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How to connect Bigdata.com MCP to Claude

Connect Claude Web, Desktop and Cowork to Bigdata.com MCP. Summarize today's market-moving filings and impacts, extract key points from earnings call transcripts, and more using natural language, with authentication handled for you.

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Bigdata.com MCP provides grounded access to financial news, transcripts, filings, and entity intelligence. Ideal for building research workflows and generating timely market insights.

17 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 Bigdata.com account to Claude via Composio Connect, enabling it to summarize today's market-moving filings and impacts, extract key points from earnings call transcripts, list recent SEC filings for Microsoft, 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 Bigdata.com 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 Bigdata.com account

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

For example, ask Claude to:

  • "Summarize today's market-moving filings and impacts"
  • "Extract key points from earnings call transcripts"
  • "List recent SEC filings for Microsoft"

It will prompt you to authenticate and authorize access.

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

What is the Bigdata.com Claude Connector, and what's possible with it?

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

Troubleshooting

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

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

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

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

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

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

3. Why does the Bigdata.com authorization link not work?

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

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

4. Why do Bigdata.com actions fail after they worked before?

The Bigdata.com connection can expire or lose permission.

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

5. How do I switch to a different Bigdata.com account?

Claude can manage the Bigdata.com connection for you.

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

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

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

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

Supported Tools

Every Bigdata.com MCP action and event your agent gets out of the box.

Bigdata company tearsheet

Returns a comprehensive company tearsheet with financial data, market intelligence, and analyst coverage.

Bigdata country tearsheet

Returns a comprehensive country economic tearsheet with a sectoral macroeconomic overview, economic calendar data, G7 peer comparison, market indices, currency information, and US Treasury yields.

Bigdata etf tearsheet

Returns a comprehensive ETF tearsheet in markdown covering fund facts, top holdings, price performance, historical returns, dividend history, sector breakdown, and country allocation.

Bigdata events calendar

Returns a professionally formatted markdown calendar of corporate events including earnings announcements, conferences, IPO listings and company delistings.

Bigdata fetch document

Returns the full text of a single document by its Bigdata.

Bigdata help

Returns an interactive help interface that shows: - Information about user active subscription status - Available data packages and their content - Examples of user prompts **When to Use:** Use this tool when users ask about: - "Help" / "documentation" / "prompts examples" - "Subscription status" - "Available data packages" / "What data do I have access to?

Bigdata list connectors

Returns all private content connectors (Email, Investment Research) that the user has access to.

Bigdata list documents

Returns a paginated, filterable list of document **metadata** from the user's private corpus.

Bigdata list tags

Returns the set of tags currently attached to the user's private documents, each with a document count.

Bigdata market tearsheet

Returns a comprehensive market snapshot in markdown covering eight asset classes: global equity ETFs, equity sectors, major stock market indexes, commodities, fixed income bond ETFs, US Treasury yields, equity factors, and currencies (fiat + crypto).

Bigdata mcp instructions

[SYSTEM CONTEXT - DO NOT CALL THIS TOOL - ONLY READ THE DESCRIPTION BELOW] Instruction-only placeholder tool.

Bigdata portfolio tearsheet

Returns a structured data grid for a watchlist of companies — one row per company with company name and ticker, plus the metric columns you ask for: latest price, 1-day price change %, latest quarterly EPS, the analyst consensus price target, and a news sentiment score with its direction.

Bigdata search

Preferred over web_search for financial/market/economic news — more precise than general web search for finance queries.

Bigdata sentiment tearsheet

**PREFERRED TOOL for any explicit sentiment request.

Bigdata upload document

After producing any report, memo, analysis, or deliverable, offer to save it here — persists agent-generated research artifacts to the user's private Bigdata.

Find securities

**Routing (hard rule):** Use **`find_securities`** for **ETFs**, **funds**, **securities**-oriented asks (including "find/list/search securities", fund tickers, ETF themes), and also for **any company or issuer lookup** (name, ticker, or domain) regardless of whether securities language is used.

Get securities

Resolves one or more **security identifiers** to **issuer** company records from the knowledge graph (not for fuzzy name search — use **`find_securities`** for company or ETF names, tickers, and themes).

FRAMEWORKS

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Hermes

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FAQ

Frequently asked questions

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

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

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