# Which Agent For > Use-case-first directory of AI agents and AI tools for small businesses. Each use-case page answers "which AI agent should I use for this job?" with picks, pricing checked on official vendor pages, a setup recipe and cautions. ## Use cases - [Which AI agent for answering customer emails](https://whichagentfor.com/use-cases/answer-customer-emails/) - [Which AI agent for answering phone calls with AI](https://whichagentfor.com/use-cases/ai-phone-receptionist/) - [Which AI agent for answering team questions from your docs](https://whichagentfor.com/use-cases/internal-knowledge-base/) - [Which AI agent for automating repetitive work between apps](https://whichagentfor.com/use-cases/connect-your-apps/) - [Which AI agent for booking appointments](https://whichagentfor.com/use-cases/book-appointments/) - [Which AI agent for bookkeeping](https://whichagentfor.com/use-cases/bookkeeping/) - [Which AI agent for building a simple internal tool](https://whichagentfor.com/use-cases/build-an-internal-tool/) - [Which AI agent for creating voiceovers](https://whichagentfor.com/use-cases/voiceovers/) - [Which AI agent for customer support chat on your website](https://whichagentfor.com/use-cases/customer-support-chat/) - [Which AI agent for drafting proposals and documents](https://whichagentfor.com/use-cases/draft-proposals/) - [Which AI agent for following up with leads](https://whichagentfor.com/use-cases/lead-follow-up/) - [Which AI agent for making explainer and training videos](https://whichagentfor.com/use-cases/explainer-videos/) - [Which AI agent for making presentations](https://whichagentfor.com/use-cases/presentations/) - [Which AI agent for making short clips from long videos](https://whichagentfor.com/use-cases/short-videos-from-long-videos/) - [Which AI agent for managing your email inbox](https://whichagentfor.com/use-cases/email-inbox-triage/) - [Which AI agent for planning your day and tasks](https://whichagentfor.com/use-cases/plan-your-day/) - [Which AI agent for replying to Instagram comments and DMs](https://whichagentfor.com/use-cases/instagram-dm-replies/) - [Which AI agent for researching and summarizing](https://whichagentfor.com/use-cases/research-and-summarize/) - [Which AI agent for researching prospects](https://whichagentfor.com/use-cases/lead-research/) - [Which AI agent for sending invoices and payment reminders](https://whichagentfor.com/use-cases/invoicing/) - [Which AI agent for social media posting](https://whichagentfor.com/use-cases/social-media-posting/) - [Which AI agent for taking meeting notes](https://whichagentfor.com/use-cases/meeting-notes/) - [Which AI agent for transcribing interviews and podcasts](https://whichagentfor.com/use-cases/transcribe-interviews/) - [Which AI agent for writing blog posts](https://whichagentfor.com/use-cases/write-blog-posts/) - [Which AI agent for writing product descriptions](https://whichagentfor.com/use-cases/product-descriptions/) ## Categories - [General AI assistants](https://whichagentfor.com/categories/general/): Chat assistants that help with writing, research and everyday questions. - [Automation and agents](https://whichagentfor.com/categories/automation/): Tools that connect your apps and run multi-step work for you. - [Customer support](https://whichagentfor.com/categories/support/): AI agents that answer customers by chat, email and phone. - [Sales and leads](https://whichagentfor.com/categories/sales/): Find, research and follow up with leads. - [Marketing and content](https://whichagentfor.com/categories/marketing/): Write, design and schedule content. - [Meetings and scheduling](https://whichagentfor.com/categories/meetings/): Booking, calendars and meeting notes. - [Finance and admin](https://whichagentfor.com/categories/finance/): Invoicing, bookkeeping and paperwork. - [Video and voice](https://whichagentfor.com/categories/video/): Make videos, clips and voiceovers. - [Build apps and code](https://whichagentfor.com/categories/build/): Build tools, apps and websites with AI. ## Tools - [Apollo.io](https://whichagentfor.com/tools/apollo/): B2B contact database and sales engagement platform. - [Buffer](https://whichagentfor.com/tools/buffer/): Schedules social media posts across channels, with an AI assistant for drafting. - [Calendly](https://whichagentfor.com/tools/calendly/): Booking links for appointments and meetings, with an AI notetaker add-on. - [Canva](https://whichagentfor.com/tools/canva/): Design tool with AI features for social posts, flyers and presentations. - [Chatbase](https://whichagentfor.com/tools/chatbase/): Train a chatbot on your website and documents and embed it on your site. - [ChatGPT](https://whichagentfor.com/tools/chatgpt/): OpenAI's general-purpose AI assistant for writing, research, analysis, image creation and custom GPTs. - [Claude](https://whichagentfor.com/tools/claude/): Anthropic's AI assistant, strong at long documents, careful writing and coding, with Projects and app connectors. - [Clay](https://whichagentfor.com/tools/clay/): Enriches lead lists with data from many sources and AI research. - [Cursor](https://whichagentfor.com/tools/cursor/): AI code editor and coding agent. - [Descript](https://whichagentfor.com/tools/descript/): Edit video and podcasts by editing the transcript, with AI voice and cleanup tools. - [ElevenLabs](https://whichagentfor.com/tools/elevenlabs/): Realistic AI voices for voiceovers, dubbing and voice agents. - [Fathom](https://whichagentfor.com/tools/fathom/): Free AI meeting recorder with instant summaries and action items. - [Fin by Intercom](https://whichagentfor.com/tools/intercom-fin/): AI customer service agent that answers support questions and works with most helpdesks. - [Fireflies.ai](https://whichagentfor.com/tools/fireflies/): AI notetaker that joins calls, transcribes and summarizes, with many integrations. - [FreshBooks](https://whichagentfor.com/tools/freshbooks/): Invoicing and accounting software for service businesses and freelancers. - [Gamma](https://whichagentfor.com/tools/gamma/): Creates presentations, documents and simple web pages from a prompt. - [Google Gemini](https://whichagentfor.com/tools/gemini/): Google's AI assistant, built into Gmail, Docs and the rest of Google Workspace. - [HeyGen](https://whichagentfor.com/tools/heygen/): AI avatar videos, translations and voice clones. - [Jasper](https://whichagentfor.com/tools/jasper/): AI marketing content platform with brand voice controls. - [Lindy](https://whichagentfor.com/tools/lindy/): Build AI agents that handle email, scheduling, follow-ups and other repeat tasks. - [Lovable](https://whichagentfor.com/tools/lovable/): Builds web apps and sites from a chat description. - [Make](https://whichagentfor.com/tools/make/): Visual automation builder for multi-step workflows, billed by credits. - [Manychat](https://whichagentfor.com/tools/manychat/): Automates Instagram, TikTok, Messenger and WhatsApp DMs and comment replies, with AI replies on Pro. - [Microsoft 365 Copilot](https://whichagentfor.com/tools/microsoft-copilot/): Microsoft's AI assistant inside Word, Excel, Outlook and Teams. - [Motion](https://whichagentfor.com/tools/motion/): AI planner that builds your daily schedule from tasks and projects. - [n8n](https://whichagentfor.com/tools/n8n/): Workflow automation with AI agent nodes; self-host the free Community Edition or use n8n Cloud. - [Notion](https://whichagentfor.com/tools/notion/): All-in-one docs and wiki workspace with built-in AI and custom agents. - [OpusClip](https://whichagentfor.com/tools/opusclip/): Turns long videos into short clips for Shorts, Reels and TikTok. - [Otter.ai](https://whichagentfor.com/tools/otter/): Records, transcribes and summarizes meetings. - [Perplexity](https://whichagentfor.com/tools/perplexity/): AI answer engine that searches the web and cites its sources. - [QuickBooks Online](https://whichagentfor.com/tools/quickbooks/): Accounting software with AI features for bookkeeping and invoicing. - [Reclaim.ai](https://whichagentfor.com/tools/reclaim/): AI calendar that schedules tasks, habits and meetings around your priorities. - [Replit](https://whichagentfor.com/tools/replit/): Build and host apps by describing them to an AI agent. - [Retell AI](https://whichagentfor.com/tools/retell/): Build AI voice agents that answer and make phone calls. - [Superhuman](https://whichagentfor.com/tools/superhuman/): AI writing and email assistance that works across your apps. - [Synthesia](https://whichagentfor.com/tools/synthesia/): Makes presenter-style videos with AI avatars from a script. - [Tidio](https://whichagentfor.com/tools/tidio/): Live chat plus the Lyro AI agent for answering website visitors. - [Vapi](https://whichagentfor.com/tools/vapi/): Developer platform for building voice AI agents. - [Wave](https://whichagentfor.com/tools/wave/): Invoicing, accounting and receipts for small businesses. - [Zapier](https://whichagentfor.com/tools/zapier/): Connects thousands of apps so work moves between them automatically, with AI steps, agents and chatbots. ## Comparisons - [chatgpt vs claude](https://whichagentfor.com/compare/chatgpt-vs-claude/) - [heygen vs synthesia](https://whichagentfor.com/compare/heygen-vs-synthesia/) - [otter vs fireflies](https://whichagentfor.com/compare/otter-vs-fireflies/) - [zapier vs make](https://whichagentfor.com/compare/zapier-vs-make/) - [zapier vs n8n](https://whichagentfor.com/compare/zapier-vs-n8n/) ## About - [How we review](https://whichagentfor.com/about/) - [Affiliate disclosure](https://whichagentfor.com/affiliate-disclosure/)