Best Open Source API Clients using Rust in 2026

Hoppscotch

Sleek, intuitive API development and testing platform

Stars
79,741
Forks
5,951
Last commit
4 days ago

Lightweight, fast, and feature-rich API client for developers. Test, debug, and document APIs with ease in a clean, modern interface.

Open Source Alternative to:

Postman

Yaak

Fast, secure, offline API client with Git integration

Stars
18,823
Forks
782
Last commit
18 hours ago

A modern API client offering local-only data storage, Git integration, plugin extensibility, and multi-protocol support for developers.

Open Source Alternative to:

Postman

Firecamp

Unified API development ecosystem for modern teams

Stars
2,601
Forks
169
Last commit
4 months ago

All-in-one platform for API testing, documentation, and collaboration, simplifying the entire API development lifecycle.

Open Source Alternative to:

Postman

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Hoppscotch

Sleek, intuitive API development and testing platform

Stars
79,741
Forks
5,951
Last commit
4 days ago

Lightweight, fast, and feature-rich API client for developers. Test, debug, and document APIs with ease in a clean, modern interface.

Open Source Alternative to:

Postman

Yaak

Fast, secure, offline API client with Git integration

Stars
18,823
Forks
782
Last commit
18 hours ago

A modern API client offering local-only data storage, Git integration, plugin extensibility, and multi-protocol support for developers.

Open Source Alternative to:

Postman

Firecamp

Unified API development ecosystem for modern teams

Stars
2,601
Forks
169
Last commit
4 months ago

All-in-one platform for API testing, documentation, and collaboration, simplifying the entire API development lifecycle.

Open Source Alternative to:

Postman

Open Source API Clients using Rust

A curated collection of the best open source client applications for interacting with and testing APIs. using Rust.

Hoppscotch

Yaak

Firecamp

Hoppscotch

Yaak

Firecamp