Fast Agent Fast Agent
Fast Agent is an open-source Python framework designed for building and managing multimodal AI agents and workflows. It provides a CLI-first developer experience with comprehensive, end-to-end support for the Model Context Protocol (MCP) and various LLM providers.
Recent releases include support for new providers like DeepSeek, Moonshot, and Z.AI, enhanced container/Hugging Face sandbox isolation, and the introduction of advanced Agent Skills.
As of
- Full MCP 1.0 support including Sampling and Elicitations
- Declarative workflows including Chain, Parallel, Router, Orchestrator, and MAKER
- Multimodal input support for PDF, vision, audio, and video
- Rich, interactive terminal UI with live streaming and tool call visualization
- Advanced transport diagnostics for HTTP and SSE connections
Rapid prototyping of complex agentic workflows, research assistants, and coding agents that require deep MCP integration.
Production environments requiring high-frequency, hardened infrastructure-grade SLAs or air-gapped systems, as the project is still in pre-1.0 development.
The framework is licensed under the Apache License 2.0, permitting free commercial use and modification.
Fast Agent is an excellent, feature-rich tool for developers prototyping sophisticated, MCP-native multi-agent systems, though it should be monitored for breaking changes during its pre-1.0 phase.
Is Fast Agent free?
Yes - Fast Agent is Open Source. The framework is licensed under the Apache License 2.0, permitting free commercial use and modification.
Is Fast Agent open source?
Yes - Fast Agent is open source. The framework is licensed under the Apache License 2.0, permitting free commercial use and modification.
Who is Fast Agent best for?
Rapid prototyping of complex agentic workflows, research assistants, and coding agents that require deep MCP integration.
Who is Fast Agent not ideal for?
Production environments requiring high-frequency, hardened infrastructure-grade SLAs or air-gapped systems, as the project is still in pre-1.0 development.
What are the best Fast Agent alternatives?
The closest Fast Agent alternatives on ai.dosa.dev are Claude Code, Codex CLI, Amp - all listed under Terminal & CLI Agents.
Who makes Fast Agent?
Fast Agent is developed by EvalState. It is listed in the Terminal & CLI Agents category on ai.dosa.dev.
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