Assymetrix MCP

Name: Assymetrix MCP
Author: assymetrix

by assymetrixversion 0.1.1i★ 0iRuns on your computer

Registry nameio.github.assymetrix/mcp-server

How to install

Overview

Description from the maker (original English)

Read-only prediction market data (Polymarket, Kalshi, Limitless) from the Assymetrix Data API.

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs on your computer
Transport: stdio
Category: Accounting, finance & tax
You need to fill in: ASSYMETRIX_API_KEY

Install

Pick the AI app you use, then copy the settings.

Passed 2/2 checks · Runs on your computer

First: which AI do you use?

ClaudeWeb · app · phoneChatGPTWebClaude CodeTerminalCursorCode editorVS CodeCode editorOtherOther apps

Pick your app and the steps appear below.

Works with Claude, with some setup first

You need a Assymetrix MCP key (sign up on the maker’s site, may cost money) · Install Node.js on your computer first (one time) · Only the Claude desktop app (Windows or Mac), not the web or phone

Install Node.js
One time only; it works for every server that needs Node.js
Open the Node.js download page ↗
Done
Sign up and create a Assymetrix MCP key
Open the maker’s site, sign up and create an API key for the next step. It may cost money.
How to get a key is in the maker’s README below
Done
Open the Claude desktop app’s settings file
SettingsDeveloperEdit Config
Done

Paste these settings and save the file

{
  "mcpServers": {
    "assymetrix": {
      "command": "npx",
      "args": [
        "-y",
        "@assymetrix/mcp-server"
      ],
      "env": {
        "ASSYMETRIX_API_KEY": "your-value"
      }
    }
  }
}

Paste the key only into the app’s field, never into a chat or to anyone

Done

Quit Claude and open it again
Done
Try it
Use Assymetrix MCP and tell me what you can do for me, then show me one thing
✓ If Claude says it is using Assymetrix MCP or shows a Assymetrix MCP tool in the answer, you are connected

Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version

ChatGPT cannot connect Assymetrix MCP yet

Assymetrix MCP runs on your computer, but ChatGPT can only connect servers that run on the web

What you can do instead

A · Use an app that can connect Assymetrix MCP

Steps for Claude →You need a Assymetrix MCP key (sign up on the maker’s site, may cost money) · Install Node.js on your computer first (one time) · Only the Claude desktop app (Windows or Mac), not the web or phone
Steps for Claude Code →You need a Assymetrix MCP key (sign up on the maker’s site, may cost money) · Install Node.js on your computer first (one time)
Steps for Cursor →You need a Assymetrix MCP key (sign up on the maker’s site, may cost money) · Install Node.js on your computer first (one time)
Steps for VS Code →You need a Assymetrix MCP key (sign up on the maker’s site, may cost money) · Install Node.js on your computer first (one time)

B · Others in Accounting, finance & tax that work with ChatGPT

Picked from the most used in the same category, only ones that connect by address with no key

Finance Toolkit✓ ChatGPT
SolidInvoice✓ ChatGPT
Finlab AI✓ ChatGPT

Works with Claude Code, with some setup first

You need a Assymetrix MCP key (sign up on the maker’s site, may cost money) · Install Node.js on your computer first (one time)

Install Node.js
One time only; it works for every server that needs Node.js
Open the Node.js download page ↗
Done
Sign up and create a Assymetrix MCP key
Open the maker’s site, sign up and create an API key for the next step. It may cost money.
How to get a key is in the maker’s README below
Done
Open Terminal
Mac: press Command+Space and type Terminal · Windows: open PowerShell
Done
4
Paste this command and press Enter
```
claude mcp add assymetrix --env ASSYMETRIX_API_KEY=your-value -- npx -y @assymetrix/mcp-server
```
Replace “your-value” with your key before pressing Enter
Paste the key only into the app’s field, never into a chat or to anyone
Done
Type /mcp in Claude Code
You should see Assymetrix MCP listed as connected
Done
Try it
Use Assymetrix MCP and tell me what you can do for me, then show me one thing
✓ If Claude Code says it is using Assymetrix MCP or shows a Assymetrix MCP tool in the answer, you are connected

Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with Cursor, with some setup first

You need a Assymetrix MCP key (sign up on the maker’s site, may cost money) · Install Node.js on your computer first (one time)

Install Node.js
One time only; it works for every server that needs Node.js
Open the Node.js download page ↗
Done
Sign up and create a Assymetrix MCP key
Open the maker’s site, sign up and create an API key for the next step. It may cost money.
How to get a key is in the maker’s README below
Done
Click this button to open Cursor
Open in Cursor
Cursor asks you to confirm; click Install
Done
Fill in your key
In the Assymetrix MCP settings, ASSYMETRIX_API_KEY is empty; add your key and save
Paste the key only into the app’s field, never into a chat or to anyone
Done
Open the AI chat in Cursor in Agent mode
Done
Try it
Use Assymetrix MCP and tell me what you can do for me, then show me one thing
✓ If Cursor says it is using Assymetrix MCP or shows a Assymetrix MCP tool in the answer, you are connected

Menu names checked against Cursor’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with VS Code, with some setup first

You need a Assymetrix MCP key (sign up on the maker’s site, may cost money) · Install Node.js on your computer first (one time)

Install Node.js
One time only; it works for every server that needs Node.js
Open the Node.js download page ↗
Done
Sign up and create a Assymetrix MCP key
Open the maker’s site, sign up and create an API key for the next step. It may cost money.
How to get a key is in the maker’s README below
Done
Click this button to open VS Code
Open in VS Code
VS Code asks you to confirm; click Install
Done
Fill in your key
In the Assymetrix MCP settings, ASSYMETRIX_API_KEY is empty; add your key and save
Paste the key only into the app’s field, never into a chat or to anyone
Done
Open the AI chat in VS Code in Agent mode
Done
Try it
Use Assymetrix MCP and tell me what you can do for me, then show me one thing
✓ If VS Code says it is using Assymetrix MCP or shows a Assymetrix MCP tool in the answer, you are connected

Menu names checked against VS Code’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Other apps that use MCP, such as Windsurf, Zed or Gemini CLI, each add servers differently. See how in the app list.

See every app that uses MCP →

JSON settings are under “For developers” below

Stuck? Ask people who use Assymetrix MCP💬 Discussion →

For developers: Terminal commands and JSON settings

Installed on your computer

Claude Code

claude mcp add assymetrix --env ASSYMETRIX_API_KEY=your-value -- npx -y @assymetrix/mcp-server

Claude Desktop (claude_desktop_config.json)

{
  "mcpServers": {
    "assymetrix": {
      "command": "npx",
      "args": [
        "-y",
        "@assymetrix/mcp-server"
      ],
      "env": {
        "ASSYMETRIX_API_KEY": "your-value"
      }
    }
  }
}

Cursor (~/.cursor/mcp.json)

{
  "mcpServers": {
    "assymetrix": {
      "command": "npx",
      "args": [
        "-y",
        "@assymetrix/mcp-server"
      ],
      "env": {
        "ASSYMETRIX_API_KEY": "your-value"
      }
    }
  }
}

VS Code (mcp.json)

{
  "servers": {
    "assymetrix": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@assymetrix/mcp-server"
      ],
      "env": {
        "ASSYMETRIX_API_KEY": "your-value"
      }
    }
  }
}

Values you fill in

ASSYMETRIX_API_KEY secret env
Your Assymetrix Data API key (starts with asy_). A free key works.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

At a glance

GitHub stars i: 0
Downloads per weeki: 123/wk
Licence i: No licence stated
Connection: Runs on your computer
Transport: stdio
Latest versioni: 0.1.1
Categoryi: Accounting, finance & tax
Published to registryi: Oct 29, 2026
Code last changedi: Oct 28, 2026
Maker: assymetrix
Packages: npm: @assymetrix/mcp-server
Repo: assymetrix/assymetrix-agent-tools
Registry status: Active

Which apps can use it

Based on how this server connects and on each app’s own docs, checked Nov 10, 2026.

Run on your computer in

Claude Goose LM Studio Msty Studio Cherry Studio Cursor VS Code + GitHub Copilot Visual Studio Windsurf (Devin Desktop)Zed Kiro Cline Continue JetBrains AI Assistant Claude Code Codex CLI Gemini CLI OpenCode nodecode Warp LibreChat Raycast

All apps, with pros and cons →

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 11, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account assymetrix, which owns the repo
✓ Pass
Still maintained
Code last changed 14 days ago
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
– Not applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
– Not applicable
Sign-in with OAuth
Runs on your computer and uses local settings instead
… Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints

Discussion

Ask, share a tip or report that it does not work. Sorted by what people marked helpful.

No posts yet. Be the first to ask or share.

Posts here are written by users, not the PopNx team.

User reviews

No reviews yet

Compared with others in Accounting, finance & taxi

More stars than 0% of the other 3114 servers in this category
Published to the registry more recently than 67% of the other 3114 servers in this category
Basic checks equal to or better than 100% of the other 3114 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is Assymetrix MCP safe?

It passed 2 of 2 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

You need to fill in: ASSYMETRIX_API_KEY

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed 14 days ago, and the latest version (0.1.1) reached the registry 13 days ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Node.js on your computer.

What can I use instead?

In the same category: CCXT, Finance Toolkit, AKQuant

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:↓ Downloads per weeki★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

CCXT

Official CCXT MCP server - Market data and trading across 100+ exchanges and prediction markets

by ccxtWidely used↓ 667/wk★ 44.8KUpdated 2 months ago

Runs on your computer

Install

Finance Toolkit

500+ transparent financial methods calculated from raw statements, not third-party endpoints.

by JerBoumaWidely used↓ 15.6K/wk★ 5.5KUpdated 2 days ago

Computer or cloud

Install

AKQuant

Write and backtest trading strategies with AKQuant: API lookup, strategy checks, backtest runs

by akfamilyWidely used↓ 3.3K/wk★ 2.6KUpdated 2 days ago

Runs on your computer

Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

Assymetrix agent tools

Prediction market data from Polymarket, Kalshi and Limitless for AI agents, from the Assymetrix Data API:

`@assymetrix/mcp-server`: an MCP server with three read-only tools, in packages/mcp-server.
`prediction-market-data`: an Agent Skill that teaches an agent to use the same API with curl, in skills/prediction-market-data.
A Claude Code plugin that bundles both (.claude-plugin/).

Everything here only reads market data. Nothing places orders, moves money or links wallets, and nothing here is financial advice. You use your own Assymetrix API key, and a free key works.

Get an API key

Create a free account at https://dashboard.assymetrix.com/signup?utm_source=github&utm_campaign=agent-tools
Open API Keys and create a key. It is shown once and starts with asy_.
Keep it in an environment variable, for example in your shell profile: export ASSYMETRIX_API_KEY=asy_...

The Free plan includes 10,000 requests per rolling 30 days, 1 request per second and 30 days of history. Each tool call is one request. Paid plans: https://dashboard.assymetrix.com/billing

Install

Recommended: the Claude Code plugin (MCP server and skill)

/plugin marketplace add assymetrix/assymetrix-agent-tools

/plugin install assymetrix@assymetrix

Claude Code asks for your API key when you enable the plugin and keeps it in your system's secure store, so the key never sits in a config file or the chat.

Other clients

These read the key from an environment variable or their own config file. Keep the key in your shell profile (export ASSYMETRIX_API_KEY=asy_...) rather than typing it into a command.

Claude Code without the plugin (--transport goes before the name):

claude mcp add --env ASSYMETRIX_API_KEY="$ASSYMETRIX_API_KEY" --transport stdio assymetrix -- npx -y @assymetrix/mcp-server

Codex:

codex mcp add assymetrix --env ASSYMETRIX_API_KEY="$ASSYMETRIX_API_KEY" -- npx -y @assymetrix/mcp-server

Cursor (~/.cursor/mcp.json or .cursor/mcp.json):

"mcpServers": { "assymetrix": { "command": "npx", "args": ["-y", "@assymetrix/mcp-server"], "env": { "ASSYMETRIX_API_KEY": "${env:ASSYMETRIX_API_KEY}" } } } }

Claude Desktop (claude_desktop_config.json):

"mcpServers": { "assymetrix": { "command": "npx", "args": ["-y", "@assymetrix/mcp-server"], "env": { "ASSYMETRIX_API_KEY": "asy_..." } } } }

VS Code (.vscode/mcp.json, which asks for the key and hides it):

"inputs": [ { "type": "promptString", "id": "assymetrix-key", "description": "Assymetrix API key", "password": true } ], "servers": { "assymetrix": { "type": "stdio", "command": "npx", "args": ["-y", "@assymetrix/mcp-server"], "env": { "ASSYMETRIX_API_KEY": "${input:assymetrix-key}" } } } }

Skill only (Claude Code, Codex, Cursor and other agents)

npx skills add assymetrix/assymetrix-agent-tools

The skill reads ASSYMETRIX_API_KEY from the agent's environment and never prints it.

Tools

Tool	What it returns
`search_markets`	Markets whose question contains your text, sorted by 24-hour volume: id, venue, last price, best bid and ask, end date.
`get_market_prices`	One market's current odds: last price, bid, ask, spread, price changes, each outcome's price, volume and liquidity.
`get_market_history`	OHLCV candles for a time range (the interval is picked to fit), or the market's trades, newest first.

Prices are probabilities from 0 to 1. How far back history goes depends on your plan; when your plan cuts a range, the result says so.

Configuration

Variable	Default	Meaning
`ASSYMETRIX_API_KEY`	none	Your API key. Without it the server starts and explains how to get one.
`ASSYMETRIX_API_BASE_URL`	`https://api.assymetrix.com/api/v1`	Only for testing. Must be https (plain http only for localhost).
`ASSYMETRIX_TIMEOUT_MS`	`15000`	Timeout for one API request, 1000 to 60000.
`ASSYMETRIX_LOG_LEVEL`	`warn`	`error`, `warn`, `info` or `debug`. Logs go to stderr.

Privacy

The MCP server talks only to the Assymetrix Data API, sending your key in the x-api-key header, a User-Agent with its version, and a random request id that support can use to find a call.
It collects no telemetry, writes nothing to disk, and never logs or returns your key.
The skill runs curl against the same API from your own machine.
Privacy policy: https://www.assymetrix.com/privacy-policy. Support: support@assymetrix.com.

Development

cd packages/mcp-server

pnpm install pnpm run check # type check, build, then the tests (no network) node ../../skills/validate-skill.cjs ../../skills/prediction-market-data # skill format checks node ../../skills/validate-skill.cjs ../../skills/prediction-market-data --release # also fails on open TODO markers

License

MIT

Assymetrix MCP

Overview

What you can do with it

Install

Install Node.js

Sign up and create a Assymetrix MCP key

Open the Claude desktop app’s settings file

Paste these settings and save the file

Quit Claude and open it again

Try it

What you can do instead

Install Node.js

Sign up and create a Assymetrix MCP key

Open Terminal

Paste this command and press Enter

Type /mcp in Claude Code

Try it

Install Node.js

Sign up and create a Assymetrix MCP key

Click this button to open Cursor

Fill in your key

Open the AI chat in Cursor in Agent mode

Try it

Install Node.js

Sign up and create a Assymetrix MCP key

Click this button to open VS Code

Fill in your key

Open the AI chat in VS Code in Agent mode

Try it

Installed on your computer

Values you fill in

At a glance

Which apps can use it

Related guides

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Discussion

User reviews

Compared with others in Accounting, finance & taxi

Common questions

Alternatives

CCXT

Finance Toolkit

AKQuant

README from the maker

Assymetrix agent tools

Get an API key

Install

Recommended: the Claude Code plugin (MCP server and skill)

Other clients

Skill only (Claude Code, Codex, Cursor and other agents)

Tools

Configuration

Privacy

Development

License