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How to connect Ocean.io to Claude

Connect Claude Web, Desktop and Cowork to Ocean.io MCP. Find icp-matched fintech companies in germany, enrich company profiles with firmographics and contacts, and more using natural language, with authentication handled for you.

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Ocean.io is a GTM intelligence platform for searching, enriching, and identifying companies and people. Find and enrich ICP-matched accounts and contacts to prioritize sales and marketing outreach.

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 Ocean.io account to Claude via Composio Connect, enabling it to find ICP-matched fintech companies in Germany, enrich company profiles with firmographics and contacts, export top 100 matched leads as CSV, 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 Ocean.io with

ChatGPT WorkHermes

Connecting Ocean.io 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 Ocean.io account

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

For example, ask Claude to:

  • "Find ICP-matched fintech companies in Germany"
  • "Enrich company profiles with firmographics and contacts"
  • "Export top 100 matched leads as CSV"

It will prompt you to authenticate and authorize access.

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

What is the Ocean.io Claude Connector, and what's possible with it?

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

Troubleshooting

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

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

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

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

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

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

3. Why does the Ocean.io authorization link not work?

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

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

4. Why do Ocean.io actions fail after they worked before?

The Ocean.io connection can expire or lose permission.

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

5. How do I switch to a different Ocean.io account?

Claude can manage the Ocean.io connection for you.

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

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

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

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

Supported Tools

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

Autocomplete Values

Return Ocean.

Enrich Company

Match and enrich one company from a domain, name, or LinkedIn URL, optionally using people as matching context.

Enrich Person

Match and enrich one professional profile using person identifiers and optional company context.

Gather Missing Company Data

Check 1-500 company domains and return every Ocean.

Get Credit Balance

Return general and specialized Ocean.

Get Data Field Values

Return one Ocean.

Lookup Companies

Lookup and enrich 1-1000 companies by domain.

Lookup People

Lookup up to 1000 professional profiles by LinkedIn handle, Ocean.

Search Companies

Search and page through companies using at least one non-empty company or employee filter.

Search People

Search one page of professional profiles with typed person and employer filters; the first page requires at least one non-empty filter.

FRAMEWORKS

How to build Ocean.io MCP Agent with another framework

ChatGPT Work logo

ChatGPT Work

Use Ocean.io MCP with ChatGPT Work

Hermes logo

Hermes

Use Ocean.io MCP with Hermes

FAQ

Frequently asked questions

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

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

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