Can you self-host Agent Frameworks tools?

16 of the 21 we track have a public repository: Hermes Agent (MIT), AutoGen (CC-BY-4.0), CrewAI (MIT), Goose (Block) (Apache-2.0), Agno (Apache-2.0), LangGraph (MIT), and 10 more. Licence matters more than the label — check whether the licence covers the production server as well as the library.

Can you use Agent Frameworks tools for free?

Published monthly prices run from $10 to $150, averaging about $51/month across 12 tools that publish a figure. 14 offer a free tier. The rest quote contact-sales or usage-based pricing, where the sticker price matters less than your usage volume.

How fast do Agent Frameworks tools change?

Most recent commits among the open-source options: Hermes Agent (2026-09-27), PydanticAI (2026-09-27), Agency Swarm (2026-09-27). A quiet repository isn't automatically a problem — a stable library needs fewer commits than a young one — but a year of silence is worth asking about.

Agent Development Frameworks

Orchestration code for multi-step agents: planners, tool routers, memory managers, multi-agent runtimes. 21 tracked on AgentsIndex, with pricing and licences checked.

21 listed14 free16 open sourceavg $61/month

Reviewed by AgentsIndex · Updated Sep 24, 2026

The Agent Frameworks catalog on AgentsIndex lists 21 tools built for this job. Most are built for developers, engineers, mid-market teams. It is one of the more open categories on the index: 16 of 21 publish a licence you can read, against 24% across the directory. The code here moves quickly: 15 of 21 shipped a release in the last 90 days, so anything you read about it dates fast.

Agent Frameworks compared

The 10 most-used tools in this category, by published pricing. Everything we know about each one is on its listing.

Tool	Price from	Free tier	Deployment & compliance
AutoGen	Not stated	Not stated	Open Source
CrewAI	$99/mo	Yes	Self-Hosted · Open Source
Goose (Block)	$10/mo	Yes	BYOK · Open Source
Agno	$150/mo	Yes	Self-Hosted · Open Source
LangGraph	$29/mo	Yes	Open Source · Self-Hosted
Semantic Kernel	Free	Yes	Open Source
Letta	$20/mo	Yes	—
Google ADK	Free	Yes	Self-Hosted
PydanticAI	$29/mo	Yes	Open Source
Botpress	$150/mo	Yes	GDPR · SOC 2

Pragor

Operational control plane for AI-agent teams with approvals and audit trails.

Agent Frameworks

API

Pragor coordinates AI-agent work with approvals, audit trails, and scheduling. Plans start free, with Solo at €21.75/month.

Orkas

Local-first desktop workspace for coordinated AI agents and reviewed deliverables.

Agent Frameworks

Orkas coordinates AI agents in a local-first workspace with Commander scheduling, reusable skills, and model flexibility. Plans start Free.

Hermes Agent

Open-source AI workspace for chat, email, and terminal workflows.

Agent Frameworks

Open source

Hermes Agent connects chat, email, and terminal workflows, with Persistent Memory, Focused Automation, and 300+ models through Nous Portal.

Dust

AI agents connected to company data and tools.

Agent Frameworks

Open sourceAPI

Dust connects AI agents to company data and tools, with Team orchestration, API access, and Pro seats at €30/month.

CAMEL-AI

Open-source framework for code-first, stateful agent workflows.

Agent Frameworks

Open source

CAMEL-AI is an open-source agent framework for code-first orchestration, with Workforce, Connect to RL, and MCP support.

AutoGen

Framework for prototyping and shipping multi-agent apps.

Agent Frameworks

Open sourceAPI

AutoGen builds multi-agent apps with Studio, AgentChat, Core, and Extensions; supports Python,.NET, Docker, and gRPC worker runtimes.

Agent.ai

A marketplace for discovering and combining AI agents into workflows.

Agent Frameworks

Agent.ai lets teams combine AI agents for research, outreach, and follow-up. Pro costs $25/mo.

Vertex AI Agent Builder

Google Cloud platform for building and governing enterprise AI agents.

Agent Frameworks

API

Vertex AI Agent Builder builds and governs enterprise AI agents, with BigQuery, Pub/Sub, and API integration. Plans: Free, Pay as you go, Custom.

Goose (Block)

A local AI agent for code, research, writing, and automation.

Agent Frameworks

Open source

Goose (Block) runs local AI workflows with 70+ MCP extensions, Recipes, and subagents across desktop, CLI, and API.

Letta

Stateful memory platform for building persistent LLM agents

Agent Frameworks

Open source

Letta is an agent framework for developers to add memory and state to LLMs, helping build persistent, self-improving agents.

LangGraph Platform

Deploy and govern production agents with tracing, evals, and APIs.

Agent Frameworks

API

LangGraph Platform deploys production agents with tracing, evals, Fleet, and one-click APIs. Plans start at $0/seat/month.

Botpress

AI agent building and support automation with Studio, Desk, and Knowledge Bases.

Agent Frameworks

Open sourceAPI

Botpress builds AI agents with Studio, Desk, and Knowledge Bases. Plans start at Free $0, then Plus $150/mo.

Swarms

Multi-agent AI operations through one API and workflow layer.

Agent Frameworks

Open source

Swarms routes multi-agent workflows through one API, with telemetry, marketplace access, and Pro at $19.99/month.

Agency Swarm

Open-source framework for coordinating agent roles, prompts, and tools.

Agent Frameworks

Open sourceAPI

Agency Swarm coordinates multi-agent workflows with custom roles, prompt control, and FastAPI integration. It has 4,392 GitHub stars.

Agno

Python agent framework and runtime with FastAPI scaffolding.

Agent Frameworks

Open sourceAPI

Agno builds and runs AI agents with FastAPI scaffolding, tracing, and evaluations. Plans run Free, Pro $150/mo, and Enterprise custom.

PydanticAI

Typed agent workflows with explicit tools, hooks, and validation.

Agent Frameworks

Open source

PydanticAI builds typed agent workflows with Pydantic models, Function Tools, and Hooks, with integrations across OpenAI, Anthropic, and LangChain.

Haystack

Open-source AI pipelines with explicit control over retrieval, tools, and memory.

Agent Frameworks

Open sourceAPI

Haystack is an open-source AI orchestration framework for modular pipelines, advanced RAG, and agents. Used by NVIDIA and AWS.

Google ADK

Agent framework for building and running production agents.

Agent Frameworks

Open source

Google ADK builds and runs production agents with graph-based workflows, Components, and a Visual Builder. Google Cloud is a named user.

Semantic Kernel

A framework that turns prompts and APIs into function calls.

Agent Frameworks

Open sourceAPI

Semantic Kernel turns prompts and APIs into function calls for AI agents, with C#, Python, and Java support.

CrewAI

Orchestrate collaborative AI agent workflows with visual control and APIs.

Agent Frameworks

Open sourceAPI

CrewAI orchestrates AI agents with visual workflows, tracing, and a REST API. Pro Plan is $99/month; Enterprise is custom.

LangGraph

Framework for reliable AI agents with low-level control.

Agent Frameworks

Open sourceAPI

LangGraph builds reliable AI agents with Observability and Evaluation, starting Free and scaling to Pro at $99/month.

Agent Development Frameworks

Agent Frameworks compared

About Agent Frameworks on AgentsIndex

Can you self-host Agent Frameworks tools?

Can you use Agent Frameworks tools for free?

How fast do Agent Frameworks tools change?