# Store Canary (remote · mcp.storecanary.app)

Free read-only WooCommerce checks: store, SSL, exposure, SEO, speed, products, policies + 3 prompts

- Trust score: 72/100 (medium)
- Change this week: +5
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-05

## Components

- remote · `mcp.storecanary.app`: 72/100 (this document), [markdown](https://verifymcp.io/servers/erikras-store-canary/mcp.md), [page](https://verifymcp.io/servers/erikras-store-canary/mcp)

## Channel facts

- Endpoint: `https://mcp.storecanary.app/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `1.1.0`

## 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 2026-11-05.

- **Endpoint Security**: 63/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - No authorisation is required to call this server. Nothing on it is marked destructive, but we can't show that an anonymous caller can only read: full credit needs the server to list at least one tool and every tool to be verifiably read-only. We use a best-effort check of tool names and descriptions to tell read-only tools from tools that change things, so some genuinely read-only tools may not get full credit. Names that start with a read verb (get, list, read, search and similar) and accurate readOnlyHint annotations help. Meet that to earn full credit, or require authorisation.
  - HTTPS enforcement could not be verified: the plaintext port answered with HTTP 405, which proves neither a plaintext path nor enforcement.
  - HSTS check failed: the Strict-Transport-Security header is absent.
  - 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**: 84/100
  - 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 1194 tokens (~149/item across 8 items; 8 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 23/100
  - Stability observed for 7 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 (100% 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 8 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 9 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 Store Canary MCP server?

Store Canary is a hosted endpoint at https://mcp.storecanary.app/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 erikras-store-canary 'https://mcp.storecanary.app/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "erikras-store-canary": {
      "url": "https://mcp.storecanary.app/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "erikras-store-canary": {
      "type": "http",
      "url": "https://mcp.storecanary.app/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.erikras-store-canary]
url = "https://mcp.storecanary.app/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "erikras-store-canary": {
      "type": "remote",
      "url": "https://mcp.storecanary.app/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add erikras-store-canary --url 'https://mcp.storecanary.app/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  erikras-store-canary:
    url: "https://mcp.storecanary.app/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "erikras-store-canary": {
      "Transport": "http",
      "Url": "https://mcp.storecanary.app/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add erikras-store-canary -t streamable-http -u 'https://mcp.storecanary.app/mcp'
```

### Other

```json
{
  "mcpServers": {
    "erikras-store-canary": {
      "type": "http",
      "url": "https://mcp.storecanary.app/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.

### 2026-11-05 (score 72, +1)

No change was recorded against any check on this day. Stability & Change Management went from 20 to 23. That category is still filling its 30-day observation window: 6 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.

### 2026-11-03 (score 71, +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.

### 2026-11-01 (score 70, 0)

- [security] Tool “check_exposure” rewrote its description, which is the text the model reads
- [security] Tool “check_policies” rewrote its description, which is the text the model reads
- [security] Tool “check_products” rewrote its description, which is the text the model reads
- [security] Tool “check_seo_basics” rewrote its description, which is the text the model reads
- [security] Tool “check_speed” rewrote its description, which is the text the model reads
- [security] Tool “check_ssl” rewrote its description, which is the text the model reads
- [security] Tool “check_store” rewrote its description, which is the text the model reads
- [functional regression] Schema quality: pass → fail
- [cosmetic] “check_exposure” reworded the description of “url”
- [cosmetic] “check_policies” reworded the description of “url”
- [cosmetic] “check_products” reworded the description of “url”
- [cosmetic] “check_seo_basics” reworded the description of “url”
- [cosmetic] “check_speed” reworded the description of “url”
- [cosmetic] “check_ssl” reworded the description of “url”
- [cosmetic] “check_store” reworded the description of “url”

### 2026-10-31 (score 70, +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.

### 2026-10-30 (score 69, +2)

- [security] The server rewrote its instructions, which are the text every model session reads
- [functional improvement] Schema quality: 155 → 109
- [functional improvement] Stability: unverified → 0.03
- [functional] The server now declares the “prompts” capability
- [functional] First check of Schema quality: 100
- [functional] New prompt “black_friday_audit”
- [functional] New prompt “checkout_check”
- [functional] New prompt “explain_finding”
- [functional] New tool “check_exposure”
- [functional] New tool “check_policies”
- [functional] New tool “check_products”
- [functional] New tool “check_seo_basics”
- [functional] New tool “check_speed”
- [functional] New tool “check_ssl”
- [functional] New tool “explain_finding”

### 2026-10-29 (score 67)

First indexed and scored.

## MCP tools (8)

### `check_store` (~150 tokens)

Check a WooCommerce store

Check a public WooCommerce store from the outside: is it reachable, is HTTPS valid and are redirects sane, is WooCommerce detected, do /cart/ and /checkout/ load, and are payment markers visible on checkout. Read-only: GET requests only, never adds to cart, logs in or submits forms. Returns pass/warn/fail findings plus a link to the full audit. Pass a bare hostname or URL; paths are ignored and the host's homepage is checked.

Input parameters:

- `url` (string, required): The store's public address, for example https://example.com. A bare hostname (example.com) is fine. Any path, query or fragment is ignored: the homepage of the host is checked.

Output parameters:

- `auditUrl` (string): Full Store Canary audit (plain external link).
- `checkedAt` (string)
- `findings` (array)
- `liteUrl` (string): Store Canary Lite on WordPress.org (free).
- `overall` (string|null)
- `proTrialUrl` (string): Store Canary Pro 30-day free trial.
- `reportUrl` (string): Shareable read-only report page. The result is encoded in the link; nothing is stored.
- `status` (string): checked = findings below; otherwise no store request was made.
- `summary` (string)
- `url` (string|null): Normalized store origin that was checked.

### `check_ssl` (~154 tokens)

Check a store's HTTPS setup

Check that a store's HTTPS certificate is accepted, http:// permanently redirects to https://, the redirect chain is short and stays on HTTPS, and an HSTS header is set. The exact certificate expiry date isn't visible to an outside fetch. Read-only: one run of GET requests only; never logs in, adds to cart or submits forms. Nothing is monitored or saved; ongoing checks are Store Canary Pro. A bare hostname is fine; URL paths are ignored and the host's homepage is checked.

Input parameters:

- `url` (string, required): The store's public address, for example https://example.com. A bare hostname (example.com) is fine. Any path, query or fragment is ignored: the homepage of the host is checked.

Output parameters:

- `auditUrl` (string): Full Store Canary audit (plain external link).
- `checkedAt` (string)
- `findings` (array)
- `liteUrl` (string): Store Canary Lite on WordPress.org (free).
- `overall` (string|null)
- `proTrialUrl` (string): Store Canary Pro 30-day free trial.
- `reportUrl` (string): Shareable read-only report page. The result is encoded in the link; nothing is stored.
- `status` (string): checked = findings below; otherwise no store request was made.
- `summary` (string)
- `url` (string|null): Normalized store origin that was checked.

### `check_exposure` (~161 tokens)

Check what a store exposes publicly

Flag WordPress, WooCommerce, plugin and PHP versions a store shows publicly (generator tags, asset ?ver= values, X-Powered-By), a public /readme.html and a readable /wp-content/debug.log. Log contents are never returned or kept. Read-only: one run of GET requests only; never logs in, adds to cart or submits forms. Nothing is monitored or saved; ongoing checks are Store Canary Pro. A bare hostname is fine; URL paths are ignored and the host's homepage is checked.

Input parameters:

- `url` (string, required): The store's public address, for example https://example.com. A bare hostname (example.com) is fine. Any path, query or fragment is ignored: the homepage of the host is checked.

Output parameters:

- `auditUrl` (string): Full Store Canary audit (plain external link).
- `checkedAt` (string)
- `findings` (array)
- `liteUrl` (string): Store Canary Lite on WordPress.org (free).
- `overall` (string|null)
- `proTrialUrl` (string): Store Canary Pro 30-day free trial.
- `reportUrl` (string): Shareable read-only report page. The result is encoded in the link; nothing is stored.
- `status` (string): checked = findings below; otherwise no store request was made.
- `summary` (string)
- `url` (string|null): Normalized store origin that was checked.

### `check_seo_basics` (~142 tokens)

Check a store's SEO basics

Check a store's robots.txt (and whether it blocks the whole site), its XML sitemap, the homepage title and meta description, and noindex on the homepage. Read-only: one run of GET requests only; never logs in, adds to cart or submits forms. Nothing is monitored or saved; ongoing checks are Store Canary Pro. A bare hostname is fine; URL paths are ignored and the host's homepage is checked.

Input parameters:

- `url` (string, required): The store's public address, for example https://example.com. A bare hostname (example.com) is fine. Any path, query or fragment is ignored: the homepage of the host is checked.

Output parameters:

- `auditUrl` (string): Full Store Canary audit (plain external link).
- `checkedAt` (string)
- `findings` (array)
- `liteUrl` (string): Store Canary Lite on WordPress.org (free).
- `overall` (string|null)
- `proTrialUrl` (string): Store Canary Pro 30-day free trial.
- `reportUrl` (string): Shareable read-only report page. The result is encoded in the link; nothing is stored.
- `status` (string): checked = findings below; otherwise no store request was made.
- `summary` (string)
- `url` (string|null): Normalized store origin that was checked.

### `check_speed` (~141 tokens)

Time a store's key pages

Time one download each of a store's homepage, one product page and the cart from Cloudflare's network. One sample per page, not a lab test or an average. Read-only: one run of GET requests only; never logs in, adds to cart or submits forms. Nothing is monitored or saved; ongoing checks are Store Canary Pro. A bare hostname is fine; URL paths are ignored and the host's homepage is checked.

Input parameters:

- `url` (string, required): The store's public address, for example https://example.com. A bare hostname (example.com) is fine. Any path, query or fragment is ignored: the homepage of the host is checked.

Output parameters:

- `auditUrl` (string): Full Store Canary audit (plain external link).
- `checkedAt` (string)
- `findings` (array)
- `liteUrl` (string): Store Canary Lite on WordPress.org (free).
- `overall` (string|null)
- `proTrialUrl` (string): Store Canary Pro 30-day free trial.
- `reportUrl` (string): Shareable read-only report page. The result is encoded in the link; nothing is stored.
- `status` (string): checked = findings below; otherwise no store request was made.
- `summary` (string)
- `url` (string|null): Normalized store origin that was checked.

### `check_products` (~133 tokens)

Sample a store's products

Read up to 10 published products from the public WooCommerce Store API and flag missing prices, missing images and out-of-stock items. Read-only: one run of GET requests only; never logs in, adds to cart or submits forms. Nothing is monitored or saved; ongoing checks are Store Canary Pro. A bare hostname is fine; URL paths are ignored and the host's homepage is checked.

Input parameters:

- `url` (string, required): The store's public address, for example https://example.com. A bare hostname (example.com) is fine. Any path, query or fragment is ignored: the homepage of the host is checked.

Output parameters:

- `auditUrl` (string): Full Store Canary audit (plain external link).
- `checkedAt` (string)
- `findings` (array)
- `liteUrl` (string): Store Canary Lite on WordPress.org (free).
- `overall` (string|null)
- `proTrialUrl` (string): Store Canary Pro 30-day free trial.
- `reportUrl` (string): Shareable read-only report page. The result is encoded in the link; nothing is stored.
- `status` (string): checked = findings below; otherwise no store request was made.
- `summary` (string)
- `url` (string|null): Normalized store origin that was checked.

### `check_policies` (~135 tokens)

Check a store's policy pages

Check that the homepage links to privacy, terms, shipping and returns/refunds pages, and that each linked page on the same site loads. Read-only: one run of GET requests only; never logs in, adds to cart or submits forms. Nothing is monitored or saved; ongoing checks are Store Canary Pro. A bare hostname is fine; URL paths are ignored and the host's homepage is checked.

Input parameters:

- `url` (string, required): The store's public address, for example https://example.com. A bare hostname (example.com) is fine. Any path, query or fragment is ignored: the homepage of the host is checked.

Output parameters:

- `auditUrl` (string): Full Store Canary audit (plain external link).
- `checkedAt` (string)
- `findings` (array)
- `liteUrl` (string): Store Canary Lite on WordPress.org (free).
- `overall` (string|null)
- `proTrialUrl` (string): Store Canary Pro 30-day free trial.
- `reportUrl` (string): Shareable read-only report page. The result is encoded in the link; nothing is stored.
- `status` (string): checked = findings below; otherwise no store request was made.
- `summary` (string)
- `url` (string|null): Normalized store origin that was checked.

### `explain_finding` (~67 tokens)

Explain a Store Canary finding

Explain a finding code returned by any Store Canary tool (for example ssl_hsts or exposure_debug_log) in plain words, with a suggested fix. Makes no network requests.

Input parameters:

- `code` (string, required): A finding id from a Store Canary result, for example checkout or seo_noindex.

Output parameters:

- `auditUrl` (string): Full Store Canary audit (plain external link).
- `code` (string)
- `fix` (string|null)
- `liteUrl` (string): Store Canary Lite on WordPress.org (free).
- `meaning` (string|null)
- `proTrialUrl` (string): Store Canary Pro 30-day free trial.
- `status` (string)
- `summary` (string)
- `title` (string|null)
- `tool` (string|null): The tool that returns this finding.

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/erikras-store-canary/mcp#diagnostics

## Score history

- 2026-11-05: 72
- 2026-11-04: 71
- 2026-11-03: 71
- 2026-11-02: 70
- 2026-11-01: 70
- 2026-10-31: 70
- 2026-10-30: 69
- 2026-10-29: 67

## Common questions

### What is the Store Canary MCP server?

Store Canary is an MCP server listed in the public MCP registry as io.github.erikras/store-canary. Free read-only WooCommerce checks: store, SSL, exposure, SEO, speed, products, policies + 3 prompts. This page covers its hosted endpoint (https://mcp.storecanary.app/mcp).

### Is the Store Canary MCP server safe to use?

Store Canary scores 72 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 Store Canary MCP server expose?

Store Canary exposes 8 tools: check_store, check_ssl, check_exposure, check_seo_basics, check_speed, and 3 more. Their descriptions and schemas cost roughly 1,083 tokens of context every time the server is loaded.

### Does the Store Canary MCP server require authentication?

No. We connected to Store Canary without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the Store Canary MCP server still maintained?

Store Canary 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.

### What did VerifyMCP test on the Store Canary MCP server?

VerifyMCP ran 12 checks on Store Canary, covering TLS certificate, Authorization, HSTS header, DNSSEC and 8 more. One item could not be completed, a gap on our side rather than a finding about Store Canary: HTTPS. Supply Chain Security and Provenance & Transparency do not apply to a hosted endpoint, so they were not tested. The score does not measure everything, and the scoring documentation lists what it leaves out.

## Links

- Remote endpoint: https://mcp.storecanary.app/mcp
- Repository: https://github.com/erikras/store-canary-mcp
- Website: https://storecanary.app/mcp
- Changelog RSS feed: https://verifymcp.io/servers/erikras-store-canary/mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/erikras-store-canary/mcp/changelog.json
- Trust report (JSON): https://verifymcp.io/servers/erikras-store-canary/mcp.json
- HTML version of this page: https://verifymcp.io/servers/erikras-store-canary/mcp