sivchari/kumo
A lightweight AWS service emulator written in Go observed · 2026-10-09
Health v2 · maintenance only
82/100
- Activity 98
- Release rhythm 98
- Longevity 18
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-10-21. Adoption (stars, forks) is never an input.
- gap_med: 1.5
- age_days: 259
- days_rel: 15
- days_push: 12
- n_releases_24m: 55
Adoption not part of the score
1497 stars · 98 forks observed · 2026-10-09
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
Kumo is a lightweight AWS service emulator written in Go that mimics 82 AWS services such as S3, DynamoDB, SQS, and Lambda. It runs as a single binary or Docker container, requires no authentication, and supports optional data persistence for local development and CI/CD testing.
Use cases
- emulate AWS services locally without an AWS account
- run integration tests against fake AWS services in CI pipelines
- test Go code using AWS SDK v2 without hitting real AWS
- spin up a local S3 or DynamoDB server for development
- replace Localstack with a lighter single-binary alternative
- persist emulated AWS data across restarts during development
When to choose
- you need fast, lightweight AWS emulation in CI with no auth setup
- you want a single binary or Docker container instead of Localstack's heavier stack
- your tests use AWS SDK v2 from Go
- you need broad service coverage (82 services) in an emulator
When to avoid
- you need exact AWS API fidelity or advanced service behaviors
- you rely on AWS services not among the 82 supported ones
- you need multi-account, IAM enforcement, or realistic security semantics
Facets
cli-tool · maturity active
testing mock-api http-server developer-tools cloud-computing testing developer-tools go cli cross-platform aws-emulator localstack-alternative ci-testing single-binary aws-sdk devops docker
1 source
- readme: https://github.com/sivchari/kumo · fetched 2026-10-09 · 3b7b00ee2020
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| sivchari/kumo | main | 82 |
For agents
Data as of 2026-10-19T08:05:51.212177+00:00 · Report a problem