JeongSeongMok/tossinvest-openapi-mcp

Overview

An MCP server that exposes the Toss Securities Open API to AI agents via stdio. It allows tools like Claude, Cursor, and Codex to query and interact with Korean securities data and trading functions. Built in TypeScript, it follows the Model Context Protocol for standardized integration.

Best for

Best for
Developers building AI assistants for Korean securities trading

Use cases

• Automate financial data retrieval from Toss Securities
• Integrate trading prompts into AI coding assistants
• Build AI agents that can research Korean stock market

How to use

Install

npx -y tossinvest-openapi-mcp

Tools exposed

• get_api_overview
• list_categories
• list_endpoints
• search_endpoints
• get_endpoint
• list_schemas
• get_schema
• get_integration_guide
• generate_code_sample

Tested with

Claude Desktop, Claude Code, Cursor

Example client config

{\n  "mcpServers": {\n    "tossinvest-openapi": {\n      "command": "npx",\n      "args": ["-y", "tossinvest-openapi-mcp"]\n    }\n  }\n}

Notes

An MCP server that exposes the Toss Securities Open API to AI agents via stdio. It allows tools like Claude, Cursor, and Codex to query and interact with Korean securities data and trading functions. Built in TypeScript, it follows the Model Context Protocol for standardized integration.

1 stars on GitHub. Last updated 2026-06-10. Licensed MIT.

Use cases

• Automate financial data retrieval from Toss Securities
• Integrate trading prompts into AI coding assistants
• Build AI agents that can research Korean stock market

Pros

• Direct integration with popular AI development tools
• Standard MCP protocol enables interoperability
• TypeScript codebase easy to customize and extend

Cons

• Only supports stdio transport, no network streaming
• Requires a Toss Securities API key and Korean brokerage account
• Limited adoption (1 star) may indicate early or unstable state

Indexed from awesome-mcp-servers-punkpeye and enriched against its public facts.