100+ others, all in one place
Add new capabilities to your AI anytime you want
Every connection is secured and compliant automatically
Track usage and costs across all your servers
Works with Claude, ChatGPT, Cursor, and more
New servers added to the catalog every week

Independent Platform Disclaimer: Vinkius is an independent platform and is not affiliated with, endorsed by, sponsored by, verified by, or otherwise authorized by AI21 Labs. All third-party trademarks, logos, and brand names are the property of their respective owners. Their use on this website is strictly for informational purposes to identify service compatibility and interoperability.

VINKIUS INFRASTRUCTURE

Cloud Hosted

Managed infra

V8 Isolated

Sandboxed per request

Zero-Trust Proxy

No stored credentials

DLP Enforced

Policy on every call

GDPR Compliant

EU data residency

Token Compression

~60% cost reduction

Your data is protected. See how we built it.

Works with Claude, ChatGPT, Cursor, and more

The Model Context Protocol standardizes how applications expose capabilities to LLMs. Instead of operating in isolation, your AI gains direct access to external platforms, live data, and real-world actions through secure, standardized connections.

This connection provides 10 powerful capabilities that interface natively with Claude, ChatGPT, Cursor, and other compatible AI platforms. No middleware. No custom integration required.

The pain point: Juggling dozens of specialized editing tools.

Today, improving a single piece of content feels like assembling an industrial machine. You write the first draft in one place, copy it into a grammar checker for basic fixes, then paste that output into a paraphrasing tool to change the tone, and finally run it through a summarizer if it's too long. It's manual toggling between five different tabs or services just to get polished text.

With this MCP, you ditch the stack of tools. You give your agent the raw draft and tell it exactly what you need—say, 'Make this sound like a CEO wrote it, but also summarize the three main points.' It handles the whole process in one conversation.

Generate high-fidelity language output with ai21_text_improvements.

The biggest waste of time is running text through multiple services, each adding its own subtle stylistic shift or failing to catch a nuance. You end up spending more time fixing the AI's output than writing original content.

Now, you get precise control over your language model interactions. Tools like `ai21_text_improvements` allow you to guide the style and tone directly within your agent, ensuring that every piece of copy maintains a unified brand voice.

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Security Vinkius Trust Center ↗

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What your AI can actually do with this

Your agent can handle sophisticated language tasks that usually require multiple specialized tools. Instead of juggling different APIs for summarization, style checking, or Q&A, this MCP brings all the core intelligence into one place. You can start with a simple prompt to generate high-fidelity conversation threads, then have your agent automatically summarize long research papers or segment out key topics in a document.

Need to fix grammar? Just ask it; it corrects mistakes while suggesting stylistic improvements. Plus, you can use the system to manage documents directly, pulling precise answers based only on files you upload. By connecting this MCP through Vinkius, your AI client acts like a dedicated linguistic engineer and document architect, handling everything from text cleanup to deep contextual analysis using natural conversation.

Built · Hosted · Managed by Vinkius AI21 Labs MCP - Summarize, Refine & Generate Text

Server ID 019dd0b5-3688-7038-8358-91ef9142aac6

Vinkius Inspector

Compliance Grade A+

Score 100/100

Report View Report ↗

What Changes When You Connect

Stop writing prompts like a prompt engineer. You just tell your agent, 'Summarize this and fix the tone,' and it handles the complex sequence of tasks using tools like ai21_summarize_text and ai21_text_improvements.

When you're working with proprietary data, don't risk hallucination. The ability to use ai21_contextual_answers forces your agent to base its answers only on documents you provide.

Manage your content library directly through your AI client. You can list files with ai21_list_files and even delete old ones using ai21_delete_file, keeping your workspace clean and organized.

Need a whole new angle? Instead of manual rewriting, use the ai21_paraphrase_text tool. It gives you multiple ways to say the same thing, perfect for SEO or brand consistency.

It handles massive text chunks seamlessly. Use ai21_segment_text to break a white paper into digestible topics, and then run those segments through grammar correction with ai21_grammar_correction.

See it in action

01 01

Drafting a product spec sheet

A Product Manager has an internal wiki document (the source context). They ask their agent to answer questions about the project timeline, using ai21_contextual_answers. The agent pulls key dates and requirements directly from the documents without needing manual cross-referencing.

02 02

Updating old marketing copy

A Copywriter needs to update 50 pages of outdated web content. They feed a section into their agent, ask it to use ai21_paraphrase_text with a 'modern' tone, and then run the result through ai21_grammar_correction. The entire batch updates in minutes.

03 03

Preparing for an executive briefing

A Consultant receives 10 dense market reports. Instead of reading them all, they ask their agent to use ai21_summarize_text on each one and then aggregate the key takeaways into a single bulleted list for the final presentation.

04 04

Organizing research notes

A Student has a huge stack of lecture transcripts. They upload them, ask their agent to use ai21_segment_text by topic (e.g., 'Economics,' 'History'), and then run the individual segments through style checks with ai21_text_improvements.

The honest tradeoffs

Treating it like a simple chat bot

Anti-pattern

Asking your agent, 'Tell me about project X.' and getting generic information that isn't based on your company documents.

The Fix

Always specify the context. Use ai21_contextual_answers by uploading all relevant files first, then ask: 'What were the three key action items for Project X according to these documents?'

Copying and pasting text in chunks

Anti-pattern

Taking a long article, manually copying section 1 into one tool, section 2 into another, etc., losing track of the overall flow.

The Fix

Feed the entire document to your agent at once. Use ai21_summarize_text or ai21_segment_text and let the MCP handle the processing sequence internally.

Ignoring file management

Anti-pattern

Needing a specific piece of data from an uploaded folder but forgetting which document it came from.

The Fix

First, use ai21_list_files to see what you have. Then, if you only need the metadata for one file, run ai21_get_file.

When It Fits, When It Doesn't

Use this MCP if your workflow requires multi-step language processing—for example, summarizing a document and then correcting the grammar of the summary. You need the ability to switch between text analysis (like ai21_segment_text) and dialogue generation (ai21_chat_completion) without leaving your agent's interface. Don't use this if you simply need one isolated function, like basic image captioning or simple database lookups; those require different MCPs. If all you do is write, stick to a standard text editor. But if writing involves analysis of external documents and multiple refinement stages, this is what you want.

Questions you might have

How does ai21_contextual_answers work? +

The tool answers questions by reading uploaded documents first. It forces the response to cite only information found in your context, preventing the agent from guessing or hallucinating.

Can I use ai21_summarize_text for legal briefs? +

Yes. You upload the brief and ask the agent to summarize it. It's best practice to also follow up with ai21_segment_text to isolate key clauses.

What is the difference between ai21_paraphrase_text and ai21_text_improvements? +

Paraphrasing simply rewrites text while keeping the meaning. Text improvements are more advanced; they suggest stylistic changes to elevate the writing's quality or tone.

Does ai21_chat_completion support document Q&A? +

No, for reliable question answering based on documents, you should use ai21_contextual_answers. Chat completion is better for open-ended conversation.

How do I manage my files with this MCP? +

You can list all your uploaded files using ai21_list_files or retrieve details on a specific file with ai21_get_file. You also have the option to delete old ones via ai21_delete_file.

Connect to your AI in seconds.

Ai21 chat completion

Ai21 contextual answers

Ai21 delete file

AI21 Labs: 10 Tools for Language Processing

Make your AI actually useful.

Ai21 Chat Completion

Ai21 Contextual Answers

Ai21 Delete File

Ai21 Grammar Correction

Ai21 Get File

Ai21 Text Improvements

Ai21 List Files

Ai21 Paraphrase Text

Ai21 Segment Text

Ai21 Summarize Text

Security and governance baked right in.

Claude AI

Open Claude Settings

Add Custom Connector

Start a conversation

Claude Code

Open your terminal

Add the MCP Server

Start coding

Cursor

One-Click Install (Recommended)

Open Cursor Settings

Add New Server

Use in Composer

Antigravity

Configure Agent Environment

Bind the Endpoint

Execute

VS Code Copilot

One-Click Install (Recommended)

Open MCP Settings

Add Server Config

Windsurf

One-Click Install (Recommended)

Open Windsurf Settings

Add Server Endpoint

LangChain

Install Dependencies

Connect the Server

CrewAI

Define the Tool

Execute Task

Choose How to Get Started

Build Your Own

Make Your AI Do More

Works with Claude, ChatGPT, Cursor, and more

The pain point: Juggling dozens of specialized editing tools.

Generate high-fidelity language output with ai21_text_improvements.

What your AI can actually do with this

Here's how it actually works

Who is this actually for?

What Changes When You Connect

See it in action

Drafting a product spec sheet

Updating old marketing copy

Preparing for an executive briefing

Organizing research notes

The honest tradeoffs

Treating it like a simple chat bot

Copying and pasting text in chunks

Ignoring file management

When It Fits, When It Doesn't

Questions you might have