Every delivery is checked against the agreed criteria by a neutral reviewer before you decide.

See how

The Neutral Partyin Every Deal

Middleman sits between two strangers so they never have to trust each other. It holds the money, sharpens the terms before anything is funded, checks the delivery against what was agreed, and releases on approval — by card or USDC.

Funds are held in escrow until you approve. Nothing moves without a decision.

How it works

How a milestone moves

Four states, one direction. Nothing skips a step, and nothing moves backward without a recorded reason.

  1. 1

    Define

    Write each milestone with an amount and acceptance criteria specific enough that a stranger could judge it.

  2. 2

    Fund

    The client pays the milestone into escrow through Stripe Checkout. The contractor sees it is funded before starting.

  3. 3

    Deliver

    The contractor uploads the artifacts. Every file is SHA-256 fingerprinted, then the AI reads it against the criteria.

  4. 4

    Release

    The client approves. Funds transfer to the contractor’s Stripe account and the audit log seals the decision.

AI verification

Proof is read before you are asked to judge it

When a contractor submits, the model opens every artifact — PDFs, photos, spreadsheets, code — and checks each acceptance criterion one at a time. You get a scored verdict with evidence, not a summary.

  • Criterion by criterion

    Each line of your acceptance criteria is marked met or unmet with the evidence quoted.

  • Advisory, never final

    The AI cannot move money. Only the client’s approve button releases funds.

  • Nothing hidden

    Verdict, score, and reasoning are written to the milestone and visible to both parties.

AI pre-check

M2 · Foundation pour complete

86PASS
  • Foundation poured to 4,200 sq ft per approved plan
  • Third-party inspection report attached and signed
  • Rebar spacing photos at 12" on center
  • Moisture barrier visible in at least one photo

Reasoning

Inspection report (p. 2) certifies 4,180 sq ft with a signature dated 09/08. Rebar photos show consistent 12" spacing across three angles. No image clearly shows the moisture barrier — recommend the client confirm on site or request one additional photo.

inspection-report.pdf 3 photossha256 verified

Funds held, never touched

Card payments settle into a Stripe balance; USDC locks in a non-custodial escrow contract. Either way, funds move to the other party only on approval. Card data never touches this app.

Every file fingerprinted

Artifacts are SHA-256 hashed in the browser before upload and stored in a private bucket. The hash is what the AI review and the audit log refer to.

An audit log that only grows

Funding, submission, verdict, approval, rejection, and release each write an event with actor and timestamp. Nothing is edited after the fact.

Stop trusting strangers. Start using a Middleman.

Open your first deal in under two minutes. Invite the other party by email — they see everything the moment they sign in, and so does the Middleman.

Create a contract