Connect Codex to Twelve Data
Set up in minutes
Choose where it runs
On your computer through your own Codex, or hosted in the cloud. The rest of setup adapts to your choice:
Pick what it can do in Twelve Data
A preset of real Twelve Data operations. Each one becomes a tool the agent can call, and it can't touch anything outside the list.
Connect Twelve Data
One sign-in. The agent acts through your account, scoped to the operations you picked.
Add your personal MCP link
The last step mints a private MCP URL for this agent and walks you through exactly this, with your real link filled in. The page flips to Connected the moment your Codex first calls in. Codex connects when a session starts — run codex, or restart a running one (in the Codex app, Restart).
Run this in your terminal. The Codex app shares its config, so it gets the server too
<your-link> is your personal server URL — setup mints it for you.
Tools Codex gets
Twelve Data
22 toolsRead this API key's current usage and limits.
Find instruments by ticker, name or identifier.
Read one page of the stock directory.
Read one page of available foreign exchange pairs.
Read one page of cryptocurrency pairs.
Read the latest available instrument price.
Read the latest instrument quote and market metadata.
Read a bounded window of OHLCV history.
Read the latest or historical forex or cryptocurrency rate.
Calculate a currency conversion; does not move funds.
Read the company profile.
Read valuation, financial and market statistics.
Read annual or quarterly income statements.
Read annual or quarterly balance sheets.
Read annual or quarterly cash flow statements.
Read dividends within an optional date window.
Read stock splits within an optional date window.
Read a bounded earnings history.
Read relative strength index values.
Read simple moving average values.
Read moving average convergence divergence values.
POST a batch of time-series reads, with individual outcomes preserved.
About Codex
Frequently asked questions
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Open your Codex agent in one click.
NoClick runs Codex for you with Twelve Data wired in as tools. Connect your account and run.