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Best Helicone Alternatives

68 dev tools you can use instead of Helicone. Ranked by popularity, tag overlap, and live GitHub signals.

observabilityproxycost-trackingllm-opsopen-source
H

Helicone

Reference

Open-source LLM observability proxy with one-line integration

5.7K1w ago97
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Top Alternatives to Helicone

M

Mem0

Persistent, adaptive memory layer for AI agents and assistants

OSSfreemium
Mem0
56.7Ktoday310
2 shared tags
L

Langfuse

Open-source LLM engineering platform — traces, evals, prompt management — 23K+ stars

OSSfreemium
Langfuse
28.0Ktoday157
2 shared tags
A

Arize Phoenix

Open-source LLM observability with tracing, evaluation, and datasets — 8K+ stars

OSSfreemium
Arize AI
9.8K250.0K/wtoday173
2 shared tags
P

Portkey

AI gateway with guardrails, caching, and observability for 200+ LLMs — 11K+ stars

OSSfreemium
Portkey
11.9Ktoday101
2 shared tags
Z

Zep

Long-term memory and knowledge graph store for AI assistants and agents

OSSfreemium
Getzep
4.6K6w ago15
2 shared tags
L

LangSmith

Observability, tracing, and evaluation platform for LLM applications

Commercialfreemium
LangChain
901today84
2 shared tags
A

AegisUI

Semantic security layer detecting malicious UI behaviors in AI agent systems beyond schema validation

OSSFree
Research Team (Uddin & Hajira)
2 shared tags
A

Agent Audit

Security analysis system for LLM agent applications and MCP configurations

OSSFree
Research Project
2 shared tags
A

Agent Lifecycle Toolkit (ALTK)

Standardized middleware for production-ready AI agents with built-in failure handling

OSSFree
Multiple Authors
2 shared tags
C

CausalFlow

Causal debugging framework that converts failed LLM agent traces into minimal counterfactual fixes

OSSFree
Research
2 shared tags
C

ClawTrap

MITM red-teaming framework for testing autonomous web agent security in real-world scenarios

OSSFree
Independent Researchers
2 shared tags
C

Cognitive Firewall

Hybrid edge-cloud security defense against prompt injection attacks on browser AI agents

OSSFree
Research Team
2 shared tags

Compare directly

Helicone vs Mem0Helicone vs LangfuseHelicone vs Arize PhoenixHelicone vs Portkey