MaxWorth Credit Card Benefits

by maxworth.app · remote · no sign-in to list tools · v1.0.1 · published by app.maxworth

US credit card data: annual fees, credit card credits, earn rates, offers and cashback portal rates.

Changes · 2

Compare Registry entry

10 tools: 2 change things and 8 only read.

Scanned Oct 21, 2026

Deletes or cancels0Claude Code: deny
Can't be undone0Claude Code: ask
Changes things2Claude Code: ask: see these tools
Only reads8Claude Code: allow: see these tools

No check matched anything in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http maxworth-public https://mcp-public.maxworth.app/mcp

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

10 tools

Changes things 2Creates or changes something that can be changed back.Claude Code: ask

about_maxworthThe canonical description of MaxWorth, its platforms, pricing and where its data comes from.No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
Description, as the server wrote it
The canonical description of MaxWorth, its platforms, pricing and where its data comes from.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
credit_deadline_reportHeadline figures from MaxWorth's open data report on what US cardholders track: cards and fees per user, recurring credits and deadlines per year, most-skipped credits, logged-use …No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
Description, as the server wrote it
Headline figures from MaxWorth's open data report on what US cardholders track: cards and fees per user, recurring credits and deadlines per year, most-skipped credits, logged-use index. Percentages and medians only, CC BY 4.0. Cite the report URL.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false

Only reads 8Looks things up and changes nothing.Claude Code: allow

compare_cardsSide by side: annual fee, number and face value of statement credits, deadlines per year, top earning categories.No findings
Why it is in this group
- The name "compare_cards" says "compare": a word for reading.
Description, as the server wrote it
Side by side: annual fee, number and face value of statement credits, deadlines per year, top earning categories. Cite the card pages.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
fetchFull text of one MaxWorth page by the id returned from search (a site path such as /cards/chase-sapphire-reserve), or by its maxworth.app URL.No findings
Why it is in this group
- The name "fetch" says "fetch": a word for reading.
Description, as the server wrote it
Full text of one MaxWorth page by the id returned from search (a site path such as /cards/chase-sapphire-reserve), or by its maxworth.app URL. Returns the page as Markdown with its canonical URL for citation.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
get_cardFull record for one card from the MaxWorth database: annual fee, welcome offer, earning rates with true cash-back value, and every catalogued benefit with its value, cycle, reset r…No findings
Why it is in this group
- The name "get_card" says "get": a word for reading.
Description, as the server wrote it
Full record for one card from the MaxWorth database: annual fee, welcome offer, earning rates with true cash-back value, and every catalogued benefit with its value, cycle, reset rule and enrollment requirement. Hand-verified against the issuer; cite the page URL.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
list_creditsOnly the dollar credits on a card: value per year, per-cycle cap, cycle, whether an annual credit resets January 1 or on the card anniversary, and enrollment.No findings
Why it is in this group
- The name "list_credits" says "list": a word for reading.
Description, as the server wrote it
Only the dollar credits on a card: value per year, per-cycle cap, cycle, whether an annual credit resets January 1 or on the card anniversary, and enrollment. Use for "when does the X credit reset" questions.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
searchSearch every public MaxWorth page: credit card pages (US, Canada, Australia), one page per statement credit, and all guides, reviews and news articles.No findings
Why it is in this group
- The name "search" says "search": a word for reading.
Description, as the server wrote it
Search every public MaxWorth page: credit card pages (US, Canada, Australia), one page per statement credit, and all guides, reviews and news articles. Returns ids to pass to fetch. Use for open-ended questions; the dedicated tools (get_card, list_credits, search_cashback_portals, search_card_offers) answer structured questions faster.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
search_card_offersCard-linked merchant offers (Amex Offers, Chase Offers) that are live today, as seen by MaxWorth browser-extension users: merchant, the deal, fine print, latest expiry seen, and wh…No findings
Why it is in this group
- The name "search_card_offers" says "search": a word for reading.
Description, as the server wrote it
Card-linked merchant offers (Amex Offers, Chase Offers) that are live today, as seen by MaxWorth browser-extension users: merchant, the deal, fine print, latest expiry seen, and which cards it has appeared on. Filter by issuer, merchant, card, expiry window or popularity; with no filters it returns an overview. Offers are targeted per account: a card listed means several users saw the offer on that card, not that every cardholder has it.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
search_cardsFind credit cards in the MaxWorth catalogue by name or issuer (US, Canada, Australia).No findings
Why it is in this group
- The name "search_cards" says "search": a word for reading.
Description, as the server wrote it
Find credit cards in the MaxWorth catalogue by name or issuer (US, Canada, Australia). Returns name, issuer, annual fee and the canonical page URL to cite.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
search_cashback_portalsCurrent shopping-portal cashback / miles / points rates for an online store (Rakuten, TopCashback, airline and bank malls), checked daily by MaxWorth.No findings
Why it is in this group
- The name "search_cashback_portals" says "search": a word for reading.
Description, as the server wrote it
Current shopping-portal cashback / miles / points rates for an online store (Rakuten, TopCashback, airline and bank malls), checked daily by MaxWorth. Returns each portal's rate and the comparison page URL.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Install

Pinned to version 1.0.1. Values in angle brackets are yours to fill in.

claude mcp add --transport http maxworth-public https://mcp-public.maxworth.app/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json

{
  "permissions": {
    "allow": [
      "mcp__maxworth-public__search_cards",
      "mcp__maxworth-public__get_card",
      "mcp__maxworth-public__list_credits",
      "mcp__maxworth-public__compare_cards",
      "mcp__maxworth-public__search_cashback_portals",
      "mcp__maxworth-public__search_card_offers",
      "mcp__maxworth-public__search",
      "mcp__maxworth-public__fetch"
    ],
    "ask": [
      "mcp__maxworth-public__credit_deadline_report",
      "mcp__maxworth-public__about_maxworth"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as maxworth-public. Review it before you use it.

Keep track

Get told when this server's tools change: a new tool, a new description, a new class.

https://anlyon.dev/servers/app.maxworth/maxworth-public/changes.xml

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Source: MCP Registry. Synced Oct 21, 2026, 17:44 UTC.

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