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API Clients
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Using Yarn
Open Source API Clients using Yarn
A curated collection of the best open source client applications for interacting with and testing APIs. using Yarn.
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Voiden
Build APIs like code with Git-native workspace
Stars
1,514
Last commit
1 day ago
License
Apache-2.0
Offline-first API workspace that unifies specs, docs, tests, and mocks in programmable Markdown blocks. Version control everything in plain text files.
Open Source
Alternative to:
Postman
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Popular Proprietary Software:
Claude Code Alternatives
13
Spotify Alternatives
2
Notion Alternatives
20
Lovable Alternatives
3
Wispr Flow Alternatives
7
Discord Alternatives
11
CapCut Alternatives
5
n8n Alternatives
6
Cursor Alternatives
9
Codex Alternatives
18
Microsoft Word Alternatives
5
Adobe Photoshop Alternatives
3
Popular Categories:
Low-Code/No-Code Platforms
36
Project Management Suites
20
AI Agent Platforms
22
Infrastructure Monitoring Tools
19
PaaS & Deployment Tools
18
Team Chat & Messaging Tools
16
Note-Taking Tools
16
Collaborative Workspaces
15
Backend-as-a-Service (BaaS) Tools
14
Web Analytics
16
AI Personal Assistants
15
Customer Communication Platforms
15
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Sevalla – Deploy your app before your coffee gets cold. It’s that easy. Try Sevalla with $50 free credit.
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