# SubKiller Muse connector

From musedirectory.ai, the independent directory of Meta Muse connectors. Not affiliated with Meta.

## SubKiller

Find every subscription you pay for and cancel the ones you do not use.

- Record: https://musedirectory.ai/connector/subkiller
- Category: Finance & Bills
- Developer: SubKiller (https://subkiller.ai)
- Muse status: Waiting for Meta. Sent to Meta for approval. Until then you can add it with a link.
- Health: Working, 397ms, checked 2026-11-07T01:30:53Z
- Endpoint: https://api.subkiller.ai/mcp
- Auth: No account needed; Pricing: free
- Screening: Screened, no issues found (2026-11-05T12:06:37Z)
- Disclosure: Built and operated by the publisher of musedirectory.ai.

Turns subscription receipts in your inbox into one clean list, then gives cancel instructions per merchant with honest phone and in-person fallbacks. Your assistant reads the inbox; the connector never holds your email.

How to connect: Not in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use SubKiller to help me. It is a free service with an MCP server at https://api.subkiller.ai/mcp. It does not need an API key. Ask me before you share anything with it." Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.

Tools:
- start_here: Read only. Use when a person wants to find out what subscriptions they are paying for, cancel a subscription, stop a recurring charge, cut monthly bills, or check that something they cancelled really stopped. Returns how SubKiller works: the recommended order of steps, what each 
- get_inbox_searches: Returns the email searches to run in the person's own inbox (Gmail or Outlook / Microsoft 365) to find subscription receipts, renewal notices, free trials about to convert, and price increases, plus how to tell a real recurring charge from a one-off purchase. You run the searches
- identify_merchants: Takes merchant names, email sender names, sender domains or card statement descriptors (for example 'NETFLIX.COM', 'APPLE.COM/BILL', 'Spotify USA') and returns who each one really is, how it is cancelled, and whether the charge is billed through an app store or payment company. S
- get_cancel_steps: Returns how to cancel one subscription: the steps in plain words, things to watch for (fees, app store billing, data loss, retention offers), what proof to keep, and the company's own help page when that link has been machine-checked. For merchants it does not know, returns the g
- draft_cancel_message: Returns a short, firm cancellation request the person can send from their own email, paste into a support chat, or mail as a signed letter. It asks for cancellation, written confirmation, the date billing stops, and no further charges. It has [BLANKS] that you fill in on your sid
- build_subscription_list: The main tool. Turns the messy set of charges you found in the person's inbox into a clean subscription list: what they are paying for, how often, what each costs per year, price increases, trials about to convert, subscriptions that look already stopped, possible duplicates, and
- save_list: Write. Saves or updates the person's subscription list so it builds up over time: merchant name, amount, cadence, status, last charge date and cancellation date. Returns the list key, a private link to a page showing the list and yearly totals, and which cancelled items still nee
- get_list: Returns the person's saved subscription list with yearly totals, and flags cancelled items that are still billing, waiting to be confirmed, or confirmed stopped. Call this at the start of a return visit, before searching the inbox again.
- new_list_link: Write. Replaces the private link to the person's saved list with a new one. The old link and key stop working immediately and the list itself is unchanged. Use it when the person shared the link by mistake, thinks someone else has it, or just wants a fresh one. Returns the new ke
- delete_list: Sensitive write: cannot be undone. Permanently deletes the person's saved subscription list and everything in it. Use when the person asks to delete their data. Cannot be undone.

Screening checks:
- MCP handshake: pass (Answered in 131ms)
- Domain against threat feeds (Cloudflare security DNS): pass (api.subkiller.ai, subkiller.ai not flagged)
- Published packages against the OSV malicious-package database: n/a (No npm or PyPI package published)
- Hidden instructions or invisible characters in tool text: pass (10 tools read, nothing found)
- Inputs asking for passwords, card numbers or seed phrases: pass (None found)
- Domain and redirects: pass (Domain registered 137 days ago)
- AI review of purpose and tool behavior: pass (No concerns)