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Fast-Agent
by evalstate
High-performance framework for building coding agents and AI workflows with full MCP support.
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Works in:CursorCodexGoose
Exposes:ToolsResourcesPrompts
What it does
Fast-Agent is a developer-centric framework designed to build, evaluate, and deploy sophisticated AI agents and workflows. It bridges the gap between LLMs and real-world execution by providing first-class support for the Model Context Protocol (MCP) and Agent Context Protocol (ACP), allowing agents to seamlessly interact with external tools and systems.
Tools
- Agent Orchestration: Create complex workflows using Chains, Parallel fan-out, and Evaluator-Optimizer patterns.
- MCP Client/Server: Native support for stdio and HTTP transports, including OAuth and sampling.
- MAKER: Implements k-voting error reduction to ensure high reliability in long agentic processes.
- Shell Integration: Interactive TUI and shell support for real-time coding and system interaction.
Installation
Install using uv:
uv tool install -U fast-agent-mcp
To use as an MCP server, run with the --transport flag:
{
"mcpServers": {
"fast-agent": {
"command": "fast-agent",
"args": ["--transport", "stdio"]
}
}
}
Supported hosts
- Claude Desktop
- Cursor
- Codex
- Goose
Quick install
uv tool install -U fast-agent-mcpInformation
- Pricing
- free
- Published
- 4/16/2026
