#Humanloop
Multi-turn simulations, LLM-based scoring and tracing in production, so an agent gets tested before it ships. That's what earned LangWatch 5,000 GitHub stars.

openalternative.co/langwatch
LangWatch: Open Source Alternative to LangSmith, Humanloop, Weights and Biases, Braintrust, Arize, Maxim, and Galileo
Tests AI agents through multi-turn simulations, LLM-based scoring, and production tracing so teams can ship reliable agents with confidence.
openalternative.co
October 30, 2026 at 8:58 PM
Production is returning odd answers and you can't see the prompts behind them. Helicone sits in front of your LLM calls, logs each one, and shows cost, latency and errors. It's open source.

openalternative.co/helicone
Helicone: Open Source Alternative to DataDog, LangSmith, Splunk, LangChain, New Relic, Humanloop, Galileo, LogRocket, and Maxim
Open-source platform for logging, monitoring, and debugging LLM applications. Route, debug, and analyze AI apps with comprehensive observability tools.
openalternative.co
October 22, 2026 at 8:01 PM
Where does your AI agent go off script? LangWatch runs it through multi-turn simulations, scores the replies with an LLM, then traces live traffic to show you.

openalternative.co/langwatch
LangWatch: Open Source Alternative to LangSmith, Humanloop and Galileo
Tests AI agents through multi-turn simulations, LLM-based scoring, and production tracing so teams can ship reliable agents with confidence.
openalternative.co
October 17, 2026 at 8:03 PM
"LLM observability: cost, latency, and traces in one place."

Spanlens sits in front of OpenAI, Anthropic and Gemini, so you see what each call cost and which agent step caused it.

openalternative.co/spanlens
Spanlens: Open Source Alternative to LangSmith, Humanloop and Galileo
Drop-in observability platform for OpenAI, Anthropic, and Gemini that logs every request, tracks costs, traces agent workflows, and flags anomalies and PII.
openalternative.co
October 12, 2026 at 8:03 PM
I made so many loop designs but ended up with this simple fella, not fully final , the hat is different in the final design #isat #instarsandtime #humanloop ##isatspoiler
September 12, 2026 at 1:12 AM
14/18 . Humanloop and Evidently lean into domain-specific judges. The frontier is trajectory evals for agents, cost-aware routing, and self-serve calibration for non-technical owners
August 29, 2026 at 1:07 AM
An agent that works in your demo can still break on turn four with a real user.

LangWatch tests for that:
• Multi-turn simulations
• LLM-based scoring
• Production tracing

Just landed on OpenAlternative.
openalternative.co/langwatch
LangWatch: Open Source Alternative to LangSmith, Humanloop and Maxim
Tests AI agents through multi-turn simulations, LLM-based scoring, and production tracing so teams can ship reliable agents with confidence.
openalternative.co
August 24, 2026 at 4:03 PM
You can centralize everything with Humanloop via MCP. It lets you manage and version your prompts in one place so they are accessible across Claude, Cursor, or whatever else you use: https://vinkius.com/mcp/humanloop-llm-prompt-management-api
Connect Humanloop (LLM Prompt Management API) MCP for AI Agents (Free)
Manage and deploy LLM prompts with your AI agents using the Humanloop MCP. Perfect for teams needing version control and LLMOps in Cursor or Claude.
vinkius.com
July 22, 2026 at 11:16 AM
You can manage and version your prompts in one place using Humanloop via MCP. This makes them accessible to all your agents whether you use Claude, Cursor, or Slack: https://vinkius.com/mcp/humanloop-llm-prompt-management-api
Connect Humanloop (LLM Prompt Management API) MCP for AI Agents (Free)
Manage and deploy LLM prompts with your AI agents using the Humanloop MCP. Perfect for teams needing version control and LLMOps in Cursor or Claude.
vinkius.com
July 22, 2026 at 5:22 AM
Prompt fragmentation makes it hard to reuse work. Humanloop via MCP lets you manage, version, and deploy prompts so they stay accessible across all your AI services: https://vinkius.com/mcp/humanloop-llm-prompt-management-api
Connect Humanloop (LLM Prompt Management API) MCP for AI Agents (Free)
Manage and deploy LLM prompts with your AI agents using the Humanloop MCP. Perfect for teams needing version control and LLMOps in Cursor or Claude.
vinkius.com
July 22, 2026 at 4:14 AM
Centralizing prompt management can stop that fragmentation. Humanloop via MCP lets you really manage and version prompts so they stay accessible across your different AI services: https://vinkius.com/mcp/humanloop-llm-prompt-management-api
Connect Humanloop (LLM Prompt Management API) MCP for AI Agents (Free)
Manage and deploy LLM prompts with your AI agents using the Humanloop MCP. Perfect for teams needing version control and LLMOps in Cursor or Claude.
vinkius.com
July 22, 2026 at 3:34 AM
You can use Humanloop via MCP to manage and version your prompts so they do not get lost across different services. https://vinkius.com/mcp/humanloop-llm-prompt-management-api
Connect Humanloop (LLM Prompt Management API) MCP for AI Agents (Free)
Manage and deploy LLM prompts with your AI agents using the Humanloop MCP. Perfect for teams needing version control and LLMOps in Cursor or Claude.
vinkius.com
July 22, 2026 at 12:52 AM
To stop losing prompts across different services, you can use Humanloop via MCP to manage, version, and deploy them all in one place: https://vinkius.com/mcp/humanloop-llm-prompt-management-api
Connect Humanloop (LLM Prompt Management API) MCP for AI Agents (Free)
Manage and deploy LLM prompts with your AI agents using the Humanloop MCP. Perfect for teams needing version control and LLMOps in Cursor or Claude.
vinkius.com
July 22, 2026 at 12:09 AM
Prompt fragmentation is a real productivity killer. For managing, versioning, and deploying prompts directly into your AI agents, this might help: https://vinkius.com/mcp/humanloop-llm-prompt-management-api
Connect Humanloop (LLM Prompt Management API) MCP for AI Agents (Free)
Manage and deploy LLM prompts with your AI agents using the Humanloop MCP. Perfect for teams needing version control and LLMOps in Cursor or Claude.
vinkius.com
July 21, 2026 at 10:35 PM
You could use Humanloop to manage and deploy those prompt presets directly through your agent. https://vinkius.com/mcp/humanloop-llm-prompt-management-api
Connect Humanloop (LLM Prompt Management API) MCP for AI Agents (Free)
Manage and deploy LLM prompts with your AI agents using the Humanloop MCP. Perfect for teams needing version control and LLMOps in Cursor or Claude.
vinkius.com
July 16, 2026 at 10:00 AM
You can manage and version those prompt presets using the Humanloop MCP. It lets you deploy structured instructions directly to your agent via API, so you don't have to manually explain them every time. https://vinkius.com/mcp/humanloop-llm-prompt-management-api
Connect Humanloop (LLM Prompt Management API) MCP for AI Agents (Free)
Manage and deploy LLM prompts with your AI agents using the Humanloop MCP. Perfect for teams needing version control and LLMOps in Cursor or Claude.
vinkius.com
July 16, 2026 at 6:06 AM
🎯 Another milestone hit! Multica now has 30,000 stars! Amazing work 🌟

Manage coding agents as real teammates alongside humans
Multica: Open Source Humanloop Alternative
Open-source platform for assigning tasks to AI agents, tracking progress in real-time, and building reusable skills that compound across your team.
openalternative.co
May 21, 2026 at 6:00 AM
★ Just published: Multica — Manage coding agents as real teammates alongside humans

Open-source platform for assigning tasks to AI agents, tracking progress in real-time, and building reusable skills that compound across your team.
Multica: Open Source Humanloop Alternative
Open-source platform for assigning tasks to AI agents, tracking progress in real-time, and building reusable skills that compound across your team.
openalternative.co
May 13, 2026 at 2:00 PM
★ Just published: OpenLIT — Monitor, debug, and scale LLM applications with ease

Open-source observability platform for GenAI and LLM applications. Real-time monitoring, distributed tracing, prompt management, and AI model evaluation built on OpenTelemetry.
OpenLIT : Open Source Alternative to LangSmith, Humanloop and Weights and Biases
Open-source observability platform for GenAI and LLM applications. Real-time monitoring, distributed tracing, prompt management, and AI model evaluation built on OpenTelemetry.
openalternative.co
April 10, 2026 at 2:00 PM
★ Just published: Arize Phoenix — Open-source LLM tracing & evaluation for AI optimization

Open-source platform for LLM tracing, evaluation, and optimization. Features automatic instrumentation, prompt playground, and real-time AI application monitoring.
Arize Phoenix: Open Source Alternative to LangSmith, LangChain and Humanloop
Open-source platform for LLM tracing, evaluation, and optimization. Features automatic instrumentation, prompt playground, and real-time AI application monitoring.
openalternative.co
March 18, 2026 at 3:00 PM
🎯 Another milestone hit! Dify now has 130,000 stars! Amazing work 🌟

AI-powered app creation without coding complexities
Dify: Open Source Alternative to Glide, Vertex AI and Humanloop
Create, deploy, and manage AI-native apps effortlessly with a user-friendly platform that combines LLMs and your data
openalternative.co
February 23, 2026 at 7:00 AM
💫 130,000 GitHub stars and counting! Dify keeps growing! Shoutout to the team 🔥

AI-powered app creation without coding complexities
Dify: Open Source Alternative to Glide, Vertex AI and Humanloop
Create, deploy, and manage AI-native apps effortlessly with a user-friendly platform that combines LLMs and your data
openalternative.co
February 22, 2026 at 8:01 PM
Agenta — Build reliable LLM apps with integrated workflows

⭐ Stars: 3,857
🔗 Forks: 481
⏩ Last commit: Feb 19, 2026
⌛ First commit: Apr 26, 2023
Agenta: Open Source Alternative to LangSmith and Humanloop
Open-source LLMOps platform providing prompt management, evaluation, and observability tools for building robust AI applications with team collaboration.
openalternative.co
February 21, 2026 at 11:01 PM
Dify — AI-powered app creation without coding complexities

⭐ Stars: 128,219
🔗 Forks: 19,958
⏩ Last commit: Jan 30, 2026
⌛ First commit: Apr 12, 2023
Dify: Open Source Alternative to Glide, Vertex AI and Humanloop
Create, deploy, and manage AI-native apps effortlessly with a user-friendly platform that combines LLMs and your data
openalternative.co
January 31, 2026 at 12:02 PM
Feed: "Dynamic Business"
Published on Monday, January 19, 2026
Humanloop: Evaluation-Driven Development Under Anthropic
Anthropic's Humanloop: Leading Evaluation Engine now integrated within Anthropic Suite for enterprise model testing & monitoring.
dynamicbusiness.com
January 19, 2026 at 11:52 AM