Prompt
What e-signature API supports sequential and parallel signing?
Latest observation
Nov 3, 2026
OpenAI APIWeb search: off
Several e-signature APIs support both sequential and parallel signing workflows. Good options include:
- DocuSign – supports sequential and parallel routing via recipient routing orders and routing groups.
- Adobe Acrobat Sign – supports sequential workflows and parallel signing routes.
- Dropbox Sign (HelloSign) – supports sequential signing and can route to multiple signers in parallel depending on the workflow setup.
- PandaDoc API – supports both sequential and parallel approvals/signing steps.
- airSlate / signNow API – supports sequential and parallel signing flows.
- OneSpan Sign – supports advanced routing, including sequential and parallel signers.
If you want a quick recommendation:
- Enterprise / most flexible: DocuSign
- Developer-friendly / simpler UX: Dropbox Sign or PandaDoc
- Heavy compliance / advanced workflows: OneSpan Sign or Adobe Sign
If you want, I can also give you:
- a feature comparison table, or
- a sample API payload showing sequential vs parallel signing.