Codex
Wire CoinGecko into OpenAI’s Codex terminal coding agent — MCP server, SKILL, and prompt rules in one place.
Codex is OpenAI’s coding agent available in both terminal and native application for developers to build and ship applications using AI. Plug CoinGecko in through any combination of the three integrations below — they’re complementary, not exclusive.
1. Install the SKILL
The fastest setup. Gives Codex built-in knowledge of the CoinGecko API so it writes correct requests without you pasting reference docs every session.
Full instructions: SKILL docs.
2. Add the MCP Server
Connects Codex to live CoinGecko data — prices, market caps, onchain pools, OHLCV, NFTs, and more.
Add to your ~/.codex/config.toml (or project-level MCP config) with the following
Full instructions: MCP Server docs.
3. Add AI prompt rules
If you’re generating code that uses the official CoinGecko SDKs, drop our prompt rules into your AGENTS.md so Codex follows the right patterns (auth, retries, error handling).
What to try next
Once everything’s wired up, try asking Codex:
“Using the CoinGecko MCP, show me the top 10 trending pools on Base in the last 5 minutes and export them to CSV.”
“Write a Python script using coingecko-sdk that tracks my portfolio and sends me a Slack alert if any coin moves more than 10% in an hour.”