Portkey

AI gateway with prompt management, observability and guardrails.

Freemium Prompt Management & Testing portkey.ai

About Portkey

Portkey routes requests to many model providers through one gateway and adds prompt templates with versioning, logging, cost tracking and guardrails.

Useful when your app talks to several providers.

FAQ

What is Portkey?

AI gateway with prompt management, observability and guardrails.

Is Portkey free?

Portkey has a free tier, with paid plans for more usage or features.

What are some alternatives to Portkey?

Agenta, Arize Phoenix, Braintrust, DeepEval, Google AI Studio.

Alternatives to Portkey

All prompt management & testing →

Agenta

Open Source

Open-source platform for prompt management, evaluation and observability.

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Arize Phoenix

Open Source

Open-source tracing, evaluation and prompt playground for LLM apps.

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Braintrust

Freemium

Prompt management combined with evaluation and tracing.

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DeepEval

Open Source

Open-source framework for unit-testing LLM outputs.

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Google AI Studio

Free

Google’s free playground for writing and testing prompts with Gemini.

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Helicone

Open Source

Open-source LLM observability with prompt versioning and cost tracking.

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Langfuse

Open Source

Open-source LLM engineering platform with prompt management, tracing and evals.

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LangSmith

Freemium

LangChain’s platform for tracing, evaluating and managing prompts.

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Latitude

Open Source

Open-source platform for prompt engineering and AI agents.

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Lunary

Open Source

Open-source monitoring and prompt management for AI apps.

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Maxim AI

Freemium

End-to-end platform for prompt experimentation, evaluation and observability.

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MLflow Prompt Registry

Open Source

Open-source MLOps platform with GenAI tracing, evaluation and a prompt registry.

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