Official MCP RegistryListed
io.github.sjgiewont/if-the-card-fits
Which credit cards a household should carry, simulated over 5 years on weekly-verified terms.
First seen 27 Oct 2026. Evidence as of 27 Oct 2026.
4
Tools
From an anonymous probe
1
Source listings
Each with its own history
1
Recorded changes
Since first seen
Tools
| Tool | Description | Behaviour |
|---|---|---|
| compare_two | Two named cards head to head on the person's own spending: which one pays more, and by how much a year. Use this when they are choosing between two specific cards. For 'what should I get', use simulate_cards instead. | Not declared |
| keep_or_cancel | For cards the person already carries, says whether each one still earns its annual fee back on their spending, and what to move to if not. Pass the cards as `held`. Returns a verdict and a rounded yearly margin. | Not declared |
| simulate_cards | Given a year of spending by category, returns the three best credit cards and the best two-card combination, with what each is worth after its annual fee over the chosen horizon. Figures come from a model checked to the cent against an independent reference calculator, against card terms a person verified against the issuer's own page — the response says which catalog version and when each card was last checked. Always show the person the continueUrl: it reopens their own numbers on the site with the full breakdown, the rest of the ranking and offer alerts. Also show the disclosure string. | Not declared |
| spending_categories | The 19 categories this API scores spending against. Call this first and map the person's statement onto these ids before calling simulate_cards. | Not declared |
Change history
- Listed (registry)
| Source | Listing | First seen | Last seen | Versions |
|---|---|---|---|---|
| Official MCP Registry | io.github.sjgiewont/if-the-card-fits | 27 Oct 2026 | 27 Oct 2026 | 1 |