Search agents

Lead Scorer

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

VoiceAgent

AI voice agents that handle calls in Yoruba, Igbo, Pidgin, Hausa and Nigerian English, with mid-call code-switching. Self-serve from $12.50/month.

Agentix Labs

Montreal AI engineering shop that designs and deploys production-ready agents, agentic workflows, and voice agents for North American businesses.

Vellum

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

Sim

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

MindStudio

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

Kilo Code

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

Goose

Open source AI coding agent with a desktop app, CLI, and 70+ MCP extensions across 15+ LLM providers, backed by the Linux Foundation

TinyFish

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

Browserbase

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

Julius AI

Chat-based AI that turns your data into charts, reports, and presentations for knowledge workers.

Gemini Code Assist

Google's paid AI coding assistant for VS Code, JetBrains, and Cloud IDEs, built on the Gemini 3 model with a 1M-token context window.

Augment Code

AI agent platform that automates code review, ticket-to-PR delivery, security remediation, and incident response for dev teams.

LangGraph

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

SalesTouch

A remote MCP server that gives AI agents like Claude and Codex direct LinkedIn outreach tools, no extension required

OpenClaw

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

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.

AgentsKit

Open-source, MIT-licensed JS/TS toolkit for building AI agents with a 10KB zero-dependency core and 50 built-in integrations.

Muse Code

Meta's terminal coding agent — pay standard rate and it never trains on your code, or opt into Contributor pricing for a steep discount if you let it.

Webhound

An AI research agent priced by the dollar, not a subscription. Set a budget, get a cited Report or a sourced Dataset, and trigger it from inside Claude, Codex or Cursor via a native MCP server.

Agno

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

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.

Deepgram Voice Agent API

The speech-infrastructure vendor's own voice-agent API. Managed STT, LLM and TTS over a single WebSocket, $4.50/hr flat, with 6 LLM providers and self-hosted or VPC deployment on the same product.

OpenAI Realtime API

OpenAI's own speech-to-speech model API for voice agents: WebRTC, WebSocket or native SIP telephony, billed purely on audio tokens with no platform fee.

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.

Amplemarket

An all-in-one sales engagement platform whose Duo Copilot scans 100+ buying signals daily and drafts multichannel outreach — reps review, edit or dismiss every action before it sends.

Zendesk AI Agents

The customer-facing AI agent built into Zendesk's Suite helpdesk, now with Forethought's autonomous engine bundled in, billed per Verified Resolution on top of a per-seat plan.

Microsoft Fabric Data Agent

A generally available, governed natural-language Q&A agent built into Microsoft Fabric. It turns plain-English questions into SQL, DAX, KQL or GQL over your own lakehouse, warehouse, Power BI, mirrored and graph data, run as the requesting user, permission-scoped and read-only.

SkipCalls

AI phone receptionist that answers missed calls, filters spam, and books appointments for small businesses

Genspark

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

Warmly

Person-level website visitor identification plus two named AI agents (Inbound Agent and TAM Agent) that engage buyers in real time. Acquired by HubSpot, June 2026.

Synthflow AI

A no-code voice AI platform for enterprise phone agents — a visual Flow Designer and a structured Build-Evaluate-Launch-Learn deployment cycle, billed by the minute in separate components.

Auto-Respond

AI answering service that picks up calls and replies on Yelp, Thumbtack, Facebook, Instagram, and Google Local Services Ads, then books the job

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.

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.

Botsify

A decade-old, bootstrapped no-code AI agent builder for support, lead-gen and appointment booking across chat channels, with a distinct white-label track for agencies to resell under their own brand.

Microsoft Agent Framework

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

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.

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.

Glean

Enterprise "Work AI" platform — permission-aware search across 100+ systems, an AI assistant and a no-code agent builder, all grounded in one Knowledge Graph. $7.2B valuation (June 2025), $200M ARR by December 2025.

Moveworks

Employee-facing AI assistant for IT, HR and finance across 100+ enterprise systems, a ServiceNow product since December 2025, used by 5.5 million employees at companies like Siemens, Toyota and Unilever.

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.

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.

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.

Ada

A Toronto-founded AI customer service agent platform from 2016. Sales-led, custom-quoted, with a Reasoning Engine, MCP server and a public V2 REST API that newer rivals in the category do not all publish.

Mastra

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

PolyAI

The pre-LLM-era enterprise voice AI incumbent ($750M-valued, 200+ enterprise customers): sales-led only again after a May 2026 self-serve tier went away.

Unify

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

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.

Cresta

Unifies an autonomous AI Agent, real-time human Agent Assist and Conversation Intelligence on one contact-center platform, enterprise, custom-quoted, no self-serve tier.

Factory

Agent-native coding platform that coordinates specialized Droids across the full software development lifecycle, from a $20/mo Pro CLI to sales-gated enterprise deployment.

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.

Vecbase

One workspace where AI agents with roles like Researcher, Coder, Writer, and Operator work as a team

GC AI

An AI platform for in-house legal teams whose Research Agent runs parallel, cross-checked research across a corpus of 13M+ US case-law opinions, statutes and regulations.

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.

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.

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.

Crescendo

Fully-managed, AI-native CX platform that replaces your entire support stack with agents, QA and human staffing, billed per resolved outcome.

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.

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.

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.

ElevenLabs Conversational AI

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

Elicit

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

Qualified

Piper the AI SDR Agent engages inbound website visitors and inbox leads in real time on Salesforce, qualifies them against your ICP and books the meeting. Salesforce acquired Qualified in April 2026.

Decagon

Enterprise AI customer service agents for chat, voice and email. $4.5B valuation, custom contracts, no public price.

Artisan

Ava, the AI BDR, an autonomous sales agent that sources leads, runs multi-channel outbound and books meetings without a human writing each message.

Juggler

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.

11x

AI "digital workers" for sales, Alice runs autonomous outbound; Julian is an AI voice agent.

Aider

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

Bland AI

Enterprise voice AI that owns its own model stack, priced all-in per minute with no model pass-throughs.

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.

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.

Dify

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

Fin

Intercom’s customer-service AI agent, resolves tickets omnichannel over any helpdesk, billed per resolution.

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.

Lindy

A Slack-native AI teammate with a no-code app builder bundled in.

LlamaIndex

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

Manus

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

Microsoft AutoGen

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

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.

Perplexity

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

Pydantic AI

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

Relevance AI

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

Replit Agent

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

Retell AI

Build phone-call voice agents on Retell's turn-taking layer, plug in your own LLM, voice, and telephony, ship over voice, chat, or SMS.

Sierra

Bret Taylor’s enterprise agent platform, branded AI agents that resolve customer issues end to end, priced on outcomes.

Vapi

The developer platform for voice AI agents, bring your own model, voice and telephony, and Vapi orchestrates the call.

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.

Claude Code

Anthropic’s terminal-native coding agent with full-repository context. Included from the $17/month Claude Pro plan, or billed per token through the API.

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.

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.

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.

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.

n8n

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

OpenHands

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