How to use MiniToolkit
Tiny AI tools that just work. Pay cents per run. No subscription. Here's everything you need.
What MiniToolkit is
MiniToolkit is a marketplace of single-purpose AI tools. Every tool is one form, one prompt, one result — no chat, no setup, no fiddling. Anyone can publish a tool. You pay a few cents per run instead of $20/month for a chat assistant you might not use.
The pitch is simple: when you have a recurring task — apologize for a missed deadline, write a tight resume bullet, summarize a meeting — a purpose-built tool produces a better result faster than rephrasing the same thing into ChatGPT every time.
Getting started
- Visit the marketplace and pick any tool.
- Try it — the first 20 runs are on us. Click the form, hit Run, see real output.
- To save your work and balance, sign in: hit Sign in, type your email, click the link we send.
- You'll get 20 free credits the first time you sign in. That's enough for ~10 tool runs at average pricing.
How credits work
Each tool tells you up front how many credits a run costs. Most tools are 1–3 credits. Heavier tools that produce long-form output (like Customer Interview Synthesizer) are 4–5.
Top up
Buy credits at /me/buy in three pack sizes:
- Starter — $5 → 50 credits ($0.10/credit)
- Pro — $20 → 250 credits ($0.08/credit, 25% bonus)
- Power — $50 → 750 credits ($0.067/credit, 50% bonus)
Credits never expire. Your balance shows in the top-right of every page.
Refunds
If a tool fails because the model errors or the form data is invalid, your credits are refunded automatically — you'll see a `refund` line in your activity log. If you ever feel charged unfairly, email support@minitoolkits.com.
Free runs
Tool authors can choose to sponsor their tool's runs on third-party sites — meaning the visitor doesn't pay, the author does. So you may run into tools embedded on blogs that are free for you.
Your dock
Pin tools you use often to your dock. Hit the 📍 Pin button on any tool's detail page or its card on the marketplace. Pinned tools show up first in your dock, in the browser extension, and in the Slack tool picker.
The dock is your home base — bookmark /d instead of memorizing tool URLs.
Use tools anywhere
The website is one surface. There are four more:
Slack
Install the MiniToolkit Slack app once per workspace. Then type /mtk in any channel to pick a tool, or /mtk <tool> <input> to run inline. Result is DM'd to you.
Browser extension
Highlight any text on any webpage → right-click → MiniToolkit → pick a pinned tool → output is copied to your clipboard. Get it from the docs (currently developer install).
Inside Claude / Cursor / agents (MCP)
Mint an API key at /me/api and add MiniToolkit as an MCP server in your Claude Desktop or Cursor config. Your tools become callable from those agents. Setup details.
Embedded on websites
Creators can drop their tools into blogs, Substacks, and product landing pages as a Web Component (<mtk-tool>). When a tool is sponsored by its author, you can use it without an account.
Privacy
Your inputs go to the AI model and back. Nothing is stored long-term, nothing is used for training. We log run metadata (which tool, how many tokens) for billing. We do not log the input or output text.
For sensitive tasks (medical, legal, internal docs), use the same judgment you'd use with any AI tool: don't paste customer PII or trade secrets unless you've reviewed our privacy practices.
Become a creator
Anyone can publish a tool. The flow is built for non-engineers:
- Go to /me/new.
- Describe your tool in one sentence: "A tool that turns my meeting notes into a Slack-ready standup post."
- We generate a complete tool — input fields, system prompt, pricing — using Sonnet 4.6.
- Review and tweak in the editor at
/me/tools/<id>/edit. - Hit Publish. Your tool appears on the marketplace.
You earn 70% of every run on your tool by other users. Stripe Connect handles payouts. See the creator docs for the full guide.
FAQ
Why pay-per-run instead of a subscription?
Most people use AI tools sporadically. A $0.20 run is a no-brainer; $20/mo for occasional use isn't. We charge actual usage, not anticipated usage.
Which AI model does MiniToolkit use?
Claude Haiku 4.5 by default — fast, cheap, smart enough for focused single-shot tasks. Some heavy tools use Sonnet when needed. Tool authors can choose.
Is there a mobile app?
Not yet. The website works fine on mobile. A native app is on the roadmap.
What if I find a tool that produces bad output?
Run it once and let us know — we'll work with the creator to tighten the prompt, or remove the tool if it's broken. Your run that produced bad output gets refunded.
How do I contact you?
Email support@minitoolkits.com. We answer.
Building tools? Read the developer docs.
Tool JSON schema, the API, MCP, embed widget, Slack integration, payouts.
Open developer docs →