PubNub MCP Server
Official PubNub MCP server enabling AI agents to interact with PubNub's realtime messaging infrastructure — publishing and subscribing to channels, managing channel memberships, accessing message history, handling presence events, and integrating PubNub's global realtime data streaming into agent-driven workflows.
Score Breakdown
⚙ Agent Friendliness
🔒 Security
HTTPS enforced. Pub/sub keys + optional Access Manager for granular ACLs. SOC2/HIPAA certified. Official PubNub MCP.
⚡ Reliability
Best When
An application using PubNub for realtime features wants AI agents to interact with live data streams — publishing events, monitoring channels, and integrating realtime messaging into agent workflows.
Avoid When
You use other realtime messaging platforms (Firebase, Ably, Pusher) — each has its own API. PubNub is a specific realtime infrastructure choice.
Use Cases
- • Publishing realtime events and notifications to PubNub channels from trigger agents
- • Monitoring realtime data streams for agent-driven automation from event processing agents
- • Managing PubNub channel subscriptions from application coordination agents
- • Accessing message history for realtime data replay from analytics agents
- • Integrating PubNub realtime features into IoT device management agents
Not For
- • Teams using Firebase Realtime DB, Ably, or other realtime platforms
- • Batch/offline data processing (PubNub is for realtime streaming, not batch ETL)
- • Long-term data storage (PubNub provides limited message retention)
Interface
Authentication
PubNub publish key and subscribe key required. Optional secret key for admin operations. Set PUBNUB_PUBLISH_KEY, PUBNUB_SUBSCRIBE_KEY environment variables.
Pricing
PubNub has a generous free tier for development. MCP server is free open source from PubNub's official team.
Agent Metadata
Known Gotchas
- ⚠ PubNub is realtime push — agents subscribing to channels receive continuous events (manage this carefully)
- ⚠ Message retention is limited — don't use PubNub as primary data store
- ⚠ Publish and subscribe keys are separate — use appropriate key for each operation
- ⚠ Official from PubNub engineering — excellent quality with strong SDK ecosystem
Alternatives
Full Evaluation Report
Detailed scoring breakdown, competitive positioning, security analysis, and improvement recommendations for PubNub MCP Server.
Scores are editorial opinions as of 2026-03-06.