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s2.dev

Fall 2025Active

API for unlimited, durable, real-time streams

Save
s2.dev logo

s2.dev

Fall 2025Active

API for unlimited, durable, real-time streams

Save
Company details

S2 is an API for durable streams. We make working with streaming data dead simple and reliable.

The more we worked on data systems, the more we felt like there was a missing building block. The seamless experience of object storage simply did not exist for durable streams – so we set out to fix that!

S2 reimagines streams as an unlimited and access-controlled web resource. Like if Kafka and S3 had a baby.

Building agents? Use granular streams to persist context in real time, make workflows auditable, and coordinate between agents.

Publishing fast-moving data? Streams support high fanout and can be accessed directly over the internet, so they are a great fit for broadcasting real-time feeds.

Sandboxing? Emit to per-instance streams, and read history or live events just as easily.

Local-first and multiplayer experiences? Propagate updates reliably and efficiently.

Stop dealing with clusters, and start streaming.

Location
San Francisco, CA, USA
Founded
Unknown
Category
Developer Tools
YC Directory Pages2.dev
Founders
  • SB
    Shikhar Bhushan
    Co-founder and CEO
    X / TwitterLinkedIn
  • SB
    Stephen Balogh
    Co-founder and CTO
    X / TwitterLinkedIn
  • DP
    Dwarak Govind Parthiban
    Co-founder
    X / TwitterLinkedIn

S2 is an API for durable streams. We make working with streaming data dead simple and reliable.

The more we worked on data systems, the more we felt like there was a missing building block. The seamless experience of object storage simply did not exist for durable streams – so we set out to fix that!

S2 reimagines streams as an unlimited and access-controlled web resource. Like if Kafka and S3 had a baby.

Building agents? Use granular streams to persist context in real time, make workflows auditable, and coordinate between agents.

Publishing fast-moving data? Streams support high fanout and can be accessed directly over the internet, so they are a great fit for broadcasting real-time feeds.

Sandboxing? Emit to per-instance streams, and read history or live events just as easily.

Local-first and multiplayer experiences? Propagate updates reliably and efficiently.

Stop dealing with clusters, and start streaming.

Location
San Francisco, CA, USA
Founded
Unknown
Category
Developer Tools
YC Directory Pages2.dev
Founders
  • SB
    Shikhar Bhushan
    Co-founder and CEO
    X / TwitterLinkedIn
  • SB
    Stephen Balogh
    Co-founder and CTO
    X / TwitterLinkedIn
  • DP
    Dwarak Govind Parthiban
    Co-founder
    X / TwitterLinkedIn
Pro

Upgrade to Pro, then request the s2.dev teardown.

This company does not have a completed analysis yet. Choose a Pro plan first, then use one of your 5 monthly research requests to have our agent investigate s2.dev. The full teardown, rebuild plan, and technical specs unlock when it lands.

  • Use Pro to request the first s2.dev teardown and keep the finished report in your account.
  • Read every completed teardown and rebuild plan already in the database.
  • Unlock implementation-ready technical specs and 5 fresh research requests each month.

Choose your Pro plan

$20/ month

Find one worth rebuilding, get the teardown, open the implementation-ready specs, and use fresh report requests when you want deeper research.

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CLI for agent imports
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