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Model Context Protocol

MCP Connector

Bring your portfolio to Claude, ChatGPT, or any MCP-compatible AI assistant — OAuth-secured, opt-in, and strictly read-only.

HeliusOne exposes your account as a remote MCP (Model Context Protocol) server. Add the connector to the AI assistant you already use and ask about your positions, watchlist, saved analyses, and market data from anywhere you chat — without opening the terminal. You opt in from Settings, sign in through a consent screen, and can revoke any connection at any time. The connector cannot place trades, move money, or change settings.

Claude

What's my biggest position right now, and how did it do today?

heliusone · get_positions

heliusone · get_quotes

Your largest holding is NVDA — 120 shares, about 14% of your portfolio. It's up +4.11% today at $875.40, adding roughly +$4,150 in unrealized P&L. Overall your portfolio is up about +1.8% on the day.

Want me to pull your tax lots and check which NVDA shares are already long-term before you consider trimming?

Reply to Claude… Send

Claude connected to HeliusOne over MCP — reading positions and live quotes with read-only access. Illustrative example; informational only, not financial advice.

Key Capabilities

What this feature does for you

Works With the AI You Already Use

Claude, ChatGPT, and any other MCP-compatible client can connect. Add the HeliusOne connector URL once and your assistant gains portfolio context in every conversation.

Read-Only by Design

The connector can read data — never act. Placing trades, moving money, and changing settings are impossible through the MCP surface, no matter what the assistant is asked.

Your Portfolio as AI Tools

Positions, balances, live quotes, watchlist, tax lots, recent activity, ticker-tagged news, price signals, and your saved daily and portfolio analyses — all queryable by your assistant.

OAuth-Secured Sign-In

Connections are authorized through an OAuth flow backed by your existing HeliusOne login. You see a consent screen that spells out exactly what the assistant can and cannot do before anything is shared.

Two Levels of Opt-In

A master toggle grants read-only access to your stored data. A separate, second toggle is required before any live brokerage data — holdings, balances, quotes — is available. Both are off by default.

Full Visibility and Revocation

Every connected client is listed in Settings with when it connected and when it was last used. Revoke any single connection — or switch the master toggle off — at any time.

Related Features

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