Durable Streams – Kafka-style semantics for client streaming over HTTP
Hey, I'm a co-founder at ElectricSQL. Durable Streams is the delivery protocol underneath our Postgres sync engine—we've been refining it in production for 18 months. The core idea: streams get their own URL and use opaque, monotonic offsets. Clients persist the last offset they processed and resume with "give me everything after X." No server-side session state, CDN-cacheable, plain HTTP. We kept seeing teams reinvent this for AI token streaming and real-time apps, so we're standardizing it as a standalone protocol. The repo has a reference Node.js server and TypeScript client. Would love…
Durable Streams – Kafka-style semantics for client streaming over HTTP launched on December 9, 2025 with 10 votes, #860 of 11,628 launches that month and more than 75% of that year's launches.
In plain words
Durable Streams is an HTTP-based protocol for reliable client streaming with Kafka-style semantics, refined in production for 18 months as part of ElectricSQL's Postgres sync engine. Clients use opaque monotonic offsets to resume streams without server-side session state, making it suitable for AI token streaming and real-time applications. The protocol works over plain HTTP and is CDN-cacheable. A reference Node.js server and TypeScript client are included, along with conformance tests for validating implementations in other languages.
written from the facts on this page · September 2026
From the sources
The data primitive for the agent loop. Contribute to durable-streams/durable-streams development by creating an account on GitHub.
In the maker’s words, at launch
Hey, I'm a co-founder at ElectricSQL. Durable Streams is the delivery protocol underneath our Postgres sync engine—we've been refining it in production for 18 months. The core idea: streams get their own URL and use opaque, monotonic offsets. Clients persist the last offset they processed and resume with "give me…
Does a similar job
all alternatives →- PDPicoMQ – Durable Streams over HTTP, on object storageAug 2026 · picomq.com · ▲159
PicoMQ is a Rust server for Durable Streams, built on Object Store. Cheap, URL-addressable, granular streams (create/append/read/long-poll/SSE), with Pico Protocol or Durable Streams Protocol as the facade. S3Stream is the stream storage primitive, used in AutoMQ, shipped as a Rust library. Coordination is a command log in Postgres.
Deepstream.io – open-source real-time server with pub/sub and data sync2016 · deepstream.io · ▲301A realtime server for the modern web
Streambed – Stream Postgres to Iceberg on S3, Supports Postgres WireMay 2026 · github.com · ▲129Stream Postgres to Apache Iceberg on S3 via logical replication, queryable over the Postgres wire protocol. - GitHub - viggy28/streambed: Stream Postgres to Apache Iceberg on S3 via logical replication, queryable over the Postgres wire protocol.
- PSPeerdb Streams – Simple, native Postgres change data capture2024 · ▲177
Hello HN, I am Sai Srirampur, one of the Co-founders of PeerDB. (https://github.com/PeerDB-io/peerdb). We spent the past 7 months building a solid experience to replicate data from Postgres to data warehouses. Now we're expanding to queues. PeerDB Streams provides a simple and native way to replicate changes as they happen in Postgres to Queues (Kafka, Redpanda, Google PubSub, etc). We use Postgres logical decoding to enable Change Data Capture (CDC). Blog post here: https://blog.peerdb.io/peerdb-streams-simple-native-postgres.... 10-min quickstart here:…
DBOS TypeScript – Lightweight Durable Execution Built on Postgres2025 · github.com · ▲77Hi HN - Peter from DBOS here with my co-founder Qian (qianl_cs) Today we want to share our TypeScript library for lightweight durable execution. We’ve been working on it since last year and recently released v2.0 with a ton of new features and major API overhaul. https://github.com/dbos-inc/dbos-transact-ts Durable execution means persisting the execution state of your program while it runs, so if it is ever interrupted or crashes, it automatically resumes from where it left off. Durable execution is useful for a lot of things: - Orchestrating long-running or…
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