Use Case
E-Signatures for Fintech
Embed legally defensible signing into your fintech product with a REST API, PAdES-LTA digital signatures, white-label branding, and real-time webhook notifications.
Challenges fintech platforms face
⚠ Integration speed requirements
Fintech teams ship fast. E-signature providers with complex SDKs, slow sandbox environments, and rigid document models become integration bottlenecks that delay product launches.
⚠ Regulatory compliance (SOC 2, PCI)
Financial services require provable document integrity, identity verification, and retention policies. Auditors need evidence that signed agreements are tamper-evident and properly retained.
⚠ White-label UX expectations
Users expect a smooth experience within your app. Redirecting to a third-party signing page breaks trust and increases abandonment, especially for sensitive financial documents.
How Abundera Sign supports fintech workflows
✓ REST API with 139 endpoints
Full REST API with OpenAPI 3.0 spec, Postman collection, and webhook event notifications. Create envelopes, track status, and download signed PDFs, all programmatically.
✓ Embedded signing (iframe)
Embed the signing experience directly in your app via iframe. Users never leave your product, the signing page loads inside your UI with your branding.
✓ White-label branding API
Custom logos, colors, domains, and email sender addresses. Your users see your brand throughout the entire signing experience, emails, signing pages, and certificates.
✓ PAdES-LTA digital signatures
Every sealed PDF includes a PAdES-LTA digital signature with an AATL-certified certificate. Adobe shows a green checkmark, no manual trust configuration needed by recipients.
✓ Webhook event notifications
Real-time HMAC-signed webhooks for every signing event, viewed, signed, declined, completed. Drive your app logic from signing events without polling.
✓ Identity verification (KBA, ID, OTP)
Layer SMS OTP, government ID verification, and knowledge-based authentication per document. Loan agreements get stronger identity proof than routine disclosures.
Ready-to-use fintech templates
Ship signing faster with a developer-first API
Try the full signing experience, no account needed. See embedded signing, PAdES-LTA digital signatures, and cryptographic proof.