X (Twitter)LinkedInGitHubDiscordYouTube

How to connect Finviz to Claude

Connect Claude Web, Desktop and Cowork to Finviz MCP. List top gainers in the last week, create watchlist for tech growth stocks, and more using natural language, with authentication handled for you.

Get started for freeGet a demo
Finviz logoFinviz
Api Key

Finviz is a market screening and research service with an official API for ELITE subscribers. It helps traders and analysts quickly screen stocks, track market movers, and research tickers.

11 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 Finviz account to Claude via Composio Connect, enabling it to list top gainers in the last week, create watchlist for tech growth stocks, set price alerts for selected tickers, 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 Finviz with

ChatGPT WorkHermes

Connecting Finviz to Claude Web, Desktop, and Cowork

1. Open Customize

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

2. Add the Composio MCP server

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

3. 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

4. Connect your Finviz account

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

For example, ask Claude to:

  • "List top gainers in the last week"
  • "Create watchlist for tech growth stocks"
  • "Set price alerts for selected tickers"

It will prompt you to authenticate and authorize access.

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

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

The Finviz MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Finviz account. It provides structured and secure access so your agent can perform Finviz operations on your behalf.

Troubleshooting

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

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

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

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

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

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

3. Why does the Finviz authorization link not work?

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

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

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

The Finviz connection can expire or lose permission.

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

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

Claude can manage the Finviz connection for you.

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

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

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

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

Supported Tools

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

Get Options Chain

Return the options chain for one ticker, optionally restricted to an expiration date or strike price.

Get Portfolio

Return an existing Finviz portfolio using a configured portfolio URL or portfolio ID.

Get Stock History

Return OHLCV price history for one ticker at a selected bar timeframe and history range.

List Calendar

Return economic events, company earnings, or company dividends for an inclusive date range.

List Market Groups

Return aggregate Finviz market groups for a selected grouping and data view.

List Insider Transactions

Return recent market-wide or ticker-specific insider transactions, filtered to all transactions, purchases, or sales.

List Investor Holdings

Return a bounded prefix of one manager's or fund's complete unpaginated holdings export and report its full row count.

List Investors

Return the institutional-manager or fund directory, optionally narrowed by name.

List Latest Filings

Return the latest SEC filings for one ticker, optionally filtered by filing category and ordered by filing date, report date, or form.

List News

Return market, stock, ETF, or crypto news from Finviz.

Screen Stocks

Return stocks from a configured Finviz screener URL or explicit screener controls.

FRAMEWORKS

How to build Finviz MCP Agent with another framework

ChatGPT Work logo

ChatGPT Work

Use Finviz MCP with ChatGPT Work

Hermes logo

Hermes

Use Finviz MCP with Hermes

FAQ

Frequently asked questions

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

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

Start with Finviz.It takes 30 seconds.

Managed auth, hosted MCP servers, and every Finviz tool your agent needs.Free to start.

Start building