mongo4s — effect-agnostic MongoDB client for Scala 3
mongo4s.org
LaunchIndex first observed mongo4s — effect-agnostic MongoDB client for Scala 3 (mongo4s.org) live on 22 August 2026. View its launch screenshot, category, and verification evidence.

A launch record built from evidence.
mongo4s — effect-agnostic MongoDB client for Scala 3 (mongo4s.org) was first observed live on 22 August 2026.
Mongo4s is an effect-agnostic MongoDB client and repository layer for Scala 3, with AST-free BSON codecs and runtime backends. It provides typed repositories, field-based queries, and flexible runtimes.
Its profile is classified as Developer tool within Technology / Developer tools.
What the launch signal contained.
- First observed live
- Previous state
- No prior non-live observation
- Last verified
- Canonical host
- mongo4s.org
- Category
- Technology / Developer tools
- Website type
- Developer tool
- Observed title
- mongo4s — effect-agnostic MongoDB client for Scala 3
- Observed description
- Effect-agnostic MongoDB client and repository layer for Scala 3 — any runtime, any BSON codec, AST-free by default.
- Detected technologies
- None detected
- Screenshot captured
- Evidence source
- Browser observation · Local
- Evidence confidence
- 90%
- HTTP status
- 200
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