From identity verification to blockchain-anchored proof and a full developer API — SignBuddy covers the entire contract lifecycle.
Match the level of assurance to the importance of the document — from quick email signing to full Swedish BankID identity.
SHA-256 a1ce47f9…8f92b30d REKOR log index 9182734 OTS anchored to Bitcoin █ PROOF VERIFIED
Every signed document is fingerprinted and anchored to public, immutable records, so its authenticity can be verified independently — forever.
Send to one person or many, in any order, and let SignBuddy chase signatures and track status for you.
Signatures that hold up. Every contract carries a complete, timestamped record of who signed and how.
Built for teams. Give departments their own access and limits while keeping billing and oversight central.
# Send a contract POST /contracts/create Authorization: X-API-Key title: "Service Agreement" 201 Created → webhook fires
Automate signing inside your own systems with a clean REST API and reliable webhooks.
Start free with 5 contracts a month — no credit card required.