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Lunary vs Helicone

Debug the whole customer journey with Lunary. Compare application tracing with Helicone’s gateway and request analytics.

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Lunary conversation replay
Conversation replay in Lunary

Choose Lunary to explain what happened across a conversation, agent and tool chain. If provider routing is the main problem, Helicone’s gateway serves a different need; the two can be complementary.

Beyond the model request

Trace agent and tool execution as well as LLM calls.

The conversation behind the failure

Replay the customer exchange and review user feedback.

Keep your provider setup

Send telemetry through SDKs or OpenTelemetry; Lunary is not a routing gateway.

At a glance

Lunary vs Helicone: at a glance
AreaLunaryHelicone
Primary architecture to evaluateApplication telemetry via SDKs or OTELAI gateway plus observability
Customer contextChats, threads, user context, feedbackRequests, sessions, and custom properties
Prompt workflowTemplates and playgroundPrompt management with gateway integration
MCPRead-only developer documentationQuery observability data
Migration concernInstrumentation and historical field mappingRouting behavior as well as data export

See your workflow in Lunary.

Explore conversations, traces and prompt versions with our team.

See Lunary in action

Where each fits

Helicone participates in the request path to model providers. Lunary receives application telemetry through SDKs or OpenTelemetry.

Look beyond model calls

A successful model request can be followed by a failed tool. Test tool execution, retries, session context and the final response in your chosen integration.

Prompts and MCP

Both document prompt workflows. Helicone’s MCP server queries observability data; Lunary’s public Docs MCP provides read-only developer documentation.

Questions & answers

Must I replace my gateway to change observability?

No. Keep routing dependencies separate and validate each change.

Does a model tool call prove the tool ran?

No. Record the actual execution result, duration and error under the parent run.

By Lunary · Documentation reviewed Sep 16, 2026

Sources & methodology (10)

Based on vendor documentation, not an independent benchmark or hands-on rating. Features and plans can change.

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Follow the conversation. Find the cause. Test the fix.

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