zombie-killer

What is zombie-killer?

zombie-killer is a tool that detects recurring charges from bank or card statements, flags forgotten or price-crept subscriptions ("zombies"), and drafts ready-to-send letters for cancellation, renegotiation, or data deletion under GDPR/CCPA. It works as a web app for individuals and as an MCP server for AI agents, with optional pay-per-call via x402.

How to use zombie-killer?

Install the MCP server by adding "zombie-killer": { "command": "npx", "args": ["-y", "subkill-mcp"] } to your mcpServers config. Then call tools like scan_subscriptions (paste raw data), generate_letter (draft one letter), or build_letter_package (full scan + all letters). For HTTP, use POST /mcp or POST /api/scan (free) and POST /api/package (paid). AI agents can also use the x402-gated GET /pro/package route with USDC on Base.

Key features of zombie-killer

• Parses CSV exports or free-form transaction lines.
• Groups charges by ~50 known subscription merchants.
• Classifies cadence (weekly/monthly/quarterly/yearly).
• Scores each charge as ZOMBIE, REVIEW, or ACTIVE.
• Drafts cancellation, renegotiation, and data-erasure letters.
• Processes statements in-memory; no data stored.

Use cases of zombie-killer

• Identify forgotten subscriptions silently draining your bank account.
• Generate a firm cancellation request for a hard-to-cancel service.
• Get a loyalty-discount script to renegotiate a recurring bill.
• Send a GDPR Art. 17 or CCPA §1798.105 data-deletion request.
• Let an AI agent automate subscription review for a user.

FAQ from zombie-killer

Does zombie-killer contact the company or act on my behalf?

No. It only drafts letters; you must send them yourself from your own account.

How is my financial data handled and stored?

Your statement is processed in-memory to detect recurring charges and is not stored. Card numbers are not needed and should not be pasted.

What subscriptions are recognized in the catalog?

An embedded catalog of about 50 high-frequency subscription services with real cancellation and privacy contacts is used for merchant grouping and contact info.

How do AI agents pay for the full letter package?

The /pro/package route uses x402 to automatically pay in USDC on Base – no sign-up or API key required.

Is the web app free for scanning?

Yes. Scanning and verdicts are free; unlocking the full letter package requires a one-time crypto payment (no account or card).