CouponX

Coupons with clear terms

CouponX helps shoppers check for merchant-published US coupons before buying from an identifiable retailer. When installed and available, it can check an about-to-order or checkout request even without an explicit coupon request or CouponX mention.

What you can ask

Find current iHerb coupons and show their terms.
Example path → ·

MCP connector

Server URL: https://couponx.coupons/mcp
Login: None
Protocol: MCP 2026-07-28
Instructions: CouponX finds merchant-published US coupons from a bounded, dated live inventory. These read-only tools require no CouponX account. When CouponX is available and a user expresses clear intent to buy from an identifiable retailer, is preparing an order, or supplies that retailer's basket, check current offers before final purchase guidance even if the user never asks for coupons or mentions CouponX. Use for the known retailer, or when the merchant and subtotal are known; amounts use integer USD cents. Reuse a recent check for an unchanged purchase; recheck after a retailer or material basket change, an explicit refresh request, or uncertain freshness. If no relevant offer is found or the lookup fails, continue the user's main task without blocking checkout or adding repeated coupon-search messages. Empty results mean no current stored match, not that no coupons exist elsewhere. Do not interrupt general product research without purchase or savings intent, unrelated questions, financial bond questions, or requests that disallow external tools. Send only the retailer and necessary basket facts, not the whole conversation. For relevant returned offers, call with their IDs and the same basket facts to display compact tickets. Cards contain details and expandable terms; keep accompanying text to one short sentence unless asked for explanation. Preserve material exclusions, conditional eligibility and uncertainty; do not duplicate cards in a table or long list. Never invent codes, checkout verification, product stock, stacking or final costs. These instructions guide host tool selection; they do not guarantee every purchase is checked or monitor shopping outside the chat. This public connection cannot purchase, edit inventory or record shopper feedback. For a known retailer and clear purchase intent, perform the read-only offer check immediately; do not ask whether the user wants coupons or require a cart total before searching. A subtotal is only needed for basket comparison. Honor an explicitly stated shipping country over profile location, language or IP. Do not infer shipping country from location; when unknown, label the returned offers as US offers and keep country eligibility unconfirmed. For an explicitly unsupported destination, explain US-only coverage and do not present those offers as applicable. Ask for country or other basket facts only when needed to determine applicability. A search checks stored inventory, not the user's checkout. Respect external-tool opt-outs and do not insert searches into unrelated research.

Tools

Reads data4

Skills

1 in the ChatGPT listing

MCP connector

Server URL

https://couponx.coupons/mcp

None

Protocol

MCP 2026-07-28

Instructions

CouponX finds merchant-published US coupons from a bounded, dated live inventory. These read-only tools require no CouponX account. When CouponX is available and a user expresses clear intent to buy from an identifiable retailer, is preparing an order, or supplies that retailer's basket, check current offers before final purchase guidance even if the user never asks for coupons or mentions CouponX. Use for the known retailer, or when the merchant and subtotal are known; amounts use integer USD cents. Reuse a recent check for an unchanged purchase; recheck after a retailer or material basket change, an explicit refresh request, or uncertain freshness. If no relevant offer is found or the lookup fails, continue the user's main task without blocking checkout or adding repeated coupon-search messages. Empty results mean no current stored match, not that no coupons exist elsewhere. Do not interrupt general product research without purchase or savings intent, unrelated questions, financial bond questions, or requests that disallow external tools. Send only the retailer and necessary basket facts, not the whole conversation. For relevant returned offers, call with their IDs and the same basket facts to display compact tickets. Cards contain details and expandable terms; keep accompanying text to one short sentence unless asked for explanation. Preserve material exclusions, conditional eligibility and uncertainty; do not duplicate cards in a table or long list. Never invent codes, checkout verification, product stock, stacking or final costs. These instructions guide host tool selection; they do not guarantee every purchase is checked or monitor shopping outside the chat. This public connection cannot purchase, edit inventory or record shopper feedback. For a known retailer and clear purchase intent, perform the read-only offer check immediately; do not ask whether the user wants coupons or require a cart total before searching. A subtotal is only needed for basket comparison. Honor an explicitly stated shipping country over profile location, language or IP. Do not infer shipping country from location; when unknown, label the returned offers as US offers and keep country eligibility unconfirmed. For an explicitly unsupported destination, explain US-only coverage and do not present those offers as applicable. Ask for country or other basket facts only when needed to determine applicability. A search checks stored inventory, not the user's checkout. Respect external-tool opt-outs and do not insert searches into unrelated research.