DeducePuzzles
REMOTE · MCP.DEDUCEPUZZLES.COM
Daily verified seating and arrangement logic puzzle for IBPS, SBI and SSC reasoning practice.
Available components
Last scanned (3 hours ago)
Scores higher than 44% of remote servers
Reachable. Last reached 5 Nov 2026.
Category Education and Research
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 Security63
- 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 enforcement could not be verified: the plaintext port answered with HTTP 405, which proves neither a plaintext path nor enforcement. View diagnostics → Unverified
- 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 Usability34
- 0% of prompts and resources have a non-trivial description (not blank, and not just the item's name).Fail
- AI-judged instruction clarity (good).Pass
- Context-footprint check failed: tool/resource definitions use about 1002 tokens (~250/item across 4 items; 3 tools + 1 resources), over budget; trim descriptions and params. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management20
- Stability observed for 6 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
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 3 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 5 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
- Supports UI / widget rendering.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.
- 4 Nov 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 13 to 17. That category is still filling its 30-day observation window: 4 days of observed history at the previous scan, 5 at this one. The score rises as the window fills, whether or not the server changes.
- 2 Nov 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 7 to 10. That category is still filling its 30-day observation window: 2 days of observed history at the previous scan, 3 at this one. The score rises as the window fills, whether or not the server changes.
- 31 Oct 26 +1
- Stability: unverified → 0.03 ▲ functional
- 30 Oct 26 59
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 5 Nov 2026 · Probed https://mcp.deducepuzzles.com/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=deducepuzzles.com | CN=WE1,O=Google Trust Services,C=US | 30 Sept 2026 | 29 Dec 2026 | ECDSA 256 | ECDSA-SHA256 | bd46d9806bc3b6c51347eebea0004714 |
| SANs: deducepuzzles.com, mcp.deducepuzzles.com, *.mcp.deducepuzzles.com | ||||||
| CN=WE1,O=Google Trust Services,C=US (CA) | CN=GTS Root R4,O=Google Trust Services LLC,C=US | 13 Dec 2023 | 20 Feb 2029 | ECDSA 256 | ECDSA-SHA384 | 7ff31977972c224a76155d13b6d685e3 |
| CN=GTS Root R4,O=Google Trust Services LLC,C=US (CA) | CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE | 15 Nov 2023 | 28 Jan 2028 | ECDSA 384 | SHA256-RSA | 7fe530bf331343bedd821610493d8a1b |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of mcp.deducepuzzles.com. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| com. | present | 19718 | 13 | Verified |
| deducepuzzles.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://mcp.deducepuzzles.com/mcp | Verified | 200 | |
| http (plaintext) | http://mcp.deducepuzzles.com/mcp | Inconclusive | 405 |
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 →
get_daily_puzzle Today's bank exam puzzle ~375
Use this when the user wants to play today's DeducePuzzles board or a daily bank-exam arrangement puzzle. Returns a verified single-solution puzzle at medium difficulty from a daily rotation of seating, floor, box, scheduling, and ranking. Patterns follow IBPS, SBI, and RRB PO/Clerk; circular, row, box, and ranking also follow SSC. For a specific supported type, pass kind: if it is not today's type, the tool reports that limitation without starting a round. Do not use for syllogism, blood relations, quant, English, general awareness, general exam advice, product comparisons, billing or account support, or solving a puzzle supplied by the user. Not for planning real seating, seating charts, or schedules for an event, classroom, office, or exam hall. Attempts are counted per conversation, not per person. Omit attemptId to start; pass the returned attemptId and playerToken on later calls. Starting stores an anonymous round; it does not sign the user into the website.
| Name | Type | Req | Description |
|---|---|---|---|
| attemptId | string | – | Conversation id returned by get_daily_puzzle. Attempts are counted per conversation, not per person. Pass this same id on every later call in the conversation. |
| kind | string | – | Optional requested arrangement type. This checks today's rotation; it does not generate another type. Omit for any daily board. Use row for linear seating, circular for circular seating, and ranking… |
| playerToken | string | – | Anonymous token returned by an earlier get_daily_puzzle. Pass it back to keep this app's streak. Omit it to start a new one. Not an account, and not a website streak. 16–64 letters, digits, _ or -. |
No output schema declared.
No examples provided.
get_hint Clue-number hint ~169
Use this when the user asks for a hint on today's DeducePuzzles board. Names one clue to re-read, by number only. Does not reveal a person, a seat, a floor, or a rank. Do not use for a solution or a walkthrough. Attempts are counted per conversation, not per person.
| Name | Type | Req | Description |
|---|---|---|---|
| attemptId | string | yes | Conversation id returned by get_daily_puzzle. Attempts are counted per conversation, not per person. Pass this same id on every later call in the conversation. |
| playerToken | string | – | Anonymous token returned by an earlier get_daily_puzzle. Pass it back to keep this app's streak. Omit it to start a new one. Not an account, and not a website streak. 16–64 letters, digits, _ or -. |
No output schema declared.
No examples provided.
submit_attempt Grade an arrangement ~335
Use this when the user submits an order for today's DeducePuzzles board (seating, floor, box, scheduling, or order and ranking). Grades that one arrangement: right or wrong, attempts left, and whether the round is finished. A wrong guess does not say which clues it broke. The solution is included only once the round is finished. A percentile is included only when the arrangement is right, this is the player's first completed round today, the solve took at least five seconds, and at least five ranked solves of today's board exist here. A replay, a round that already saw the solution, or a solve under five seconds states no percentile. A placement exists only in this result. Do not use to grade a puzzle this server did not serve. Attempts are counted per conversation, not per person.
| Name | Type | Req | Description |
|---|---|---|---|
| arrangement | array | yes | Every person from today's board exactly once, in the order the question asks. Index 0 is position 1 (lowest floor, left end of a row, rank 1, or day 1). Example: ["Aman", "Beena", "Chetan", "Diya"]. |
| attemptId | string | yes | Conversation id returned by get_daily_puzzle. Attempts are counted per conversation, not per person. Pass this same id on every later call in the conversation. |
| playerToken | string | – | Anonymous token returned by an earlier get_daily_puzzle. Pass it back to keep this app's streak. Omit it to start a new one. Not an account, and not a website streak. 16–64 letters, digits, _ or -. |
No output schema declared.
No examples provided.
How do I install the DeducePuzzles MCP server?
DeducePuzzles is a hosted endpoint at https://mcp.deducepuzzles.com/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.deducepuzzles.com
claude mcp add --transport http com-deducepuzzles-daily-puzzle 'https://mcp.deducepuzzles.com/mcp'
What is the DeducePuzzles MCP server?
DeducePuzzles is an MCP server listed in the public MCP registry as com.deducepuzzles/daily-puzzle. Daily verified seating and arrangement logic puzzle for IBPS, SBI and SSC reasoning practice. This page covers its hosted endpoint (https://mcp.deducepuzzles.com/mcp).
Is the DeducePuzzles MCP server safe to use?
DeducePuzzles scores 62 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 DeducePuzzles MCP server expose?
DeducePuzzles exposes 3 tools: get_daily_puzzle, submit_attempt, get_hint. Their descriptions and schemas cost roughly 879 tokens of context every time the server is loaded.
Does the DeducePuzzles MCP server require authentication?
No. We connected to DeducePuzzles without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the DeducePuzzles MCP server still maintained?
DeducePuzzles 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.