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How to connect Neutrino to Claude

Connect Claude Web, Desktop and Cowork to Neutrino MCP. Detect profanity in user-submitted comments, convert 50 usd to eur instantly, and more using natural language, with authentication handled for you.

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Neutrino is a powerful API suite for data validation, geolocation, and security tasks. It streamlines complex checks and enriches your applications with just a single API key.

24 Tools

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 Neutrino account to Claude via Composio Connect, enabling it to detect profanity in user-submitted comments, convert 50 USD to EUR instantly, geocode address to get latitude and longitude, 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 Neutrino with

Claude CodeOpenAI Agents SDKClaude Agent SDKCodexOpenClawHermesAtomic AgentGoogle ADKLangChainVercel AI SDKMastra AILlamaIndexCrewAIPydantic AIAutoGen

Connecting Neutrino to Claude Web, Desktop, and Cowork

Two ways to add the Composio connector. Pick whichever you prefer.

1. Add with one click

Click the button. Claude opens with the Composio connector filled in. Click Add, then go to step 2.

Add to Claude

Add manually

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

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

2. 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

3. Connect your Neutrino account

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

For example, ask Claude to:

  • "Detect profanity in user-submitted comments"
  • "Convert 50 USD to EUR instantly"
  • "Geocode address to get latitude and longitude"

It will prompt you to authenticate and authorize access.

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

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

The Neutrino MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Neutrino account. It provides structured and secure access to Neutrino’s robust suite of APIs, so your agent can validate data, analyze geolocations, assess security risks, convert currencies, and clean content automatically on your behalf.

  • Real-time data validation and analysis: Have your agent validate email addresses, check mobile numbers, and analyze BIN (bank identification numbers) for accuracy and reliability.
  • Geolocation and address intelligence: Ask your agent to geocode addresses to coordinates, or perform reverse geocoding to turn latitude and longitude into real-world locations for smarter workflows.
  • Content safety and cleaning: Let your agent scan text for profanity using the Bad Word Filter or sanitize untrusted HTML to ensure safe, presentable content anywhere it’s needed.
  • Security and risk assessment: Automate reputation checks on hosts and domains, enabling your agent to proactively identify potential threats or block risky sources without manual effort.
  • Currency and unit conversion: Empower your agent to convert between different units or currencies on demand, streamlining financial or scientific operations with ease.

Troubleshooting

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

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

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

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

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

  • 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 Neutrino.
  • If it fails again, send the error and the ofid_ reference id to support@composio.dev.

3. Why does the Neutrino authorization link not work?

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

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

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

The Neutrino connection can expire or lose permission.

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

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

Claude can manage the Neutrino connection for you.

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

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

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

  • In Claude Desktop, open Customize > Connectors.
  • Next to Composio, click ⋮ and click Clear cache.
  • If Neutrino 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 Neutrino.
TOOLS

Supported Tools

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

Add Watermark to Image

Add a watermark to an image with customizable position, opacity, and output format.

Bad Word Filter

Tool to detect bad words and profanity in text.

BIN Lookup

Perform a BIN (Bank Identification Number) lookup to retrieve comprehensive card issuer information.

IP Blocklist

Check if an IP address is on a blocklist.

Convert Value

Tool to perform unit and currency conversions.

Validate and analyze an email address

Validates and analyzes email addresses for syntax, domain validity, DNS/MX records, and detects freemail/disposable providers.

Verify Email Address

Tool to verify and analyze the deliverability of an email address.

Geocode Address

Tool to geocode an address.

Reverse Geocode

Convert geographic coordinates (latitude/longitude) into real-world address information.

HLR Lookup

Perform real-time HLR (Home Location Register) lookup to validate mobile numbers and retrieve detailed network information.

Host Reputation

Check if an IP address, domain, or URL is listed on DNS-based Blackhole Lists (DNSBLs).

HTML Clean

Tool to clean and sanitize untrusted HTML.

HTML Render

Render HTML content to PDF, PNG, or JPG format.

Resize Image

Resize, crop, and convert images to PNG or JPG format.

IP Info

Get comprehensive geolocation and network information for an IPv4 or IPv6 address.

IP Probe

Analyzes an IPv4 or IPv6 address to extract detailed network intelligence including geolocation, ISP/hosting provider information, ASN details, and security flags (VPN, proxy, TOR detection).

Domain Lookup

Tool to perform a domain lookup to retrieve WHOIS, DNS records, domain registration information and detect potentially malicious or dangerous domains.

Phone Validate

Tool to validate and lookup phone numbers.

QR Code

Generate a QR code or Code 128 barcode as a PNG image.

Browser Bot

Tool to automate browser interactions using a real Chromium browser.

SMS Verify

Tool to send a unique security code via SMS.

UA Lookup

Parse and analyze User-Agent strings to extract detailed browser, device, and operating system information.

URL Info

Tool to parse, analyze, and retrieve content from the supplied URL.

Verify Security Code

Verify a security code generated by SMS Verify or Phone Verify APIs.

FRAMEWORKS

How to build Neutrino MCP Agent with another framework

Claude Code logo

Claude Code

Use Neutrino MCP with Claude Code

OpenAI Agents SDK logo

OpenAI Agents SDK

Use Neutrino MCP with OpenAI Agents SDK

Claude Agent SDK logo

Claude Agent SDK

Use Neutrino MCP with Claude Agent SDK

Codex logo

Codex

Use Neutrino MCP with Codex

OpenClaw logo

OpenClaw

Use Neutrino MCP with OpenClaw

Hermes logo

Hermes

Use Neutrino MCP with Hermes

Atomic Agent logo

Atomic Agent

Use Neutrino MCP with Atomic Agent

Google ADK logo

Google ADK

Use Neutrino MCP with Google ADK

LangChain logo

LangChain

Use Neutrino MCP with LangChain

Vercel AI SDK logo

Vercel AI SDK

Use Neutrino MCP with Vercel AI SDK

Mastra AI logo

Mastra AI

Use Neutrino MCP with Mastra AI

LlamaIndex logo

LlamaIndex

Use Neutrino MCP with LlamaIndex

CrewAI logo

CrewAI

Use Neutrino MCP with CrewAI

Pydantic AI logo

Pydantic AI

Use Neutrino MCP with Pydantic AI

AutoGen logo

AutoGen

Use Neutrino MCP with AutoGen

FAQ

Frequently asked questions

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

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

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