Cognita
REMOTE · COGNITA.FMELO.NET
Passive OSINT and security recon: DNS, TLS, email posture, IP reputation, CVE/KEV, CT logs.
Available components
Last scanned (16 hours ago)
Scores higher than 58% of remote servers
Reachable. Last reached 18 Oct 2026.
Category Security
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 Security66
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- Authorisation not fully verified: no authorisation is required to call this server, and 51 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe. See how to fix → View diagnostics → Unverified
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- The HSTS (Strict-Transport-Security) header is present. View diagnostics → Pass
- DNSSEC is configured correctly; the domain's records validate against the full chain to the root. View diagnostics → Pass
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability78
- AI-judged instruction clarity (excellent).Pass
- Context-footprint check failed: tool/resource definitions use about 6008 tokens (~117/item across 51 items; 51 tools + 0 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 Management7
- Stability observed for 2 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 Safety75
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- 0 of 1 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation; "zone_transfer_check" implies "transfer" and declares no destructiveHint at all, which the MCP spec reads as destructive by default. See how to fix → Fail
- An AI judge read all 51 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.
- 18 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.
- 17 Oct 26 0
- Stability: unverified → 0.03 ▲ functional
- Server version: 1.0.9786.7221 → 1.0.9786.20433 functional
- Server version: 1.0.9779.319 → 1.0.9786.7221 functional
- 16 Oct 26 67
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 18 Oct 2026 · Probed https://cognita.fmelo.net/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=fmelo.net | CN=WE1,O=Google Trust Services,C=US | 20 Aug 2026 | 18 Nov 2026 | ECDSA 256 | ECDSA-SHA256 | fe36533dcc8eac80ea6e11deb041bc8 |
| SANs: fmelo.net, *.fmelo.net | ||||||
| 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 secure
Validation of cognita.fmelo.net. — Secure
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| net. | present | 37331 | 13 | Verified |
| fmelo.net. | present | 2371 | 13 | Verified |
| cognita.fmelo.net. | Verified address RRset verified with the apex keys |
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=15552000; includeSubDomains; preload |
| content-security-policy | default-src 'self'; base-uri 'self'; object-src 'none'; frame-ancestors 'none'; form-action 'self'; img-src 'self' data: https://cdnjs.cloudflare.com https://*.tile.openstreetmap.org; style-src 'self' 'unsafe-inline' https://cdnjs.cloudflare.com; script-src 'self' 'nonce-Ak+Vre/4lgiYcmNJAYpSnA==' https://cdnjs.cloudflare.com; connect-src 'self'; font-src 'self' data:; upgrade-insecure-requests |
| x-content-type-options | nosniff |
| x-frame-options | SAMEORIGIN |
| referrer-policy | same-origin |
| permissions-policy | accelerometer=(), autoplay=(), camera=(), display-capture=(), encrypted-media=(), fullscreen=(self), geolocation=(), gyroscope=(), magnetometer=(), microphone=(), midi=(), payment=(), usb=() |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://cognita.fmelo.net/mcp | Verified | 200 | |
| http (plaintext) | http://cognita.fmelo.net/mcp | HTTPS enforced | 301 | https://cognita.fmelo.net/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 →
zone_transfer_check ~158
Test whether a domain's authoritative name servers allow a DNS zone transfer (AXFR) — a classic misconfiguration that leaks the entire zone (every hostname it holds) to anyone who asks (RFC 5936: AXFR must be limited to authorised secondaries). Returns a per-name-server verdict — 'transferred' (leaked — the finding), 'refused'/'notauth' (declined, the safe default), 'timeout'/'unreachable', or 'blocked' (the NS resolved to an internal address and wasn't contacted) — with a sample of the disclosed records. Read-only external check over DNS/TCP; never touches the target's application.
| Name | Type | Req | Description |
|---|---|---|---|
| domain | string | yes | Domain, e.g. example.com |
No output schema declared.
No examples provided.
How do I install the Cognita MCP server?
Cognita is a hosted endpoint at https://cognita.fmelo.net/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 · cognita.fmelo.net
claude mcp add --transport http net-fmelo-cognita 'https://cognita.fmelo.net/mcp'
What is the Cognita MCP server?
Cognita is an MCP server listed in the public MCP registry as net.fmelo/cognita. Passive OSINT and security recon: DNS, TLS, email posture, IP reputation, CVE/KEV, CT logs. This page covers its hosted endpoint (https://cognita.fmelo.net/mcp).
Is the Cognita MCP server safe to use?
Cognita scores 68 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 Cognita MCP server expose?
Cognita exposes 51 tools: asn_prefixes, cve_triage, typosquat_scan, email_header_analyzer, dns_propagation, and 46 more. Their descriptions and schemas cost roughly 6,008 tokens of context every time the server is loaded.
Does the Cognita MCP server require authentication?
No. We connected to Cognita without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the Cognita MCP server still maintained?
Cognita is still listed as active in the MCP registry. We last reached this channel on 18 October 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.