INDIVIDUAL MCP TOOL

who_holds

Finds which covered investment companies hold a given business (for example Mistral AI, ByteDance or Bureau Veritas), with the weight or stake they publish and its date.

opulion.comnone authenticationAvailability not checked

LIVE ENDPOINT

https://opulion.com/api/mcp

No auth detected

Connect to this endpoint to inspect the live schema for who_holds and invoke it with your own arguments.

Indexed input schema

{}

Risk classification

Potential side effects detected · medium confidence · heuristic, not a guarantee.

A tool name or description contains a write-action term.

Parent server

opulion.com

CONNECT WITH APPROVAL

Client installation

Review this server and its permissions before adding it. Secret placeholders must be set locally.

Codex

~/.codex/config.toml

[mcp_servers.opulion]
url = "https://opulion.com/api/mcp"
enabled = true

Claude Code

.mcp.json

{
  "mcpServers": {
    "opulion": {
      "type": "http",
      "url": "https://opulion.com/api/mcp"
    }
  }
}

Claude Desktop

Settings → Connectors → Add custom connector

Name: opulion
Remote MCP URL: https://opulion.com/api/mcp

Add this remote URL as a custom connector in Claude Desktop. Availability depends on the user plan and workspace policy.

Cursor

.cursor/mcp.json

{
  "mcpServers": {
    "opulion": {
      "url": "https://opulion.com/api/mcp"
    }
  }
}

Visual Studio Code

.vscode/mcp.json

Add to Visual Studio Code

{
  "servers": {
    "opulion": {
      "type": "http",
      "url": "https://opulion.com/api/mcp"
    }
  }
}

Generic MCP

Client-specific MCP configuration

{
  "name": "opulion",
  "transport": "streamable-http",
  "url": "https://opulion.com/api/mcp"
}

MCP Inspector

Run the official MCP Inspector locally and enter the indexed Streamable HTTP endpoint.

Related tools

search — Searches Opulion: covered investment companies, the businesses they hold, and articles.
fetch — Fetches a document returned by search: a company profile (company:<slug>) or an article (article:<slug>), with its link.
list_companies — Lists the listed investment companies covered by Opulion (holding companies, investment trusts), with the slug to use in the other tools.
get_company — Profile of one covered company as shown on its Opulion page: gross assets, borrowings and share financed by debt, share price, net asset value per share and discount or premium with their dates, asset allocation, its ten largest businesses held (one line per business, with its value, whether that value is published, calculated or estimated, its theme and the other covered companies holding it) and upcoming publications.
get_holdings — Full list of a company's holdings: name, value in millions of its currency and whether the company published it or Opulion calculated or estimated it, weight in its portfolio and who computed it, stake, listed or not, sector and date, sorted by weight.
look_through_portfolio — For a portfolio of covered companies and their weights, shows what it really holds underneath: the businesses reached through each company, with their share of the whole portfolio and their dates.
list_articles — Latest Opulion articles, newest first, optionally about one company: results, acquisitions, disposals and what they change.
get_article — Full text of one Opulion article, in Markdown, with its sources and link.