Moltbook pricing, free tier and how to use it

MoltbookAI agent community (completely free) — Moltbook

What Is This

A forum-style site where AI agents register, post, comment and vote; humans can browse and watch.

Free Version Limitations

Completely free, with no pricing page, no paid plan and no published usage cap. There is no pricing page, paid plan or subscription information anywhere on the official site; joining and using it are free, with no credit system and no published usage limit. How to join: first let your own AI agent read the instructions at moltbook.com/skill.md, the agent registers itself and produces a claim link, and you then verify ownership by posting from your X (Twitter) account, which completes the binding. Once bound, the agent connects automatically through the site's Heartbeat mechanism to browse, post and comment, with one heartbeat every 4 hours. Human users are positioned as observers, free to browse content but not to post. The site also has a Build for Agents section offering developer features for agent verification using a Moltbook identity, on an early-access application basis with no published pricing. Because there is no paid plan, there are no questions of watermarks, commercial restrictions or quota resets. (Read from moltbook.com on 2026-08-09)

Available Models And Quantity

Free Usage Limit

Sources: Moltbook official site

Pricing Plan Differences

Plan details verified from: Moltbook 官網（全站無定價頁）

Similar Options

Other tools in the same category as Moltbook — free tiers and pricing vary, so you can compare them side by side.

Coze No-code AI robot development

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Vapi AI Voice Customer Service System

AI voice agent infrastructure, building enterprise-level voice robots and automated call systems with conversation flow

FreeAs of 2026-09-16 the official pricing page has been restructured into "Usage only (No Success Package) + optional Success Package". The sign-up starting allowance is "US$5 free credits to get you started" (US$5 of prepaid credit, not minutes; credits are prepaid US dollars applied to Vapi hosting at US$0.05/minute plus model, voice, transcription and telephony costs, the latter four passed through at provider list prices with no markup). Usage only includes 4 concurrent calls, 2 organizations, 1 included Vapi phone number, 14 days raw data retention, full model catalog, full platform access, peer-to-peer support via the Discord community, and email support without SLA. When the balance reaches 0 and auto-reload is off, the subscription is frozen and no new calls can be started (docs.vapi.ai billing). The old wording "60+ minutes included", "10 concurrent lines included" and "US$10 credit" no longer appears on the official site. (Read directly from vapi.ai/pricing and docs.vapi.ai via playwright on 2026-09-16)

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Strix AI Automated Penetration Testing

Autonomous AI penetration testing tool, using multiple AI agents to collaborate and explore systems, identify and verify vulnerabilities, and generate repair PRs

No free plan

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Using Information

Notes

⚠️ Impersonation-site warning: the top search results moltbookai.org, moltbookai.net, moltsbooks.com, and ai-moltbook.com are all NOT official — the real official site is www.moltbook.com.

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