Document Signing API Free Tier: No Per-Document Bill
DocuSign charges per envelope. Adobe Sign starts at 1K a year for API access. DocuSeal gives you a full REST API with unlimited sandbox testing at zero cost, and no surprise overages when you go live. Opsily hosts it for you on EU servers, fully managed, so you skip the DevOps and keep the control.
Why Teams Leave DocuSign
Cost and control. Those are the two things DocuSign gets wrong.
Overages Break Every Budget
DocuSign's Standard plan starts at $50 a month and covers 40 envelopes. Go one envelope over and you pay $0.10 to $2.00 per envelope on top. A team sending 200 documents a month can find itself staring at a bill that was supposed to be $50 but landed at $180. DocuSeal on Opsily charges a flat monthly fee: no per-document cost, no overage clause, no surprises mid-month.
API Access Should Not Need Approval
DocuSign gates bulk sending, embedded signing, and automation behind manual approval processes. That approval can take days. DocuSeal's REST API is open the moment your instance is live: webhooks, SDKs for JavaScript, Python, and TypeScript, and native connectors for n8n, Zapier, and Make.com. You build on day one, not day eight.
Per-Seat Pricing Punishes Growth
DocuSign charges per user. Add a developer to your API integration team and the bill goes up immediately. DocuSeal on Opsily uses one flat monthly fee with no per-seat charges. Add five developers, two operations staff, and a product manager: the price does not move. That is a real difference for teams scaling fast.
Built for teams who need reliability
Document Signing API Free Tier: What You Actually Get
Not a stripped-down free tier. A full signing platform with an unlimited sandbox so you can test eSignature APIs without paying anything before you go live.
Sandbox Testing, Unlimited and Free
DocuSeal's test mode lets your developers send, sign, and integrate without limits and without paying a cent. Dropbox Sign gives you 3 free signature requests a month in production. DocuSeal gives you unlimited signing in sandbox, full API access, and real webhooks firing to your dev environment. Your team can build an entire onboarding flow before you spend a dollar.
Twelve Field Types, One Builder
Signature, initials, date, text input, checkbox, file upload, formula fields, conditionals: DocuSeal has 12 field types in a drag-and-drop form builder that needs no coding. Multiple signers per document, sequential or parallel. Bulk send to 500 recipients at once via CSV import. This is not a lightweight alternative: it is a full eSignature platform.
Automation on Day One
DocuSeal fires webhooks on every signature event. Pre-built connectors for n8n, Zapier, and Make.com mean you can trigger a contract from a CRM update, or push a completed PDF to Nextcloud the moment a signer finishes. Six official SDKs. OpenAPI spec available for Postman or Cursor. No integration approval required, no waiting.
Built for teams who need reliability
Why Self-Hosting Makes Sense in 2026
Your documents. Your server. Your call.
Your Data Stays in the EU
DocuSign stores data in the US. For any EU company handling contracts, that creates a cross-border data transfer problem under GDPR Article 46. DocuSeal on Opsily runs on Hetzner servers in Frankfurt, Germany. Every signed document, every audit trail, every signer's data: all of it stays inside the EU with no US transfer, no DPA negotiation, no compliance friction.
eIDAS-Compliant Signatures Built In
DocuSeal supports Qualified eSignature (QeS) and Advanced eSignature (AeS) under EU eIDAS regulation 2014/910/EU. Those signatures are legally equivalent to handwritten signatures in any EU court or commercial contract. Healthcare providers, law firms, financial services, real estate agencies: all can use DocuSeal without a separate legal opinion on signature validity.
Flat Cost, Unlimited Volume
The real-world Hetzner cost for self-hosting DocuSeal is around 9 euros a month for the underlying server. Through Opsily, you get that server fully managed: SSL, backups, security patches, autoscaling, all included in one flat plan with no per-seat and no per-document charge. Send 50 documents a month or 5,000: the bill does not change.
Built for teams who need reliability
From Zero to Signing API in Three Minutes
No Docker. No PostgreSQL config. No server wrangling.
Choose Your App
Select an app to get started.
Create Your Opsily Account
Sign up at console.opsily.com. No credit card required to start. Pick your plan: Small covers 3 apps, Medium covers 5. DocuSeal counts as one app.
Deploy DocuSeal With One Click
Select DocuSeal from the catalog and click Install. Opsily provisions your server in Frankfurt, runs the container, sets up SSL, and gives you a live URL. Average deploy time: under 3 minutes.
Connect Your API and Test for Free
Log into your DocuSeal dashboard and grab your API key. Enable test mode and send unlimited signature requests to your development environment. Build your full integration before a single production document is signed.
Go Live With a Flat Monthly Bill
Switch from sandbox to production. Your Opsily plan covers all the infrastructure. DocuSeal has no per-document charge when self-hosted: unlimited signing, one flat price, no surprises.
Pair DocuSeal With Your Existing Stack
DocuSeal connects natively to the automation and storage tools your team already uses. Deploy them alongside DocuSeal on the same Opsily plan.
Self-hosted workflow automation with robust PostgreSQL data persistence
Self-hosted collaboration platform that puts data privacy first
Simple, Transparent Pricing
One flat monthly fee. No per-seat charges. No per-document fees. All plans include GDPR-compliant hosting in Frankfurt, daily backups, SSL, and managed security updates.
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The Right Choice for Document Signing Data
Signed documents contain sensitive information. Where that data lives, and who can access it, matters.
GDPR-Compliant EU Hosting
All data stays on Hetzner servers in Frankfurt, Germany. No US data transfer. No cross-border compliance problem. Your GDPR obligations stay simple.
eIDAS-Valid Signatures
DocuSeal supports Qualified eSignature (QeS) and Advanced eSignature (AeS) under EU regulation 2014/910/EU. Legally binding in every EU member state.
ISO/IEC 27001 Infrastructure
Hetzner operates under German law and ISO/IEC 27001 certification. Your signed documents sit on infrastructure built for regulated industries.
No Third-Party Data Access
Opsily manages infrastructure, not your content. Signed PDFs, audit trails, and signer data are encrypted on your server. We do not read your documents.
Full Audit Trails Stored Locally
Every signature event logs the timestamp, IP address, device, and signer intent. Those audit records live on your server, not a vendor's cloud you cannot audit.
Common Questions About Managed DocuSeal Hosting
Setup, pricing, API access, GDPR: the answers without the sales pitch.
DocuSeal's sandbox mode is completely free and has no document limit. You can send, sign, and test your entire API integration without paying anything. Sandbox documents are watermarked, which keeps them distinct from production, but every API feature works identically: webhooks fire, SDKs connect, and embedded signing renders in your UI. When you are ready to go live, you switch to production mode. On a self-hosted Opsily instance, there are no per-document charges in production either: your flat plan covers unlimited signing.
Deploy DocuSeal: Skip the Overages, Keep the API
One flat Opsily plan gives your team a full document signing API on EU servers, no per-document charges, no vendor lock-in. Start in sandbox for free and go live when you are ready.