Firma.dev
Cheapest e-signature API for SaaS apps, with white-label embedded signing.
Tagline
Embedded e-signatures for SaaS apps
Add signing to your SaaS in one afternoon
Your app's own signing layer, not a redirect
Cheaper than DocuSign, built for developers
The embedded e-signature layer for SaaS products, not a standalone signing app.
The page repeatedly emphasizes APIs, webhooks, embedded forms, team isolation, and white-labeling, which makes this feel like infrastructure for product teams rather than a destination app.
A cheaper alternative to DocuSign, Dropbox Sign, PandaDoc, and SignNow for developers who need to ship fast.
The €0.029 per envelope price, no minimums, and API-first integration are the strongest contrast points against incumbent vendors known for higher pricing and sales friction.
Kill the branding leak: let customers sign inside your app under your own UI.
White-label embedding, custom styling, iFrame drop-in, and resell-ready messaging make the core pain not just cost, but the user-experience mismatch of sending users out to a third-party signing flow.
Primary user
Founding engineer or full-stack developer at a SaaS startup embedding e-signatures into a customer-facing product
ICP #1
Bootstrapped founder of a B2B SaaS with 3-10 employees
Pain
They need signing inside the product, but every enterprise-grade e-signature vendor adds pricing complexity, sales calls, and branding leakage that breaks the product experience.
Why this solves
Firma.dev’s no-contract, pay-per-envelope pricing and white-label embedding fit a small team that needs to ship fast and avoid getting trapped in a heavyweight procurement cycle.
ICP #2
Founding engineer at a vertical SaaS startup serving legal, HR, or finance workflows
Pain
They are spending days wiring status checks, webhook handling, templates, and recipient flows around a third-party signature tool, while also worrying about compliance and auditability.
Why this solves
The API exposes templates, teams, event streams, document status, and audit trails in one developer-friendly toolkit, reducing integration glue code and making the feature shippable in hours.
ICP #3
Product engineer at a fintech or legal tech company replacing a legacy self-hosted or locked-in signing tool
Pain
They are stuck with an expensive, rigid, or self-hosted system that is hard to customize, expensive to run, and awkward to brand as their own.
Why this solves
Firma.dev is explicitly white-label, resell-ready, and positioned as a cheaper alternative with compliance badges and team isolation, which directly addresses control, cost, and branding constraints.
Strengths
- +The price anchor is extremely strong and memorable: €0.029 per envelope is instantly differentiated.
- +It speaks directly to developers with API docs, Swagger/OpenAPI, sample apps, webhooks, and framework mentions like React, Vue, Angular, JS, and mobile.
- +The trust stack is solid for this category: SOC 2, ISO 27001, eIDAS, GDPR, data residency, and a 4.9 G2 rating.
Weaknesses
- −The page is overloaded and repetitive; several sections duplicate the same framework logos and integration claims, which makes it feel messy rather than premium.
- −The messaging is too generic in places; it says "super powerful API" and "built for SaaS" but doesn't show one crisp end-to-end use case.
- −There is no sharp comparison table against DocuSign, Dropbox Sign, PandaDoc, or SignNow, even though the product is clearly meant to win those evaluations.
- −The page mixes three jobs-to-be-done at once: cheap API, embedded UX, and resell-ready infrastructure, without clearly prioritizing one primary wedge.
- −Some copy is awkward or inconsistent, such as the FAQ cutting off at "Built for SaaS, we cut out the," which hurts credibility.
Fix these
- Rewrite the hero around one concrete outcome: 'Add embedded signing to your SaaS in one afternoon, for €0.029 per envelope.'
- Add a side-by-side comparison against DocuSign, Dropbox Sign, PandaDoc, and SignNow focused on API access, white-labeling, minimums, and price.
- Show a single complete flow visually: create template, send document, receive webhook, download signed PDF, and store certificate.
- Replace repeated framework logo clutter with one clean integration matrix and one code snippet per stack.
- Elevate the best proof points above the fold: the price, the compliance badges, the 4.9 G2 rating, and the real case study outcomes.
Drop-in replacement copy
Headline
Add signing inside your app
White-label e-signatures for SaaS, at €0.029 per envelope.
Keep users in your product
Embed signing with a drop-in iFrame and custom styling, so customers never get kicked out to another brand. That keeps the workflow clean and makes the feature feel native.
Ship the backend in hours
Use the REST API to send documents, manage templates, track status, and handle completion events through webhooks. You get the boring plumbing without building it from scratch.
Resell signatures without branding leakage
Firma.dev is built for SaaS teams that want to package signing as part of their own workflow. Teams, data isolation, and team-specific branding keep the setup clean.
Pay only when documents move
No minimums. No contracts. No sales calls. Buy credits and pay €0.029 per envelope, which makes the economics work for small teams and niche SaaS products.
FAQ
Can I embed the signing flow in my app?
Yes. Firma.dev supports white-labeled embedded signing through a drop-in iFrame with custom styling and URL parameters.
Is this for standalone document signing or SaaS products?
It’s built for SaaS products that want signing inside their own workflow. The API, webhooks, and branding controls are designed for product teams, not one-off document sending.
Do I need to talk to sales?
No. Buy credits and start using the API. There are no minimums and no contracts.
What compliance and audit features are included?
Completion certificates and audit trails are included, along with compliance claims for GDPR, eIDAS, ESIGN, and UETA.
What do I get as a developer?
A REST API, webhooks, Swagger/OpenAPI docs, sample apps, templates, team management, event streams, and pre-built UI components.
DocuSign pricing is a tax on startups. Firma.dev is €0.029 per envelope, no minimums, no sales calls. Embed signing inside your SaaS, white-label it, and ship the feature your users actually want.
Users hate getting kicked out to sign. That branding leak kills conversion. Firma.dev keeps the entire signing flow inside your app with a white-labeled iFrame, webhooks, templates, and audit trails.
This is what embedded signing looks like. 1. Create template 2. Send via API 3. User signs in your UI 4. Webhook fires 5. Signed PDF + certificate saved No redirects. No brand leak. No nonsense.
I built the cheapest e-sign API I could. Why? Because every SaaS founder I know hates enterprise pricing, sales calls, and hidden minimums. Firma.dev is pay-per-envelope only. Buy credits. Ship. Move on.
4.9 G2 and still priced like infra. That's the point. If you're a founder or engineer embedding signatures into your product, you shouldn't need a procurement cycle to send one document.
White-label signing should be the default. Firma.dev gives you embedded signing, custom styling, teams, webhooks, certificates, and a REST API. Built for SaaS apps that want to resell signatures inside their own workflow.
Every redirect costs you conversions. If your customer leaves your app to sign, you lose control of the flow. Embed Firma.dev instead: same feature, your brand, your URL, your UX.
Developers don't want another dashboard. They want an API, webhooks, docs, and a drop-in UI they can ship fast. That's what Firma.dev is: the signing layer for products, not a separate signing product.
Cheapest isn't enough unless it ships. Firma.dev includes Swagger/OpenAPI docs, sample apps, templates, event streams, and completion certificates. So teams can go from idea to live signing flow without duct tape.
Need signing in your SaaS fast? Use the API to create a template, send a document, listen for webhooks, then store the signed PDF and certificate. That's the whole product. Simple, boring, shippable.
Angle: embedded signing as product infrastructure
Most e-signature products are built like destinations. They send your users away, wrap your workflow in someone else’s branding, and turn a simple signature step into a vendor problem. That’s not what SaaS teams need. Firma.dev is the embedded signing layer for SaaS apps. You send documents through a REST API. You handle status changes with webhooks. You embed signing inside your own UI with a white-labeled iFrame. You keep the user in your product the whole time. If you’re shipping workflow software, vertical SaaS, fintech ops, legal tech, HR software, or anything where signing is part of the product, this is the infrastructure version of e-signatures. The goal is simple: make signing feel native, not outsourced. €0.029 per envelope. No minimums. No contracts. Buy credits and ship.
Angle: cost-first alternative to incumbents
The biggest mistake teams make with e-signatures is assuming the cost is just the envelope price. It’s not. The real cost is sales calls, procurement friction, minimum commitments, branding leakage, and engineering time spent duct-taping around a rigid product. Firma.dev is priced for teams that actually ship. €0.029 per envelope. No minimums. No contracts. Pay only for what you use. That matters if you’re a bootstrapped founder or a small product team trying to add signatures without turning it into a six-week vendor evaluation. The product is built around the things developers ask for: - REST API - webhooks - templates - teams - audit trails - completion certificates - embedded white-label signing This isn’t trying to be a generic document platform. It’s trying to be the cheapest serious signing layer you can plug into a SaaS product.
Angle: why white-label matters
A lot of founders think e-signature is a compliance problem. It’s also a UX problem. If your customer gets sent to another brand to sign, you’ve already lost some control of the experience. Maybe not all of it. But enough. That’s why white-label matters. Firma.dev lets you keep the signing flow inside your app with embedded iFrame signing, custom styling, team-specific branding, and webhook-driven status updates. So the flow feels like part of your product instead of a handoff to a third party. That’s especially useful if you’re building: - vertical SaaS with a workflow people repeat every day - fintech or legal tech where trust matters - internal ops tools that need an audit trail - a resell-ready feature inside your own pricing plan If signing is part of the product, it should look like part of the product. Not like a detour.
Tagline
Embedded e-signature API for SaaS
Description
Add white-label signing to your SaaS with a REST API, webhooks, templates, and audit trails. €0.029 per envelope, no minimums, no contracts, and no branding leak.
Maker's first comment
We built Firma.dev because too many teams were stuck between two bad options: expensive enterprise e-signature tools with sales calls and minimums, or clunky workflows that kicked users out of the app right when they needed to sign. If you’re a founder or engineer shipping a SaaS product, the signature step should feel native. It should live inside your UI, follow your branding, and plug into your backend with APIs and webhooks instead of manual work. Firma.dev is our attempt to make that boring in the best way possible. Send documents, embed signing, track status, and store completion certificates without building the whole thing yourself. We also wanted pricing that makes sense for smaller teams. No contracts. No minimums. Just buy credits and ship. Would love feedback from anyone who has tried to embed signing into a product: what was painful, what broke, and what would make this a no-brainer for your stack?
Pinned maker comment
Would love feedback on the API docs, the embedded signing flow, and whether the pricing model is actually simple enough for small SaaS teams.
Meta
Targeting SaaS founders who hate DocuSign pricing
Hypothesis: bootstrapped SaaS founders and founding engineers will switch if they can embed white-label signing for €0.029 per envelope with no minimums. Firma.dev keeps signing inside your app with REST API, webhooks, and audit trails.
Google Search
Cheaper embedded e-signature API for SaaS
Hypothesis: developers searching for DocuSign alternatives want API-first, white-label signing without sales friction. Firma.dev gives you embedded signing, webhooks, templates, and completion certificates at €0.029 per envelope.
Reddit Promoted
Building SaaS with signing inside the app?
Hypothesis: founders in r/SaaS, r/SideProject, and r/indiehackers are tired of redirect-based signing flows and enterprise pricing. Firma.dev is a white-label e-signature API with embedded signing, no minimums, and pay-per-envelope pricing.
Subreddits
r/SideProject
Show the before/after of embedding signing inside a SaaS app and share the pricing comparison to incumbents.
Rules: No pure self-promo; lead with the problem, build process, and concrete learnings.
r/indiehackers
Write about how you built the cheapest white-label signing layer and why pricing/minimums kill small-team adoption.
Rules: Must share a story, numbers, and lessons; avoid link-dumping in the title.
r/microsaas
Target bootstrapped founders who need embedded signing as a paid feature without enterprise overhead.
Rules: Focus on practical product decisions and revenue impact; no spammy launch posts.
r/SaaS
Talk about reducing churn and conversion loss by keeping signing inside the product instead of redirecting out.
Rules: Needs to be educational and relevant; avoid obvious ads.
r/EntrepreneurRideAlong
Share the build, launch, and first customer lessons from shipping a developer API with compliance constraints.
Rules: Best when framed as a journey with transparency and numbers.
Communities
Post the build story, pricing rationale, and one concrete integration win. Comment on other founders' SaaS infrastructure posts before linking anything.
Launch with a technical angle: embedded signing, API design, and why white-label matters. Avoid marketing copy; be blunt and answer every technical question.
Lead with the price, the embedded flow, and the developer use case. Use the first comment to explain the problem and what feedback you want.
SaaS Builder Discords
Join founder/devtool Discords, answer questions about signature workflows, and offer integration help instead of dropping the link first.
Cold outreach template
Hey {firstName} - saw {context} and thought of Firma.dev. If signing is part of your SaaS workflow, we let you embed it with a white-label API, webhooks, and pay-per-envelope pricing. Want me to send a 2-minute integration example?
Product Hunt timing
Launch on Tuesday at 12:01am PST / 9:01am CET. That catches Europe and the US workday overlap, which fits a developer-first SaaS product; founders and engineers are most active early in the week when they’re planning implementation work.
Indie Hackers post ideas
- 01How we built a white-label e-signature API for €0.029 per envelope
- 02Why redirect-based signing kills conversion inside SaaS products
- 03What it takes to make e-signatures feel native inside a workflow app
Competitor alternatives
Current tone of voice
Technical, blunt, and founder-y with a cost-first edge; for example, "Cheapest e-signature API (built for devs)" and "I'm a geek. I don't have to speak to anyone. I can just get started now."
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