Colosseum · due 12 Oct 2026

Submission kit

Colosseum judges startups, not demos. Use this page as the copy deck for the Arena form, the 3-minute pitch, and the technical walkthrough.

One-liner

Mandate issues policy-bound spend authorizations so AI agents can pay APIs on Tempo without holding the company treasury.

Pitch video (2:45)

1. 0:00 Team — who has paid an API bill or run contractor payouts.
2. 0:20 Problem — agents will spend; finance will not pre-fund fifty wallets.
3. 0:40 Product — mandates, fail-closed allowlists, MPP receipts.
4. 1:10 Uncut console demo: 402 → MerchantNotAllowed → allowlist → 200 → Shadow LLM revert.
5. 2:10 Business — 0.8% of volume + $99/seat. Customer: any company deploying agents.
6. 2:35 Why Tempo — stablecoin gas, payment lanes, MPP with Stripe, 0.6s finality.

Judging map

• Functionality. Public URL. Walkthrough button. Typed reverts. CSV ledger.
• Impact. Corporate API + contractor spend is a real budget line. Agents make it continuous.
• Novelty. Not an x402 wrapper — the missing control plane. Flovia (Frontier) was analytics; this is authorization + settlement.
• UX. Finance never sees a seed phrase. Gas is USD. Failure is visible.
• Open-source. MandateBook.sol, Foundry tests, 10-line SDK, isomorphic VM.
• Business. SaaS + take rate. No token required to charge.

Repo layout

contracts/     MandateBook.sol + Foundry tests
sdk/           ABI fragments, Tempo constants
src/lib/tempo  Isomorphic VM (same errors as Solidity)
src/routes     Console, architecture, this kit

90-day plan (say this in the last 20 seconds)

1. Deploy MandateBook to Tempo, pathUSD deposits, one design-partner agent.
2. MPP session vouchers so a cap is reserved once and many 402s stream off-chain.
3. SOC2-shaped export: department codes, CSV, webhook to NetSuite/Brex.

Do not

• Exceed three minutes.
• Lead with tokenomics.
• Skip the revert. Judges need to see fail-closed.
• Submit without a public URL and a README that issues a mandate in one command.