01
Authorization at the boundary
Host functions derive identity; the component independently enforces conversation membership.
Open source · early alpha
Chat primitives
built for Convex.
The authorization-aware component for direct and small-group messaging—without importing your app's identity model or product policy.
$
pnpm add convex-chat convexTODAY
B
Bob
Found a quiet spot by the coast for Saturday.
BobFound a quiet spot by the coast…
Perfect. I'll bring lunch 🌊
C
Charlie
This is the place.
Bob is typing
Small surface. Strong guarantees.
Your application decides who can talk.
convex-chat keeps the conversation correct.
02
Durable chat invariants
Ordered, idempotent sends, monotonic read watermarks, and revision-safe message updates.
03
Reactive by default
Conversations, unread counts, presence, typing, replies, and reactions update through Convex.
Clear ownership boundaries
Bring your users.
Keep your policy.
convex-chat owns reusable chat state. Authentication, relationships, tenancy, moderation, and business rules stay in the host application where they belong.
Explore the architectureYour application
Authentication
Relationships
Product policy
actor
convex-chat
Membership
Message order
Unread state
The useful core
Everything a conversation needs.
Nothing your product should own.
Direct and small-group conversations
Replies, edits, tombstones, and reactions
Online presence and typing indicators
Provider-neutral attachment metadata
Build the product.
Don't rebuild chat.
Start with the example, then adapt the host boundary to your application.