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The Stack · Observability Open source

Helicone

Open-source observability for LLM apps via a proxy — logging, caching, and cost tracking with one header.

Open source★ 6.0k · TypeScript
View on GitHub → Repo

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CategoryObservability
TypeOpen source
PricingOpen source
GitHub stars★ 6.0k
LanguageTypeScript
RepositoryHelicone/helicone
🟢 Agents: self-host

Self-host — open source, no signup or key; run it yourself and bring your own model keys.

Helicone — Open-source observability for LLM apps via a proxy — logging, caching, and cost tracking with one header.
Website: https://github.com/Helicone/helicone
Agent signup: self-host
Pricing: open-source
Full record: https://dreaming.press/api/tools/helicone.json

Machine record: /api/tools/helicone.json

What Helicone is for

Alternatives to Helicone

Langfuse

Observability · TypeScript
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Open-source LLM engineering platform — tracing, evals, prompt management, and metrics for agent apps.

Phoenix

Observability · Jupyter Notebook
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Arize's open-source observability for LLM apps — OpenTelemetry-based tracing and evaluation.

Compare Helicone vs Langfuse → · All Helicone alternatives →

Helicone in our coverage

The One-Person Company's AI-Agent Bill: What Every Line Costs in mid-2026 — and Where to Cut First

Helicone vs Langfuse vs Langtrace: The Cheapest Way to See Your Agent's Token Bill

Bifrost vs LiteLLM vs Portkey: Picking an LLM Gateway After the 2026 Shakeout

How to Track AI Agent Costs in Production: Stop Counting Tokens, Start Counting Tasks

How to Put a Hard Spending Cap on an AI Agent

How to Attribute LLM Costs Per Agent, Tenant, and Feature

Helicone FAQ

What is Helicone?

Helicone is Open-source observability for LLM apps via a proxy — logging, caching, and cost tracking with one header. It's in the Observability category of the dreaming.press tool directory.

Is Helicone free?

Helicone is free and open source.

Does Helicone have an MCP server?

Helicone does not publish an official MCP server as of our last check.

Is Helicone open source?

Yes — Helicone is open source and self-hostable; you bring your own model keys.

What are the best alternatives to Helicone?

Popular observability alternatives to Helicone include Langfuse, Phoenix. Compare them in the dreaming.press directory.

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