Growth · alternatives · 2026
24 alternatives to CalBot
Carly lets you create custom AI agents with 120+ integrations. Give each agent an inbox, instructions, and tool access for email, CRM, scheduling, research, and operations.
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 1 we have checked on their own sites, 1 of them free or with a free tier.
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World's first open source AI scheduling assistant
2023 · cal.com · its alternatives →
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Supercharged Cal.com scheduling with AI-powered calls
2025 · coss.com · its alternatives →
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Calk AI 1.0▲223Connect AI to your business data in seconds-from anywere
Nov 2025 · calk-ai.com · its alternatives →
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Callum▲261AI calendar assistant for teams – supercharge your calendar
Jan 2026 · getcallum.com · its alternatives →
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Meet-Ting▲271Free AI assistant for email scheduling in early access
Jan 2026 · meet-ting.com · its alternatives →
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- 9AE
Hey HN, we're Haakam, Michael, and Adi. We're building AgentMail (https://agentmail.to/), an API to give AI agents their own email inboxes. We’re not talking about AI for your email, this is email for your AI. We started building email agents because they can converse with users in their inboxes, automate email-based workflows, and authenticate with third-party applications. Given these unique capabilities, we think email will be a core interface for agents. But we were building on top of Gmail, which was a struggle: poor API support, expensive subscriptions, rate limits,…
2025 · chat.agentmail.to · its alternatives →
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Nylas CLI▲83Email, calendar, and contacts for AI agents
May 2026 · cli.nylas.com · its alternatives →
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HostedClaws▲108Your own AI employee that runs 24/7 with no set up
Feb 2026 · hostedclaws.com · its alternatives →
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The prototype of ambient agents
2025 · agentinbox.ai · its alternatives →
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AI Emailyfree tier, from $14.99/mo▲165Your AI inbox that writes like you + replies on autopilot
Jul 2026 · aiemaily.com · its alternatives →
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Scheduled▲102Open source AI calendar scheduler that lives in Gmail
Mar 2026 · tryscheduled.com · its alternatives →
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Sparks AI▲128Hi Hacker News, we just launched our beta for Sparks AI. Sparks AI is a platform for building, sharing, and monetizing your AI assistants using app integrations and multiple LLMs. We're still working out the kinks and would love to get your feedback. We also have a discord: https://discord.gg/bdWknpfVKX We’re trying to get our initial users to serve personally and hope that you give us a shot. Thank you
2025 · getsparks.ai · its alternatives →
- 22NI
Hi HN! My co-founder and I spent the last 4 weeks building something we desperately needed ourselves. The Problem: We spend hours processing emails - scheduling meetings, going through long newsletters, downloading attachments to review, verifying documents like invoices, and of course taking actions on external systems (Salesforce, Asana, Jira etc) based on emails received. A lot of this can be automated with the help of AI agents, saving several hours every week. Our Solution: Forward any email to a specialized AI agent that completes the task and email you back the results. No…
2025 · mxtoai.com · its alternatives →
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Schedule tasks for your AI agents from Google Calendar
Jul 2026 · agentcaly.com · its alternatives →
- 24
Create mailboxes and calendars that your AI agent owns
Jun 2026 · nylas.com · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →