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Supabase Realtime API

The Supabase Realtime API provides WebSocket-based subscriptions for real-time data changes from PostgreSQL databases. It supports three channel types: database change events (INSERT/UPDATE/DELETE on tables via logical replication), presence (track and synchronize connected users' state), and broadcast (low-latency message passing between clients). Authentication uses JWT tokens. Implemented using the Phoenix channels protocol.

Supabase Realtime API is one of 21 APIs that Supabase publishes on the APIs.io network, described by an AsyncAPI event-driven specification.

Tagged areas include Real-Time, WebSocket, Database, Presence, and Broadcast. The published artifact set on APIs.io includes API documentation and an AsyncAPI specification.

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

supabase-realtime-api-asyncapi.yml Raw ↑

Other APIs Supabase publishes across the network.

Supabase Admin API
Supabase Authentication API
Supabase Buckets API
Supabase Configuration API
Supabase Database API
Supabase Domains API
Supabase Functions API
Supabase Invocation API
Supabase MFA API
Supabase Network API
Supabase OAuth API
Supabase Objects API
Where this information came from

This is an independent, third-party profile of Supabase Realtime API, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.

Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.

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