GoSign

GoSign

Founding Dev
+
+

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About

GoSign is a flat-rate electronic signature platform designed as a scalable alternative to DocuSign. Moving away from restrictive per-envelope or per-seat pricing, GoSign charges a flat fee with absolutely no usage caps. Teams can manage unlimited documents, templates, and users without worrying about surprise costs. Built for flexibility and security, the platform offers  REST API, webhooks, SSO, OAuth, and custom branding on its premium tiers. For regulated industries requiring HIPAA or SOC2 compliance, GoSign also supports self-hosted deployments on AWS, GCP, or private clouds. Created by Founding.dev, GoSign is the ideal high-volume contract solution for legal, HR, sales, real estate, SaaS startups, and freelancers alike

About

Sendmux gives AI agents their own inbox and a controlled way to send email. Each agent can receive messages, read threads, handle attachments, send replies, and react to new mail through signed webhooks or Server-Sent Events. Teams can send through Gmail OAuth, Outlook OAuth, SMTP providers, or managed Amazon SES. Sendmux can spread sending across providers with weighted routing, sender-domain routing, health checks, failover, and quotas by second, minute, hour, or day. Developers get Mailbox, Sending, and Management APIs, OpenAPI docs, SDKs, the sendmux CLI, MCP tools, and Sendmux Skills. The platform also covers tenant isolation, mailbox-scoped API keys, custom domains, logs, metrics, and usage-based pricing with no per-seat or per-mailbox fees.

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Legal teams, HR professionals, sales teams, real estate agents, SaaS startups, freelancers, insurance agents, mortgage brokers, and any organization that sends high volumes of contracts.

Audience

AI agent builders that need an email API for AI agents

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Supported
24/7 Live Support Supported
Online Supported

API

Offers API Not Supported

API

Offers API Supported

Screenshots and Videos

Screenshots and Videos

Pricing

$9/month
Free Version Supported
Free Trial Not Supported

Pricing

$0.15 per 1000 emails
Free Version Supported
Free Trial Not Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Supported
In Person Supported

Company Information

Founding Dev
Founded: 2025
gosign.work/

Company Information

Sendmux
Founded: 2026
Australia
sendmux.ai

Alternatives

Alternatives

EmailLabs

EmailLabs

Vercom
SendPost

SendPost

SendWorks
Mail360

Mail360

Zoho

Categories

Digital Signature Supported

Categories

Agentic AI Supported
Email APIs Supported

Digital Signature Features

Audit Trail Supported
Authentication Supported
Auto Reminders Not Supported
Customizable Templates Not Supported
Document Analytics Supported
Mobile Signature Supported
Multi-Party Signing Supported
Progress Tracking Supported
Task Progress Tracking Not Supported

Integrations

Zapier Supported
Airtable Supported
Claude Not Supported
Codex CLI Not Supported
FetchSandbox Not Supported
Gmail Not Supported
Google Drive Supported
LangChain Not Supported
Microsoft 365 Supported
Microsoft Outlook Not Supported
Model Context Protocol (MCP) Not Supported
Notion Supported
Python Not Supported
Ruby Not Supported
Slack Not Supported
Vercel AI SDK Not Supported
n8n Not Supported

Integrations

Zapier Supported
Airtable Not Supported
Claude Supported
Codex CLI Supported
FetchSandbox Supported
Gmail Supported
Google Drive Not Supported
LangChain Supported
Microsoft 365 Not Supported
Microsoft Outlook Supported
Model Context Protocol (MCP) Supported
Notion Not Supported
Python Supported
Ruby Supported
Slack Supported
Vercel AI SDK Supported
n8n Supported
Claim GoSign and update features and information
Claim GoSign and update features and information
Claim Sendmux and update features and information
Claim Sendmux and update features and information