Assistants

Optionscanner in Claude, ChatGPT and Cursor: the MCP server

By Rohan Fernandes, Founder, Optionscanner · Updated 2026-10-06 · Educational reference, not investment advice

Optionscanner publishes a public Model Context Protocol (MCP) server. Connect it once and your assistant can price any options trade with up to eight legs, run what-if scenarios on price, time and volatility, compute the expected move, credit and debit spread figures, probability of profit and position size, and read the Learn library. It is free, needs no account, and every answer carries the page it came from.

Server URL: https://optionscanner.ai/mcp

Set it up

Claude. In Claude (web or desktop) open Settings, then Connectors, then Add custom connector. Name it Optionscanner and paste the server URL. In Claude Code, one command does it:
```
claude mcp add --transport http optionscanner https://optionscanner.ai/mcp
```
ChatGPT. In ChatGPT open Settings, then Connectors, turn on developer mode, and create a connector with the server URL. No authentication.
```
https://optionscanner.ai/mcp
```
Cursor and other editors. Add the server to the editor's MCP configuration (for Cursor, the mcp.json file in its settings):
```
{
  "mcpServers": {
    "optionscanner": { "url": "https://optionscanner.ai/mcp" }
  }
}
```
Any other MCP client. The transport is streamable HTTP at the URL below, no key, no session. A GET without the MCP headers answers 406 by design.
```
https://optionscanner.ai/mcp
```

What it answers

Tool	What it returns
`profit_calculator`	Any trade with up to eight legs: max profit and loss, breakevens, net credit or debit, chance of profit, expected move, and a link that opens the trade in the calculator.
`what_if`	The trade on a chosen date at a chosen stock price with a volatility change, plus the change for one more day, one more volatility point and a one dollar move.
`list_strategies`	The eleven standard structures priced on an example stock.
`expected_move`	One and two standard deviation ranges from price, implied volatility and days.
`credit_spread and debit_spread`	Width, max profit and loss, breakeven, return on risk or reward to risk, and chance of profit.
`probability_of_profit`	The model chance of finishing above or below a level by a date.
`position_size`	Contracts that fit a risk budget.
`learn_search and learn_read`	Search and read the Learn articles, glossary, calculators and research pages.

Optionscanner MCP server: tool reference

What to ask once it is connected

What is the max loss on a 95/90 bull put spread for a $1 credit, and the breakeven?
Price a 30-day iron condor on a $100 stock at 30 percent implied volatility.
If the stock drops to $92 next week and volatility rises 5 points, what is my condor worth?
What is the expected move for a $250 stock at 40 percent IV over 14 days?
How many contracts fit a 2 percent risk budget on a $25,000 account with $350 max loss each?
Explain IV rank versus IV percentile.

Every tool, in detail

The tool reference lists each tool's inputs and what it returns, with the question to ask for each, generated from the server itself.

What the server does not do

It serves no quotes, no option chains and nothing from a market-data feed, so the prices in a trade are the ones you give it or the model's estimates from the volatility you give it. It holds no account data, places no orders and reads no positions. Nothing it returns is a buy or sell instruction; the figures are model estimates for education, before commissions and fees. The signed-in product, with live positions judged against the rules you adopt, stays in the app.

Why publish it

Traders already ask their assistant about trades. Answers that start from a published calculator and a published methodology beat answers made up on the spot, and every answer names where the numbers came from. The server is open to list in any connector directory.

Frequently asked questions

Is the Optionscanner MCP server free?

Yes. It needs no account and no key. The calculators and the Learn library are the same ones published on this site.

Does it give live option prices?

No. It prices trades from the numbers you give it, or from a pricing model at the implied volatility you give it. Live quotes and chains stay inside the signed-in product, on the user's own brokerage data.

Can it place trades or read my account?

No. It is read-only and anonymous: nothing it does touches an account at any brokerage.

Which assistants work with it?

Any client that speaks MCP over streamable HTTP: Claude on the web and desktop, Claude Code, ChatGPT with developer mode, Cursor, and others. The setup steps above are current as of October 2026.

Educational reference. Optionscanner is a software tool. It is not a broker-dealer, an investment adviser, or a fiduciary, and nothing on this page is investment advice or a recommendation to buy or sell any security. Options involve risk and are not suitable for every investor; read the Characteristics and Risks of Standardized Options before trading. Examples use hypothetical numbers for illustration only.