Firma.dev
Ship e-signatures in your app today, ~5¢ per envelope (€0.049) .
A startup from the United States.
Ship e-signatures in your app today, ~5¢ per envelope (€0.049) .
A startup from the United States.
This page is designed to help you find out whether Firma.dev is good and if it is the right choice for you.
Firma.dev is the developer-first e-signature API built for startups and mid-sized SaaS companies. With a clean REST API and embeddable template and signing editors, developers can ship e-signature workflows in hours, not weeks.
Firma.dev's pricing model is straightforward: pay-as-you-go at just €0.049 (about 5 cents USD) per envelope. No monthly minimums, no contracts, no suprise fees. That's a fraction of the cost of legacy providers like DocuSign, which makes Firma.dev a strong fit for cost-sensitive teams scaling e-signature across products or customers.
Every customer gets a dedicated workspace, a secure, partitioned space for templates, documents, and envelope usage. This makes it easy to manage usage by client or environment, with no cross-tenant exposure and no complex access rules.
Firma.dev is designed with compliance in mind and aligns with key frameworks including the ESIGN Act, UETA, HIPAA, GDPR, and eIDAS. Security practices align with SOC 2 and ISO 27001 standards.
Whether you're building self-serve onboarding, automating contract workflows, or integrating embedded signing into your SaaS product, Firma.dev makes it fast and developer-friendly to get there. There's no demo to schedule and no sales process. Sign up, get your API key, and start sending envelopes.
Key capabilities:
Embedded template and signer editors, no iframe hacks Simple, modern API, send and sign in a few lines of code Per-workspace analytics Webhooks for envelope events Audit trails and certificate of completion
Use cases: SaaS onboarding flows, B2B contracts, HR and legal document automation, healthcare and financial e-signatures, customer document portals.
Start building for free at firma.dev. No credit card required.
Listed in
Pricing
$0.049 per envelope, pay-as-you-go
Integration Time
Hours, not weeks
Compliance
ESIGN, UETA, eIDAS, HIPAA, SOC 2
Customer Workspaces
Isolated per-customer environments
Embedded Editors
Template builder + signing flow, both embeddable
Massively Cheaper: Firma costs just 2.9¢ per envelope—that’s 10–20x less than DocuSign or Dropbox Sign. No monthly fees, no lock-ins.
Built for Developers: Simple, modern API. Embed template and signing editors directly in your app. Real docs, real examples. Integrate in hours—not weeks.
Customer Workspaces: Partition templates and usage per customer. Clean, secure isolation—ideal for SaaS multi-tenant models.
Instant Access: No sales hoops, no demos. Sign up, get your API key, and ship e-signatures the same day.
Compliance-Aligned: Designed to support ESIGN, HIPAA, eIDAS, GDPR, SOC 2 principles, and more—without the red tape.
If pricing, speed, and simplicity matter—Firma is the clear choice.
They’re building customer-facing apps that need embedded e-signatures—fast, secure, and without bloated pricing or legacy platforms.
More specifically: Startup CTOs and engineers looking to ship features quickly without overspending on DocuSign. Mid-market SaaS product teams needing embedded signing and document workflows that scale with usage. B2B platforms offering e-signature as part of onboarding, contracts, HR, or compliance workflows. Developers replacing manual or PDF-based flows with API-driven, automated signing flows. Teams with multiple clients needing private workspaces per customer, such as CRMs, legaltech, fintech, or health SaaS tools.
What they care about: Fast integration, real docs, clean API Affordable and predictable usage-based pricing Full embedding without clunky iframes Security and compliance without vendor headaches
Firma was built for developers who needed a faster, simpler, and radically more affordable way to add legally binding e-signatures to their apps. Frustrated by overpriced legacy tools and the complexity of building e-signature flows in-house, the founders created Firma: a pay-as-you-go API (just 2.9¢ per envelope), with embedded signing and templates, instant onboarding, and no enterprise red tape. It’s built for SaaS teams who want full control over the signing experience, clean customer-by-customer isolation, and compliance with frameworks like ESIGN, HIPAA, and eIDAS—all without spending weeks on integration or thousands per month.
Firma is built around a fast, modern REST API designed for developers who need to embed e-signatures directly into their apps. While the company hasn’t publicly listed its full tech stack, it clearly uses a secure, event-driven backend to support real-time workflows like template creation, signing events, and status webhooks. The front-end includes embedded signing and template editors—likely built with a JavaScript framework like React—to let developers white-label the signing experience inside their own platforms. Firma emphasizes encryption in transit and at rest, audit trails, and compliance with frameworks like ESIGN, HIPAA, eIDAS, and GDPR, so secure storage and token-based API auth (like JWT) are expected under the hood.
On the backend, Firma likely uses a combination of cloud-based object storage (e.g. S3) for documents, a relational or NoSQL database for metadata, and a message queue or job runner to manage asynchronous workflows. The architecture is designed to support multi-workspace isolation, meaning each customer has logically separated templates, documents, and analytics—ideal for SaaS products serving many clients. This setup, paired with usage-based pricing and clean developer tooling, positions Firma as a scalable, high-performance alternative to legacy e-signature platforms like DocuSign and HelloSign.
0.049 ¢ per envelope — radically affordable, no minimums or contracts.
Fast dev setup — embed signing + templates, integrate in hours.
Clean API — modern REST API with real docs, webhooks, and analytics.
Private workspaces — isolate templates and usage by customer or environment.
Fully embeddable — no iframes, full editor and signer UX inside your app.
Frictionless onboarding — no sales calls, no upfront fees.
Compliance-ready — aligns with ESIGN, HIPAA, eIDAS, GDPR, and more.
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Check the traffic stats of Firma.dev on SimilarWeb. The key metrics to look for are: monthly visits, average visit duration, pages per visit, and traffic by country. Moreoever, check the traffic sources. For example "Direct" traffic is a good sign.
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