Best Realtime & WebSockets APIs in 2026

Browse the top Realtime & WebSockets APIs used by developers worldwide.

6 APIs across 5 subcategories

Realtime Messaging(2)

FreemiumRealtime Messaging

Pusher Channels

Hosted WebSocket service for real-time messaging with channels and presence.

npm i pusher

FreemiumRealtime Messaging

Ably

Realtime messaging platform with pub/sub, presence, history, and guaranteed delivery.

npm i ably

WebSocket Framework(1)

FreeWebSocket Framework

Socket.io

Real-time bidirectional event-based communication library for Node.js.

npm i socket.io

Database Realtime(1)

FreemiumDatabase Realtime

Supabase Realtime

Real-time database changes, broadcast, and presence via WebSocket connections.

npm i @supabase/supabase-js

Real-time Collaboration(1)

FreemiumReal-time Collaboration

Liveblocks

Real-time collaboration infrastructure with presence, storage, and comments.

npm i @liveblocks/node

Edge Realtime(1)

FreemiumEdge Realtime

PartyKit

Serverless real-time platform running on Cloudflare Workers with rooms.

npm i partykit

Browse other API categories

AI & Machine Learning

22 APIs · 8 subcategories

Communication

16 APIs · 6 subcategories

Maps & Geolocation

15 APIs · 7 subcategories

Data & Information

15 APIs · 11 subcategories

Fintech & Banking

14 APIs · 6 subcategories

Payments & Commerce

13 APIs · 6 subcategories

Developer Tools

13 APIs · 10 subcategories

Authentication & Identity

12 APIs · 5 subcategories

Social Media

12 APIs · 7 subcategories

Shipping & Logistics

12 APIs · 6 subcategories

CRM & Marketing

12 APIs · 7 subcategories

Automation & Integration

12 APIs · 6 subcategories

Cloud & Infrastructure

11 APIs · 6 subcategories

Databases & Backend

10 APIs · 6 subcategories

CRM & Sales

10 APIs · 3 subcategories

Analytics & Monitoring

9 APIs · 5 subcategories

Media & Streaming

9 APIs · 6 subcategories

PDF & Document

8 APIs · 5 subcategories

Translation & NLP

8 APIs · 3 subcategories

Calendar & Scheduling

7 APIs · 2 subcategories

Project Management

7 APIs · 3 subcategories

Video & Media

7 APIs · 5 subcategories

Search & Data

6 APIs · 3 subcategories

Content Management

6 APIs · 3 subcategories

Forms & Surveys

6 APIs · 2 subcategories

KYC & Identity

6 APIs · 1 subcategories

Feature Flags

6 APIs · 2 subcategories

Queue & Messaging

6 APIs · 6 subcategories

Image Processing

6 APIs · 5 subcategories

Vector Databases

6 APIs · 6 subcategories

Customer Support

6 APIs · 3 subcategories

Logging & Observability

6 APIs · 4 subcategories

Subscription & Billing

6 APIs · 3 subcategories

Travel & Hospitality

5 APIs · 4 subcategories

Push Notifications

5 APIs · 3 subcategories

E-Signatures

5 APIs · 2 subcategories

CDN & Edge

5 APIs · 2 subcategories

DNS

5 APIs · 3 subcategories

Secrets Management

5 APIs · 4 subcategories

Tax & Compliance

5 APIs · 4 subcategories

SEO & Web Analytics

5 APIs · 3 subcategories

Blockchain & Crypto

5 APIs · 4 subcategories

HR & Payroll

5 APIs · 4 subcategories

Weather

4 APIs · 2 subcategories

News & Content

4 APIs · 3 subcategories

Security

3 APIs · 3 subcategories