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Pricing sourced from Langtrace · Last verified March 2026
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View Full Features →Yes. The Langtrace server is released under the AGPL-3.0 license, while the client SDKs are licensed under Apache-2.0. This means you can freely self-host the server and use the SDKs in commercial applications. The AGPL license requires that modifications to the server be shared if you distribute the modified version, but using the hosted Cloud offering avoids any license considerations entirely. The Apache-2.0 SDK license places no copyleft obligations on your application code.
Langtrace is built natively on the OpenTelemetry standard, so traces are portable to any OTel backend such as Grafana, Datadog, or Signoz. Langfuse uses a custom schema with its own ingestion format, which provides a polished experience within its ecosystem but creates more vendor lock-in for telemetry data. Helicone operates primarily as an API proxy logger that is extremely easy to set up but has less visibility into multi-step agent workflows and framework internals. Langtrace's OTel-native approach is best suited for teams that already have observability infrastructure and want GenAI tracing to integrate with it seamlessly.
It auto-instruments 8 LLM providers: OpenAI, Anthropic, Google Gemini, Cohere, Groq, Mistral, Perplexity, and Ollama. Orchestration frameworks include LangChain, LlamaIndex, LangGraph, CrewAI, DSPy, and AutoGen. Supported vector databases include Pinecone, Chroma, Weaviate, and Qdrant. The SDK architecture is extensible, so additional providers and frameworks are added regularly as the ecosystem grows. Custom instrumentation is also supported through manual span creation for unsupported libraries.
Yes. Langtrace ships a Docker Compose setup and Kubernetes Helm charts so the server, Postgres database, ClickHouse analytics store, and UI can run in your own VPC or on-premises environment. This is particularly valuable for healthcare, finance, and government teams that cannot send raw prompts and completions to third-party SaaS providers. Self-hosted deployments receive all core features including tracing, evaluations, cost tracking, and dataset management at no licensing cost.
Yes. You can curate datasets from real production traces, annotate them with human feedback, run prompt experiments across model versions, and score outputs using built-in evaluators for accuracy, faithfulness, toxicity, and JSON schema compliance. Custom evaluator functions are also supported. This workflow enables teams to go from observing a production issue to running a scored experiment that validates a fix, all within the same platform without exporting data to external tools.
AI builders and operators use Langtrace to streamline their workflow.
Try Langtrace Now →An open-source observability and evaluation platform for language-model applications.
Compare Pricing →Open-source LLM observability, gateway, and cost analytics platform — proxy your OpenAI, Anthropic, or Bedrock calls through Helicone and get traces, caching, retries, rate limiting, and cost tracking in one line of code.
Compare Pricing →Developer platform for AI agent observability, debugging, and cost tracking with two-line SDK integration.
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