Zambo is the verifiable work layer for AI: one MCP endpoint with tools, continuity, and receipts for tool calls.

How do I connect Zambo to Claude, ChatGPT, Cursor, or Grok?

Add https://zambo.dev/mcp in your AI app's connection settings. No API key is needed to start.

Is there an MCP server with receipts?

Yes. Connect to https://zambo.dev/mcp. Calls that run return a public receipt link.

What is a verifiable receipt?

It lets you check whether the saved output matches its recorded SHA-256 commitment. It does not prove the output is correct.

AER-1 is an open draft for AI execution receipts. Current draft: draft-zambo-aer1-26 at https://datatracker.ietf.org/doc/draft-zambo-aer1/26/.

Do I need an API key?

No. Connect to the hosted MCP endpoint; live tool limits still apply.

Funded agents may pay their own $0.99 Day Pass in USDC on Base through x402, under their configured wallet policy. People can Use the one-time Day Pass checkout.

How much does Zambo cost?

Free to start. Day Pass is $0.99 for 24 hours. Zambo Pass is $29 for 30 days, one payment or $290 for 365 days, one payment. ProvibeCode full audits are included with Zambo Pass, five per month.

Works inClaudeChatGPTCursorGrok

Give your AI hands, memory, and proof.

One connection for every AI you use. Give it tools to do real work, a receipt you can verify for every result, and memory that follows when you switch AIs. Wrap up here; pick up anywhere.

Updatingreceipts issued

Updatingreceipts today

Updatingall-time package downloads

Updatingtotal tool calls

Every number is live and sourced. See sources and breakdown.

The verifiable work layer for AI

zambo.dev/mcp

Copy → paste into your AI's connectors → done. Free, no key, ~10 seconds.

Start free

Everyone gets 20 free calls every day.

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Paid passes lift Zambo’s 20-calls-a-day cap. Same access: Day Pass 24h, Zambo Pass 30d. Tool and provider limits may still apply.

Day Pass $0.99 · 24 hours Zambo Pass $29 · 30 daysOne payment · no repeat charge

Example workflow

Claude

Use zambo to check my site, protect my bot, and find my first customers.

SiteBotCustomers

Proof saved

ChatGPT

Picked up from Claude with zambo

Launch email ready. Here's the proof of every step.

Subject: We launch MondaySite checked, bot protected, 3 likely-fit customers.

Checking receipt…

One link. Any AI. Proof of every step.

Free to try · Unlock everything for 24h: $0.99

One URL. No key.

Pick your AI.

Your bots are busy. Receipt Bot keeps score.

Grok team

Saved receipts · demo roles

3 verifiable receipts

Add Receipt Bot to my Grok team

Every bot's work, filed and checkable.

Hands · Memory · Proof

What your AI can do now.

Hands

Checks your site, protects your bot, finds customers.

Memory

Start in Claude, finish in ChatGPT. Nothing lost.

Proof

Every step gets a receipt you can check.

Hands · Big asks

Big asks, handled at once.

Big ask? Your AI's hands split it up and run it at once.

GOALrequest saved with proof

A1research

A2extract

A3reason

A4compare

A5validate

A6route

A7score

A8challenge

A9summarize

A10audit

RECEIPTcheckable record

Hands: 153 tools · Memory: works across AIs · Proof: verifiable receipts. One URL. See all tools

Zambo Home

Pick up the work that matters.

Parallel work

Big asks: your AI splits the work into parallel steps, each with a verifiable receipt.

Continuity

Start in Claude. Finish in Grok.

Receipts

Done means done. Here's the receipt.

153 Tools

One connection for useful work.

Before / After

Problems it ends.

Swipe a card, then flip it to see the difference.

BEFORE · Proof

Is it really done?

AI says it's done and you can't tell.

BEFORE · Memory

Starting over

Re-explaining everything in a new AI.

BEFORE · Hands

Talk, no action

Your AI can only give advice.

BEFORE · Proof

Lost steps

You can't tell which step went wrong.

BEFORE · Memory

Copy and paste

Moving work between AIs by hand.

BEFORE · Hands

One at a time

Big jobs crawl along step by step.

Check the saved work

Receipts, on an open standard.

Your AI says done. Prove it.

Every result is saved with a receipt anyone can check.

Receipts work everywhere.

AER-1 is an open IETF draft for portable AI work receipts.

Know what a match means.

The saved result is unchanged. That does not prove the answer is right.

AER-1 draft -26 Interop and verifier suite Check a receipt

New: Handover

Hand over the work, with the receipts.

Tell your AI “Use zambo to hand this over to my client.” Your client gets one page, checks every step in their browser, then accepts or flags it.

See how Handover works

Start free. Upgrade when it helps.

Free to try.

Unlock everything for 24 hours: $0.99

or $29 for 30 days, one payment

Ready when you are

Give your AI one connection.

https://zambo.dev/mcp

No API key. Free to try.