# How to connect Ocean.io to Claude

```json
{
  "title": "How to connect Ocean.io to Claude",
  "toolkit": "Ocean.io",
  "toolkit_slug": "ocean_io",
  "framework": "Claude Cowork",
  "framework_slug": "claude-cowork",
  "url": "https://composio.dev/toolkits/ocean_io/framework/claude-cowork",
  "markdown_url": "https://composio.dev/toolkits/ocean_io/framework/claude-cowork.md",
  "updated_at": "2026-09-11T05:36:15.024Z"
}
```

## 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 Work](https://composio.dev/toolkits/ocean_io/framework/chatgpt)
- [Hermes](https://composio.dev/toolkits/ocean_io/framework/hermes-agent)

## Connect Ocean.io to Claude Cowork

### 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.
2. Add the Composio MCP server
Click Add custom connector and paste in the Composio MCP server URL:

```bash
https://connect.composio.dev/mcp
```

## What is the Ocean.io MCP server, 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.

## Supported Tools

| Tool slug | Name | Description |
|---|---|---|
| `OCEAN_IO_AUTOCOMPLETE_VALUES` | Autocomplete Values | Return Ocean.io suggestions for a company, keyword, job title, location, or skill query. Each call costs 0.1 credits. |
| `OCEAN_IO_ENRICH_COMPANY` | Enrich Company | Match and enrich one company from a domain, name, or LinkedIn URL, optionally using people as matching context. A matched result costs 0.1 credits. If Ocean.io must crawl the domain, the response explicitly reports processing instead of claiming enrichment completed. |
| `OCEAN_IO_ENRICH_PERSON` | Enrich Person | Match and enrich one professional profile using person identifiers and optional company context. Returns privacy-sensitive professional profile data and costs 0.1 credits per result. It never requests or returns email or phone reveal data. If Ocean.io lacks current data, this operation may start background crawling and report processing instead of completed data. |
| `OCEAN_IO_GATHER_MISSING_COMPANY_DATA` | Gather Missing Company Data | Check 1-500 company domains and return every Ocean.io outcome category. Although this call is free, it has an external side effect: for domains with missing data, it can irreversibly start provider-side background data gathering. |
| `OCEAN_IO_GET_CREDIT_BALANCE` | Get Credit Balance | Return general and specialized Ocean.io credit balances plus the remaining daily request allowance and reset time. This free call reports quota values but does not identify or infer the account's subscription plan. |
| `OCEAN_IO_GET_DATA_FIELD_VALUES` | Get Data Field Values | Return one Ocean.io taxonomy used to construct search filters, with optional case-insensitive local filtering and a bounded result set. This call is free. |
| `OCEAN_IO_LOOKUP_COMPANIES` | Lookup Companies | Lookup and enrich 1-1000 companies by domain. Only successful matches are returned, at a cost of 0.05 credits per found result; no matches is a successful empty response. |
| `OCEAN_IO_LOOKUP_PEOPLE` | Lookup People | Lookup up to 1000 professional profiles by LinkedIn handle, Ocean.io person ID, or both. This returns privacy-sensitive personal profile data and costs 0.05 credits per found result. It does not request or expose email addresses, phone numbers, or other contact-reveal data. |
| `OCEAN_IO_SEARCH_COMPANIES` | Search Companies | Search and page through companies using at least one non-empty company or employee filter. Results cost 0.2 credits each; the default 5-result first page costs at most 1 credit. |
| `OCEAN_IO_SEARCH_PEOPLE` | Search People | Search one page of professional profiles with typed person and employer filters; the first page requires at least one non-empty filter. Results cost 0.2 credits each, so the default 5-result first page costs at most 1 credit. This tool does not request contact reveal. |

## Supported Triggers

None listed.

## 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.

## Creating MCP Server - Stand-alone vs Composio SDK

The Ocean.io MCP server connects Claude Web, Desktop, and Cowork to your Ocean.io account through Composio. Once connected, Claude can use the available Ocean.io tools and triggers to complete tasks on your behalf.

## Complete Code

None listed.

## How to build Ocean.io MCP Agent with another framework

- [ChatGPT Work](https://composio.dev/toolkits/ocean_io/framework/chatgpt)
- [Hermes](https://composio.dev/toolkits/ocean_io/framework/hermes-agent)

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## Frequently Asked Questions

### What are the differences in Tool Router MCP and Ocean.io MCP?

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.

### Can I use Tool Router MCP with Claude Cowork?

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.

### Can I manage the permissions and scopes for Ocean.io while using Tool Router?

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.

### How safe is my data with Composio Tool Router?

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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