MaxWorth Credit Card Benefits
REMOTE · MCP-PUBLIC.MAXWORTH.APP
US credit card data: annual fees, credit card credits, earn rates, offers and cashback portal rates.
Available components
Last scanned (2 hours ago)
Scores higher than 93% of remote servers
Reachable. Last reached 5 Nov 2026.
Category Finance and Payments
How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score → Why this is hard to score →
Endpoint Security80
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one. See how to fix → View diagnostics → Partial
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- The HSTS (Strict-Transport-Security) header is present. View diagnostics → Pass
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability78
- 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).Pass
- AI-judged instruction clarity (good).Pass
- Tool/resource definitions use about 1100 tokens (~100/item across 11 items; 10 tools + 1 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management93
- Stability observed for 28 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage92
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 74% of tool parameters carry a description.Partial
- Structured output schemas are declared (20% of tools); any adoption earns full credit.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 10 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 12 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a current MCP spec version (2026-07-28).Pass
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 3 Nov 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 83 to 87. That category is still filling its 30-day observation window: 25 days of observed history at the previous scan, 26 at this one. The score rises as the window fills, whether or not the server changes.
- 1 Nov 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 77 to 80. That category is still filling its 30-day observation window: 23 days of observed history at the previous scan, 24 at this one. The score rises as the window fills, whether or not the server changes.
- 30 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 70 to 73. That category is still filling its 30-day observation window: 21 days of observed history at the previous scan, 22 at this one. The score rises as the window fills, whether or not the server changes.
- 28 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 63 to 67. That category is still filling its 30-day observation window: 19 days of observed history at the previous scan, 20 at this one. The score rises as the window fills, whether or not the server changes.
- 26 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 57 to 60. That category is still filling its 30-day observation window: 17 days of observed history at the previous scan, 18 at this one. The score rises as the window fills, whether or not the server changes.
- 24 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 50 to 53. That category is still filling its 30-day observation window: 15 days of observed history at the previous scan, 16 at this one. The score rises as the window fills, whether or not the server changes.
- 22 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 43 to 47. That category is still filling its 30-day observation window: 13 days of observed history at the previous scan, 14 at this one. The score rises as the window fills, whether or not the server changes.
- 19 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 33 to 37. That category is still filling its 30-day observation window: 10 days of observed history at the previous scan, 11 at this one. The score rises as the window fills, whether or not the server changes.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 5 Nov 2026 · Probed https://mcp-public.maxworth.app/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=mcp-public.maxworth.app | CN=YR2,O=Let's Encrypt,C=US | 5 Oct 2026 | 3 Jan 2027 | RSA 2048 | SHA256-RSA | 54c18961eab4dde7e12d728759b4b8068c4 |
| SANs: mcp-public.maxworth.app | ||||||
| CN=YR2,O=Let's Encrypt,C=US (CA) | CN=Root YR,O=ISRG,C=US | 3 Sept 2025 | 2 Sept 2028 | RSA 2048 | SHA256-RSA | 4ebd24947e24d394802d84a52fd5b319 |
| CN=Root YR,O=ISRG,C=US (CA) | CN=ISRG Root X1,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | RSA 4096 | SHA256-RSA | f24b6d17f9d9ad7cb1c9fea78782699f |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of mcp-public.maxworth.app. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| app. | present | 23684 | 8 | Verified |
| maxworth.app. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
| Header | Value |
|---|---|
| strict-transport-security | max-age=63072000 |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://mcp-public.maxworth.app/mcp | Verified | 200 | |
| http (plaintext) | http://mcp-public.maxworth.app/mcp | HTTPS enforced | 308 | https://mcp-public.maxworth.app/mcp |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
about_maxworth What MaxWorth is ~27
The canonical description of MaxWorth, its platforms, pricing and where its data comes from.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
compare_cards Compare two or three cards ~66
Side by side: annual fee, number and face value of statement credits, deadlines per year, top earning categories. Cite the card pages.
| Name | Type | Req | Description |
|---|---|---|---|
| cards | array | yes | – |
| country | string | – | Restrict to one market: us, ca (Canada) or au (Australia). |
No output schema declared.
No examples provided.
credit_deadline_report Credit Deadline Report 2026 (MaxWorth data) ~68
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.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
fetch Fetch a MaxWorth page ~73
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.
| Name | Type | Req | Description |
|---|---|---|---|
| id | string | yes | Document id from search, or a maxworth.app URL |
| Name | Type | Req | Description |
|---|---|---|---|
| id | string | yes | – |
| metadata | object | – | – |
| text | string | yes | – |
| title | string | yes | – |
| url | string | yes | – |
No examples provided.
get_card Get a card: fee, earn rates, every benefit ~114
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.
| Name | Type | Req | Description |
|---|---|---|---|
| card | string | yes | Card name or website slug, e.g. "Amex Platinum" or "chase-sapphire-reserve" |
| country | string | – | Restrict to one market: us, ca (Canada) or au (Australia). |
No output schema declared.
No examples provided.
list_credits List a card's statement credits with reset dates ~86
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.
| Name | Type | Req | Description |
|---|---|---|---|
| card | string | yes | – |
| country | string | – | Restrict to one market: us, ca (Canada) or au (Australia). |
No output schema declared.
No examples provided.
search Search MaxWorth ~106
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.
| Name | Type | Req | Description |
|---|---|---|---|
| query | string | yes | Search query, e.g. "Amex Platinum hotel credit" or "best credit card tracker apps" |
| Name | Type | Req | Description |
|---|---|---|---|
| results | array | yes | – |
No examples provided.
search_card_offers Live Amex / Chase card-linked offers ~206
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.
| Name | Type | Req | Description |
|---|---|---|---|
| card | string | – | List offers seen on one card, e.g. "Chase Sapphire Preferred" or "Amex Gold" |
| expiring_within_days | integer | – | Only offers whose latest seen expiry is within this many days |
| issuer | string | – | – |
| limit | integer | – | – |
| merchant | string | – | Store or brand, e.g. "nike", "hilton", "youtube" |
| popular_only | boolean | – | Only offers MaxWorth flags as popular |
No output schema declared.
No examples provided.
search_cards Search credit cards ~103
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.
| Name | Type | Req | Description |
|---|---|---|---|
| country | string | – | Restrict to one market: us, ca (Canada) or au (Australia). |
| limit | integer | – | – |
| query | string | yes | Card name or part of it, e.g. "sapphire reserve", "amex gold", "aeroplan" |
No output schema declared.
No examples provided.
search_cashback_portals Cashback portal rates for a store ~90
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.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | How many matching stores to return |
| store | string | yes | Store name or domain, e.g. "nike", "bestbuy.com" |
No output schema declared.
No examples provided.
How do I install the MaxWorth Credit Card Benefits MCP server?
MaxWorth Credit Card Benefits is a hosted endpoint at https://mcp-public.maxworth.app/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
remote · mcp-public.maxworth.app
claude mcp add --transport http app-maxworth-maxworth-public 'https://mcp-public.maxworth.app/mcp'
What is the MaxWorth Credit Card Benefits MCP server?
MaxWorth Credit Card Benefits is an MCP server listed in the public MCP registry as app.maxworth/maxworth-public. US credit card data: annual fees, credit card credits, earn rates, offers and cashback portal rates. This page covers its hosted endpoint (https://mcp-public.maxworth.app/mcp).
Is the MaxWorth Credit Card Benefits MCP server safe to use?
MaxWorth Credit Card Benefits scores 86 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the MaxWorth Credit Card Benefits MCP server expose?
MaxWorth Credit Card Benefits exposes 10 tools: search_cards, get_card, list_credits, compare_cards, search_cashback_portals, and 5 more. Their descriptions and schemas cost roughly 939 tokens of context every time the server is loaded.
Does the MaxWorth Credit Card Benefits MCP server require authentication?
No. We connected to MaxWorth Credit Card Benefits without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the MaxWorth Credit Card Benefits MCP server still maintained?
MaxWorth Credit Card Benefits is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.