Toss Invest

Access Toss Securities market, account, and opt-in trading APIs through MCP.

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 ▾

Client Config & Setup

Choose your client or environment

Target File:~/Library/Application Support/Claude/claude_desktop_config.json

claude_desktop_config.json

{
  "mcpServers": {
    "toss-invest": {
      "command": "npx",
      "args": [
        "-y",
        "toss-invest"
      ]
    }
  }
}

💡 Paste the JSON block into your client's configuration file under mcpServers, then restart the application.

Documentation Overview

Toss Securities Open API

Unofficial community project. This project is not affiliated with or endorsed by Toss Securities.

pnpm workspace for a TypeScript SDK and a local MCP server for the Toss Securities Open API. The MCP server is read-only unless trading is explicitly enabled.

Packages

packages/sdk: TypeScript SDK with automatic access-token caching and refresh
apps/mcp: local MCP server built on the SDK, with opt-in trading permissions

Requirements

Node.js 22.18 or later
pnpm

Setup

pnpm install
cp .env.example .env

Set TOSS_CLIENT_ID and TOSS_CLIENT_SECRET in .env, then run:

pnpm check
pnpm test
pnpm test:live

The live test only performs read operations, and the MCP server defaults to read-only. See the SDK guide and MCP setup guide for usage details.

Read the full README →View source on GitHub →

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Frequently Asked Questions about Toss Invest

Add the following block to your claude_desktop_config.json under mcpServers: "mcpServers": { "toss-invest": { "command": "npx", "args": ["-y", "Toss Invest"] } }

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Technical Specs & Signals

CategoryDeveloper Tools

33Quality signal: Emerging · 33/100How 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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More in 💻 Developer Tools →Best MCP servers for Developers →Alternatives to Toss Invest →Install in Claude Desktop Install in Cursor Install in VS Code