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Catalogue

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Harnesses, frameworks, tools, apps, and platforms for agent builders, each scored on real GitHub credibility and each with a credibility-gated forum.

12 tools

#guardrails ×
Framework

OpenAI Agents SDK

CodingVoiceSecurity

openai

Python framework for multi-agent workflows with handoffs, guardrails, sessions, sandbox and voice agents, and built-in tracing

multi-agentguardrailsobservabilitysandbox

A+
Tool

OpenLIT

MonitoringSecurity

openlit

Open-source AI engineering platform with OpenTelemetry-native LLM observability, evaluations, and prompt management

telemetryevaluationpromptguardrails

A+
Tool

Guardrails

Security

guardrails-ai

Python framework that adds input/output validation guards to LLM applications and generates structured data

validationstructured-outputguardrailshub-validators

A
Tool

NeMo Guardrails

Security

NVIDIA-NeMo

Open-source toolkit for adding programmable input, dialog, retrieval, execution, and output guardrails to LLM apps

guardrailsdialog-managementnvidia

A
Tool

Future AGI

MonitoringQASecurity

future-agi

OpenTelemetry-based tracing and evaluation instrumentation for voice-AI applications.

telemetryevaluationguardrailsobservability

A
Tool

Doberman

Security

DobermanCore

Your AI's guard dog. Doberman sits at runtime, gating every input, output and tool call to stop unsafe or unintended actions before they execute..

guardrailsprompt-injectionhuman-in-the-loopproxy

B
Harness

Parlant

MemorySecurity

emcie-co

Interaction control harness optimized for controlled, consistent, and predictable LLM interactions.

customer-serviceguardrailschatbotgemini

B
Tool

Cloudflare OS

InterfaceSecurityCoding

cloudflare

Agent workspace built on Cloudflare Workers for creating documents, building apps, and running agents with your company’s context and system

productivitysandboxguardrailsapp-generationhuman-in-the-loop

B
Tool

Gateway

Coding

Portkey-AI

Open-source AI gateway routing to 1,600+ LLMs through one API with retries, fallbacks, and guardrails

gatewayopenai-compatibleguardrailsfallback

B
Tool

DeepTeam

Security

confident-ai

DeepTeam is a framework to red team LLMs and AI agents.

red-teamprompt-injectionguardrails

B
Tool

LLM Guard

Security

No longer maintained

protectai

Archived security toolkit of composable input and output scanners for prompts and LLM responses

prompt-injectionpiitoxicityguardrails

B
Platform

MutagenT

QAMonitoring

Agent-engineering platform: offline build-and-eval loops, trace diagnosis and automated optimization; official Claude Code skills at github.com/mutagent-io.

evaluationobservabilitytrace-diagnosisagent-lifecycle

Score unavailable