Direct answer

AI Tools Without a Subscription

You can use Zambo AI tools without a subscription. A Day Pass costs $0.99 once and covers 24 hours. A Zambo Pass costs $29 once for 30 days, or $290 once for 365 days. Each is a single payment with no auto-renew: when the time runs out, access stops, and nothing is charged again unless you buy again. Humans pay by PayPal or card through PayPal; agents pay in USDC on Base. This page lays out what is included, how the two passes compare, and how one payment stacks up against a pile of monthly tools.

Start here: get a Day Pass for $0.99, or run the live demo free first and see a real call with its receipt, no signup.

Updated October 20, 2026.

What is included

Zambo is the verifiable work layer for AI, and a pass opens the whole of it, not a tier of it:

153 tools behind one MCP endpoint, https://zambo.dev/mcp: 35 on the default surface, the full 153 with ?full=true on the URL. Research, extraction like pdf_extract, audits, prices, and the working tools a session actually calls.
Memory that carries across sessions and across AIs. A job started in Claude can continue in Cursor, ChatGPT, Gemini, or Grok, with the state intact, instead of starting from a blank chat.
A verifiable receipt for every call. Each call is recorded as it runs, and anyone can check a receipt free at zambo.dev/verify/. The receipts follow AER-1, the agent execution receipt standard.
Handover. Pass a job to a client or teammate as one record with steps, outputs, and open items, at zambo.dev/handover.
The provibe audit included. The security audit for AI-built apps, covered on the audit a vibe-coded app page, at no separate price.

There are no per-tool add-ons and no feature gates inside the pass. The only difference between passes is how long they run.

Day Pass vs Zambo Pass

Day Pass: $0.99, once, 24 hours

Built for a single job: the audit before a launch, the research sprint, the deadline tonight. Buy it, do the work inside the day, done. Nothing follows you afterwards, no renewal, no retention flow, no cancellation screen, because there is nothing to cancel.

Zambo Pass: $29 for 30 days, $290 for 365 days, once each

For people who reach for the tools every week. The 365-day pass is priced at ten times the 30-day pass, so two of the twelve months are effectively free compared with buying month by month. Holders of $ZAMBO pay $19 for 30 days. Same shape as the Day Pass at every length: one payment, a stated amount of time, then it ends.

Full plan details live at zambo.dev/pricing/, and your day of work is reviewable any time at zambo.dev/today.

No auto-renew, stated plainly

Most tool pricing is built on the renewal you forget. This is built the other way. You pay once, the pass runs for exactly the time it says, and then access stops. There is no card kept on a recurring plan, no renewal date quietly approaching, no discount offered at the cancellation screen because there is no cancellation screen. If the tools earned another month, you will know it, and buying again takes the same minute the first purchase did. If they did not earn it, the default outcome is that you stop paying, which is how buying things used to work.

Compared with stacking monthly tools

The common setup is a stack: one subscription for research, one for documents, one for an audit tool, one for memory, each renewing on its own date, each with its own login, most of them idle most months. The arithmetic is not just the total. It is four renewal dates you do not track, four cancellation flows designed to slow you down, and a monthly charge that continues through the months you were too busy to use any of it. The pass model compresses the stack into one endpoint and one decision: is this worth $0.99 today, $29 this month, $290 this year. When the answer is no, the spending stops by itself. That is the honest comparison: not cheaper in every case, but bounded in every case, and the bound is the point.

Honest limits

Three edges, stated plainly. First, a pass is time, not ownership: when the time runs out, the metered tools stop until you buy again, and a job that needs the tools next month needs a pass next month. Second, no auto-renew cuts both ways: nobody will bill you, and nobody will remind the tools to stay on, so a long-running agent job should be given a pass long enough to cover it. Third, the free tier exists and covers light use, with per-tool daily limits that vary by tool; a pass is for real work sessions, not for a single experimental call, which the free live demo already covers.

Frequently asked questions

Can I use AI tools without a subscription, for one payment?

Yes. Zambo sells time, not a subscription. A Day Pass costs $0.99 once and covers 24 hours. A Zambo Pass costs $29 once for 30 days, or $290 once for 365 days. Each is a single payment with no auto-renew: when the time runs out, access stops, and nothing is charged again unless you choose to buy again. During the pass, you get the Zambo tools behind one MCP endpoint, https://zambo.dev/mcp, with memory and a verifiable receipt for every call.

What is included with a Zambo pass?

All of Zambo: 153 tools behind one MCP endpoint, 35 of them on the default surface and the full set with ?full=true, covering research, extraction, audits, memory, and handover. Memory carries work across sessions and across AIs, so a job started in Claude can continue in Cursor or ChatGPT. Every call produces a verifiable receipt that anyone can check free at https://zambo.dev/verify/. The provibe audit for AI-built apps is included at no separate price. One pass covers the whole set; there are no per-tool add-ons to buy.

What is the difference between the Day Pass and the Zambo Pass?

Time, and nothing else hidden. The Day Pass is $0.99 for 24 hours: the right size for one job, one audit, one deadline, or a first real test of the tools on your own work. The Zambo Pass is $29 for 30 days, or $290 for 365 days, for people who use the tools week after week; the year works out to ten times the 30-day price, so two months of the year are effectively free compared with buying 30 days at a time. Holders of $ZAMBO pay $19 for 30 days. Both passes are one payment each, with no auto-renew.

Does the Zambo Pass auto-renew?

No. There is no auto-renew, on either pass, at either length. You pay once, the pass runs for its stated time, and then it ends. Nothing is stored as a recurring charge and nothing bills you again. If you want more time after a pass ends, you buy another pass, as a fresh decision, at https://zambo.dev/day-pass/ for the Day Pass or through the pricing page for the longer passes. The absence of renewal is the product, not a setting you have to find and switch off.

How do I pay, and how do agents pay?

Humans pay by PayPal, or by card through PayPal, at https://zambo.dev/day-pass/ for a Day Pass; longer passes are on the pricing page at https://zambo.dev/pricing/. Agents pay for themselves in USDC on Base through x402, the payment step built into the endpoint, so an agent with funds can buy its own access mid-job without a human reaching for a card. Either way the payment is a single transaction for a stated amount of time, with no recurring billing attached to it.