# MarginGlow AI Signal (remote · www.marginglow.com)

Evidence-backed opportunity intelligence for small businesses, built for authorised AI agents.

- Trust score: 86/100 (high trust)
- Change this week: +3
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-09-20

## Components

- remote · `www.marginglow.com`: 86/100 (this document), [markdown](https://verifymcp.io/servers/com-marginglow-signal/www.md), [page](https://verifymcp.io/servers/com-marginglow-signal/www)

## Channel facts

- Endpoint: `https://www.marginglow.com/mcp`
- Transports: `streamable-http`
- Auth: `required`
- Version: `1.0.0`

## Trust breakdown

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. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-09-20.

- **Endpoint Security**: 80/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one.
  - HTTPS is enforced; there's no plaintext access path.
  - The HSTS (Strict-Transport-Security) header is present.
  - DNSSEC check failed: this domain isn't protected by DNSSEC.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 81/100
  - AI-judged instruction clarity (excellent).
  - Tool/resource definitions use about 396 tokens (~132/item across 3 items; 3 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 83/100
  - Stability observed for 25 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% of tool parameters carry a description.
  - Structured output schemas are declared (67% of tools); any adoption earns full credit.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 3 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 4 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### 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.

### Claude

```bash
claude mcp add --transport http com-marginglow-signal 'https://www.marginglow.com/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "com-marginglow-signal": {
      "url": "https://www.marginglow.com/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "com-marginglow-signal": {
      "type": "http",
      "url": "https://www.marginglow.com/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.com-marginglow-signal]
url = "https://www.marginglow.com/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "com-marginglow-signal": {
      "type": "remote",
      "url": "https://www.marginglow.com/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add com-marginglow-signal --url 'https://www.marginglow.com/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  com-marginglow-signal:
    url: "https://www.marginglow.com/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "com-marginglow-signal": {
      "Transport": "http",
      "Url": "https://www.marginglow.com/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add com-marginglow-signal -t streamable-http -u 'https://www.marginglow.com/mcp'
```

### Other

```json
{
  "mcpServers": {
    "com-marginglow-signal": {
      "type": "http",
      "url": "https://www.marginglow.com/mcp"
    }
  }
}
```

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-09-19 (score 86, +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.

### 2026-09-17 (score 85, +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.

### 2026-09-15 (score 84, +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.

### 2026-09-12 (score 83, +1)

No change was recorded against any check on this day. Stability & Change Management went from 53 to 57. That category is still filling its 30-day observation window: 16 days of observed history at the previous scan, 17 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-10 (score 82, +1)

No change was recorded against any check on this day. Stability & Change Management went from 47 to 50. That category is still filling its 30-day observation window: 14 days of observed history at the previous scan, 15 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-08 (score 81, +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.

### 2026-09-06 (score 80, +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.

### 2026-09-04 (score 79, +1)

No change was recorded against any check on this day. Stability & Change Management went from 27 to 30. That category is still filling its 30-day observation window: 8 days of observed history at the previous scan, 9 at this one. The score rises as the window fills, whether or not the server changes.

## MCP tools (3)

### `analyse_small_business_opportunities` (~181 tokens)

Analyse small-business opportunities

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.

Input parameters:

- `businessName` (string, required): 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, required): The public HTTP or HTTPS website of the business.

Output parameters:

- `signal` (object)
- `transaction` (object)
- `usage` (object)

### `check_marginglow_signal_access` (~57 tokens)

Check MarginGlow AI Signal access

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.

Output parameters:

- `access` (object)
- `agent` (object)
- `balance` (object)
- `latestPurchase`
- `product` (string)

### `purchase_marginglow_signal` (~93 tokens)

Purchase a MarginGlow AI Signal

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.

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/com-marginglow-signal/www#diagnostics

## Score history

- 2026-09-20: 86
- 2026-09-19: 86
- 2026-09-18: 85
- 2026-09-17: 85
- 2026-09-16: 84
- 2026-09-15: 84
- 2026-09-14: 83
- 2026-09-13: 83
- 2026-09-12: 83
- 2026-09-11: 82
- 2026-09-10: 82
- 2026-09-09: 81
- 2026-09-08: 81
- 2026-09-07: 80
- 2026-09-06: 80
- 2026-09-05: 79
- 2026-09-04: 79
- 2026-09-03: 78
- 2026-09-02: 78
- 2026-09-01: 77
- 2026-08-31: 77
- 2026-08-30: 76
- 2026-08-29: 76
- 2026-08-28: 76
- 2026-08-27: 75
- 2026-08-26: 75

## Common questions

### 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 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 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 20 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

## Links

- Remote endpoint: https://www.marginglow.com/mcp
- Authorisation metadata: https://www.marginglow.com/.well-known/oauth-protected-resource/mcp
- Website: https://www.marginglow.com/signal
- Changelog RSS feed: https://verifymcp.io/servers/com-marginglow-signal/www.xml
- Changelog JSON feed: https://verifymcp.io/servers/com-marginglow-signal/www.json
- HTML version of this page: https://verifymcp.io/servers/com-marginglow-signal/www