Alternatives
10 best pubnub.com alternatives
Tools that cover the same task as pubnub.com (code), ranked by how completely their pricing, free tier and API access are documented. Checked Oct 4, 2026.
- pubnub.com starts at
- $98/mo
- Free plan
- Free plan
- API
- API available
- 01
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.
- 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
Quicknode
Quicknode provides blockchain infrastructure including RPC nodes, real-time streams, indexed data, and trading execution from one account. Builders choose credit-based plans with increasing request limits and support SLAs as usage grows.
Best for: Developers and businesses shipping on-chain apps who need managed nodes, streams, and scalable RPC throughput.
- 04
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.
- 05
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.
- 06
Manufact
Manufact Cloud deploys, tests, and monitors MCP servers and apps for ChatGPT, Claude, Grok, and other clients. It includes cross-client testing, publishing checks, traffic inspection, analytics, and templates from the mcp-use ecosystem.
Best for: Developers and product teams shipping MCP integrations who need hosted infrastructure, testing, and marketplace readiness.
- 07
Artie
Artie streams database change data to warehouses and lakes with sub-minute latency and exactly-once delivery. It replaces heavy Kafka or DMS setups with managed connectors for Postgres, MySQL, MongoDB, Snowflake, and more, targeting AI and analytics teams that need fresh relational data without operating their own replication stack.
Best for: Data and AI teams that need real-time warehouse replication without building Debezium or Kafka infrastructure themselves.
- 08
KERNEL
KERNEL provides cloud browser infrastructure for AI agents and web automations, spinning up sandboxed Chromium sessions with stealth, managed auth, GPU acceleration, live view, and telemetry. Developers connect via CDP, WebDriver BiDi, Playwright, OpenAPI, MCP, or official SDKs in TypeScript, Python, and Go.
Best for: Teams building QA, healthcare, e-commerce, or GTM agents that need reliable real-browser automation at scale.
- 09
LangSmith
LangSmith is an enterprise LLM observability, evaluation, and monitoring platform built by LangChain.
Best for: Developers and engineering teams building LLM-powered applications and agents who need debugging, prompt optimization, latency tracking, and quality evaluation.
- 10
Mem0
Mem0 provides persistent memory infrastructure for AI agents and applications so context survives across sessions, users, and agents. The platform offers hosted plans with SDK integration plus open-source options for developers building production agents that need durable recall.
Best for: Agent builders and app teams that need hosted memory layers with defined add and retrieval quotas.
pubnub.com alternatives: common questions
What is the best free alternative to pubnub.com?
Ably has an ongoing free plan. Free package includes 200 concurrent connections, 500 messages per second, and 6M messages per month with community and email support. Free plans change, so check the vendor before relying on one.
What is the cheapest pubnub.com alternative?
Mem0 has the lowest listed starting price at $19/mo, compared with $98/mo for pubnub.com.
Which pubnub.com alternatives have an API?
pusher.com, Quicknode, getstream.io, Bubble, Manufact mention API or developer access.