Comparison
OneSpan Sign vs Signbee
OneSpan Sign is military-grade document security. Signbee is developer-grade simplicity.
Quick comparison
| OneSpan Sign | Signbee | |
|---|---|---|
| Best for | Financial institutions, government agencies, and healthcare organisations requiring the highest-stakes document security with hardware authentication and notarisation | Simplest API for developers + AI agents |
| Pricing | Professional from $22/user/month | Free — 5 docs/month |
| Time to first doc | Minutes to hours | Under 60 seconds |
| Document input | Templates / PDF upload | Markdown or PDF URL |
| Auth | OAuth / API key | API key or none (OTP) |
| AI agent support | — | MCP + Agent Skill + llms.txt |
What is OneSpan Sign?
OneSpan Sign provides military-grade digital signatures with AES 256-bit encryption, embedded cryptographic audit trails, FIDO hardware authentication, facial liveness detection, and electronic notarisation (IPEN/RON). Purpose-built for financial, government, and healthcare sectors.
Best for: Financial institutions, government agencies, and healthcare organisations requiring the highest-stakes document security with hardware authentication and notarisation.
What is Signbee?
Signbee is an API-first document signing service built for developers and AI agents. You POST markdown or a PDF URL, specify sender and recipient, and Signbee handles everything: PDF generation, email verification, signature capture, and SHA-256 certificate delivery. One API call, no templates, no SDK.
Best for: Developers who want the shortest path from code to signed document, and AI agents that need to send contracts autonomously.
→ signb.ee
Where OneSpan Sign wins
- AES 256-bit encryption with embedded audit trails
- FIDO hardware and facial liveness authentication
- Prior signatures invalidated if document altered between signers
- In-person and Remote Online Notarisation
- FedRAMP and SOC 2 compliance
Where Signbee wins
- One API call — No templates, no SDK, no webhook setup
- Markdown documents — Write the contract in text, Signbee generates the PDF
- No account required — Sender verifies via email OTP
- AI-native — MCP server, Agent Skill, llms.txt
- Free tier with real documents — 5 docs/month, no credit card
- SHA-256 certificate — Tamper-proof audit trail on every document
OneSpan Sign limitations
- Modular pricing makes TCO unpredictable
- Military-grade security is overkill for standard commercial signing
- Enterprise onboarding process required
- Per-SMS and per-component fees add hidden costs
Signbee limitations
- Two-party signing only (no multi-signer routing)
- No visual template builder (markdown or PDF URL only)
- No field placement (no drag-and-drop signature boxes)
- Smaller free tier than some competitors
The verdict
Choose OneSpan Sign if you're in financial services, government, or healthcare and need embedded cryptographic audit trails with hardware authentication. Choose Signbee if you need simple, legally binding signatures for standard commercial documents at transparent pricing.
FAQs
What is the difference between OneSpan Sign and Signbee?
Choose OneSpan Sign if you're in financial services, government, or healthcare and need embedded cryptographic audit trails with hardware authentication. Choose Signbee if you need simple, legally binding signatures for standard commercial documents at transparent pricing.
How much does OneSpan Sign cost?
Professional from $22/user/month. SMS authentication $0.10-$0.50/verification. API, bulk send, and notarisation modules carry additional component fees.
Is Signbee a good alternative to OneSpan Sign?
Yes. Choose OneSpan Sign if you're in financial services, government, or healthcare and need embedded cryptographic audit trails with hardware authentication. Choose Signbee if you need simple, legally binding signatures for standard commercial documents at transparent pricing. Signbee offers a free tier of 5 documents per month with no credit card required.
Can AI agents use Signbee instead of OneSpan Sign?
Yes. Signbee has native AI agent support via an MCP server, Agent Skill, and llms.txt. AI agents like Claude, Cursor, and Windsurf can send documents for signature with natural language.
Related resources
Try Signbee — free, no credit card.