Agents tagged “Free tier”

LS

Lead Scorer

AI SDR for solo founders. Agents find accounts, score them, and queue LinkedIn and email drafts behind human sign-off.

VE

Vellum

A personal AI assistant with persistent memory, built-in skills, and phone/voice access, hosted in the cloud or self-hosted.

SI

SimVerified

Open-source AI workspace for building, deploying, and managing AI agents with a Knowledge Base, Tables, and a full REST API

MI

MindStudio

No-code visual builder for AI agents, with 200+ models, 1,000+ integrations, and one-click deployment as APIs, webhooks, or MCP servers.

KC

Kilo Code

Open source AI coding agent for VS Code, JetBrains, CLI, and Cloud with 500+ models and no markup

TI

TinyFish

Web APIs and browser agents for search, fetch, and multi-step automation, priced pay-as-you-go through one shared API key.

BR

Browserbase

Cloud browser infrastructure and APIs for building and running browser automation and AI agents

LA

LangGraph

Open-source, MIT-licensed framework for building stateful, multi-agent AI workflows on cyclical graphs.

OP

OpenClaw

Open source AI assistant that runs on your machine and manages email, calendar, and tasks via WhatsApp or Telegram

JU

Junie

JetBrains' own AI coding agent. Plans before it codes, drives the real IDE debugger, runs across the JetBrains IDE family plus a standalone CLI. Free 30-day Pro trial; Pro from $10/month.

AG

Agno

An Apache 2.0 Python agent SDK and AgentOS runtime, with a Control Plane you run in your own cloud.

CA

Cartesia

The Stanford SSM-research spinout behind Sonic (TTS) and Ink (STT) — Line, its open-source voice-agent SDK, connects to 100+ LLMs and starts at a genuine $0/month, but the agent layer itself isn't self-hostable.

BO

Botpress

An open-source (MIT) AI agent platform for customer support, with bi-directional MCP support, webchat, WhatsApp and voice channels. Self-host free or use the managed cloud from $0/month.

GE

Genspark

One web workspace for research, files, slides, code, media and agent-run tasks, backed by a persistent context layer.

CS

Claude Agent SDK

Anthropic's own agent-building library: the same agent loop, tools and context management that power Claude Code, for Python and TypeScript. Claude-only, with no multi-provider escape hatch.

GK

Google Agent Development Kit

Google's open-source, code-first agent SDK with five language runtimes (Python, TypeScript, Go, Java, Kotlin), native A2A and MCP support, and an optional managed runtime on Google Cloud.

MF

Microsoft Agent Framework

Microsoft's unified, MIT-licensed agent SDK for .NET and Python: the supported successor to AutoGen and Semantic Kernel.

ZE

Zed

The open-source, GPU-native code editor built from scratch by Atom's creators — runs Claude Code, Codex and other agents via the Agent Client Protocol it created.

UN

Undermind

An AI literature-discovery agent that reads hundreds of full papers and follows citation trails, then reports how much of the literature it actually covered.

WA

Warp

An open platform for automating development: an open-source terminal, a standalone coding agent, and cloud-agent factories that orchestrate Claude Code, Codex, Gemini CLI and Warp's own agent across your SDLC.

AC

Antigravity CLI

Google's terminal-native coding agent that replaced the open-source Gemini CLI in June 2026. Same Antigravity 2.0 agent core, now closed-source and tied to a Google AI subscription.

SA

Salesforce Agentforce

Salesforce's enterprise platform for building, testing and running AI agents across customer and employee workflows, with CRM actions, voice, APIs, MCP and multi-agent orchestration.

MA

Mastra

The TypeScript-native agent framework. Agents, durable workflows, memory and observability in one Apache 2.0 package, with an optional managed cloud platform.

UN

Unify

A single conversational GTM agent for warm outbound — self-serve from $0, built to augment a seller rather than replace one.

CO

CodeRabbit

An AI code-review and security platform that reviews every pull request across GitHub, GitLab, Bitbucket and Azure DevOps, with a real free tier for unlimited repos.

LE

Letta

Letta is the open-source framework behind Letta Code, a stateful coding agent whose memory, skills, and identity persist across sessions rather than rebuilding context on every call.

LA

LiveKit Agents

The Apache 2.0 voice-agent framework. 13.1k GitHub stars, self-hostable, and the only open-source pick in this category with fully published pricing.

RO

Rox

An AI-native revenue operating system, "agent swarms" (one per account) that research, monitor and update your existing CRM across the whole deal lifecycle, with a genuine free self-serve tier.

BO

Bolt.new

Bolt.new is StackBlitz's browser-native prompt-to-full-stack-app builder. WebContainers runs a real Node environment in the browser tab itself, no remote VM, no local setup.

OC

OpenAI Codex CLI

OpenAI's open-source (Apache-2.0) terminal coding agent, bundled into ChatGPT plans from Free through Pro — Business seats are grandfathered-only.

OP

OpenCode

A free, open-source (MIT) AI coding agent for the terminal, desktop and IDE, with 75+ model providers, built-in subscription login, and a tested model marketplace behind it.

ZO

Zot

A free, MIT-licensed coding-agent harness in one Go binary. Branch any session from any past message, run 30+ model providers from one catalog, and DM the agent from Telegram.

EA

ElevenLabs Conversational AI

The voice-quality specialist’s own agent layer, 10,000+ voices and instant cloning, with a bring-your-own-LLM brain.

EL

Elicit

An AI research agent built for scientific literature. Plans sub-questions across 138M papers and links every claim to a source sentence.

JU

JugglerVerified

A free, open-source visual workbench for AI coding agents: each session is an editable Yjs tree, not a transcript. Single Go binary, no Electron, by the creator of JUCE.

OP

OpenHands

Open source platform for cloud coding agents. Free local OSS, free Individual Cloud tier, self-hosted Enterprise with SSO and RBAC.

AI

Aider

Open-source AI pair programming in your terminal, free under Apache 2.0, built to run against 14 LLM providers

CL

Cline

The open-source coding agent. Bring your own key. Runs in your editor, terminal, and as an SDK, with optional ClinePass for flat-rate open-model access.

DE

Devin

Devin is Cognition's autonomous coding agent: assign a task through Slack, CLI, or the web app, and it plans, edits, tests, and opens a pull request inside its own sandbox.

DI

Dify

Open-source, visual platform for building production LLM apps and agents, self-host it or run it in the cloud.

GR

GPT Researcher

Open-source autonomous research agent that plans a question, fans out across many sources and writes a cited report. Bring your own LLM and search keys.

LL

LlamaIndex

Open-source data framework for LLM apps, with LlamaParse as the paid agentic OCR for messy documents and LlamaAgents for document workflows.

MA

Manus

An autonomous general AI agent that plans and executes multi-step tasks end-to-end in its own cloud computer.

MA

Microsoft AutoGen

Microsoft's open-source framework for orchestrating conversations between multiple AI agents. Now in maintenance mode.

OS

OpenAI Agents SDK

OpenAI's lightweight open-source framework for building agents in Python and TypeScript, with handoffs, guardrails, tracing and a sandboxed workspace mode for long-running work.

PE

Perplexity

The AI answer engine. Cited answers, Deep Research, and the Comet browser that acts on the web for you.

PA

Pydantic AI

The Python AI SDK for type-safe agents, realtime voice, image generation and embeddings, with every model a string swap away.

RA

Relevance AI

Visual builder for multi-agent AI workforces, with evals, tracing, and SSO-grade governance on Enterprise.

RA

Replit Agent

AI agent that builds, deploys and fixes full-stack apps from a chat prompt inside Replit's browser IDE.

WD

Windsurf (now Devin Desktop)

The agentic IDE that began as Codeium, then Windsurf, now Cognition’s Devin Desktop. An open command centre for local and cloud coding agents.

CR

CrewAI

Open-source Python framework for role-based multi-agent crews, with a hosted build and runtime that adds enterprise governance, native SDKs for the major LLMs, and Ollama via LiteLLM.

CU

Cursor

The AI-first code editor (a VS Code fork) with a coding agent that reads, plans and edits across your whole codebase. Free Hobby tier, Pro from $20/month.

GC

GitHub Copilot

GitHub's AI coding assistant with an issue-to-PR coding agent, multi-agent control plane (Claude Code + OpenAI Codex bundled), and broad IDE coverage. Free tier with 2,000 completions/month; Pro from $10/month.

LA

LangChain

The most widely-used framework for building LLM apps and agents, with LangGraph for stateful multi-agent control: open-source and free to self-host.

N8

n8n

Source-available workflow automation with native AI-agent nodes and 500+ integrations. Self-hostable free, or on n8n Cloud from €20/month.