# Agent Search Engine

> Independent, hand-curated search engine and directory for AI agents, MCP servers, and agent frameworks — 248 tools across 11 categories, with honest, data-derived comparisons. Rankings are never sold; sponsored placements are always labeled and never numbered.

Agent Search Engine indexes 248 AI agents and related tools. Each listing records the pricing model, GitHub adoption (stars, primary language, license, last commit), a plain-English "best for / avoid if", and links to alternatives and head-to-head comparisons. Coverage spans coding agents, MCP servers, voice agents, autonomous agents, browser agents, agent frameworks, and the infrastructure around them. Data is curated by hand and refreshed from public GitHub signals.

This file follows the llms.txt convention (https://llmstxt.org). For the complete directory in a single document, see https://agentsearchengine.app/llms-full.txt.

## Categories

- [MCP Servers](https://agentsearchengine.app/category/mcp-servers): 28 tools — Model Context Protocol servers that connect AI agents to tools, APIs, and data sources.
- [Agent Frameworks](https://agentsearchengine.app/category/agent-frameworks): 32 tools — Open-source frameworks and SDKs for building, orchestrating, and deploying AI agents.
- [Coding Agents](https://agentsearchengine.app/category/coding-agents): 37 tools — AI agents that write, review, refactor, and ship code autonomously or as pair programmers.
- [Autonomous Agents](https://agentsearchengine.app/category/autonomous-agents): 21 tools — General-purpose agents that plan and execute multi-step tasks with minimal supervision.
- [Browser & Computer Use](https://agentsearchengine.app/category/browser-agents): 20 tools — Agents that operate web browsers and computers to automate real-world tasks.
- [Voice Agents](https://agentsearchengine.app/category/voice-agents): 29 tools — AI agents that hold real-time voice conversations for calls, support, and assistants.
- [Research & Data Agents](https://agentsearchengine.app/category/research-agents): 27 tools — Agents that search, analyze, and synthesize information, documents, and data.
- [Workflow & Productivity](https://agentsearchengine.app/category/workflow-agents): 22 tools — Agent platforms that automate business workflows, ops, and everyday productivity.
- [Customer Support Agents](https://agentsearchengine.app/category/support-agents): 5 tools — AI agents that resolve customer conversations across chat, email, and phone.
- [Sales & Marketing Agents](https://agentsearchengine.app/category/sales-agents): 4 tools — Agents that prospect, qualify, personalize outreach, and run marketing tasks.
- [Agent Infrastructure](https://agentsearchengine.app/category/agent-infrastructure): 23 tools — Gateways, routers, registries, and runtimes that agent and MCP stacks run on.

## Browse and compare

- [Full A–Z index](https://agentsearchengine.app/agents): every indexed tool
- [Use-case guides](https://agentsearchengine.app/use): task-first shortlists ("pick a coding agent", "build a voice receptionist", "research the web with citations"…)
- [Best-of collections](https://agentsearchengine.app/best): ranked open-source and best-by-language lists
- [Head-to-head comparisons](https://agentsearchengine.app/compare): X vs Y matchups
- [Alternatives](https://agentsearchengine.app/alternatives): "{tool} alternatives" pages
- [Changelog](https://agentsearchengine.app/changelog): recently active projects and weekly star movers
- [Methodology](https://agentsearchengine.app/methodology): how the index is built, verified, and monetized

## Stack guides

Opinionated, index-backed guides to building each kind of agent — the real trade-offs, layer by layer.
- [How to build a RAG knowledge assistant](https://agentsearchengine.app/guides/rag-stack): Platform or compose-it-yourself, then the seven layers — ingestion, chunking, vector store, retrieval, orchestration, memory, and eval.
- [How to build a voice AI agent](https://agentsearchengine.app/guides/voice-stack): Latency is the tyrant. Platform vs compose, then telephony, speech-to-text, the LLM, text-to-speech, turn-taking, and testing.
- [How to build a coding agent](https://agentsearchengine.app/guides/coding-agent-stack): Adopt an agent or build your own harness, then the layers — the agent loop, code context, safe execution, the model, memory, and review.
- [How to build a browser-automation agent](https://agentsearchengine.app/guides/browser-automation-stack): Perception is the hard part, not clicking. DOM vs vision vs VLA, then the runtime, the driver, the model, planning, and reliability.
- [How to build an autonomous agent](https://agentsearchengine.app/guides/autonomous-agent-stack): Autonomy is a control problem, not a capability problem. Adopt, build, or hand-roll — then framework, tools, memory, execution, orchestration, and governance.
- [How to build an MCP server](https://agentsearchengine.app/guides/mcp-server-stack): The protocol is trivial; tool design is the craft. Wrap, build, or aggregate — then SDK and transport, tool design, resources, reliability, and distribution.
- [The self-hosted agent stack](https://agentsearchengine.app/guides/self-hosted-agent-stack): Run agents on your own infrastructure. What you're actually protecting, the platform, the model question, safe execution, data, and boring ops.
- [How to choose an agent framework](https://agentsearchengine.app/guides/choose-agent-framework): Do you need one at all? The five archetypes — code-first, role-based, typed, TypeScript-native, visual — and the criteria that actually predict regret.
- [How to build AI workflow automation](https://agentsearchengine.app/guides/workflow-agent-stack): Most “agents” should be workflows with LLM steps. Triggers, the engine, the LLM step, approval gates, reliability — and when to graduate to an agent loop.

## Data reports

Aggregate statistics over the whole index, recomputed from live data. Free to quote and cite with attribution (CC BY 4.0).
- [The State of AI Agents](https://agentsearchengine.app/reports/state-of-ai-agents): How the open agent ecosystem actually breaks down — open source vs commercial, the Python/TypeScript split, which categories are crowded, and what is accelerating right now.

## Complete corpus

- [/llms-full.txt](https://agentsearchengine.app/llms-full.txt): every listing — description, pricing, adoption stats, and links — in one fetch.

## Most-adopted tools

- [n8n](https://agentsearchengine.app/agents/n8n): Fair-code workflow automation platform with native AI capabilities. Combine visual building with custom code, self-host or cloud, 400+ integrations. — Open source · Platform · 202k★ · TypeScript · active 7 days ago
- [AutoGPT](https://agentsearchengine.app/agents/autogpt): AutoGPT is the vision of accessible AI for everyone, to use and to build on. Our mission is to provide the tools, so that you can focus on what matters. — Open source · Agent · 187k★ · Python · active 8 days ago
- [firecrawl](https://agentsearchengine.app/agents/firecrawl): The API to search, scrape, and interact with the web at scale. — Open source · Infrastructure · 171k★ · TypeScript · AGPL-3.0 · active 8 days ago
- [dify](https://agentsearchengine.app/agents/dify): Production-ready platform for agentic workflow development. — Open source · Platform · 153k★ · TypeScript · active 7 days ago
- [langchain](https://agentsearchengine.app/agents/langchain): The agent engineering platform. — Open source · Framework · 145k★ · Python · MIT · active 7 days ago
- [browser-use](https://agentsearchengine.app/agents/browser-use): Make websites accessible for AI agents. Automate tasks online with ease. — Open source · Agent · 110k★ · Python · MIT · active 9 days ago
- [gemini-cli](https://agentsearchengine.app/agents/gemini-cli): An open-source AI agent that brings the power of Gemini directly into your terminal. — Open source · Agent · 107k★ · TypeScript · Apache-2.0 · active 8 days ago
- [ragflow](https://agentsearchengine.app/agents/ragflow): RAGFlow is a leading open-source Retrieval-Augmented Generation (RAG) engine that fuses cutting-edge RAG with Agent capabilities to create a superior context layer for LLMs — Open source · Platform · 89k★ · Go · Apache-2.0 · active 7 days ago
- [deer-flow](https://agentsearchengine.app/agents/deer-flow): An open-source long-horizon SuperAgent harness that researches, codes, and creates. — Open source · Agent · 81k★ · Python · MIT · active 7 days ago
- [Scrapling](https://agentsearchengine.app/agents/scrapling): An adaptive Web Scraping framework that handles everything from a single request to a full-scale crawl! — Open source · Infrastructure · 76k★ · Python · BSD-3-Clause · active 8 days ago
- [daytona](https://agentsearchengine.app/agents/daytona): Daytona is a Secure and Elastic Infrastructure for Running AI-Generated Code — Open source · Infrastructure · 72k★ · active 1 month ago
- [ruflo](https://agentsearchengine.app/agents/ruflo): The leading agent meta-harness. Deploy intelligent multi-player swarms, coordinate autonomous workflows, and build conversational AI systems. — Open source · Framework · 69k★ · TypeScript · MIT · active 7 days ago
- [openinterpreter](https://agentsearchengine.app/agents/openinterpreter): A lightweight coding agent for open models like Deepseek, Kimi, and Qwen — Open source · Agent · 68k★ · Rust · Apache-2.0 · active 11 days ago
- [anything-llm](https://agentsearchengine.app/agents/anything-llm): Stop renting your intelligence. Own it with AnythingLLM. Everything you need for a powerful local-first agent experience — Open source · Platform · 65k★ · JavaScript · MIT · active 9 days ago
- [mem0](https://agentsearchengine.app/agents/mem0): Universal memory layer for AI Agents — Open source · Infrastructure · 64k★ · Python · Apache-2.0 · active 8 days ago
- [TrendRadar](https://agentsearchengine.app/agents/trendradar): AI-driven public opinion & trend monitor with multi-platform aggregation, RSS, and smart alerts. — Open source · Agent · 62k★ · Python · GPL-3.0 · active 1 month ago
- [context7](https://agentsearchengine.app/agents/context7): Context7 Platform -- Up-to-date code documentation for LLMs and AI code editors — Open source · MCP server · 61k★ · TypeScript · MIT · active 10 days ago
- [autogen](https://agentsearchengine.app/agents/autogen): A programming framework for agentic AI — Open source · Framework · 61k★ · Python · CC-BY-4.0 · active 4 months ago
- [crewAI](https://agentsearchengine.app/agents/crewai): Framework for orchestrating role-playing, autonomous AI agents. By fostering collaborative intelligence, CrewAI empowers agents to work together seamlessly, tackling complex tasks. — Open source · Framework · 58k★ · Python · MIT · active 8 days ago
- [goose](https://agentsearchengine.app/agents/goose): an open source, extensible AI agent that goes beyond code suggestions - install, execute, edit, and test with any LLM — Open source · Agent · 53k★ · Rust · Apache-2.0 · active 7 days ago
- [chrome-devtools-mcp](https://agentsearchengine.app/agents/chrome-devtools-mcp): Chrome DevTools for coding agents — Open source · Agent · 50k★ · TypeScript · Apache-2.0 · active 7 days ago
- [nanobot](https://agentsearchengine.app/agents/nanobot): Lightweight, open-source AI agent for your tools, chats, and workflows. — Open source · Agent · 47k★ · Python · MIT · active 7 days ago
- [CowAgent](https://agentsearchengine.app/agents/cowagent): Open-source super AI assistant & Agent Harness. Plans tasks, runs tools and skills, self-evolves with memory and knowledge. Multi-model, multi-channel. Lightweight, extensible, one-line install. — Open source · Agent · 47k★ · Python · MIT · active 8 days ago
- [BettaFish](https://agentsearchengine.app/agents/bettafish): A multi-agent public-opinion analysis assistant anyone can use -- reconstructs the real shape of public sentiment and forecasts where it is heading. Built from scratch, no framework dependencies. — Open source · Agent · 42k★ · Python · GPL-2.0 · active 14 days ago
- [agno](https://agentsearchengine.app/agents/agno): Build, run, and manage agent platforms. — Open source · Agent · 42k★ · Python · Apache-2.0 · active 7 days ago
- [wshobson/agents](https://agentsearchengine.app/agents/wshobson-agents): Multi-harness agentic plugin marketplace for Claude Code, Codex CLI, Cursor, OpenCode, GitHub Copilot, and Gemini CLI — Open source · Platform · 39k★ · Python · MIT · active 8 days ago
- [UI-TARS-desktop](https://agentsearchengine.app/agents/ui-tars-desktop): The Open-Source Multimodal AI Agent Stack: Connecting Cutting-Edge AI Models and Agent Infra — Open source · Agent · 39k★ · TypeScript · Apache-2.0 · active 26 days ago
- [khoj](https://agentsearchengine.app/agents/khoj): Your AI second brain. Self-hostable. Get answers from the web or your docs. Build custom agents, schedule automations, do deep research. — Open source · Agent · 37k★ · Python · AGPL-3.0 · active 29 days ago
- [github-mcp-server](https://agentsearchengine.app/agents/github-mcp-server): GitHub's official MCP Server — Open source · MCP server · 32k★ · Go · MIT · active 10 days ago
- [storm](https://agentsearchengine.app/agents/storm): An LLM-powered knowledge curation system that researches a topic and generates a full-length report with citations. — Open source · Agent · 31k★ · Python · MIT · active 11 months ago
- [FastGPT](https://agentsearchengine.app/agents/fastgpt): FastGPT is a knowledge-based platform built on the LLMs, offers a comprehensive suite of out-of-the-box capabilities such as data processing, RAG retrieval, and visual AI workflow orchestration, — Open source · Platform · 29k★ · TypeScript · active 7 days ago
- [gpt-researcher](https://agentsearchengine.app/agents/gpt-researcher): An autonomous agent that conducts deep research on any data using any LLM providers — Open source · Agent · 29k★ · Python · Apache-2.0 · active 8 days ago
- [page-agent](https://agentsearchengine.app/agents/page-agent): JavaScript in-page GUI agent. Control web interfaces with natural language. — Open source · Agent · 29k★ · TypeScript · MIT · active 14 days ago
- [serena](https://agentsearchengine.app/agents/serena): A powerful MCP toolkit for coding, providing semantic retrieval and editing capabilities - the IDE for your agent — Open source · SDK / library · 28k★ · Python · MIT · active 11 days ago
- [fastmcp](https://agentsearchengine.app/agents/fastmcp): The fast, Pythonic way to build MCP servers and clients. — Open source · SDK / library · 27k★ · Python · Apache-2.0 · active 9 days ago
- [agenticSeek](https://agentsearchengine.app/agents/agenticseek): Fully Local Manus AI. No APIs, No $200 monthly bills. Enjoy an autonomous agent that thinks, browses the web, and code for the sole cost of electricity. — Open source · Agent · 27k★ · Python · GPL-3.0 · active 20 days ago
- [haystack](https://agentsearchengine.app/agents/haystack): Open-source AI orchestration framework for building context-engineered, production-ready LLM applications. — Open source · Framework · 26k★ · Python · Apache-2.0 · active 9 days ago
- [activepieces](https://agentsearchengine.app/agents/activepieces): AI Agents & MCPs & AI Workflow Automation • (~400 MCP servers for AI agents) • AI Automation / AI Agent with MCPs • AI Workflows & AI Agents • MCPs for AI Agents — Open source · Platform · 24k★ · TypeScript · active 8 days ago
- [skyvern](https://agentsearchengine.app/agents/skyvern): Automate browser based workflows with AI — Open source · Agent · 23k★ · Python · AGPL-3.0 · active 7 days ago
- [n8n-mcp](https://agentsearchengine.app/agents/n8n-mcp): A MCP for Claude Desktop / Claude Code / Windsurf / Cursor to build n8n workflows for you — Open source · MCP server · 23k★ · TypeScript · MIT · active 12 days ago
- [MaxKB](https://agentsearchengine.app/agents/maxkb): MaxKB is an open-source platform for building enterprise-grade agents. — Open source · Platform · 23k★ · Python · GPL-3.0 · active 7 days ago
- [pentagi](https://agentsearchengine.app/agents/pentagi): Fully autonomous AI Agents system capable of performing complex penetration testing tasks — Open source · Agent · 22k★ · Go · MIT · active 25 days ago
- [cua](https://agentsearchengine.app/agents/cua): Open-source infrastructure for Computer-Use Agents. Sandboxes, SDKs, and benchmarks to train and evaluate AI agents that can control full desktops (macOS, Linux, Windows). — Open source · Infrastructure · 22k★ · Python · MIT · active 7 days ago
- [coze-studio](https://agentsearchengine.app/agents/coze-studio): An AI agent development platform with all-in-one visual tools, simplifying agent creation, debugging, and deployment like never before. Coze your way to AI Agent creation. — Open source · Platform · 21k★ · TypeScript · Apache-2.0 · active 1 month ago
- [WeKnora](https://agentsearchengine.app/agents/weknora): Open-source LLM knowledge platform: turn raw documents into a queryable RAG, an autonomous reasoning agent, and a self-maintaining Wiki. — Open source · Platform · 20k★ · Go · active 7 days ago
- [FunASR](https://agentsearchengine.app/agents/funasr): Industrial-grade speech recognition toolkit: 170x realtime, 50+ languages, speaker diarization, emotion detection, streaming, and OpenAI-compatible API. — Open source · SDK / library · 20k★ · Python · MIT · active 10 days ago
- [DeepResearch](https://agentsearchengine.app/agents/deepresearch): Tongyi Deep Research, the Leading Open-source Deep Research Agent — Open source · Agent · 20k★ · Python · Apache-2.0 · active 6 months ago
- [pydantic-ai](https://agentsearchengine.app/agents/pydantic-ai): AI Agent Framework, the Pydantic way — Open source · Framework · 19k★ · Python · MIT · active 7 days ago
- [eliza](https://agentsearchengine.app/agents/eliza): Open source agentic operating system — Open source · Framework · 19k★ · TypeScript · MIT · active 7 days ago
- [jcode](https://agentsearchengine.app/agents/jcode): Coding Agent Harness — Open source · Agent · 18k★ · Rust · MIT · active 7 days ago