Finding the possibilities
Alternatives
10 best Knock alternatives
Tools that cover the same task as Knock (code), ranked by how completely their pricing, free tier and API access are documented. Checked Oct 4, 2026.
- Knock starts at
- $250/mo
- Free plan
- Free plan
- API
- API available
- 01
Novu
Novu is open-source notification infrastructure for connecting AI agents and products to customers across in-app, email, SMS, push, WhatsApp, Slack, Teams, and Telegram channels. Cloud plans meter workflow runs while enterprise options add compliance, residency, and self-hosted deployment.
Best for: Product and platform teams that need multi-channel notification workflows with inbox components and usage-based scaling.
- 02
pusher.com
Pusher Channels delivers hosted pub/sub realtime messaging with presence and client libraries for web and mobile apps. The Channels product line targets low-latency events such as notifications, live feeds, and collaborative interfaces without operating websocket infrastructure.
Best for: Product engineers adding live updates, chat, or dashboards who prefer managed websocket delivery over self-hosted brokers.
- 03
Bubble
Bubble is a visual no-code platform for building web and mobile applications with databases, workflows, design tools, and AI-assisted development in a hosted workspace.
Best for: Founders and product teams shipping full-stack apps without traditional code who need Bubble-hosted infrastructure.
- 04
Lamatic AI
Lamatic AI is agentic middleware for teams to design, deploy, and optimize generative AI applications. Its visual builder, serverless deploy layer, and optimization tooling connect to hundreds of models and integrations for production agent workflows.
Best for: Product and engineering teams shipping GenAI features who want a visual builder with serverless deploy and observability without rebuilding infrastructure.
- 05
Agentset
Agentset provides building blocks for AI chat and search over private documents with RAG, citations, metadata filters, and multimodal ingestion.
Best for: Engineering teams shipping customer-facing chat or search who want managed RAG without building chunking and retrieval from scratch.
- 06
Voker
Voker is an analytics platform for AI agents in production, capturing intents, corrections, and resolutions from live conversations. SDKs wrap popular LLM providers so teams can monitor agent quality without digging through raw logs.
Best for: Product and engineering teams shipping customer-facing AI agents who need usage analytics and optimization signals.
- 07
Ably
Ably provides managed realtime infrastructure for pub/sub messaging, chat, collaborative state, and AI transport with global delivery guarantees. The vendor packages Free, Standard, Pro, and Enterprise tiers plus usage-based message, connection, and channel metering for production workloads.
Best for: Teams shipping chat, live dashboards, or agentic apps that need dependable realtime delivery without operating their own message brokers.
- 08
BotGPT
BotGPT lets you build custom ChatGPT-style assistants from your own files or website crawl, then embed them on sites and blogs in minutes. The product positions itself as a conversational agent for customer engagement, lead capture, chat history, and 24/7 support grounded in your content.
Best for: Teams that want a data-driven website chatbot without building conversational AI from scratch.
- 09
getstream.io
Stream provides hosted APIs and SDKs for in-app chat, video, activity feeds, moderation, and voice AI agents. Product teams integrate real-time messaging and feeds with enterprise SLAs and vertical-specific solution templates.
Best for: Mobile and web engineering teams shipping social, marketplace, or support experiences needing managed real-time infrastructure.
- 10
Frontly
Frontly is a no-code platform for building custom business apps backed by spreadsheets or databases with AI credits for generation tasks. Plans scale by monthly operations, AI credits, and branded app limits.
Best for: Teams prototyping internal tools and customer portals without engineering-heavy app projects.
Knock alternatives: common questions
What is the best free alternative to Knock?
Novu has an ongoing free plan. Free cloud tier includes 10,000 workflow runs per month with no credit card required to get started. Free plans change, so check the vendor before relying on one.
What is the cheapest Knock alternative?
BotGPT has the lowest listed starting price at $2.99/mo, compared with $250/mo for Knock.
Which Knock alternatives have an API?
Novu, pusher.com, Bubble, Lamatic AI, Agentset mention API or developer access.