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SPECIFICTION
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emSigner API

emsigner.com

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Spec score 8.4 #9 of 28 in Digital Signature API Software

Spec sheet

Purpose
The REST API lets organizations send document-signing requests to emSigner through API endpoints.Read 2 Oct 2026 · support.emsigner.com
Intended users
The maker describes emSigner as a secure eSignature workflow solution for companies of different sizes and for workflows involving employees, vendors, and customers.Read 2 Oct 2026 · developers.emsigner.com
Integrations
The maker names Salesforce and SAP connectors and describes using outbound REST calls from CRM or ERP systems.Read 2 Oct 2026 · developers.emsigner.com
Support
The API pricing page lists 24x7 support with a response-time SLA under 12 hours.Read 2 Oct 2026 · qa-core.emsigner.com
Headquarters
Bengaluru, Karnataka, IndiaRead 28 Sep 2026 · emsigner.com
Founded
2008Read 28 Sep 2026 · emsigner.com
API structure
API endpoints cover user management, workflow management, and document management, and requests use JWT authentication.Read 2 Oct 2026 · support.emsigner.com
Encryption
The trust center states that stored PII and documents are encrypted with AES-256 and API communications use HTTPS/TLS 1.2 or higher.Read 2 Oct 2026 · developers.emsigner.com
Envelope billing
API pricing is based on envelopes consumed and successful signing transactions in which all parties sign the included documents.Read 2 Oct 2026 · support.emsigner.com
Envelope size
An envelope can include up to 10 documents with a total file size of 25 MB.Read 2 Oct 2026 · support.emsigner.com
Hosting and deployment
The API and Gateway are available in AWS-hosted cloud with multiple-region data residency, and the maker says it also supports on-premise deployments.Read 2 Oct 2026 · developers.emsigner.com
Security certifications
The trust center lists SOC 2 Type II, ISO 27001:2022, and ISO 27018:2014 certifications.Read 2 Oct 2026 · developers.emsigner.com
Signature types
The API supports Simple, Advanced, and Qualified Electronic Signatures.Read 2 Oct 2026 · developers.emsigner.com
Signing controls
API workflows can use signature placeholders placed by coordinates or search text and can include signatories, reminders, PDF protection, and watermarks.Read 2 Oct 2026 · support.emsigner.com
Trial and sandbox
The pricing page describes a 30-day free trial, while the developer center says demo or sandbox access requires contacting emSigner.Read 2 Oct 2026 · qa-core.emsigner.com

Plans and prices

Professional API envelope plan $0.99, paid once USD 0.99 /envelope; envelopes are valid for one year professional plan · API access · envelope is valid for one year Read 2 Oct 2026 · qa-core.emsigner.com
Essential $1, paid once USD 1 /envelope API envelope pricing shown alongside Essential · API features are listed under Professional Read 2 Oct 2026 · qa-core.emsigner.com
Professional Priced on request For Pricing Contact Us Large teams · automation · integrations · enterprise security Read 2 Oct 2026 · qa-core.emsigner.com

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