Is the Poshkan Paper Trading MCP server free to use?

Yes. Poshkan Paper Trading is listed on AllMCPs as a free, open Model Context Protocol server you can install into Claude Desktop, Cursor, or any MCP-compatible client.

Is the Poshkan Paper Trading MCP server free to use?

Yes. Poshkan Paper Trading is listed on AllMCPs as a free, open Model Context Protocol server you can install into Claude Desktop, Cursor, or any MCP-compatible client.

Poshkan Paper Trading

Paper trading for AI: live quotes, indicators, and virtual trades on stocks, crypto, and forex.

Quick Install

Automated & IDE Setup

Copy the AI prompt to install this server into Claude Code, Cursor, or another agent — or use 1-click editor setup below.

Add to Cursor Add to VS Code

Manual Client & Custom JSON ConfigExpand JSON ▾

Install Config Generator

Choose your client

claude_desktop_config.json

{
  "mcpServers": {
    "poshkan-paper-trading": {
      "command": "npx",
      "args": [
        "-y",
        "poshkan-paper-trading"
      ]
    }
  }
}

💡 Paste into ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows)

Documentation Overview

Poshkan — Paper Trading

Risk-free US stock paper trading. Start with virtual cash, practice the market, track holdings and P&L — no real money on the line.

See DESIGN.md for the full product/architecture design.

Stack

Next.js 16 (App Router) + TypeScript + Tailwind CSS v4
Supabase — auth (with email confirmation), Postgres, Row-Level Security
Twelve Data — live market quotes & search (proxied server-side)
TanStack Query — live quote polling

Setup

1. Install dependencies

Terminal

npm install

2. Create a Supabase project

Create a project at supabase.com.
Open the SQL Editor and run the contents of supabase/schema.sql. This creates the tables, RLS policies, the auto-profile trigger, and the trading RPC functions.
In Authentication → Providers → Email, keep "Confirm email" enabled.
In Authentication → URL Configuration, add your site URL (http://localhost:3000 for dev) to the redirect allow-list.

3. Get a Twelve Data API key

Sign up at twelvedata.com and copy your API key from the dashboard. The free tier is rate-limited (~8 requests/min) — fine for dev.

4. Configure environment

Copy .env.local.example to .env.local and fill in:

Code

NEXT_PUBLIC_SUPABASE_URL=https://YOUR-REF.supabase.co
NEXT_PUBLIC_SUPABASE_ANON_KEY=your-anon-key
TWELVE_DATA_API_KEY=your-twelve-data-key
NEXT_PUBLIC_SITE_URL=http://localhost:3000

The Twelve Data key is server-only — never prefix it with NEXT_PUBLIC_.

5. Run

Terminal

npm run dev

Open http://localhost:3000.

How it works

Auth — email/password sign-up sends a confirmation email; the link lands on /auth/confirm which verifies the token and signs you in.
Accounts — create multiple paper portfolios with starting cash and optional seeded holdings. Top up or reset cash anytime.
Trading — search a symbol, then Buy / Sell / add to Watchlist. Trades fill at the live price (fetched server-side at execution) via an atomic Postgres RPC that validates cash and share balances (long-only, no margin).
P&L — holdings show shares, avg cost, live price, day %, market value, and unrealized P&L in $ and %.

Roadmap (v2)

Crypto & Forex asset classes, limit orders, transaction-history view, account-value charts.

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Frequently Asked Questions about Poshkan Paper Trading

Add the following block to your claude_desktop_config.json under mcpServers: "mcpServers": { "poshkan-paper-trading": { "command": "npx", "args": ["-y", "Poshkan Paper Trading"] } }

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Technical Specs & Signals

CategoryFinance & Fintech

0/4 checks healthy over the last 6h

27Quality signal: Emerging · 27/100How this signal is calculated ▾

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Not scored for repo-hosted servers — we can't reach the running server, only its GitHub page. Hosted MCP endpoints are health-checked live.

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Documentation & tools11/30

Adoption & activity1/15

Community engagement0/10

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Documentation Overview

Poshkan — Paper Trading

Risk-free US stock paper trading. Start with virtual cash, practice the market, track holdings and P&L — no real money on the line.

See DESIGN.md for the full product/architecture design.

Stack

Next.js 16 (App Router) + TypeScript + Tailwind CSS v4
Supabase — auth (with email confirmation), Postgres, Row-Level Security
Twelve Data — live market quotes & search (proxied server-side)
TanStack Query — live quote polling

Setup

1. Install dependencies

Terminal

npm install

2. Create a Supabase project

Create a project at supabase.com.
Open the SQL Editor and run the contents of supabase/schema.sql. This creates the tables, RLS policies, the auto-profile trigger, and the trading RPC functions.
In Authentication → Providers → Email, keep "Confirm email" enabled.
In Authentication → URL Configuration, add your site URL (http://localhost:3000 for dev) to the redirect allow-list.

3. Get a Twelve Data API key

Sign up at twelvedata.com and copy your API key from the dashboard. The free tier is rate-limited (~8 requests/min) — fine for dev.

4. Configure environment

Copy .env.local.example to .env.local and fill in:

Code

NEXT_PUBLIC_SUPABASE_URL=https://YOUR-REF.supabase.co
NEXT_PUBLIC_SUPABASE_ANON_KEY=your-anon-key
TWELVE_DATA_API_KEY=your-twelve-data-key
NEXT_PUBLIC_SITE_URL=http://localhost:3000

The Twelve Data key is server-only — never prefix it with NEXT_PUBLIC_.

5. Run

Terminal

npm run dev

Open http://localhost:3000.

How it works

Auth — email/password sign-up sends a confirmation email; the link lands on /auth/confirm which verifies the token and signs you in.
Accounts — create multiple paper portfolios with starting cash and optional seeded holdings. Top up or reset cash anytime.
Trading — search a symbol, then Buy / Sell / add to Watchlist. Trades fill at the live price (fetched server-side at execution) via an atomic Postgres RPC that validates cash and share balances (long-only, no margin).
P&L — holdings show shares, avg cost, live price, day %, market value, and unrealized P&L in $ and %.

Roadmap (v2)

Crypto & Forex asset classes, limit orders, transaction-history view, account-value charts.

Frequently Asked Questions about Poshkan Paper Trading

Add the following block to your claude_desktop_config.json under mcpServers: "mcpServers": { "poshkan-paper-trading": { "command": "npx", "args": ["-y", "Poshkan Paper Trading"] } }