Signature of documents
JAAK Signa That's our API electronic signature that allows to sign documents with legal validity in Mexico. It supports multiple types of signature depending on the level of safety and compliance required by your case of use.
Signature types available
| Type | Verification | Legal validity | Case of use |
|---|---|---|---|
| Simple | None | Low | Terms and conditions, privacy notices |
| Advanced (OTP) | Email or SMS | Average | Low-risk contracts, internal arrangements |
| Biometric | KYC face with life proof | High | Financial contracts, leases |
| FEL | Certificate SAT | Very high | Inputs and tax documents |
| PSC | Certification service provider | Very high | Critical legal documents |
Recommendation
For most commercial use cases, the biometric offers best balance between security, legal validity and user experience.
Basic signature flow
The electronic signature process follows these steps:
1. Create template → 2. Create sending → 3. Sign → 4. Download
- Creating template: uploads a PDF document and defines sign zones
- Create sending (submission): Generates a sign link with the signatory's data
- Sign: The signatory complete an identity and signature check
- Download: Obtain signed document with sign certificate
Base URLs
| Environment | URL |
|---|---|
| Sandbox | https://signa.sandbox.jaak.ai |
| Production | https://signa.jaak.ai |
Test environment
Always use the sandbox environment during development. Sandbox signatures have no legal validity and documents are automatically deleted after 30 days.
First steps
- Rapid guide - Set up your first signature in 5 minutes
- Type of signature - Understand the differences between each type
- Authentication - authentication challenges