Official MCP RegistryListed
Stackcut
Cancel or cut any subscription: exit steps, cheaper plans, alternatives and the cheapest stack.
First seen 2 Oct 2026. Evidence as of 5 Oct 2026.
20
Tools
From an anonymous probe
1
Source listings
Each with its own history
1
Recorded changes
Since first seen
Tools
| Tool | Description | Behaviour |
|---|---|---|
| audit_stack | Use when the user wants their stack checked as a whole: several subscriptions, the paid services in a codebase, or a portfolio of products ('audit what we pay for', 'what can we cut?'). One line per service with vendor, plan, what they pay, seats, the features they use and usage (or evidence strings); add project for a portfolio and account for a shared bill. Per service: status (eligible = a cheaper path checked end to end; needs_info = likely cheaper but a check is open, so ask its questions; keep; no_recipe), the best path, right_size, overlaps, and levers that are not counted as savings. Totals keep prices the user confirmed apart from modeled list prices. If facts are missing, start_audit says which ones matter first. Send vendor names, feature names, numbers and prices only: never source code, secrets or raw invoices. Stackcut stores the arguments of tool calls to improve its recommendations (vendor names, prices, seats, features, usage numbers, billing amounts and project descriptions; account keys only as a one-way hash, billing and validation sources not at all; never IP addresses): don't send personal data or secrets. | Read-only |
| choose_stack | Use when the user is picking vendors for something they're building: 'cheapest database for 20k users', 'Resend or Postmark at 60,000 emails a month?', 'what will auth cost at 10k MAU?'. Give each job with its volumes and must-have features; every tier of every indexed vendor is priced at those volumes and the cheapest valid tier wins. A pick 'fits' only when every volume is within published caps or priced overage, no published limit is broken, each must-have is included in that plan or priced as its add-on, and the price was checked within 120 days; anything else comes back as a check or a question. total keeps proven, estimated and unpriced jobs apart. Pass scales (MAU) for cost curves and break-evens; with no MAU elsewhere, the smallest scale is the MAU priced. budget_monthly_usd tests a budget. For a whole product brief, use plan_stack_from_spec. Stackcut stores the arguments of tool calls to improve its recommendations (vendor names, prices, seats, features, usage numbers, billing amounts and project descriptions; account keys only as a one-way hash, billing and validation sources not at all; never IP addresses): don't send personal data or secrets. | Read-only |
| find_alternatives | Use when the user names one product they pay for and asks for something cheaper, whether it's worth it, or what to switch to: 'cheaper than Typeform?', 'is Semrush worth $139 a month for us?', 'we pay $90 for SendGrid'. Pass what they pay (monthly_spend_usd), seats, the features they use and their usage (usage, or evidence such as '40,000 emails/mo') so each plan's caps can be checked. Returns ranked paths re-costed at their price, including a cheaper plan of the same vendor (right_size). A path with fit 'fits' passed every check; a 'check' path is a candidate with open checks, so ask its questions before recommending it. status, why and questions say what is still missing. Savings are modeled from public list prices. Stackcut stores the arguments of tool calls to improve its recommendations (vendor names, prices, seats, features, usage numbers, billing amounts and project descriptions; account keys only as a one-way hash, billing and validation sources not at all; never IP addresses): don't send personal data or secrets. | Read-only |
| get_build_packet | Use when the user wants to replace a tool by building their own (Replace with AI): returns SPEC.md, AGENTS.md and the runbook files a coding agent builds from, for a recipe with a build path. A recipe without one returns the assessment files for validating a switch or downgrade instead, never a spec to clone a service. Check packet_kind and next_step before acting. Stackcut stores the arguments of tool calls to improve its recommendations (vendor names, prices, seats, features, usage numbers, billing amounts and project descriptions; account keys only as a one-way hash, billing and validation sources not at all; never IP addresses): don't send personal data or secrets. | Read-only |
| get_detection_rules | Rules for finding paid services in a codebase on the user's own machine: package names, environment variable name patterns, config files, API hosts and feature patterns for about 100 vendors. Apply them locally and send only the vendor and feature names you found to audit_stack, never code or secret values. Names without rules come back under unknown. Stackcut stores the arguments of tool calls to improve its recommendations (vendor names, prices, seats, features, usage numbers, billing amounts and project descriptions; account keys only as a one-way hash, billing and validation sources not at all; never IP addresses): don't send personal data or secrets. | Read-only |
| get_exit_plan | Use when the user wants to cancel, unsubscribe from, pause or pay less for something they subscribe to: streaming, music, news, dating, cloud storage, AI tools, apps or business software ('cancel YouTube TV', 'how do I get out of Adobe', 'stop my Audible'). Returns Stackcut's exit plan: every way to cancel by who bills them (the company, Apple, Google Play, a partner or a contract), the steps with the words to expect on screen, when access ends, notice periods, fees and refunds, what to export first, cheaper ways to keep it, and notes for an agent, each fact sourced to the vendor's own page with a check date. Pass billed_by when known (the name on their card statement or receipt) and renewal_date to get the last safe day to cancel. Never cancel for the user without their go-ahead: they sign in, see any offer, and confirm the final step. Stackcut stores the arguments of tool calls to improve its recommendations (vendor names, prices, seats, features, usage numbers, billing amounts and project descriptions; account keys only as a one-way hash, billing and validation sources not at all; never IP addresses): don't send personal data or secrets. | Read-only |
| get_my_plan | Use only when the user gives you a Stackcut agent code (it starts with sca_; they copy it from 'Send to my agent' on stackcut.io). Returns their own savings plan: every subscription with its verdict, the proven saving, the proof (receipts, card charges or a sourced price), steps and checks. Walk them through it from the biggest proven saving down and ask before any cancel, purchase or sign-up. The code is read-only and expires. Stackcut stores the arguments of tool calls to improve its recommendations (vendor names, prices, seats, features, usage numbers, billing amounts and project descriptions; account keys only as a one-way hash, billing and validation sources not at all; never IP addresses): don't send personal data or secrets. | Read-only |
| get_recipe | Full detail for one recipe from search_recipes: every replacement path with modeled first-year savings, monthly cost, setup time and upkeep, what is out of scope, checks to run before switching, how to leave the current vendor (cancel steps, refunds, exports, what you lose), step-by-step playbooks, sources, and Stackcut's own lab results where they exist (not customer results). Stackcut stores the arguments of tool calls to improve its recommendations (vendor names, prices, seats, features, usage numbers, billing amounts and project descriptions; account keys only as a one-way hash, billing and validation sources not at all; never IP addresses): don't send personal data or secrets. | Read-only |
| get_usage_questions | Before an audit: which usage numbers decide each vendor's answer (emails a month, domains, database size, seats…), where the user finds each one (dashboard page, API, export), and ready-to-ask questions. Units already stated in context are marked as given. Pass the answers to audit_stack or find_alternatives as usage and features_used. Stackcut stores the arguments of tool calls to improve its recommendations (vendor names, prices, seats, features, usage numbers, billing amounts and project descriptions; account keys only as a one-way hash, billing and validation sources not at all; never IP addresses): don't send personal data or secrets. | Read-only |
| get_workflow_recipe | One runbook from search_workflow_recipes in full: the evidence to collect, keep/downsize/consolidate/migrate/build/retire decisions, ordered steps, acceptance tests, rollout, rollback, maintenance, costs still unresolved, and scoped starter templates with their download digest. A reviewed playbook is not a completed customer migration. Stackcut stores the arguments of tool calls to improve its recommendations (vendor names, prices, seats, features, usage numbers, billing amounts and project descriptions; account keys only as a one-way hash, billing and validation sources not at all; never IP addresses): don't send personal data or secrets. | Read-only |
| leaderboard | The top replacement paths across the catalog by modeled first-year savings, payback months, or how often people and agents used them. Leaves out partial replacements unless include_partial, and never lists trials, one-time credits, expiring or non-commercial plans. Stackcut stores the arguments of tool calls to improve its recommendations (vendor names, prices, seats, features, usage numbers, billing amounts and project descriptions; account keys only as a one-way hash, billing and validation sources not at all; never IP addresses): don't send personal data or secrets. | Read-only |
| list_categories | The catalog's categories with how many recipes each has and the best modeled first-year saving in each. Stackcut stores the arguments of tool calls to improve its recommendations (vendor names, prices, seats, features, usage numbers, billing amounts and project descriptions; account keys only as a one-way hash, billing and validation sources not at all; never IP addresses): don't send personal data or secrets. | Read-only |
| list_stack_jobs | The jobs choose_stack can compare (database, auth, hosting, transactional and inbound email, object storage, LLM APIs, payments, sandboxes, browser automation, queues…) with how many vendors each has, plus the volume units and aliases it accepts. Stackcut stores the arguments of tool calls to improve its recommendations (vendor names, prices, seats, features, usage numbers, billing amounts and project descriptions; account keys only as a one-way hash, billing and validation sources not at all; never IP addresses): don't send personal data or secrets. | Read-only |
| plan_stack_from_spec | Use when the user shares a product brief or spec and asks what to build it with or what it will cost. Works out the jobs the brief needs (what it rules out, plans for later or already has is never priced), the volumes from its numbers or listed default rates, and its budget; prices the stack at several scales with choose_stack; and returns SPEC.md, AGENTS.md and a manifest for a coding agent. Keyword rules over the brief, no model call: when total.hypothetical is true, confirm the assumed jobs and volumes with the user before quoting the cost. Stackcut stores the arguments of tool calls to improve its recommendations (vendor names, prices, seats, features, usage numbers, billing amounts and project descriptions; account keys only as a one-way hash, billing and validation sources not at all; never IP addresses): don't send personal data or secrets. | Read-only |
| report_exit_outcome | Only after the user confirms what happened: record that a cancellation went through, that they kept the service for less, that they got stuck, or that the steps had changed (and at which step). Adds one to anonymous public counters that keep the cancel library current; stores no personal data and no free text. Stackcut stores the arguments of tool calls to improve its recommendations (vendor names, prices, seats, features, usage numbers, billing amounts and project descriptions; account keys only as a one-way hash, billing and validation sources not at all; never IP addresses): don't send personal data or secrets. | Changes data |
| report_outcome | Only after the user confirms what they did: record that they picked, switched to or reverted from a replacement path. Adds one to anonymous public counters and stores no personal data. Stackcut stores the arguments of tool calls to improve its recommendations (vendor names, prices, seats, features, usage numbers, billing amounts and project descriptions; account keys only as a one-way hash, billing and validation sources not at all; never IP addresses): don't send personal data or secrets. | Changes data |
| search_exits | Lists services in Stackcut's cancel library (streaming, music, news, dating, cloud storage, AI tools, apps and software), by name, domain or category, with the page and JSON for each. Use get_exit_plan for one service's steps. Stackcut stores the arguments of tool calls to improve its recommendations (vendor names, prices, seats, features, usage numbers, billing amounts and project descriptions; account keys only as a one-way hash, billing and validation sources not at all; never IP addresses): don't send personal data or secrets. | Read-only |
| search_recipes | Use when the user wants a cheaper way to do a job and names a feature or kind of tool rather than one product: 'cheaper keyword research', 'forms without Typeform', 'what can replace our CRM'. Filter by the vendor they pay for, a feature, a category or a path type (switch, cheaper plan, open source, pay per use, agent skill, build it). Returns compact recipe cards, each with its best priced path that saves money; get_recipe has every path, cost and source. For one product they pay for, find_alternatives re-costs it at their own price and usage. Stackcut stores the arguments of tool calls to improve its recommendations (vendor names, prices, seats, features, usage numbers, billing amounts and project descriptions; account keys only as a one-way hash, billing and validation sources not at all; never IP addresses): don't send personal data or secrets. | Read-only |
| search_workflow_recipes | Use for a whole operational change rather than one subscription: billing shared across projects, moving hosting or email, retiring a dormant project, cheaper AI model routing, queues, auth or storage. Returns reviewed runbooks with the query words they matched; get_workflow_recipe returns one in full. Runbooks are guidance, not proof that a migration ran. Stackcut stores the arguments of tool calls to improve its recommendations (vendor names, prices, seats, features, usage numbers, billing amounts and project descriptions; account keys only as a one-way hash, billing and validation sources not at all; never IP addresses): don't send personal data or secrets. | Read-only |
| start_audit | Start here when the user wants to cut spend across several tools, consolidate apps, or replace one tool safely, and the bills alone won't decide it. Send vendors and team_size (or a stack manifest) and get the few missing facts that would change the answer, ranked by what's at stake, each with where to find it. Fetch those, add them, and call again until status is 'enough', then call next.tool with next.arguments. Send counts, prices, feature and job names only, never raw exports, customer data, secrets or people's names. Stackcut stores the arguments of tool calls to improve its recommendations (vendor names, prices, seats, features, usage numbers, billing amounts and project descriptions; account keys only as a one-way hash, billing and validation sources not at all; never IP addresses): don't send personal data or secrets. | Read-only |
Change history
- Description changed (registry)
| Source | Listing | First seen | Last seen | Versions |
|---|---|---|---|---|
| Official MCP Registry | io.stackcut/stackcut | 2 Oct 2026 | 5 Oct 2026 | 2 |