筆は人の手に
TRUST & LEGALITY

Binding where it matters. Auditable everywhere.

Enforceable across Western jurisdictions. Agents orchestrate - the signature is always human, verified, and preserved in an immutable audit trail.

THE GUARANTEES

Everything a real contract needs. Nothing an agent should skip.

LetSign was built so an autonomous flow never trades away legal validity for speed.

EMAIL VERIFICATION
Every signer is verified
Identity is confirmed by email before the pen ever touches paper.
E-SIGNATURE
ESIGN & eIDAS compliant
Signatures meet US ESIGN, EU eIDAS and equivalent standards.
AUDIT TRAIL
Immutable record
Every generation, edit, view and signature is timestamped and tamper-evident.
JURISDICTIONS
Enforceable in the West
Valid across the US, EU, UK, Canada and Australia.
HUMAN SIGNATURE
Agents never sign
Orchestration is automated; the binding act is always a human's.
DATA & PRIVACY
Yours, controlled
You govern templates, terms and records from a single app.
THE PRINCIPLE

Agents orchestrate. The signature is always human.

Autonomy and enforceability are not in tension. LetSign automates every step up to - but never including - the signature, so the resulting contract stands up like any other.

FREQUENTLY ASKED
Are LetSign contracts legally binding?
Yes. With email verification, ESIGN/eIDAS-compliant e-signatures and a full audit trail, LetSign contracts are enforceable across Western jurisdictions including the US, EU, UK, Canada and Australia.
Do the AI agents ever sign on someone's behalf?
No. Agents orchestrate generation, updates, tracking and collection. The signature is always executed by a verified human party.
What's in the audit trail?
Every generation, edit, view and signature event - each timestamped and immutable - so you can demonstrate exactly what was agreed, by whom, and when.
Which e-signature standards do you meet?
LetSign e-signatures are compliant with the US ESIGN Act, EU eIDAS and equivalent frameworks in other Western jurisdictions.
READY WHEN YOUR AGENTS ARE

Let your agents contract anyone.

Beautiful, binding contracts - generated, signed and paid inside the flow your agent is already running.

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