PrivChat

privchat.dev · checked 30 Sept 2026

#7 · Chat APIs

Visit privchat.dev ↗ Alternatives PrivChat vs mesibo

How it plugs in

—Public API

NoOpen source

YesFree tier

Signal on Chat APIs6.3#7 of 32

PrivChat is a self-hosted, open-source realtime infrastructure and chat system for apps, games, and AI agents.

Pricing

Open Sourceforever · complete realtime backbone · no feature gates · no seat counts · no usage meters · self-hostedFree
Platform & EnterpriseCustom per engagement · licensed per deployment · self-hosted · source-available · SLA supportOn request

As privchat.dev lists them, checked 30 Sept 2026.

Near it

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Runs on

Web
Windows
Mac
Linux
iOS
Android

Facts

Website: privchat.dev
Price: Free tier
Free trial: Not stated
Application modules: The commercial Platform provides accounts, wallets, payments, red packets, game orchestration, administration, assistants, and bots.
Client surfaces: The white-label app family includes native iOS, Android, and HarmonyOS apps, H5, a WeChat Mini Program, and PC web.
Encryption roadmap: End-to-end encryption in the direction of the Signal protocol is on the public roadmap.
Hosting limitation: PrivChat does not offer a hosted cloud yet; managed cloud is described as being on the roadmap and current deployments are self-hosted.
Infrastructure integrations: Deployment supports Docker and Compose with PostgreSQL and Redis, while storage supports S3-compatible backends including OSS, COS, MinIO, and Garage.
Messaging: The open-source messaging core includes rich media, mentions, replies, forwarding, reactions, message revocation, groups, privacy controls, and read state.
Push integrations: The offline push pipeline supports APNS, FCM, Huawei HMS, Xiaomi, OPPO, vivo, and Honor.
SDKs: PrivChat provides first-class Rust, TypeScript, and Kotlin SDKs implementing the same wire protocol.
Security: Server security includes TLS 1.3, QUIC and wss transport, RS256 signing with JWKS, token revocation, bcrypt password hashing, rate limits, privacy policies, and IP protection.
Support: Community support is provided through GitHub issues and discussions, while commercial engagements add SLAs, dedicated channels, training, and engineering support.
Synchronization: Multi-device support includes Telegram-style pts sync, idempotency, gap detection, offline queuing, reconnect catch-up, and cloud message history.
Target users: The product is intended for developers integrating chat into existing products, launching branded messaging apps, or adding payments, bots, and business workflows.

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