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How to connect Crustdata to Claude

Connect Claude Web, Desktop and Cowork to Crustdata MCP. Find tech companies with recent funding milestones, enrich this lead's profile with latest data, and more using natural language, with authentication handled for you.

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CrustData is an AI-powered data intelligence platform for real-time company and people data. It helps B2B sales teams, AI SDRs, and investors react to live business signals.

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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 Crustdata account to Claude via Composio Connect, enabling it to find tech companies with recent funding milestones, enrich this lead's profile with latest data, list top decision makers in SaaS startups, 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 Crustdata 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 Crustdata account

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

For example, ask Claude to:

  • "Find tech companies with recent funding milestones"
  • "Enrich this lead's profile with latest data"
  • "List top decision makers in SaaS startups"

It will prompt you to authenticate and authorize access.

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

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

The Crustdata MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Crustdata account. It provides structured and secure access to real-time company and people intelligence, so your agent can perform actions like lead enrichment, market research, investor portfolio analysis, and workforce trend tracking on your behalf.

  • Comprehensive person and company enrichment: Instantly enrich leads or companies with up-to-date details for customer profiling, data verification, or targeted outreach.
  • Advanced decision maker filtering: Find and analyze decision makers across organizations using complex filters, titles, and segmentation for your sales or marketing efforts.
  • Investor portfolio and funding milestone analysis: Retrieve in-depth investor portfolio data, analyze funding milestones, and generate reports for investment research or deal sourcing.
  • Workforce and job market trend insights: Fetch headcount and job listing timeseries data to track organizational growth, hiring activity, or competitive shifts in specific industries.
  • Social and web activity monitoring: Collect and analyze LinkedIn posts and web traffic data for any company to assess engagement, sentiment, and digital footprint for market intelligence and outreach strategies.

Troubleshooting

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

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

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

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

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

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

3. Why does the Crustdata authorization link not work?

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

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

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

The Crustdata connection can expire or lose permission.

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

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

Claude can manage the Crustdata connection for you.

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

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

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

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

Supported Tools

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

Enrich person screener

The screener_person_enrich endpoint enriches person data by providing additional information based on the given query.

Fetch headcount by facet timeseries

Retrieves headcount data as a timeseries with faceted analysis capabilities.

Fetch investor portfolio data

Retrieves comprehensive investor portfolio data from the Data Lab section of the CrustData API.

Filter decision makers data

Filters and retrieves decision maker data from the CrustData B2B SaaS integration platform based on complex criteria.

Post funding milestone timeseries data

The FundingMilestoneTimeseries endpoint retrieves time-series data related to funding milestones for companies.

Post headcount timeseries data

Retrieves filtered and sorted headcount timeseries data from the CrustData Data Lab.

Post job listings table data

This endpoint retrieves filtered and sorted job listings data for specified company tickers from a chosen dataset in the CrustData platform.

Post web traffic data

Retrieves filtered and sorted web traffic data from the CrustData platform.

Retrieve linkedin posts

Retrieves LinkedIn posts for a specified company using CrustData's screener functionality.

Screener company information

The GetCompanyScreener endpoint allows users to search and filter companies based on various criteria such as headcount, growth rate, funding, and more.

Screen metrics and filter conditions

The ScreenData endpoint enables advanced data screening and filtering on the CrustData platform.

Search companies with filters

The CompanySearch endpoint enables users to search and filter companies using the CrustData API.

Search for job id in screener

The screener_person_search endpoint allows users to search for persons associated with a specific job ID within the CrustData B2B SaaS integration platform.

Search linkedin posts by keyword

This endpoint enables searching for LinkedIn posts using a specific keyword.

FRAMEWORKS

How to build Crustdata MCP Agent with another framework

Claude Code logo

Claude Code

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OpenAI Agents SDK logo

OpenAI Agents SDK

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Claude Agent SDK logo

Claude Agent SDK

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Codex logo

Codex

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OpenClaw logo

OpenClaw

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Hermes logo

Hermes

Use Crustdata MCP with Hermes

Atomic Agent logo

Atomic Agent

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Google ADK logo

Google ADK

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LangChain logo

LangChain

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Vercel AI SDK logo

Vercel AI SDK

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Mastra AI logo

Mastra AI

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LlamaIndex logo

LlamaIndex

Use Crustdata MCP with LlamaIndex

CrewAI logo

CrewAI

Use Crustdata MCP with CrewAI

Pydantic AI logo

Pydantic AI

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AutoGen logo

AutoGen

Use Crustdata MCP with AutoGen

FAQ

Frequently asked questions

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

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

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