compare
Scalar vs Slumber
The same facts for both, read from GitHub every night, and the relation a person reviewed.
| Fact | Scalar | Slumber |
|---|---|---|
| Language | TypeScript | Rust |
| Licence | MIT | MIT |
| Stars | 16k | 1.2k |
| Latest | release-2026-10-05-df37703 | v5.3.0 |
| Last push | 2026-10-06 | 2026-09-24 |
| Release cadence | about 3 days between releases | about 16 days between releases |
| Active contributors | 32+ commit authors on the default branch in the last 90 days | 1 commit author on the default branch in the last 90 days |
| Flags | none | none |
How they relate
Both replace Postman. Alternatives to Postman →
PartialScalarAn API client generated from an OpenAPI document.
PartialSlumberA terminal UI client with collections kept in a YAML file.
Scalar
- release-2026-10-05-df377032026-10-05Release 2026-10-05
- release-2026-10-02-0962afc2026-10-02Release 2026-10-02
- release-2026-09-30-5d95c402026-09-30Release 2026-09-30
- release-2026-09-29-0e5c0882026-09-29Release 2026-09-29
- release-2026-09-25-85e8e222026-09-25Release 2026-09-25
Scalar
✓ signed The latest release, release-2026-10-05-df37703, carries a signature GitHub verified.
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Slumber
unsigned The latest release, v5.3.0, carries no signature GitHub could verify.
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