Alternatives to Durable Actors
Durable Actors: Open-source (MIT) alternative to Cloudflare Durable Objects from Terse: stateful serverless actors with their own SQLite database and serialized execution, for chat, collaboration and multi-agent apps, with TypeScript and Python SDKs. Looking for something different? Here are other tools in Databases & Backend.
Supabase
Open-source Postgres development platform with auth, storage, realtime and edge functions.
Firebase
Google's app development platform with Firestore, auth, hosting and cloud functions.
Neon
Serverless Postgres with branching and autoscaling.
PlanetScale
Managed MySQL (Vitess) and Postgres database platform built for scale.
Convex
Reactive backend with a TypeScript-native database, functions and realtime sync.
RDST
Readyset's open-source desktop agent that watches PostgreSQL or MySQL read-only, flags slow or regressed queries and proposes index, setting or rewrite fixes.
Glider
Open-source single-node vector database in Rust that makes every acknowledged write durable in S3-compatible storage, with filtered nearest-neighbor search over an HTTP API, a Python client and an MCP memory server for agents.
KiviDB
Open-source (AGPL-3.0), multi-threaded Redis and Valkey alternative written in Rust that speaks RESP2/RESP3, so existing Redis clients work unchanged, with full-text and vector search built in; self-host it or use KiviDB Cloud.
Busabase
Open-source (MIT) database and workspace that acts as a system of record for AI agents: agents and people share data, docs, skills and apps, every change keeps its history, and important writes can wait for review; desktop, self-hosted or Busabase Cloud.
Alkera
Agentic data platform where data engineers, analysts and agents collaborate in multiplayer notebooks and chats, with column-level lineage and a knowledge base; built on the open-source Databench workspace, free tier available.