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How to connect Bigdata.com MCP with ChatGPT

Connect ChatGPT 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

How to connect Bigdata.com MCP with ChatGPT

ChatGPT can take action across your apps and files, stay with a project for hours, and turn a goal into finished materials like sheets, slides, and docs, not just answers.

In this guide, I will explain the easiest and most secure way to connect your Bigdata.com account to ChatGPT via Composio Connect, so it can fetch latest financial news, retrieve earnings call transcripts, pull SEC filings, analyze company sentiment, and generate research summaries through natural language commands without ever putting your account credentials at risk.

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Why use Composio over default connectors?

  • Apps with read and write access. Default connectors mostly can read your data. Composio's Bigdata.com integration lets ChatGPT take actions like creating drafts, sending updates, labeling records, and more.
  • 1,500+ SaaS toolkits out of the box. Composio gives you instant access to a vast catalog of pre-built connectors, from Gmail and Slack to Notion, Linear, and Salesforce.
  • One MCP server for every app. Connect any of your applications on demand through a single endpoint, rather than juggling a separate server for each app.
  • Smart, context-aware tool loading. Unlike traditional MCP servers that dump every available tool into the LLM context window, Composio searches for and loads only the tools relevant to the task at hand.
  • Cross-app automation. Chain actions across multiple apps in a single run - fetch a thread, summarize it in Notion, and post highlights to Slack without leaving the conversation.

Prerequisites

  • A ChatGPT account. We will use the ChatGPT desktop app, and the steps are the same on the web.
  • Access to the Bigdata.com workspace you want to connect.
  • Composio plugin.

Note: Composio connects through OAuth. You will be asked to sign in and approve specific permissions. Review the permission screen carefully if you are using a work account.

Step-by-step: Connect Bigdata.com to ChatGPT

1. Install the Composio plugin

Click the button. ChatGPT opens the Composio plugin page. Click Install plugin.

Install in ChatGPT

Composio plugin page in ChatGPT with the Install plugin button

You can also find it inside ChatGPT: go to Settings, open Plugins, search the marketplace for Composio, and click Install plugin.

2. Authenticate

After you install, ChatGPT asks you to authenticate with Composio. Log in and click Allow access to authorize ChatGPT to use your Composio account.

Composio login and Allow access screen for ChatGPT

3. Start using Composio

That is it. Composio tools are now available in ChatGPT. Type @Composio followed by your request, for example @Composio find unread Bigdata.com messages and summarize them, and it will run the actions you authorize. On first use it asks you to authorize Bigdata.com.

Option 2: Add Composio as an MCP server

If you cannot use the plugin marketplace, add Composio as a custom MCP server instead.

1. Open the MCP settings

In ChatGPT, go to Settings and open the Plugins section. Inside the Plugins page, click the MCP tab.

ChatGPT settings showing the Plugins page with the MCP tab selected

2. Add the server

Click Add server. In the Name field enter Composio, for Type select Streamable HTTP, and in the URL field paste the Composio MCP server URL:

bash
https://connect.composio.dev/mcp
ChatGPT Add server dialog with the name Composio, type Streamable HTTP, and the Composio MCP URL

Then click Save. The Composio server now appears in your MCP plugins list.

ChatGPT Plugins page showing the Composio MCP server added to the list

3. Authenticate

Click Authenticate on the Composio entry, log in via Composio, and click Allow access. Composio tools are then available in ChatGPT the same way as with the plugin.

What you can do after connecting Bigdata.com

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

Security + privacy notes (important)

  • Use least-privilege access: Only grant permissions you actually need.
  • Review OAuth permissions before approving: Make sure requested scopes match what you expect Composio and ChatGPT to do.
  • Keep write actions human-reviewed: For actions like sending messages, creating labels, or editing drafts, keep manual confirmation enabled.
  • Be careful with sensitive data: Avoid using this setup with highly sensitive information unless allowed by your personal, company, or client policies.
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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Claude Cowork

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Hermes logo

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. ChatGPT 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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