How to connect Refiner to Claude

Connect Claude Web, Desktop and Cowork to Refiner MCP. List all active surveys this month, fetch survey responses for nps form, and more using natural language, with authentication handled for you.

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Refiner is a customer feedback and survey platform for collecting actionable user insights. Easily analyze responses and boost engagement with targeted surveys.

10 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 Refiner account to Claude via Composio Connect, enabling it to list all active surveys this month, fetch survey responses for NPS form, update contact traits for user email, 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.

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Connecting Refiner 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 Refiner account

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

For example, ask Claude to:

  • "List all active surveys this month"
  • "Fetch survey responses for NPS form"
  • "Update contact traits for user email"

It will prompt you to authenticate and authorize access.

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

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

The Refiner MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Refiner account. It provides structured and secure access to your customer feedback and survey data, so your agent can perform actions like fetching contacts, analyzing survey responses, managing user segments, updating user data, and generating reports on your behalf.

  • Contact management and updates: Effortlessly retrieve, update, or delete contact records, allowing your agent to keep user data clean and up-to-date.
  • Survey and form discovery: Instantly list all surveys or forms in your Refiner account, filter by state, and access their configurations for deeper analysis or reporting.
  • Survey response retrieval and analytics: Pull in all survey responses, filter results, and generate detailed analytics or reporting to uncover actionable insights from your customer feedback.
  • User segmentation and targeting: Fetch and browse user segments, enabling your agent to target specific groups for outreach or further analysis based on collected data.
  • Event tracking and behavioral logging: Automatically record user events, associate them with contacts, and enrich feedback data for advanced behavioral analytics.

Troubleshooting

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

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

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

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

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

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

3. Why does the Refiner authorization link not work?

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

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

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

The Refiner connection can expire or lose permission.

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

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

Claude can manage the Refiner connection for you.

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

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

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

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

Supported Tools

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

Delete Contact

Tool to delete a specific contact by its identifier.

Get Account Info

Retrieves Refiner account information including subscription plan, usage limits, and environment statistics.

Get Contact

Retrieve detailed information about a specific contact using their ID, email, or UUID.

Get Contacts

Tool to retrieve a list of contacts from your Refiner account.

Get Forms

Tool to retrieve a list of forms (surveys) from your Refiner account with optional filtering and pagination.

Get Reporting

Tool to retrieve aggregated reporting data for surveys including metrics and analytics.

Get Survey Responses

Tool to retrieve all survey responses from your Refiner account with optional filtering and pagination.

Get Segments

Tool to retrieve a list of user segments from your Refiner account.

Track Event

Tool to record a user event by name for a user identified via user ID or email.

Update Contact

Tool to create or update a contact's attributes or account.

FAQ

Frequently asked questions

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

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

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