Browse
Alternatives
Categories
Collections
Latest
Trending
Self-hosted
AI-native
New
Coming Soon
Discount Codes
Resources
Tech Stacks
Tags
Licenses
About Us
Blog
Advertise
Advertise
Submit
OpenAlternative
Alternatives
Categories
Collections
Resources
Advertise
Submit
Sign In
Ad
Learn More
/
Categories
/
LLM Observability & Evaluation
/
Using Feather Icons
Open Source LLM Observability & Evaluation using Feather Icons
A curated collection of the best open source tracing, monitoring, and evaluation platforms for LLM and AI-agent applications. using Feather Icons.
Order by
▼
LangWatch
AI
Simulation-based testing and evaluation for AI agents
Stars
3,523
Last commit
5 hours ago
License
Apache-2.0
Tests AI agents through multi-turn simulations, LLM-based scoring, and production tracing so teams can ship reliable agents with confidence.
Open Source
Alternative to:
LangSmith
Ad
Ad
Sent
– A unified API for sending messages across SMS, RCS, and apps like WhatsApp.
Learn More
Popular Proprietary Software:
Claude Code Alternatives
14
Spotify Alternatives
2
Notion Alternatives
20
Lovable Alternatives
3
Wispr Flow Alternatives
7
CapCut Alternatives
5
Discord Alternatives
11
n8n Alternatives
5
Cursor Alternatives
10
Codex Alternatives
18
Adobe Photoshop Alternatives
3
Microsoft Word Alternatives
5
Popular Categories:
Low-Code/No-Code Platforms
37
AI Agent Platforms
25
Project Management Suites
21
Infrastructure Monitoring Tools
20
Web Analytics
16
Team Chat & Messaging Tools
16
PaaS & Deployment Tools
17
Note-Taking Tools
16
Personal Knowledge Management (PKM) Tools
14
Cloud File Sync & Share Tools
14
AI Personal Assistants
15
Customer Communication Platforms
15
Ad
Sent
Messaging Infrastructure for Developers. One API for SMS, WhatsApp, and RCS across 190+ countries.
Get Started Free
Sent
Sent – A unified API for sending messages across SMS, RCS, and apps like WhatsApp.