The new standard in
e-signatures.

The first blockchain-powered e-signature API. Built by developers for developers.

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Secured with the Ethereum blockchain

Permanent proofs

Signed documents remain sealed and immutable.

Traceability

Trace the documents and versions back to their source.

Transparency

Verify the content, data, and managers of a signed file.

Reliability

Signatures are valid and legally binding just as on paper.

API first

SignTag is an API-first service that allows for rapid and seamless integration. It connects to the blockchain and does all the work for you.

curl --request POST \
  --url https://api.signtag.io/v1/sign \
  --header "Authorization: Bearer $SIGNTAG_API_KEY" \
  --header 'Content-Type: application/json' \
  --data '{"signiture": { owner, receiver }}'
    

Advanced and straightforward API gateway

API dashboard

API dashboard

  • Comprehensive documentation
  • Powerful yet seamless integration
  • Connect on web and mobile
  • Lightweight and easy set-up
For your business

For your business

  • Secure 2FA sign-in
  • Legally binding
  • Digitize your workflow
  • No set-up fees
  • No sales call needed
Advanced features

Advanced features

  • Assign multiple participants to a folder
  • Legally binding
  • Decline signing
  • And more coming

Pricing models

Pricing info coming soon, stay tuned and sign up for updates.

Sign up for early access

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