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235 tools · 33 stacks

AI tools are all over the place. This is the full landscape — 247 tools across 21 categories, mapped and connected. Ready to narrow it down? Build your stack →

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What are you building and how is it defined?
How do you write and ship code?
How does your AI think and act?
Which models and infrastructure power it?
How do you build, observe, and extend it?
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These tools integrates with
OpenAI API
vs
OpenAI Guardrails

Choose OpenAI API when…

  • •You need the broadest ecosystem and most integrations
  • •GPT-4 or o-series reasoning models are required
  • •Assistants API, fine-tuning, or batch API are needed

Choose OpenAI Guardrails when…

  • •You are building on the OpenAI Responses or Assistants API
  • •You want first-party guardrails with OpenAI moderation built in
  • •You want to keep policy code in the same SDK as your model calls
Field
OpenAI API
OpenAI Guardrails
Category
LLM Infrastructure
AI Guardrails
Type
SaaS
OSS
Free Tier
✗ No
✓ Yes
Plans
API: Per token
OSS: Free
Stars
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Health
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●50 — Slowing
Trajectory
— not enough data
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Synced
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today

OpenAI API

API access to GPT-5, GPT-5.5, o3/o4 reasoning models, and the Responses API; plus embeddings, image, audio, and Realtime endpoints. The most widely deployed LLM API in production.

OpenAI Guardrails

OpenAI's official Python/TS library for adding guardrails to Responses API and Assistants API applications. Ships moderation, jailbreak detection, hallucination checks, and PII filters as composable guardrails.

OpenAI API Website ↗
OpenAI Guardrails Website ↗GitHub ↗

Shared Connections (1)

Guardrails AI

Only OpenAI API (37)

CrewAIAutoGenLangChainLlamaIndexMastraPydanticAIsmolagentsAgno

Only OpenAI Guardrails (2)

Lakera GuardOpenAI API
See full comparison in Explore →