📖 The AI Tool Bible

Best AI tools for coding agents

48 tools in the Agents category, filtered to coding agents.

All Agents

LangGraph

Featured
Agents · BYO (Claude / GPT / open)
8.8

Stateful, graph-based agent orchestration from LangChain.

Freemium· Free open-source; LangGraph Platform paidstateful agentshuman-in-loop

Claude Agent SDK

Agents · Claude Opus / Sonnet
8.6

Anthropic's official SDK for building autonomous Claude agents.

Free· Free SDK; API usage billed at Claude ratesClaude agentstool use

Devin

Agents · Multi-model (Claude / GPT configurable)
7.8

Cognition Labs' "autonomous software engineer" agent.

Paid· From $500/mo Coreautonomous codingticket resolution

AutoGPT

Agents · BYO (Claude / GPT / open)
7.5

Open-source platform for building autonomous AI agents.

Free· Free / open-source; hosted platform paidautonomous agentstask automation

A2A Protocol

Agents

Open standard for letting AI agents from different frameworks talk to each other.

Free· Free and open source (Apache 2.0)multi-agent-systemsagent-interop

AICaller

Agents

Automated outbound phone-calling platform using hyper-realistic AI voices for lead qualification, scheduling, and surveys.

Paid· Build $49/mo (300 credits); Grow $499/mo (4,000 credits); Enterprise usage-based at $0.12/creditoutbound-callinglead-qualification

Agent Skills

Agents · Model-agnostic

Open format for packaging procedural knowledge and workflows that AI coding agents load on demand.

Free· Free open standardagent-extensionscoding-agents

AgentGPT

Agents · GPT-3.5 (BYO key for others)

Browser-based autonomous AI agent builder that chains GPT calls toward a goal you define.

Freemium· Free tier with limited monthly runs; paid plans for higher usageautonomous-agentstask-automation

AgentMemory

Agents · Multi-model (Claude, Gemini, MiniMax, OpenRouter)

Open-source persistent memory runtime for AI coding agents, with hybrid retrieval and zero external dependencies.

Free· Free, open-source (Apache 2.0); bring your own LLM API keyagent-memorycoding-agents

Amazon SageMaker

Agents · Multi-model

AWS's end-to-end platform for building, training, and deploying machine learning models and AI agents at enterprise scale.

Paid· Pay-as-you-go; free tier available for new AWS accountsmodel-trainingmodel-deployment

Archon

Agents · Multi-model (Claude Code, Codex, others)

Open-source orchestration layer for running multiple AI coding agents in parallel git worktrees.

Free· Free and open source; bring your own model API keysparallel-coding-agentsworkflow-orchestration

Browser Use Web UI

Agents · Multi-model

Gradio web UI for running browser-use AI agents in a real or persistent Chrome session.

Free· Free, open-source; bring your own LLM API keysbrowser-automationweb-agents

Cald.AI

Agents · Multi-model

Voice AI agents that run inbound and outbound phone calls with sub-second latency.

Freemium· 100 free minutes; volume pricing at 10k min/mo; enterprise customoutbound-callsinbound-support

Cherry Studio

Agents · Multi-model

Open-source desktop AI client that wires 300+ LLMs into one chat, knowledge-base, and agent workspace.

Free· Free and open source; bring your own API keysmulti-model chatlocal knowledge base

ClevAgent

Agents

Middleware that supervises AI coding agents in real time, catching wasteful actions and enforcing safety guardrails.

Freemium· Free tier available; paid tiers not disclosedagent-supervisioncost-control

Coze Studio

Agents · Multi-model

Self-hostable visual AI agent development platform from ByteDance with workflows, RAG, and plugin tooling.

Free· Free, Apache 2.0; self-hostedai-agentsworkflow-automation

Cursor Talk to Figma MCP

Agents · Multi-model (Cursor / Claude Code via MCP)

Open-source MCP bridge that lets Cursor and Claude Code read and edit Figma files directly from the editor.

Free· Free, open-source (MIT)figma-automationdesign-to-code

DataRobot

Agents · Multi-model

Enterprise platform for building, deploying, and governing AI agents alongside classic predictive ML.

Enterprise· Contact sales; free trial availableenterprise-agentspredictive-ml

Daytona

Agents

Secure, isolated sandboxes for running AI-generated code with sub-90ms cold starts.

Freemium· Pay-per-second from $0.000014/sec; $200 free creditagent-sandboxescode-interpreters

DeerFlow

Agents · Multi-model (Doubao, DeepSeek, OpenAI, Gemini)

Open-source multi-agent framework from ByteDance for long-running research, coding, and content tasks.

Free· Free, MIT-licensed (self-hosted; you pay only for LLM tokens)deep-researchautonomous-coding

ElizaOS

Agents · Multi-model (BYO via plugins)

Open-source agentic OS for building and orchestrating multi-agent swarms across Discord, Telegram, X, and onchain.

Free· Free, open-source (self-hosted); bring your own model API keysmulti-agent-swarmssocial-bots

Gemini CLI

Agents · Gemini 3

Google's open-source terminal agent that brings Gemini 3 into your shell for codebase edits and workflow automation.

Freemium· Free tier with Google account; paid via Google One / AI subscriptionsterminal-coding-agentcodebase-editing

Guizang PPT Skill

Agents · Multi-model (Claude, Codex, GPT-Image)

Claude Code / Codex agent skill that generates single-file HTML slide decks in editorial-magazine or Swiss-design styles.

Free· Free, AGPL-3.0; requires a host AI agent (Claude Code, Codex, etc.)html-slide-deckspresentation-design

H2O.ai

Agents · Multi-model

Enterprise AI platform combining AutoML, generative AI, and vertical agents for regulated industries.

Enterprise· Contact sales; live demo on requestenterprise-agentsautoml

Hamster

Agents · Multi-model (agent-agnostic)

Collaborative product-planning workspace that turns briefs into structured tasks for AI coding agents.

Freemium· Free trial; paid tiers not publicly listedproduct-planningagent-task-orchestration

Hermes One

Agents · Multi-model (BYO via OpenRouter/OpenAI/Anthropic/Gemini/xAI/Ollama)

Open-source desktop AI agent with a self-improving learning loop and multi-platform messaging connectors.

Free· Free, MIT-licensed; you pay your own model inference costsautonomous-agentschat-ops

Hexabot

Agents · Multi-model

Self-hostable visual workflow builder for shipping production conversational and agentic AI.

Freemium· Community free; Starter $19/mo; Pro $59/mo; Unlimited $149/mo; Enterprise customconversational-aiworkflow-automation

Interviews Chat

Agents · Multi-model (GPT, Claude, Gemini)

AI interview copilot that whispers answers in real time during live job interviews.

Freemium· Free 30 credits; Starter $19/mo, Booster $29/mo, Pro $69/quarterinterview-coachingmock-interviews

Katonic AI

Agents · Multi-model (2,600+ via AI Gateway)

Sovereign enterprise platform for building, deploying, and governing AI agents on your own infrastructure.

Enterprise· Contact sales for quote; no public pricingenterprise-agentson-prem-llm

MCP Toolbox for Databases

Agents · Multi-model

Open-source MCP server that wires AI agents and IDEs straight into 50+ production databases with auth, pooling, and observability baked in.

Free· Free and open source (Apache 2.0); self-hostedagent-database-accessmcp-server

Mastra

Agents · Multi-model (90+ providers)

Open-source TypeScript framework for building, deploying, and observing AI agents and workflows.

Freemium· Free open-source core (Apache 2.0); Enterprise license availableai-agentsworkflow-orchestration

MindPal

Agents · Multi-model

No-code platform for building and orchestrating teams of AI agents that automate business workflows.

Freemium· Free tier; paid plans for higher usage and team seatsmulti-agent-workflowsbusiness-automation

MiniMax

Agents · MiniMax M3, Hailuo 2.3, Speech 2.8, Music 2.6

Chinese frontier-model lab shipping multimodal foundation models with a 1M-context coding/agent stack.

Freemium· Free tier; Token plan from ~$20/mo (~12.5B tokens); enterprise pricing on requestcoding-agentlong-context

Moltbook

Agents

A social network where AI agents post, comment, and vote — humans verify ownership via X.

Free· Free during early access; no public pricingagent-identityagent-to-agent-comms

Nexent

Agents · Multi-model (OpenAI-compatible: any LLM/Embedding/VLM/STT/TTS)

Open-source, zero-code platform for spinning up production-grade AI agents from a single natural-language prompt.

Free· Free, open-source (MIT); self-hosted infra + model API costs applymulti-agent-orchestrationzero-code-agents

Oh My OpenAgent

Agents · Multi-model (Claude Opus 4.7, Sonnet 4.6, GPT 5.5, Gemini 3.1 Pro)

Open-source multi-agent orchestration framework that coordinates specialized AI coders across planning, execution, and verification.

Free· Free, open-source (SUL-1.0); bring your own model API keysmulti-agent-codingautonomous-task-execution

OpenBB

Agents · Multi-model (Agent Rita is model-agnostic)

Open-source financial workspace where analysts and AI agents share the same governed data.

Freemium· Free Community Edition; paid Pro tiers via pro.openbb.cofinancial-researchinvestment-workflows

OpenHands

Agents · Multi-model (Claude, Gemini, GPT/Codex)

Open-source autonomous coding agent that plans, edits, and ships changes across real codebases.

Freemium· Free OSS tier; paid Team plan; Enterprise quoteautonomous-codingpr-review

OpenSandbox

Agents · Model-agnostic

Open-source sandbox infrastructure for running AI-generated code, agents, and browsers in isolated Docker or Kubernetes environments.

Free· Open source (Apache 2.0); managed pricing not disclosedcode-executionagent-sandboxing

PageAgent

Agents · Bring-your-own (Qwen, GPT, Claude, etc.)

An in-page JavaScript GUI agent that drives web interfaces with natural language, no headless browser required.

Free· Free, MIT-licensed; LLM costs are whatever provider you wire inweb-automationai-copilots

Palantir AIP

Agents · Multi-model (GPT, Claude, Llama, customer-hosted)

Enterprise AI platform that grounds LLMs in your operational data and runs agents against real business systems.

Enterprise· Contact sales; typically bundled with Foundryenterprise-agentsoperational-ai

PySpur

Agents · Multi-model

Open-source agent builder with a drag-and-drop canvas, Python escape hatch, and a built-in test harness.

Freemium· Open-source (Apache 2.0); managed Cloud coming soonagent-orchestrationagent-evaluation

SAS Viya

Agents · Multi-model

Enterprise-grade data and AI analytics platform with built-in governance, MCP server, and a Copilot for regulated industries.

Enterprise· Contact sales; 14-day free trialenterprise-analyticsai-governance

SWE-agent

Agents · Multi-model (GPT-4o, Claude Sonnet, DeepSeek, local via LiteLLM)

Open-source autonomous agent framework that lets LLMs fix GitHub issues and find security vulnerabilities by using a custom agent-computer interface.

Free· Free and open-source; you pay your own LLM API costsgithub-issue-fixingautonomous-coding

Sauna

Agents

Multiplayer AI agent platform that runs always-on across your team's apps and shared workflows.

Freemium· Free signup available; paid tiers not disclosed on homepageworkflow-automationteam-coordination

Serena

Agents · Bring your own (Claude, GPT, etc.)

Open-source MCP toolkit that gives coding agents IDE-grade symbol search, refactoring, and editing across 40+ languages.

Freemium· Core server free (MIT); optional JetBrains plugin is paid with free trialagent-codingrefactoring

Sim

Agents · Multi-model (Claude, OpenAI, Google)

Open-source visual workspace for building, deploying, and monitoring AI agents.

Freemium· Free (1,000 credits/mo); Pro $25/user/mo; Max $100/user/mo; Enterprise customagent-workflowsinternal-automation

Superpowers

Agents · Multi-model

Opinionated agentic skills framework that turns coding agents into disciplined, spec-driven software engineers.

Freemium· Free (MIT); paid commercial support via Primeradiantagentic-codingspec-driven-development