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About

The Agent Communication Protocol (ACP) is an open interoperability standard designed to enable seamless communication between AI agents, applications, and human users. It provides a standardized RESTful API that supports synchronous and asynchronous interactions, streaming communication, long-running tasks, and both stateful and stateless operations. ACP is framework-agnostic, allowing agents built with technologies such as BeeAI, LangChain, CrewAI, or custom solutions to work together without requiring changes to their internal architecture. The protocol supports all content modalities through MimeTypes, making it flexible enough to handle text, images, audio, video, and custom data formats. ACP also includes capabilities for online and offline agent discovery, helping organizations find and connect compatible agents across different environments.

About

OpenMail gives AI agents a dedicated email address. Provision an inbox with one CLI command or API call, each agent gets its own address, not a shared inbox or forwarding alias. Inbound email arrives instantly via webhook or WebSocket, parsed and threaded, with no polling required. Replies land in context so agents can respond without any new interface on the human side. Attachments: PDFs, CSVs, images, spreadsheets, Word documents are automatically converted to LLM-ready text; the agent never touches raw MIME. The API is small by design: one call to provision, standard calls to send, webhooks or WebSocket to receive. Integrates with LangChain, n8n, Make, Vercel AI SDK, and OpenClaw. Custom domains supported. Runs in the EU, GDPR-covered, 99.9% uptime SLA, SOC 2 in progress.

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

ACP is designed for AI developers, software engineers, technology teams, and organizations building, integrating, or managing interoperable AI agents across multiple platforms and frameworks

Audience

Developers, AI agent companies, software companies innovating with agentic technology

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

No images available

Screenshots and Videos

No images available

Pricing

Free
Free Version
Free Trial

Pricing

9 EUR
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

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Reviews/Ratings

Overall 5.0 / 5
ease 4.0 / 5
features 5.0 / 5
design 5.0 / 5
support 5.0 / 5

Training

Documentation
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

The Linux Foundation
agentcommunicationprotocol.dev/

Company Information

OpenMail
Founded: 2026
Lithuania
Openmail.sh

Alternatives

Alternatives

Mailsac

Mailsac

Forking Software
LangGraph

LangGraph

LangChain
Sweego

Sweego

Mindbaz

Categories

Categories

Integrations

LangChain
Brief
CrewAI
Make
Model Context Protocol (MCP)
OpenClaw
Python
TypeScript
Vercel
n8n

Integrations

LangChain
Brief
CrewAI
Make
Model Context Protocol (MCP)
OpenClaw
Python
TypeScript
Vercel
n8n
Claim Agent Communication Protocol (ACP) and update features and information
Claim Agent Communication Protocol (ACP) and update features and information
Claim OpenMail and update features and information
Claim OpenMail and update features and information