Find promo codes with Codex
Codex (the CLI and the IDE extension) reads MCP servers from one config file. Add CouponLlama there.
https://couponllama.com/mcpConnect Codex to CouponLlama
Run this in a terminal:
Terminal codex mcp add couponllama --url https://couponllama.com/mcpOr add it to ~/.codex/config.toml yourself:
~/.codex/config.toml [mcp_servers.couponllama] url = "https://couponllama.com/mcp"Restart Codex and run /mcp to see CouponLlama listed.
Check it works. Ask: “Use CouponLlama to see if there's a code for this store.”
Menus move between versions of Codex. If a step doesn’t match what you see, look for “MCP”, “connectors” or “integrations” in its settings; the server URL above is all it needs.
What to ask Codex
Tool reference“I'm about to check out at huegahouse.com. Is there a promo code?”
Codex calls find_promo_codes: find promo codes for a store.
“Find me a coupon for a pet supply store.”
Codex calls search_stores: search stores.
“What kinds of stores does CouponLlama have codes for?”
Codex calls list_categories: list categories.
“Any new beauty promo codes this week?”
Codex calls latest_promo_codes: latest promo codes.
“That code worked, thanks!”
Codex calls report_code_result: report whether a code worked.
Codex and CouponLlama
Does Codex support MCP servers?
Yes. Codex can connect to remote MCP servers such as CouponLlama's, which runs at https://couponllama.com/mcp. The steps on this page add it.
Do I need a CouponLlama account or API key?
No. The CouponLlama MCP server is free and public. Leave any authentication setting empty or set it to none.
What can Codex do once CouponLlama is connected?
It can find promo codes for a store, search stores, list categories, latest promo codes and report whether a code worked. Ask in plain words, for example “Is there a promo code for this store?”.