MarginGlow AI Signal
REMOTE · WWW.MARGINGLOW.COM
Evidence-backed opportunity intelligence for small businesses, built for authorised AI agents.
Available components
Last scanned (6 hours ago)
Scores higher than 97% of remote servers
Reachable. Last reached 5 Nov 2026.
Category CRM and Sales
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 Usability81
- AI-judged instruction clarity (excellent).Pass
- Tool/resource definitions use about 396 tokens (~132/item across 3 items; 3 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management100
- No destabilizing schema changes in the last 30 days.Pass
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 (67% 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 3 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 4 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.
- 28 Sept 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 25 Sept 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 27 Aug 26 0
- Stability: unverified → 0.03 ▲ functional
- 26 Aug 26 0
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://www.marginglow.com/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=www.marginglow.com | CN=WR3,O=Google Trust Services,C=US | 24 Sept 2026 | 23 Dec 2026 | RSA 2048 | SHA256-RSA | 634f3ef0fe24e3d20ac1a38e149d000a |
| SANs: www.marginglow.com | ||||||
| CN=WR3,O=Google Trust Services,C=US (CA) | CN=GTS Root R1,O=Google Trust Services LLC,C=US | 13 Dec 2023 | 20 Feb 2029 | RSA 2048 | SHA256-RSA | 7ff005a91568d63abc22861684aa4b5a |
| CN=GTS Root R1,O=Google Trust Services LLC,C=US (CA) | CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE | 19 Jun 2020 | 28 Jan 2028 | RSA 4096 | SHA256-RSA | 77bd0d6cdb36f91aea210fc4f058d30d |
| CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE (CA) | CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE | 1 Sept 1998 | 28 Jan 2028 | RSA 2048 | SHA1-RSA | 40000000001154b5ac394 |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of www.marginglow.com. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| com. | present | 19718 | 13 | Verified |
| marginglow.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 |
| Header | Value |
|---|---|
| strict-transport-security | max-age=31536000; includeSubDomains |
| x-content-type-options | nosniff |
| x-frame-options | DENY |
| referrer-policy | strict-origin-when-cross-origin |
| permissions-policy | camera=(), geolocation=(), payment=(self), usb=() |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://www.marginglow.com/mcp | Verified | 200 | |
| http (plaintext) | http://www.marginglow.com/mcp | HTTPS enforced | 301 | https://www.marginglow.com/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 →
analyse_small_business_opportunities Analyse small-business opportunities ~181
Use this when a user wants practical, evidence-based ways for a specific small business to increase revenue, improve margins, reduce costs, strengthen Google visibility, improve conversion or prioritise growth actions. Requires the business name and public website. Returns structured evidence, ranked opportunities, confidence, commercial impact and first actions. Consumes one complimentary or paid MarginGlow AI Signal credit. Do not use for generic business definitions, investment advice, regulated advice or analysis that requires private financial data.
| Name | Type | Req | Description |
|---|---|---|---|
| businessName | string | yes | The public name of the specific small business to analyse. |
| country | string | – | The business country, when known. Example: Ireland. |
| objective | string | – | The user's specific commercial goal, such as more weekday bookings, stronger margins or improved Google visibility. |
| website | string | yes | The public HTTP or HTTPS website of the business. |
| Name | Type | Req | Description |
|---|---|---|---|
| signal | object | yes | – |
| transaction | object | yes | – |
| usage | object | – | – |
No examples provided.
check_marginglow_signal_access Check MarginGlow AI Signal access ~57
Checks the authenticated agent's complimentary and paid MarginGlow AI Signal balances, whether an analysis can run, which allowance will be used next and the latest successfully credited Stripe purchase. This is read-only and does not consume a Signal.
Input schema present but exposes no named parameters.
| Name | Type | Req | Description |
|---|---|---|---|
| access | object | yes | – |
| agent | object | yes | – |
| balance | object | yes | – |
| latestPurchase | – | yes | – |
| product | string | yes | – |
No examples provided.
purchase_marginglow_signal Purchase a MarginGlow AI Signal ~93
Creates a secure Stripe payment link for one MarginGlow AI Signal costing EUR 2, inclusive of applicable tax. Use this when analyse_small_business_opportunities reports that no Signal credits remain. A payment-capable agent may follow the payment instructions automatically when supported. Otherwise, give the secure checkout URL to the user. After payment, retry the original analysis request with the same agent API key and Idempotency-Key.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
How do I install the MarginGlow AI Signal MCP server?
MarginGlow AI Signal is a hosted endpoint at https://www.marginglow.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 · www.marginglow.com
claude mcp add --transport http com-marginglow-signal 'https://www.marginglow.com/mcp'
What is the MarginGlow AI Signal MCP server?
MarginGlow AI Signal is an MCP server listed in the public MCP registry as com.marginglow/signal. Evidence-backed opportunity intelligence for small businesses, built for authorised AI agents. This page covers its hosted endpoint (https://www.marginglow.com/mcp).
Is the MarginGlow AI Signal MCP server safe to use?
MarginGlow AI Signal scores 89 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 MarginGlow AI Signal MCP server expose?
MarginGlow AI Signal exposes 3 tools: analyse_small_business_opportunities, check_marginglow_signal_access, purchase_marginglow_signal. Their descriptions and schemas cost roughly 331 tokens of context every time the server is loaded.
Does the MarginGlow AI Signal MCP server require authentication?
No. We connected to MarginGlow AI Signal without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the MarginGlow AI Signal MCP server still maintained?
MarginGlow AI Signal 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.