LibreAI / KI-Agenten / fast-agent
// agents · evalstate/fast-agent

fast-agent

fast-agent ist ein Open-Source-Projekt aus der Kategorie KI-Agenten von evalstate (evalstate/fast-agent auf GitHub). Es hat 3.928 Sterne auf GitHub und 446 Forks, wird unter der Lizenz Apache-2.0 veröffentlicht und wurde zuletzt am 8. Oktober 2026 auf GitHub aktualisiert.

Code, build and evaluate LLM agents with full MCP, Skills, ACP and A2A support.

★ 3,9 Tsd. Sterne⑂ 446 ForksApache-2.0aktualisiert Okt 2026
▦ Visual — das README dieses Projekts enthält keinen einbettbaren Screenshot,
darum hier ein Platzhalter. Die Anleitung unten ist trotzdem vollständig.
// projektdaten

Projektdaten

GitHub-Sterne
3.928
Forks
446
Lizenz
Apache-2.0
Zuletzt auf GitHub aktualisiert
8. Oktober 2026
Kategorie
KI-Agenten
Eintragstyp
Vollständige Installationsanleitung
Offizielle Website
Official site
// so funktioniert es

So funktioniert es

  1. Clarify your goal

    Decide the first concrete outcome you want from it, so you can pick the right example, template or mode instead of exploring everything at once.

  2. Get the project

    Clone the repository (or install the published package) and skim its README quick start for the requirements for your platform.

  3. Install and configure

    Run the documented install step and set any required configuration — such as provider keys, data sources or local services — before the first run.

  4. Run your first task

    Execute the smallest documented example end to end, confirm the output is what you expected, then adapt it to your real data or workflow.

// funktionen

Warum es so beliebt ist

Complete MCP support

End-to-end tested MCP features including Sampling and Elicitations, plus MCP Apps and the OpenAI Apps SDK.

Agent Skills

SKILL.md-based skills managed with the /skills command, with a built-in registry covering LSP, hooks, compaction and automation.

Built-in workflows

Chain, Parallel, Router, Orchestrator, Evaluator-Optimizer, MAKER and Agents-as-Tools patterns ready to compose.

Interactive shell mode

Run shell commands with ! inside the session and connect to MCP servers with /connect over stdio or streamable HTTP with OAuth.

Multimodal and structured outputs

Vision, PDF and structured-output support, well tested across providers.

ACP and A2A ready

Any setup can run inside ACP clients via fast-agent-acp, with A2A support for agent-to-agent work.

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// selbst ausführen

Führe es selbst aus

  1. Clone the repository

    Get the source so you can inspect, configure and run it locally.

    git clone https://github.com/evalstate/fast-agent.git
    cd fast-agent
  2. Install fast-agent

    Install the package as a uv tool so the CLI and shell aliases are available.

    uv tool install -U fast-agent-mcp
  3. Start an interactive session

    Launch with shell support and a model of your choice, then connect MCP servers with /connect.

    fast-agent --model opus -xx  # or quick-try: uvx fast-agent-mcp@latest -x
// anwendungsfälle

Was du damit bauen kannst

Readers working through the AI Agents shelf also stop at Guardrails, Programmable guardrails to keep LLM systems safe and on rails. Also on this shelf: council-of-high-intelligence — Convene 18 legendary thinkers as an AI council that debates your hardest questions — inside Claude Code. Readers working through the AI Agents shelf also stop at AP2, an open protocol for secure AI-driven payments.

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// häufige fragen

Häufige Fragen

Who maintains fast-agent?

It is maintained by evalstate on GitHub (evalstate/fast-agent), where the source, issues and releases live.

Is it free to use?

Yes — it is free and open source under Apache-2.0, which permits use, modification and commercial redistribution, with licence/notice retention.

Does it need a paid API key?

Yes — most use needs your own LLM provider key (Anthropic, OpenAI, Google or another supported provider), unless you point it at a local model via Ollama or llama.cpp.

How does it compare to LangChain or the OpenAI Agents SDK?

Compared with LangChain or the OpenAI Agents SDK, fast-agent's distinguishing focus is: code, build and evaluate LLM agents with full MCP, Skills, ACP and A2A support. Pick it when that focus matches your need; the alternative may suit you better if its broader or different scope is the priority.

How do I get started?

Clone https://github.com/evalstate/fast-agent (or install its published package), follow the README quick start to install and configure it, then run the smallest documented example — the Run section on this page mirrors those steps.

// weiter entdecken

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// alternativen

Alternativen im Bereich KI-Agenten

Die anderen Projekte der Kategorie KI-Agenten mit den meisten Sternen im LibreAI-Katalog — die realistische Auswahl, falls fast-agent nicht das Richtige ist.

// mehr in agents

Mehr in KI-Agenten

Verwandte Projekte der Kategorie KI-Agenten im Katalog, die fast-agent bei den Sternen am nächsten stehen — zum Weiterstöbern auf beiden Seiten.

Hol dir fast-agent

Kostenlos und offen — hol dir den Quellcode, gib dem Repository einen Stern und leg los.