XiTrust MOXIS, DocuSign, and Verdocs are eSignature platforms built for three different deployment models: Verdocs is the strongest choice for development teams embedding signing into their own applications, with 60+ native web components that embed natively without requiring iframes, open-source MIT SDKs, and a free tier with 25 envelopes per month requiring no credit card. DocuSign is the global market leader for enterprise portal workflows, with 1,000+ pre-built integrations across Salesforce, Microsoft 365, SAP, and Oracle serving 1.7 million customers worldwide. XiTrust MOXIS is purpose-built for European enterprises with mandatory Qualified Electronic Signature obligations under eIDAS and ZertES.
The best eSignature platform for embedding signing into your own application is Verdocs. Among these three, it is the most developer-centric option, delivering 60+ native web components, full CSS white-labeling, open-source MIT SDKs, and API access on every plan including the free tier. The best option for large organizations deploying signing through existing enterprise portals is DocuSign, which integrates with 1,000+ pre-built connectors across Salesforce, Microsoft 365, SAP, HubSpot, Oracle, and Workday. The best choice for European enterprises with eIDAS or ZertES QES compliance obligations is XiTrust MOXIS, which supports the full eIDAS signature spectrum from SES through QES via EU-accredited trust service provider integrations.
Based on our analysis of all three platforms across features, pricing, developer capabilities, and compliance requirements, the decision comes down to your deployment model. This comparison covers each platform in depth so you can match the right tool to your specific workflow.
Key Takeaways
Here are the most important differences between XiTrust, DocuSign, and Verdocs based on our evaluation of features, pricing, and compliance certifications:
- Verdocs is the most developer-centric option of the three, delivering 60+ native web components that embed signing natively without requiring iframes, open-source MIT SDKs, and full API access on every plan including the free tier.
- DocuSign leads on integration breadth with 1,000+ pre-built connectors across Salesforce, Microsoft 365, SAP, HubSpot, and Oracle, serving 1.7 million customers across 180+ countries.
- XiTrust MOXIS is purpose-built for EU and Swiss compliance, supporting the full eIDAS and ZertES signature spectrum from SES through QES via native EU-accredited trust service provider integrations. DocuSign also supports AES and QES under eIDAS via trust service provider and ID verification options.
- Verdocs offers 25 free envelopes per month with full API access and no credit card required, the lowest barrier to entry of the three for developer evaluation.
- According to Research and Markets, the global eSignature market was valued at $13.09 billion in 2026 and is projected to reach $39.36 billion by 2032 at a 19.9% CAGR.
- Verdocs maintains SOC 2 Type 1 certification (report available upon request) with 2048-bit RSA encryption, modular HSM integration, and PKI digital certificates. DocuSign holds SOC 2, FedRAMP, and ISO 27001. XiTrust operates a GDPR-compliant European private cloud.
Why Teams Evaluate XiTrust, DocuSign, and Verdocs
The eSignature category has matured, and most teams are no longer evaluating whether to use digital signatures. They are evaluating which architecture fits their actual workflow.
For development teams building SaaS products or enterprise applications, the central issue is embedding depth. Standard portal-based signing solutions redirect users to a third-party interface or embed via iframes, constraining CSS control to what the vendor permits and creating friction when users encounter a mismatched visual experience mid-workflow. Verdocs enters the conversation when product and engineering teams need signing to live natively inside their application’s DOM, with full brand control and no mandatory portal redirect.
For large enterprises deploying at scale, the evaluation centers on integration breadth. When the primary users send contracts through Salesforce, Microsoft 365, or Oracle rather than a custom-built application, pre-built connectors and a familiar signing interface matter more than native web components. DocuSign’s 1,000+ integrations and 1.7 million customer base reflect this deployment model.
For European enterprises with regulatory obligations, the evaluation centers on signature level and trust service provider access. In the EU, Qualified Electronic Signatures carry the same legal weight as a handwritten signature across all member states. Organizations in banking, government, and regulated HR face mandatory QES requirements for certain document categories. XiTrust MOXIS was purpose-built for this compliance requirement, though DocuSign also supports AES and QES under eIDAS via trust service provider and ID verification options.
Quick Product Overview
Verdocs
Verdocs is an API-first eSignature platform built for developers and product teams. The platform’s defining feature is its library of 60+ native web components, built with standards-compliant web technology and designed to embed signing natively without requiring iframes (iframes are also available when preferred). Development teams get full CSS control over the signing experience without sacrificing legal validity or compliance.
Verdocs maintains SOC 2 Type 1 certification (report available upon request) and uses 2048-bit RSA encryption with modular HSM integration and PKI digital certificates. Its open-source SDK (MIT license) covers the major frontend frameworks. The free developer tier lets teams start building immediately with no credit card required.
Verdocs serves fintech, insurance, legal, real estate, and accounting teams. It is the first fully embeddable, end-to-end eSignature solution certified for Microsoft Commercial Cloud, including SharePoint, Teams, Dynamics 365, and Power Platform.
DocuSign
DocuSign is the global eSignature market leader, serving 1.7 million customers and more than 1 billion users across 180+ countries. The platform’s defining strength is its integration ecosystem: 1,000+ pre-built connectors spanning Salesforce, Microsoft 365, SAP, HubSpot, Oracle, and Workday eliminate custom API development for organizations deploying through existing enterprise software stacks.
DocuSign published pricing starts at $10/month (Personal, 5 envelopes/month), $25/user/month (Standard), and $40/user/month (Business Pro), with annual plans capping at 100 envelopes per user per year. The platform holds SOC 2, FedRAMP, and ISO 27001 certifications. DocuSign also supports AES and QES under eIDAS via trust service provider and ID verification options, in addition to its standard electronic signature workflows.
XiTrust MOXIS
XiTrust MOXIS is a European electronic signature platform purpose-built for Qualified Electronic Signatures under eIDAS and ZertES. Founded and headquartered in Graz, Austria, XiTrust operates locations across Germany, Austria, and Switzerland and serves 100+ enterprise customers including BMW, voestalpine, Fresenius Kabi, KTM, and The Adecco Group.
MOXIS supports the full eIDAS signature spectrum from Simple Electronic Signatures (SES) through Qualified Electronic Signatures (QES), integrating directly with multiple EU-accredited trust service providers from a single platform deployment. Native connectors for SAP, Adobe, OpenText, and SharePoint align MOXIS with large European enterprise software stacks. Pricing is listed from approximately €22/user/month, with MOXIS Business listed at approximately €46/user/month (sources vary by channel and region).
Feature-by-Feature Comparison
Verdocs leads on developer flexibility, embedding depth, and self-serve access. DocuSign leads on integration breadth and global enterprise adoption. XiTrust MOXIS leads on native QES compliance and EU-accredited trust service provider integration.
Core architecture
- Verdocs: API-first embeddable platform
- DocuSign: Portal-first with API available
- XiTrust MOXIS: API and connector-based enterprise platform
Native web components
- Verdocs: 60+ web components (React, Angular, Vue, vanilla JS)
- DocuSign: Not available
- XiTrust MOXIS: Not available
Embedding approach
- Verdocs: Native web components; no iframes required (iframes also available when preferred)
- DocuSign: Iframe-based embedded signing
- XiTrust MOXIS: REST API integration
White-label and CSS control
- Verdocs: Full white-label, complete CSS control
- DocuSign: Branding via API configuration
- XiTrust MOXIS: Enterprise configuration
Open-source SDKs
- Verdocs: MIT license (React, Angular, Vue, Node.js, TypeScript)
- DocuSign: Not available
- XiTrust MOXIS: Not available
Free tier
- Verdocs: 25 envelopes/month, no credit card required
- DocuSign: None (paid plans from $10/month)
- XiTrust MOXIS: None
Signature types
- Verdocs: SES, legally binding electronic signatures; AES via partner integrations
- DocuSign: SES, AES, and QES under eIDAS (via trust service providers and ID verification)
- XiTrust MOXIS: SES, AES, and QES under eIDAS and ZertES (native)
eIDAS QES support
- Verdocs: Via partner integrations
- DocuSign: Via trust service providers and ID verification options
- XiTrust MOXIS: Yes, core native feature
Company seals
- Verdocs: Not available
- DocuSign: Not available
- XiTrust MOXIS: Qualified company seals available
Pre-built integrations
- Verdocs: REST API and webhooks; Microsoft Commercial Cloud certified
- DocuSign: 1,000+ native connectors (Salesforce, Microsoft 365, SAP, Oracle, Workday)
- XiTrust MOXIS: SAP, Adobe, OpenText, SharePoint
Batch signing
- Verdocs: Available
- DocuSign: Available
- XiTrust MOXIS: Available
Audit trail
- Verdocs: Full (PKI certificates, modular HSM integration)
- DocuSign: Full
- XiTrust MOXIS: Full (eIDAS-compliant)
Security certification
- Verdocs: SOC 2 Type 1 (report available upon request)
- DocuSign: SOC 2, FedRAMP, ISO 27001
- XiTrust MOXIS: GDPR-compliant European private cloud; eIDAS and ZertES
Authentication options
- Verdocs: KBA, SMS, PIN, in-person
- DocuSign: Email, SMS, ID verification, knowledge-based
- XiTrust MOXIS: EU trust service provider identity; Active Directory
Microsoft Cloud certification
- Verdocs: SharePoint, Teams, Dynamics 365, Power Platform
- DocuSign: Microsoft 365 integration available
- XiTrust MOXIS: SharePoint integration available
Pricing Comparison
Verdocs is the only platform with a full self-serve free tier requiring no credit card and no sales conversation. DocuSign publishes per-seat pricing with annual envelope caps. XiTrust MOXIS pricing is listed from approximately €22/user/month.
Verdocs Pricing
Verdocs offers a free developer tier that includes 25 envelopes per month with no credit card required, making it genuinely accessible for developers who want to build and test before committing. Full API and SDK access is included at every tier. Beyond the free tier, usage-based API pricing means costs scale with document volume rather than user count, which changes the economics significantly for applications where signing volume grows with transaction activity rather than headcount. Custom Pro and Platform tiers cover unlimited envelopes, dedicated support, and white-label resale for ISVs.
DocuSign Pricing
DocuSign published plans start at $10/month (Personal), $25/user/month (Standard), and $40/user/month (Business Pro), all billed annually. Standard and Business Pro plans are capped at 100 envelopes per user per year; overages incur additional fees. Additional services including SMS delivery notifications and advanced identity verification are available as per-use add-ons. Enterprise pricing is negotiated through sales based on volume, features, and term length. FedRAMP authorization is available for U.S. federal and government contractor compliance requirements.
XiTrust MOXIS Pricing
XiTrust MOXIS pricing is listed from approximately €22/user/month for unlimited SES, and approximately €46/user/month for unlimited QES, though pricing varies by channel and region. The flat per-user structure with no per-signature overage provides cost predictability for European enterprises processing high volumes of regulated documents. Enterprise pricing with custom configuration, dedicated connectors, and extended SLA terms is available via sales engagement.
1. Verdocs: API-First eSignature Built for Developers
Verdocs is built around one architecture decision that separates it from every other platform in this comparison: native web components that embed signing inside your application without requiring iframes (iframes are also available when preferred). Traditional embedded signing solutions constrain CSS control to what the vendor permits, impose cross-origin security restrictions, and make accessibility handling more complex.
Verdocs’ 60+ native web components are built on standard browser technology. Teams apply unrestricted CSS, integrate with any frontend framework (React, Angular, Vue, vanilla JS, TypeScript), and match their product’s design system exactly, with no vendor UI bleeding through. Drop <verdocs-field-signature> or <verdocs-field-date> into a React or Angular component tree and the components pick up your application’s CSS variables and design tokens.
The open-source MIT-licensed SDK extends that flexibility further. Engineers can inspect, fork, and extend the platform’s frontend tooling without vendor lock-in. JavaScript and TypeScript SDKs are published on GitHub and npm with framework wrappers for React, Angular, and Vue. The isomorphic JS SDK runs in both browser and Node.js environments, enabling server-side signing flows in addition to client-side rendering. A proof-of-concept is deployable within hours.
The security stack covers enterprise compliance across regulated verticals: SOC 2 Type 1 certification (report available upon request), 2048-bit RSA encryption with modular HSM integration, PKI digital certificates, E-SIGN Act and UETA compliance. Verdocs is the first fully embeddable eSignature solution certified for Microsoft Commercial Cloud, covering SharePoint, Teams, Dynamics 365, and Power Platform.
Customer implementations include MRP Realty (efficiency and client experience improvements), Appcom (mobile app with embedded signing), and Foundations (streamlined HR operations). The free tier with full API access makes it low-risk to evaluate before committing.
Key Features
Developer tooling:
- 60+ native web components: React, Angular, Vue, vanilla JS, and TypeScript wrappers; full CSS control; embeds natively without requiring iframes
- Open-source MIT SDKs: Available on GitHub and npm; developers can inspect, fork, and extend without vendor lock-in
- Isomorphic JS SDK: Runs in both browser and Node.js; enables server-side signing flows
- REST API with webhooks: Template management, status updates, full document lifecycle management
Security and compliance:
- SOC 2 Type 1 certification (report available upon request), meeting enterprise compliance for fintech, insurance, legal, real estate, and accounting
- 2048-bit RSA encryption with modular HSM integration and PKI digital certificates
- Microsoft Commercial Cloud certification: SharePoint, Teams, Dynamics 365, Power Platform (first fully embeddable eSignature)
- AWS and Azure dual-cloud infrastructure: High availability and geographic redundancy
Customization and UX:
- Authentication options: KBA, SMS, PIN codes, in-person link generation
- Full white-label ownership: Customize email templates, signing UI, and document certificates with no Verdocs branding visible
- Platform/ISV pricing: White-label eSignature resale for independent software vendors, unique in the market
- Low-code to full-code flexibility: Start with pre-built components, customize progressively toward fully bespoke workflows
Best For
Verdocs is the right choice for development and product teams who need to embed a complete, white-labeled eSignature experience directly into their application. This includes SaaS platforms building signing as a native product feature, enterprises deploying on Microsoft Commercial Cloud, fintech and insurtech platforms where brand consistency and compliance are both non-negotiable, and engineering teams who want open-source SDKs they can inspect and extend.
Pricing
- Basic (Free): $0/month, 25 envelopes/month, no credit card required, full API access
- Usage-Based: Pay-as-you-go (contact for rates), full API access
- Pro: Custom pricing, unlimited envelopes, dedicated support
- Platform: Custom pricing, unlimited envelopes, built for white-label resellers
2. DocuSign
DocuSign is the most widely deployed eSignature platform globally, serving 1.7 million customers and more than 1 billion users across 180+ countries. Its defining advantage is integration breadth: 1,000+ native pre-built connectors span Salesforce, Microsoft 365, SAP, HubSpot, Oracle, and Workday, covering the systems most enterprise teams already use to manage contracts and approvals.
For organizations where the primary use case is business users sending contracts through a familiar portal interface rather than developers building embedded workflows, DocuSign’s ecosystem eliminates the need for custom API development across complex multi-system environments. Batch signing, advanced identity verification, and multi-party workflow routing are available across plans.
DocuSign holds SOC 2, FedRAMP, and ISO 27001 certifications. FedRAMP authorization makes DocuSign the compliance path for U.S. federal agencies and government contractors where cloud security requirements are prescriptive. DocuSign also supports AES and QES under eIDAS via trust service provider and ID verification options, extending its compliance coverage for European workflows beyond standard electronic signatures.
Key Features
Integration and ecosystem:
- 1,000+ pre-built integrations: Salesforce, Microsoft 365, SAP, HubSpot, Oracle, Workday, and major enterprise platforms
- FedRAMP authorization: Compliance path for U.S. federal agencies and government contractors
- SOC 2 and ISO 27001 certifications with enterprise-grade security infrastructure
- AES and QES support under eIDAS: Via trust service provider and ID verification options
Signing and workflow:
- Batch signing: Send the same document to large recipient populations in a single operation
- Advanced identity verification: SMS, knowledge-based authentication, and ID verification add-ons
- Multi-party workflow routing: Sequential and parallel signing order support
- Mobile-optimized signer experience with the highest category brand recognition globally
Best For
DocuSign is the strongest fit for large organizations deploying eSignature through existing Salesforce, Microsoft 365, or Oracle environments where the primary users are business professionals sending contracts through a portal interface. U.S. federal agencies and government contractors with FedRAMP requirements benefit from DocuSign’s regulatory recognition. Organizations not yet on DocuSign that need a self-serve evaluation path will find Verdocs’ free tier and open-source SDKs a more accessible starting point before any commercial commitment.
Pricing
- Personal: $10/month, 5 envelopes/month, 1 user
- Standard: $25/user/month (annual), 100 envelopes/user/year
- Business Pro: $50/user/month (annual), 100 envelopes/user/year; adds SMS notifications and signer authentication
- Enterprise: Custom pricing via sales; advanced compliance, dedicated support, and volume terms
Additional services including SMS delivery and identity verification are available as per-use add-ons.
3. XiTrust MOXIS
XiTrust MOXIS is purpose-built for a specific, well-defined regulatory requirement: Qualified Electronic Signatures under eIDAS and ZertES. In the EU and Switzerland, QES carries the same legal weight as a handwritten signature. MOXIS enables organizations to issue QES at scale by integrating directly with multiple EU-accredited trust service providers, removing the need to build individual TSP integrations per member state.
MOXIS supports all three eIDAS signature levels from a single platform: Simple Electronic Signatures (SES), Advanced Electronic Signatures (AES), and Qualified Electronic Signatures (QES). For organizations issuing contracts, certificates, or regulated documents at high volume, qualified company seals provide organizational-level QES for bulk sealing workflows. Batch signing capabilities allow QES execution across multiple documents in a single authenticated transaction.
Native connectors for SAP, Adobe, OpenText, and SharePoint align MOXIS with the enterprise software stacks most prevalent in large European organizations. The platform handles user and role hierarchies, serial jobs, deputy rules, and Active Directory integration. A GDPR-compliant European private cloud addresses data residency requirements without additional configuration.
Key Features
Compliance and identity:
- eIDAS QES, AES, and SES: All three eIDAS signature levels from a single platform deployment
- Multiple EU-accredited trust service provider integrations: QES without building individual TSP integrations per member state
- ZertES compliance: Swiss regulatory framework support alongside eIDAS
- Qualified company seals: Organizational-level QES for high-volume regulated document issuance
- EU-wide legal recognition: Automatic recognition across all 27 EU member states
Workflow and enterprise integration:
- Batch signing: Execute QES on multiple documents in a single authenticated transaction
- Native connectors: SAP, Adobe, OpenText, and SharePoint
- User and role management: Role hierarchies, serial jobs, deputy rules, and Active Directory integration
- GDPR-compliant European private cloud: Data residency without additional configuration
Best For
XiTrust MOXIS is best suited for European enterprises in Germany, Austria, and across the EU with a direct eIDAS or ZertES QES compliance obligation. Financial institutions processing mortgage agreements, government agencies issuing legally binding digital documents, and enterprise HR platforms handling employment contracts across EU member states represent MOXIS’ primary buyers. Organizations requiring qualified company seals for bulk high-volume regulated document issuance will find that capability natively supported.
Pricing
Pricing is listed from approximately €29/user/month for unlimited SES (MOXIS NOW) and approximately €46/user/month for unlimited QES (MOXIS Business), though pricing varies by channel and region. Custom enterprise pricing is available for organizations requiring dedicated configuration, custom connectors, or extended SLA terms.
Who Should Choose Verdocs
Choose Verdocs if your team is building eSignature as a feature inside your own application. Verdocs is the best overall pick for development and product teams in this comparison. It offers the deepest embedding toolkit: 60+ native web components, open-source MIT SDK, free tier with full API access, SOC 2 Type 1 certification, and Microsoft Commercial Cloud certification.
Specific scenarios where Verdocs is the strongest fit:
- SaaS products with embedded signing: Fintech platforms, insurance portals, legal workflow tools, real estate software, and accounting applications where customers sign inside the product
- Microsoft Commercial Cloud environments: Teams building on SharePoint, Dynamics 365, Power Platform, or Teams who need certified embedded eSignature
- Developer-led procurement: Engineering teams evaluating eSign APIs who want open-source SDKs, free-tier testing, and MIT-licensed components they can inspect and extend
- White-label requirements: Agencies or platform builders who must deliver a fully branded signing experience with no third-party branding visible to end users
- ISV resale: Independent software vendors who want to embed and resell eSignature capability under their own brand
- Low-code to full-code flexibility: Teams that want to start with pre-built components and progressively customize toward a fully bespoke workflow
Who Should Choose DocuSign
Choose DocuSign if your organization’s primary use case is deploying signing through existing Salesforce, Microsoft 365, or Oracle environments without custom application development. DocuSign is the strongest fit for large enterprises where business users send contracts through a familiar portal interface and integration breadth across pre-existing software stacks matters more than embedded component control.
U.S. federal agencies and government contractors with FedRAMP compliance requirements benefit from DocuSign’s regulatory authorization. Organizations with European signing requirements can access AES and QES support via DocuSign’s trust service provider and ID verification options. Teams evaluating DocuSign without an existing enterprise software context should weigh Verdocs’ free developer tier and usage-based pricing as a lower-friction starting point for custom application workflows.
Who Should Choose XiTrust MOXIS
Choose XiTrust MOXIS if your organization operates in European markets where eIDAS or ZertES Qualified Electronic Signatures are a legal or compliance requirement. MOXIS is purpose-built for EU-regulated industries requiring native QES with EU-accredited trust service provider integration across multiple member states from a single platform deployment.
Financial institutions processing mortgage agreements, government agencies issuing legally binding digital documents, and enterprise HR platforms managing employment contracts across EU member states represent MOXIS’ strongest fit. The flat per-user pricing with no per-signature overage provides cost predictability for high-volume QES deployments. Organizations outside the EU requiring embedded in-app signing with a self-serve evaluation path will find Verdocs’ free developer tier a more direct fit.
Final Verdict
The XiTrust vs DocuSign vs Verdocs comparison comes down to the architecture of your signing workflow.
- Verdocs is the best choice for development teams building eSignature as a feature inside their own product. Its API-first design, 60+ native web components that embed without requiring iframes, open-source MIT-licensed SDKs, and full CSS white-label capability give engineering teams more control than any comparable platform in this comparison. The free tier with 25 envelopes per month makes it low-risk to evaluate. SOC 2 Type 1 certification, modular HSM integration, and KBA authentication cover regulated industry requirements globally. The Microsoft Commercial Cloud certification extends its reach into enterprise environments. Customer implementations (MRP Realty, Appcom, Foundations) span fintech, mobile, and operations use cases.
- DocuSign is the strongest option for large enterprises deploying signing through existing Salesforce, Microsoft 365, SAP, and Oracle environments. Its 1,000+ native integrations, 1.7 million customer base, and FedRAMP authorization make it the most recognized choice for portal-based enterprise workflows and U.S. federal compliance requirements.
- XiTrust MOXIS is the answer for European enterprises with eIDAS or ZertES Qualified Electronic Signature obligations. Native integration with multiple EU-accredited trust service providers, qualified company seal support, batch signing, and a GDPR-compliant European private cloud make it the compliance-first platform for a compliance-first requirement.
For product and engineering teams ready to build embeddable document workflows, start for free: 25 envelopes/month, no credit card required.
Frequently Asked Questions
What is the main difference between XiTrust, DocuSign, and Verdocs?
XiTrust MOXIS is a European enterprise platform purpose-built for Qualified Electronic Signatures under eIDAS and ZertES, with native EU-accredited trust service provider integrations and company seal support. DocuSign is the global market leader for enterprise portal workflows, with 1,000+ pre-built integrations and AES and QES support via trust service provider and ID verification options. Verdocs is an API-first embeddable eSignature platform built for development teams who need signing integrated directly into their own applications via native web components and open-source SDKs.
Does Verdocs offer a free plan?
Yes. Verdocs includes a free developer tier with 25 envelopes per month and no credit card required. Developers can access the Verdocs API and SDKs immediately to build and test embedded signing workflows before committing to a paid plan. Usage-based pay-as-you-go pricing applies beyond the free tier, and custom Pro and Platform plans are available for higher-volume or white-label requirements.
Does XiTrust MOXIS support Qualified Electronic Signatures?
Yes. XiTrust MOXIS supports QES as a native core feature under eIDAS and ZertES, integrating directly with multiple EU-accredited trust service providers. It supports the full eIDAS signature spectrum from SES through QES from a single platform deployment. DocuSign also supports AES and QES under eIDAS via trust service provider and ID verification options. Verdocs supports AES via partner integrations.
What makes Verdocs different from iframe-based solutions?
Verdocs ships 60+ native web components that embed signing inside your application without requiring iframes (iframes are also available when preferred). Native web components render inside your application’s DOM, accept your CSS variables and design tokens, and fire standard DOM events your existing handlers can consume. Traditional iframe-based solutions stop at the iframe boundary: your CSS cannot reach inside, your JavaScript cannot access the DOM, and the signing experience behaves like a third-party portal embedded in your page. Verdocs’ component-based approach means development teams own the complete user experience, including email templates, signing UI, and document certificates.
Which platform has the best developer API?
Verdocs has the most developer-friendly eSignature API in this comparison. It provides 60+ native web components with full CSS control across React, Angular, Vue, and vanilla JS, an open-source MIT SDK available on GitHub and npm, an isomorphic JS SDK that runs in both browser and Node.js environments, and a free tier with full REST API and webhook access requiring no credit card. A proof-of-concept is typically deployable in hours. DocuSign provides a broad API with 1,000+ pre-built connectors across enterprise platforms. XiTrust MOXIS provides REST API integration with native SAP, OpenText, and SharePoint connectors. Among the three, Verdocs is the most developer-first in architecture. See the Verdocs platform comparison for a full feature and capability breakdown.