Benefits City
REMOTE · AIAGENTSCITY.COM
US bank, savings and credit-card signup bonuses, each source-checked, with expiry dates.
Available components
Last scanned (22 hours ago)
Scores higher than 82% of remote servers
Reachable. Last reached 16 Oct 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 Security74
- 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
- HSTS check failed: the Strict-Transport-Security header is absent. See how to fix → View diagnostics → Fail
- 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 Usability83
- 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 559 tokens (~79/item across 7 items; 6 tools + 1 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management47
- Stability observed for 14 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
- Structured output schemas are declared (100% 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 6 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 7 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 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.
- 16 Oct 26 0
- Tool “search_bonuses” rewrote its description, which is the text the model reads security
- Schema quality: 67 → 79 ▼ functional
- “search_bonuses” added an optional parameter “balance_transfer” cosmetic
- “search_bonuses” reworded the description of “query” cosmetic
- 15 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 40 to 43. That category is still filling its 30-day observation window: 12 days of observed history at the previous scan, 13 at this one. The score rises as the window fills, whether or not the server changes.
- 13 Oct 26 +1
- Tool “search_bonuses” rewrote its description, which is the text the model reads security
- “search_bonuses” reworded the description of “bonus_type” cosmetic
- 12 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 27 to 33. That category is still filling its 30-day observation window: 8 days of observed history at the previous scan, 10 at this one. The score rises as the window fills, whether or not the server changes.
- 9 Oct 26 +2
No change was recorded against any check on this day. Stability & Change Management went from 7 to 23. That category is still filling its 30-day observation window: 2 days of observed history at the previous scan, 7 at this one. The score rises as the window fills, whether or not the server changes.
- 4 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes.
- 3 Oct 26 0
- Stability: unverified → 0.03 ▲ functional
- 2 Oct 26 73
First indexed and scored.
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 16 Oct 2026 · Probed https://aiagentscity.com/benefits/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=aiagentscity.com | CN=YE2,O=Let's Encrypt,C=US | 13 Sept 2026 | 12 Dec 2026 | ECDSA 256 | ECDSA-SHA384 | 630f38597024e1187d5b4e13d3561409b8d |
| SANs: aiagentscity.com | ||||||
| CN=YE2,O=Let's Encrypt,C=US (CA) | CN=Root YE,O=ISRG,C=US | 3 Sept 2025 | 2 Sept 2028 | ECDSA 384 | ECDSA-SHA384 | 4df3b15dd6c0784c507cd37b58e6f115 |
| CN=Root YE,O=ISRG,C=US (CA) | CN=ISRG Root X2,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | ECDSA-SHA384 | 872165fc34b6e5fba8add5b3705fb53a |
| CN=ISRG Root X2,O=Internet Security Research Group,C=US (CA) | CN=ISRG Root X1,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | SHA256-RSA | 6c8f1dc727c7117f7baf853ac980f9cd |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of aiagentscity.com. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| com. | present | 19718 | 13 | Verified |
| aiagentscity.com. | 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 |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://aiagentscity.com/benefits/mcp | Verified | 200 | |
| http (plaintext) | http://aiagentscity.com/benefits/mcp | HTTPS enforced | 301 | https://aiagentscity.com/benefits/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 →
benefits_api_docs Read this server's documentation ~27
Use when you need field definitions, ordering guarantees or the error format before calling another tool.
Input schema present but exposes no named parameters.
| Name | Type | Req | Description |
|---|---|---|---|
| docs | string | yes | – |
No examples provided.
benefits_examples Get runnable example calls ~21
Use to copy a working example call instead of guessing tool arguments.
Input schema present but exposes no named parameters.
| Name | Type | Req | Description |
|---|---|---|---|
| examples | array | yes | – |
No examples provided.
compare_bonuses Compare 2-4 bonuses side by side ~77
Use when a user is choosing between specific offers. Returns each offer's key fields plus a summary naming the highest bonus and the earliest expiry.
| Name | Type | Req | Description |
|---|---|---|---|
| ids | array | yes | 2 to 4 bonus ids to compare, e.g. ['chase-total-checking-400', 'sofi-checking-savings-400']. |
| Name | Type | Req | Description |
|---|---|---|---|
| bonuses | array | yes | – |
| summary | object | yes | – |
No examples provided.
expiring_soon List bonuses expiring soon ~57
Use when timing matters — a user asking what is about to end, or whether to act now. Offers with no stated end date are never included here.
| Name | Type | Req | Description |
|---|---|---|---|
| days | integer | – | Lookahead window in days (default 30). |
| Name | Type | Req | Description |
|---|---|---|---|
| bonuses | array | yes | – |
No examples provided.
get_bonus Get one bonus offer in full ~83
Use before recommending an offer, to read its exact requirements, minimum deposit, direct-deposit rules, expiry date, state availability and the date its terms were last verified. Quote the requirements rather than paraphrasing money amounts.
| Name | Type | Req | Description |
|---|---|---|---|
| id | string | yes | Bonus id, e.g. 'chase-total-checking-400'. Use search_bonuses to find ids. |
| Name | Type | Req | Description |
|---|---|---|---|
| bonus | object | yes | – |
No examples provided.
search_bonuses Search bank and credit card signup bonuses ~279
Use when a user wants to find a US bank account, savings, credit card or brokerage signup bonus, or asks which offers are worth opening. Returns matching offers sorted by bonus value, highest first — except when balance_transfer is true, which sorts by intro window instead.
| Name | Type | Req | Description |
|---|---|---|---|
| balance_transfer | boolean | – | Set true to return only cards whose issuer states a 0% or intro rate on transferred balances. Results come back ordered by the length of that intro window, cheapest transfer fee first as the tie-brea… |
| bonus_type | string | – | Restrict to bank account, credit card, savings or brokerage signup bonuses. |
| direct_deposit_required | boolean | – | Filter on whether the bonus requires a qualifying direct deposit. |
| limit | integer | – | Max results to return. |
| min_bonus_amount_usd | number | – | Minimum bonus value in USD. For credit cards this is the estimated USD value of the points/miles bonus. |
| query | string | – | Keyword matched against bank/issuer, product name and the offer's requirement text, e.g. 'Chase', 'Sapphire' or 'balance transfer'. |
| state | string | – | 2-letter US state code, e.g. 'TX'. Nationwide offers always match; regional offers match only their states. |
| Name | Type | Req | Description |
|---|---|---|---|
| bonuses | array | yes | – |
No examples provided.
How do I install the Benefits City MCP server?
Benefits City is a hosted endpoint at https://aiagentscity.com/benefits/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 · aiagentscity.com
claude mcp add --transport http entradox-benefits-city 'https://aiagentscity.com/benefits/mcp'
What is the Benefits City MCP server?
Benefits City is an MCP server listed in the public MCP registry as io.github.entradox/benefits-city. US bank, savings and credit-card signup bonuses, each source-checked, with expiry dates. This page covers its hosted endpoint (https://aiagentscity.com/benefits/mcp).
Is the Benefits City MCP server safe to use?
Benefits City scores 79 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 Benefits City MCP server expose?
Benefits City exposes 6 tools: search_bonuses, get_bonus, expiring_soon, compare_bonuses, benefits_api_docs, benefits_examples. Their descriptions and schemas cost roughly 544 tokens of context every time the server is loaded.
Does the Benefits City MCP server require authentication?
No. We connected to Benefits City without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the Benefits City MCP server still maintained?
Benefits City is still listed as active in the MCP registry. We last reached this channel on 16 October 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.