Cancel My Sub
REMOTE · GOODTURN-MCP.PAGES.DEV · SCANNED SEP 28
How to cancel US and UK subscriptions, the last safe day to cancel, and what a card charge is.
Available components
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 Security74
- 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
- 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 Usability69
- AI-judged instruction clarity (excellent).Pass
- Context-footprint check failed: tool/resource definitions use about 778 tokens (~194/item across 4 items; 4 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 Management0
- Stability not yet verified: not enough scan history yet (needs a 30-day window).Unverified
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; "identify_charge" implies "charge" and declares readOnlyHint instead, contradicting what its own name says it does. See how to fix → Fail
- 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
Unverified: 1 category
A category scored 0 because we could not verify it: authentication we do not have, an unreachable endpoint, or not enough scan history. We only credit what we can confirm.
How do I install the Cancel My Sub MCP server?
Cancel My Sub is a hosted endpoint at https://goodturn-mcp.pages.dev/cancelmysub/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 · goodturn-mcp.pages.dev
claude mcp add --transport http goodturnstudio-cancelmysub 'https://goodturn-mcp.pages.dev/cancelmysub/mcp'
{
"mcpServers": {
"goodturnstudio-cancelmysub": {
"url": "https://goodturn-mcp.pages.dev/cancelmysub/mcp"
}
}
} {
"servers": {
"goodturnstudio-cancelmysub": {
"type": "http",
"url": "https://goodturn-mcp.pages.dev/cancelmysub/mcp"
}
}
} [mcp_servers.goodturnstudio-cancelmysub] url = "https://goodturn-mcp.pages.dev/cancelmysub/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"goodturnstudio-cancelmysub": {
"type": "remote",
"url": "https://goodturn-mcp.pages.dev/cancelmysub/mcp",
"enabled": true
}
}
} openclaw mcp add goodturnstudio-cancelmysub --url 'https://goodturn-mcp.pages.dev/cancelmysub/mcp' --transport streamable-http
mcp_servers:
goodturnstudio-cancelmysub:
url: "https://goodturn-mcp.pages.dev/cancelmysub/mcp" {
"McpServers": {
"goodturnstudio-cancelmysub": {
"Transport": "http",
"Url": "https://goodturn-mcp.pages.dev/cancelmysub/mcp"
}
}
} assistant mcp add goodturnstudio-cancelmysub -t streamable-http -u 'https://goodturn-mcp.pages.dev/cancelmysub/mcp'
{
"mcpServers": {
"goodturnstudio-cancelmysub": {
"type": "http",
"url": "https://goodturn-mcp.pages.dev/cancelmysub/mcp"
}
}
} The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.
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 69
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 28 Sept 2026 · Probed https://goodturn-mcp.pages.dev/cancelmysub/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=goodturn-mcp.pages.dev | CN=YE1,O=Let's Encrypt,C=US | 27 Sept 2026 | 26 Dec 2026 | ECDSA 256 | ECDSA-SHA384 | 590c8ade87714dff31f31ce636eafc7da48 |
| SANs: *.goodturn-mcp.pages.dev, goodturn-mcp.pages.dev | ||||||
| CN=YE1,O=Let's Encrypt,C=US (CA) | CN=Root YE,O=ISRG,C=US | 3 Sept 2025 | 2 Sept 2028 | ECDSA 384 | ECDSA-SHA384 | 5ddd70dd31f801c85c186a7a04b80afe |
| CN=Root YE,O=ISRG,C=US (CA) | CN=ISRG Root X2,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | ECDSA-SHA384 | 872165fc34b6e5fba8add5b3705fb53a |
| CN=ISRG Root X2,O=Internet Security Research Group,C=US (CA) | CN=ISRG Root X1,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | SHA256-RSA | 6c8f1dc727c7117f7baf853ac980f9cd |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of goodturn-mcp.pages.dev. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| dev. | present | 60074 | 8 | Verified |
| pages.dev. | 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://goodturn-mcp.pages.dev/cancelmysub/mcp | Verified | 200 | |
| http (plaintext) | http://goodturn-mcp.pages.dev/cancelmysub/mcp | HTTPS enforced | 301 | https://goodturn-mcp.pages.dev/cancelmysub/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 →
get_cancel_reminder Calendar reminder for the last safe day to cancel ~160
Calendar reminder for the last safe day to cancel. Returns a calendar file (.ics) with an all-day event on the cancel-by day, the steps and the official link, with alerts at 9am the day before and 9am on the day. Nothing is stored. /v1/cancel gives this link as add_to_calendar whenever renews_on is given and the day hasn't passed
| Name | Type | Req | Description |
|---|---|---|---|
| country | string | – | Two-letter country code. GB (or UK) gives UK pages, UK notice rules and uk_rules; defaults to the caller's country, else US. |
| renews_on | string | yes | Next renewal or billing date, YYYY-MM-DD. |
| service | string | yes | The subscription, as for getCancelSteps. |
No output schema declared.
No examples provided.
get_cancel_steps How to cancel one subscription ~222
How to cancel one subscription. Use for "how do I cancel Netflix?", "cancel my Planet Fitness membership", "how do I leave Sky?", "cancel my PureGym", "what's the cheapest way to keep Spotify?", "stop my Audible". Returns the official page, steps, catches and a cheaper option. UK answers add region ("UK") and uk_rules; a US-only service asked about from the UK has region "US only".
| Name | Type | Req | Description |
|---|---|---|---|
| country | string | – | Two-letter country code. GB (or UK) gives UK pages, UK notice rules and uk_rules; defaults to the caller's country, else US. |
| renews_on | string | – | Next renewal or billing date (or next delivery for meal kits), YYYY-MM-DD. Adds cancel_by: the last safe day to cancel using the service's own notice rule, or a day early where it has none, and add_t… |
| service | string | yes | The subscription's name in everyday words, up to 80 characters. |
No output schema declared.
No examples provided.
identify_charge Which subscription is this charge? ~126
Which subscription is this charge?. Use for "what is this APPLE.COM/BILL charge?", "I see AMZN Digital on my statement", "what is DD *DOORDASH DASHPASS?". Returns the likely service, or for Apple, Amazon, Google and Microsoft the few it could be and where to check, or match: purchase when it looks like a one-off order (marketplace, a ride, a restaurant through a delivery app). Then call getCancelSteps
| Name | Type | Req | Description |
|---|---|---|---|
| text | string | yes | The charge as it appears on the statement, up to 120 characters. |
No output schema declared.
No examples provided.
list_services Every subscription Cancel My Sub covers ~126
Every subscription Cancel My Sub covers. Use for "which subscriptions can you help me cancel?" or "what gyms do you know?". Also returns the current status of the FTC click-to-cancel rule and the UK rules (uk_rules)
| Name | Type | Req | Description |
|---|---|---|---|
| category | string | – | streaming, music, membership, gym, news, meal kit, software, app store, dating, wellness, home security, phone and internet, tv and broadband. |
| country | string | – | Two-letter country code. GB (or UK) leaves out US-only services; defaults to the caller's country, else US. |
No output schema declared.
No examples provided.
What is the Cancel My Sub MCP server?
Cancel My Sub is an MCP server listed in the public MCP registry as io.github.GoodTurnStudio/cancelmysub. How to cancel US and UK subscriptions, the last safe day to cancel, and what a card charge is. This page covers its hosted endpoint (https://goodturn-mcp.pages.dev/cancelmysub/mcp).
Is the Cancel My Sub MCP server safe to use?
Cancel My Sub scores 69 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 Cancel My Sub MCP server expose?
Cancel My Sub exposes 4 tools: get_cancel_steps, identify_charge, get_cancel_reminder, list_services. Their descriptions and schemas cost roughly 634 tokens of context every time the server is loaded.
Does the Cancel My Sub MCP server require authentication?
No. We connected to Cancel My Sub without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the Cancel My Sub MCP server still maintained?
Cancel My Sub is still listed as active in the MCP registry. We last reached this channel on 28 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.