Agent BuilderOpenAI
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Related Products
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About
MagicBlocks is an Autonomous Relationship Sales Platform for brands, agencies, and marketers who want AI that sells, not just chats.
MagicBlocks agents carry real memory: they remember every customer’s history, preferences, behaviour, and past conversations across channels. Using our CDP-native memory engine and dynamic journey engine, they choose the next best step — without forcing teams to build endless flows.
Each agent is powered by HAPPA, a behavioural sales framework developed from $200M+ in lead-gen experience. This gives them actual salesmanship: they hook attention, align to needs, personalise the pitch, handle objections, and drive action — just like a top rep.
Conversations don’t reset. Journeys don’t break. Intent doesn’t get lost.
With omnichannel continuity across chat, SMS, email, and DMs, MagicBlocks helps businesses nurture, convert, activate, expand, and win back customers at scale — without scaling headcount.
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About
Agent Builder is part of OpenAI’s tooling for constructing agentic applications, systems that use large language models to perform multi-step tasks autonomously, with governance, tool integration, memory, orchestration, and observability baked in. The platform offers a composable set of primitives—models, tools, memory/state, guardrails, and workflow orchestration- that developers assemble into agents capable of deciding when to call a tool, when to act, and when to halt and hand off control. OpenAI provides a new Responses API that combines chat capabilities with built-in tool use, along with an Agents SDK (Python, JS/TS) that abstracts the control loop, supports guardrail enforcement (validations on inputs/outputs), handoffs between agents, session management, and tracing of agent executions. Agents can be augmented with built-in tools like web search, file search, or computer use, or custom function-calling tools.
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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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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
Agencies & Consultants, PLG SaaS, Marketers & Growth Teams, Founders & Operator, High-Ticket Sales Teams, Ecommerce (High AOV)
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Audience
Developers and engineering teams in search of a tool for composing workflows, integrating tools, managing memory, and observing behavior in their agentic systems
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Support
Phone Support
Not Supported
24/7 Live Support
Not Supported
Online
Supported
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Support
Phone Support
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 Videos |
Screenshots and Videos |
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Pricing
$89/month
Free – $0/mo: 1 Agent, 200 messages, AI & community support (Freemium)
Standard – $89/mo: 2 Agents, 3,000 messages, all channels Plus – $199/mo: 5 Agents, 10,000 messages Pro – $799/mo: 15 Agents, 80,000 messages, Slack support
Free Version
Supported
Free Trial
Not Supported
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Pricing
No information available.
Free Version
Not 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
Supported
In Person
Supported
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Company InformationMagicBlocks
Founded: 2024
Australia
magicblocks.ai/
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Company InformationOpenAI
Founded: 2015
United States
platform.openai.com/docs/guides/agent-builder
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Alternatives |
Alternatives |
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Categories |
Categories |
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Integrations
AgentKit
Not Supported
Calendly
Supported
ChatKit
Not Supported
GoHighLevel
Supported
JavaScript
Not Supported
Model Context Protocol (MCP)
Not Supported
OpenAI
Not Supported
PydanticAI
Not Supported
Python
Not Supported
TypeScript
Not Supported
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Integrations
AgentKit
Supported
Calendly
Not Supported
ChatKit
Supported
GoHighLevel
Not Supported
JavaScript
Supported
Model Context Protocol (MCP)
Supported
OpenAI
Supported
PydanticAI
Supported
Python
Supported
TypeScript
Supported
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