agentgateway
★ 5.7k
vs
lmnr
★ 3.5k
agentgateway vs lmnr
agentgateway: Agentgateway is an open-source proxy offering a complete connectivity solution for Agentic AI, built on AI-native protocols like MCP and A2A. It provides security, observability, and governance for agent-to-LLM, agent-to-tool, and agent-to-agent communication across various frameworks.; lmnr: Laminar is an open-source observability platform specifically designed for AI agents. It provides comprehensive tools for tracing, evaluation, and monitoring of AI agent behavior and performance.
01
TL;DR
agentgatewayObservability · ★ 5.7k
When to choose:
- You want one proxy for LLM calls (OpenAI-compatible API with spend controls, failover and load balancing), MCP tools and A2A traffic.
- You need guardrails from several sources: regex, OpenAI moderation, AWS Bedrock Guardrails, Google Model Armor or webhooks.
- You need security and observability built in: JWT, API keys, OAuth, RBAC with a CEL policy engine, rate limiting, TLS and OpenTelemetry.
When to skip:
- You only need to bridge one MCP transport: a small proxy is simpler.
- You want the inference-routing features without Kubernetes: the README ties them to Kubernetes Inference Gateway extensions.
- You want detailed setup instructions in the README: it is short and points to the documentation site.
lmnrObservability · ★ 3.5k
Debugging and understanding the execution flow and internal states of AI agents.
02
Side-by-Side Comparison
Field
agentgatewaylmnrCategory
Observability
Observability
Stars
★ 5.7k
★ 3.5k
License
Apache-2.0
Apache-2.0
Install Command
curl -sL https://agentgateway.dev/install.sh | bash -s -- --install-path /usr/local/bin
git clone https://github.com/lmnr-ai/lmnr && cd lmnr && docker compose up -d
Updated
1d ago
1d ago
Open Source
Yes
Yes
Tags
AI Gateway, Multi-Agent Communication, LLM Proxy
AI Observability, Tracing, LLM Evals
03
Features
agentgateway01LLM Gateway: Route traffic to major LLM providers through a unified OpenAI-compatible API with budget controls, load balancing, and failover.
02MCP Gateway: Connect LLMs to tools and external data sources via MCP with OpenAPI integration and OAuth authentication.
03A2A Gateway: Enable secure agent-to-agent communication using A2A, with capability discovery, modality negotiation, and task collaboration.
04Guardrails: Multi-layered content filtering with regex, OpenAI moderation, AWS Bedrock Guardrails, Google Model Armor, and custom webhooks.
05Security & Observability: Provide authentication (JWT, API keys, OAuth), fine-grained RBAC, rate limiting, TLS, and OpenTelemetry metrics/logs/tracing.
lmnr01OpenTelemetry-native tracing SDK with support for various AI SDKs (Vercel AI SDK, LangChain, OpenAI, etc.).
02Unopinionated, extensible SDK and CLI for running evals, with a UI for visualizing and comparing results.
03AI monitoring with the ability to define events using natural language descriptions to track agent behavior.
04SQL access to all collected data (traces, metrics, events) via a built-in SQL editor and API.
05High-performance architecture written in Rust, featuring a custom real-time engine and ultra-fast full-text search.
04
Use Cases
agentgateway↳Managing and routing traffic to multiple LLM providers with a unified API and cost controls.
↳Enabling secure and standardized communication between AI agents and external tools/data sources.
↳Facilitating collaborative task execution among multiple AI agents across different environments.
↳Implementing intelligent inference routing for self-hosted models based on resource utilization.
↳Applying multi-layered content filtering and moderation for AI interactions to ensure safety and compliance.
lmnr↳Debugging and understanding the execution flow and internal states of AI agents.
↳Evaluating the performance, quality, and reliability of AI agents and their responses.
↳Monitoring AI agents in production for anomalies, logical errors, and custom business behaviors.
05
Best For
agentgatewayEssentialTrending
lmnrEssentialTrending
FAQ
FAQ
What is the difference between agentgateway and lmnr?
Both agentgateway and lmnr are in the Observability category. agentgateway has 5.7k stars, while lmnr has 3.5k stars.
Which is better, agentgateway or lmnr?
The best choice depends on your use case. Choose agentgateway if Managing and routing traffic to multiple LLM providers with a unified API and cost controls., and lmnr if Debugging and understanding the execution flow and internal states of AI agents..
Is agentgateway free or open source?
Yes, agentgateway is open source on GitHub (Apache-2.0).
Is lmnr free or open source?
Yes, lmnr is open source on GitHub (Apache-2.0).
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