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About

Chert is iMessage infrastructure for reaching people at scale, providing the API and workflow layer for sending, receiving, routing, and observing real iMessage conversations. It lets teams build and deploy AI on iMessage while maintaining quality, trust, and personalized interaction, with blue-bubble threads from verified numbers delivered like native iMessage. Typing indicators, reactions, reply context, read receipts, and attachments stay intact for AI or human follow-up, while multi-recipient threads support named senders and clean handoffs. If a recipient is not on iMessage, conversations can fall back to SMS or RCS, with delivery status surfaced per message. Workflow primitives include phone number pools, reply routing, webhooks, and audit trails, and the same API can start a thread, interpret a reply, and move the workflow forward.

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
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Audience

GTM, sales, support, lifecycle, and product teams in search of a tool to automate trusted iMessage conversations and turn customer replies into actions

Audience

AI agent builders that need an email API for AI agents

Support

Phone Support
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

API

Offers API

API

Offers API

Screenshots and Videos

Screenshots and Videos

Pricing

Free
Free Version
Free Trial

Pricing

$0.15 per 1000 emails
Free Version
Free Trial

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
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

Chert
United States
www.trychert.com

Company Information

Sendmux
Founded: 2026
Australia
sendmux.ai

Alternatives

Alternatives

EmailLabs

EmailLabs

Vercom
LoopMessage

LoopMessage

Deliany LLC
SendPost

SendPost

SendWorks
Mail360

Mail360

Zoho
Sent

Sent

Sent.dm

Categories

Categories

Integrations

Slack
Attio
Claude
Close
Codex CLI
FetchSandbox
Gmail
GoHighLevel
HubSpot CRM
LangChain
Microsoft Outlook
Model Context Protocol (MCP)
Python
Ruby
Salesforce
Vapi AI
Vercel AI SDK
Zapier
iMessage
n8n

Integrations

Slack
Attio
Claude
Close
Codex CLI
FetchSandbox
Gmail
GoHighLevel
HubSpot CRM
LangChain
Microsoft Outlook
Model Context Protocol (MCP)
Python
Ruby
Salesforce
Vapi AI
Vercel AI SDK
Zapier
iMessage
n8n
Claim Chert and update features and information
Claim Chert and update features and information
Claim Sendmux and update features and information
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