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Tracked since2026
0 reviews trackedThe Bottom Line
Entry price
Paid plans only
Biggest pro
Extremely low cost per envelope compared to alternatives, with no minimums or contracts.
Biggest con
Priority support is an additional paid add-on.
TL;DR - Firma.dev
- Embed e-signatures directly into applications via a simple REST API.
- Offers ultra-low, pay-per-envelope pricing with no minimums or contracts.
- Provides white-labeling, team management, and compliance for SaaS platforms.
Pricing: Paid only
Best for: Enterprises & pros
What is Firma.dev?
Firma.dev offers an electronic signature API designed specifically for developers and SaaS companies. It allows users to embed document signing capabilities directly into their applications, eliminating the need for redirects or external accounts. The service emphasizes ease of integration with a simple REST API, comprehensive documentation, and pre-built UI components. This API is built for scalability and white-labeling, enabling SaaS platforms to manage unlimited teams, apply custom branding, and even resell e-signature services. It adheres to major compliance standards like ESIGN, UETA, eIDAS, and GDPR, ensuring secure and legally enforceable digital signatures. The pricing model is pay-as-you-go per envelope, with no minimums or subscription fees, making it a cost-effective solution for integrating e-signature functionality.
Pros & Cons
Pros
- Extremely low cost per envelope compared to alternatives, with no minimums or contracts.
- Designed for developers with easy integration, comprehensive API documentation, and pre-built UI components.
- Supports full white-labeling and team isolation, ideal for SaaS and reseller models.
- Compliant with major e-signature regulations (ESIGN, UETA, eIDAS, GDPR).
- Offers unlimited free testing with real documents before incurring costs.
Cons
- Priority support is an additional paid add-on.
- May require development resources to integrate the API into existing applications.
Key Features
REST API for e-signaturesWhite-labeling and custom brandingUnlimited team management with data isolationReal-time event streaming and webhooksDocument template creation and managementDocument sending and status trackingAudit trails and certificates of completionCustomer workspaces for isolated data and analytics
Pricing Plans
Free TrialPricing checked Jun 12, 2026
Pay-as-you-go
€0.029 / envelope
- Unlimited teams included
- Full API access from day one
- Test with real documents, free
- Flat fee for everyone, forever
- No minimums
- No contracts
- No per-seat fees
- Embedded editors
Priority Support
€100 / Month
- Guaranteed 1 business day response times via email
How Firma.dev's pricing compares
At €100/mo, Firma.dev is the most premium of its 3 direct competitors.
Entry paid plan, monthly. Pricing checked Jun 12, 2026.
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Firma.dev FAQ
How does Firma.dev facilitate embedding e-signatures into an application?
Firma.dev provides an electronic signature API that developers can integrate directly into their applications. It offers a simple REST API and pre-built UI components to streamline the process, allowing for document signing within the app interface.
Which teams would benefit most from using Firma.dev?
Firma.dev is best suited for development teams and SaaS companies looking to embed legally binding e-signature capabilities directly into their software. Its white-labeling and team isolation features are particularly beneficial for platforms managing multiple clients or reselling services.
How is Firma.dev priced?
Firma.dev uses a pay-as-you-go pricing model based on the number of envelopes used. There are no minimums, subscription fees, or contracts required, making it a flexible option for integrating e-signature functionality.
Can Firma.dev be customized to match a company's branding?
Yes, Firma.dev supports full white-labeling, allowing companies to apply custom branding to the e-signature experience. This feature is designed for SaaS platforms and resellers who need to maintain their brand identity within their applications.
What kind of compliance standards does Firma.dev meet for e-signatures?
Firma.dev adheres to major compliance standards for electronic signatures, including ESIGN, UETA, eIDAS, and GDPR. This ensures that the digital signatures processed through the API are secure and legally enforceable.
How does Firma.dev compare to HelloSign?
Firma.dev offers an extremely low cost per envelope with no minimums or contracts, which can be a more cost-effective solution compared to alternatives like HelloSign. It is specifically designed for developers and SaaS companies to embed e-signatures directly into their applications with full white-labeling.
Source: firma.dev