Compare cashback rates across portals and discounted gift cards for stores in 30+ countries.
GotCashback is a remote MCP server published at mcp.gotcashback.com. It has been probed 6 times since 9/12/2026. It answered in 6 of them (100.0%), a near-uninterrupted record. Median response time is 961 ms, a delay an agent will notice. It exposes a broad tool surface of 18 tools. On the protocol side it still runs 2025-11-25 and has not moved to the newer spec.
Can an LLM agent pick the right tool here — names, descriptions and parameter clarity are assessed.
get_cashback_rates_by_store_id — No explicit error handling for invalid store_id mentioned.get_portals — Description is cut off mid-sentence, reducing clarity.get_gift_cards_by_store_id — No mention of handling cases where no gift cards exist for a store.tools/list structure, inputSchema validity, and a functional smoke test — the components of the 0-100 score.
Tools the server advertised in the latest measurement — measured, not catalog-claimed.
get_portalsReturns the cashback portals GotCashback compares, optionally for one country, each with its payout terms. Use it to list the portals available in a country ('which cashback portals are there in Canada?') or to compare portals side by side — which pays fastest, has the lowest minimum payout, offers PayPal, or gives the biggest sign-up bonus. It does not return store rates: for 'which portal has the best cashback for [store]' call get_cashback_rates_by_store_name instead; for one named portal use get_portals_by_name. Each portal includes its payout terms for that country: 'sign_up_bonus' (amount and the url that grants it, null when none), 'minimum_payout' with 'minimum_payout_currency' (smallest balance paid out, null when not published, 0 means no minimum), 'payment_frequency' (how often
country_codestringget_cashback_rates_by_store_idReturns the current online and in-store cashback rates from every cashback portal for one store identified by its numeric store_id, so the user can compare every portal and see the best. Use it only when a store_id is already known from an earlier result (a store, deals, favorites or alerts response). When the user gives a store name instead, call get_cashback_rates_by_store_name directly — do not look the id up first. Returns an error when the id does not exist. Rates reflect GotCashback's current data, refreshed several times a day. Present every returned portal's rate to the user (a table with a link column, not only the best one) and always show each rate's 'url' as a clickable link — cashback is only credited when the user clicks through it.
store_idintegerrequiredget_countriesReturns the countries GotCashback covers, each with the lowercase ISO 3166-1 alpha-2 'code' to pass as country_code to the other tools (the United Kingdom is 'gb'). Use it only to confirm whether a country is supported or which code to use; it is not needed before store, cashback or gift card lookups — those tools accept country_code directly and search all countries when it is omitted.
get_gift_cards_by_store_idReturns the discounted gift cards currently on sale for one store identified by its numeric store_id, from multiple sellers, so the discounts can be compared. Use it only when a store_id is already known from an earlier result. When the user gives a store name instead, call get_gift_cards_by_store_name directly — do not look the id up first. Returns an empty list when no discounted cards are available and an error when the id does not exist. Present every returned seller's listing to the user (a table with a link column, not only the best discount) and always show each gift card's 'url' as a clickable link — that tracked link is where the user buys the card at the discounted price.
store_idintegerrequiredget_portals_by_nameSearches cashback portals by name (e.g. 'Rakuten', 'TopCashback', 'Honey') and returns each match with its payout terms, one entry per country the portal operates in. Use it when the user asks about a named portal: its sign-up bonus, minimum payout, how often it pays, or which payout methods it offers. For a store's cashback rate at that portal, call get_cashback_rates_by_store_name and read the 'portal' field of each rate instead. Each portal includes its payout terms for that country: 'sign_up_bonus' (amount and the url that grants it, null when none), 'minimum_payout' with 'minimum_payout_currency' (smallest balance paid out, null when not published, 0 means no minimum), 'payment_frequency' (how often it pays, e.g. 'On demand', 'Weekly', 'Monthly'), and 'payment_methods' (payout options
portal_namestringrequiredcountry_codestringget_stores_by_countryLists every store that currently has cashback offers in one country — identity, store page url and whether discounted gift cards exist ('has_gift_cards', 'gift_cards_url'), but no rates. The list can run to hundreds of stores. Use it when the user wants to browse or count what is available in a country ('which stores offer cashback in Canada?', 'what stores have gift card deals in the UK?'). Do not use it to find a particular store or its rates: get_cashback_rates_by_store_name and get_gift_cards_by_store_name accept a store name plus an optional country_code directly. Use get_countries to see the supported country codes. When presenting stores, include each store's 'url' as a clickable link (and 'gift_cards_url' when present).
country_codestringrequiredget_my_alertsReturns the signed-in user's cashback and gift card alerts. Use it for 'what alerts do I have?' or before changing an alert. Each alert carries store_id, alert_type ('cashback' or 'gift_card'), threshold_percent and the last notification; pass store_id and alert_type straight to set_store_alert or remove_store_alert — the values are identical. Requires OAuth sign-in with a GotCashback account and the 'alerts' scope; anonymous callers are prompted to authorize.
get_gift_cards_by_store_nameFinds a store by name and returns the discounted gift cards currently on sale for it from multiple gift card sellers — face value, price, discount percent, digital or physical — so the user can compare every seller and see the best discount. This is the preferred first call for any gift card question that names a store: 'best gift card discount for Gap', 'where can I buy discounted Instacart gift cards', 'compare Home Depot gift card discounts', 'current Target gift card deals'. No prior lookup is needed. Returns every matching store (best match first, one entry per country), each with its 'gift_cards' list and a 'gift_cards_url' page; an empty 'gift_cards' list means no discounted cards right now. Use get_gift_cards_by_store_id only when a store_id is already known, and get_cashback_rates
store_namestringrequiredcountry_codestringget_my_profileReturns the signed-in user's GotCashback profile (name, email, avatar). Use it when the user asks who they are signed in as or wants their account details. Requires OAuth sign-in with a GotCashback account; anonymous callers are prompted to authorize. All comparison tools work without signing in. Scope: 'profile'.
get_stores_by_nameSearches stores by name and returns the matching stores' identity only — store_id, name, country_code, website domain and GotCashback store page url — without cashback rates or gift cards. Use it when the user wants to know whether GotCashback covers a store, in which countries a store is listed, or when you need a store_id for the account tools (toggle_favorite_store, set_store_alert). For any question about cashback rates or gift card discounts call get_cashback_rates_by_store_name or get_gift_cards_by_store_name directly instead — they search by name themselves, so this tool is not a required first step. Returns matches best first; empty when nothing matched. When presenting stores, include each store's 'url' as a clickable link (and 'gift_cards_url' when present).
store_namestringrequiredcountry_codestringget_portal_by_idReturns one cashback portal by its numeric id (the 'id' from a get_portals or get_portals_by_name result) with its payout terms for that country. Use it only when the id is already known; when the user names a portal, call get_portals_by_name instead. Returns an error when the id does not exist. Each portal includes its payout terms for that country: 'sign_up_bonus' (amount and the url that grants it, null when none), 'minimum_payout' with 'minimum_payout_currency' (smallest balance paid out, null when not published, 0 means no minimum), 'payment_frequency' (how often it pays, e.g. 'On demand', 'Weekly', 'Monthly'), and 'payment_methods' (payout options, e.g. 'PayPal', 'Direct deposit', 'Check', 'Gift card'). Use these to answer questions about a portal's sign-up bonus, payout threshold, p
portal_idintegerrequiredget_cashback_rates_by_store_nameFinds a store by name and returns its current cashback rates from every cashback portal that lists it — online and in-store, percentage or fixed amount, with 'up to' flags — so the user can compare every portal and see the best. This is the preferred first call for any cashback question that names a store: 'best cashback for Walmart', 'highest Nike cashback', 'cashback at Expedia', 'Walmart cashback today', 'compare Walmart cashback portals', 'Best Buy in-store cashback', 'Dell cashback in Germany'. No prior lookup is needed — do not call get_stores_by_name, get_stores_by_country or get_countries first. Returns every matching store (best match first, one entry per country), each with its 'cashback_rates'; an empty list means no match — retry with a shorter name or without country_code. Use
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| Run | Era | Modern | ms | Legacy | ms | Versions |
|---|---|---|---|---|---|---|
| 2026-09-13 01:33:33 | Legacy | 400 | 870 | 200 | 1088 | 2025-11-25 |
| 2026-09-12 23:31:36 | Legacy | 400 | 1066 | 200 | 1209 | 2025-11-25 |
| 2026-09-12 21:29:15 | Legacy | 400 | 968 | 200 | 1136 | 2025-11-25 |
| 2026-09-12 19:27:29 | Legacy | 400 | 946 | 200 | 961 | 2025-11-25 |
| 2026-09-12 17:24:09 | Legacy | 400 | 828 | 200 | 827 | 2025-11-25 |
| 2026-09-12 15:21:42 | Legacy | 400 | 831 | 200 | 869 | 2025-11-25 |
Each block is one measurement round. Green: working response. Amber: responded but the server was returning errors (5xx). Red: no response at all.
Each cell is one probe run. Faded cells are incomplete probes — one leg did not answer, so the era is inconclusive.
The two probe legs separately: modern server/discover and legacy initialize.
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