Agent Communication Protocol (ACP)The Linux Foundation
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Related Products
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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.
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About
FirstHelm is a control plane for AI agents. It sits between your agent fleet — n8n, OpenAI, Anthropic, CrewAI, LangChain, Microsoft Copilot Studio, or any custom agent via REST API — and the rest of the world, deciding what each agent is allowed to do, not just showing what it did. Every action is logged and checked in flight against your rules: budget caps, blocked actions, and per-mission cost and token visibility. Expensive, risky or irreversible actions are held for human approval, and unanswered approvals expire safely — silence is not consent. Live dashboards let you steer agents mid-mission, and FirstHelm generates audit trails and compliance exports mapped to the EU AI Act, ISO 42001, SOC 2, UK GDPR, NIST AI RMF and FCA expectations — 38 controls, scored live from your own data. Freemium, framework-agnostic, UK-built.
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Platforms Supported
Windows
Supported
Mac
Supported
Linux
Supported
Cloud
Not Supported
On-Premises
Supported
iPhone
Not Supported
iPad
Not Supported
Android
Not Supported
Chromebook
Not Supported
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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
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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
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Audience
Small Business, Mid Size Business and Enterprise
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Support
Phone Support
Not Supported
24/7 Live Support
Not Supported
Online
Not Supported
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Support
Phone Support
Not Supported
24/7 Live Support
Not Supported
Online
Supported
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API
Offers API
Not Supported
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API
Offers API
Supported
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Screenshots and VideosNo images available
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Screenshots and VideosNo images available
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Pricing
Free
Open source
Free Version
Supported
Free Trial
Not Supported
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Pricing
£23/user/month
The Free plan costs £0 per user per month and includes up to 2 agents and 1 active mission. Starter costs £23 per user per month, billed monthly, and includes up to 10 agents and 5 missions. Pro costs £79 per user per month, and Enterprise costs £399 per user per month. Annual billing is available with two months free per year. Prices are in GBP and exclude VAT. All plans are priced per user, with no per-agent fee. Enterprise includes UK/EEA data residency and a 99.9% SLA.
Free Version
Supported
Free Trial
Not Supported
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Reviews/
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Reviews/
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Training
Documentation
Supported
Webinars
Not Supported
Live Online
Not Supported
In Person
Not Supported
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Training
Documentation
Supported
Webinars
Not Supported
Live Online
Not Supported
In Person
Not Supported
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Company InformationThe Linux Foundation
agentcommunicationprotocol.dev/
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Company InformationFirstHelm
Founded: 2026
United Kingdom
firsthelm.dev
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Categories |
Categories |
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Integrations
CrewAI
Supported
LangChain
Supported
Anthropic
Not Supported
AutoGen
Not Supported
Botpress
Not Supported
Brief
Supported
Flowise
Not Supported
Gumloop
Not Supported
IBM watsonx Orchestrate
Not Supported
Lindy
Not Supported
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Integrations
CrewAI
Supported
LangChain
Supported
Anthropic
Supported
AutoGen
Supported
Botpress
Supported
Brief
Not Supported
Flowise
Supported
Gumloop
Supported
IBM watsonx Orchestrate
Supported
Lindy
Supported
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