Twelvedata MCP: MCP server, setup and security

What Twelvedata MCP does

According to its repository: “Real-time and historical financial market data from the Twelve Data APIs.”

An MCP server gives an AI agent extra tools it calls during the conversation: the agent reads their description, decides to use them and gets the result back. Twelvedata MCP is listed under Finance and payments, a category of 202 servers in the directory, where it ranks #39 by stars.

Topics declared by the repository: claude, twelvedata.

Installing and connecting Twelvedata MCP

Distribution modes declared in the official MCP registry:

• remote server (streamable-http): you connect to it by URL, with nothing to install locally

Like any MCP server, you declare it in your client's configuration (Claude Desktop, Claude Code, Cursor, VS Code, Codex…): a name, the command that starts it or its URL, and any environment variables. The client then starts it and lists its tools. Project language: Python.

Security: what to check

An MCP server runs code with the rights you give it, and the model reads its tool descriptions: a malicious or compromised server can hijack the agent. Read the code, or pick a maintained and widely used server, before connecting it.

Points found for Twelvedata MCP:

• No licence: without a licence the code is not legally reusable, even if it is public. Avoid it in a company setting without the author's agreement.

Good practice: grant only the rights needed (least privilege), require human approval for irreversible actions, and run the AI agent security check.

Project activity and maintenance

Created on May 27, 2025, the twelvedata/mcp repository has 84 stars and 26 forks, with 4 open issues. It has more stars than 63% of the servers in the directory. It received changes this month. Version published in the registry: 2.0.0 (July 23, 2026).

Stars measure attention, not quality: a recent, heavily promoted project can collect them fast, while a useful but niche server will have few.