# LangSmith alternatives > These records overlap with LangSmith's recorded tasks and have the same product type. The selection uses task text, then information completeness; stars and sponsorship do not set the order. Check the specific capability you need before switching. LangSmith's record says to avoid it if: You want an end-user chatbot or assume all usage and self-hosting are included in the Developer allowance. Browse on the web: https://agentsearchengine.app/alternatives/langsmith ## Task-related research candidates - [Arize Phoenix](https://agentsearchengine.app/agents/arize-phoenix) — Arize's source-available AI observability platform for tracing, evaluation, datasets and experiments. · Self-host software; infrastructure and evaluator/model costs · Infrastructure · 12k★ · Python · Source available · recorded license: Elastic-2.0 · repository push 2 days ago · best for teams that want self-hosted tracing and evals built on opentelemetry standards - Shared terms in the records: dataset, evaluation, experiment, observability. These text matches do not establish equivalent capabilities. - **vs LangSmith:** The recorded use cases differ: LangSmith — Teams that need trace inspection, datasets and evaluations for an instrumented AI application; Arize Phoenix — Teams that want self-hosted tracing and evals built on OpenTelemetry standards. - [Opik](https://agentsearchengine.app/agents/opik) — Comet's open-source platform for LLM and agent tracing, evaluation, prompt management and monitoring. · Costs not checked · Infrastructure · 23k★ · Python · Open source · recorded license: Apache-2.0 · repository push 2 days ago · best for teams that want a fully self-hostable alternative to commercial llm observability tools - Shared terms in the records: evaluation, management, observability, prompt. These text matches do not establish equivalent capabilities. - **vs LangSmith:** The recorded use cases differ: LangSmith — Teams that need trace inspection, datasets and evaluations for an instrumented AI application; Opik — Teams that want a fully self-hostable alternative to commercial LLM observability tools. - [Langfuse](https://agentsearchengine.app/agents/langfuse) — An open-source LLM engineering platform for tracing, evaluation, prompt management and debugging. · Costs not checked · Infrastructure · 37k★ · TypeScript · Open source · recorded license: MIT · repository push 2 days ago · best for teams that want production-grade, self-hostable tracing and evals for llm apps - Shared terms in the records: evaluation, management, observability, prompt. These text matches do not establish equivalent capabilities. - **vs LangSmith:** The recorded use cases differ: LangSmith — Teams that need trace inspection, datasets and evaluations for an instrumented AI application; Langfuse — Teams that want production-grade, self-hostable tracing and evals for LLM apps. - [Helicone](https://agentsearchengine.app/agents/helicone) — An open-source AI gateway and LLM observability platform: routing, fallbacks, tracing and cost tracking. · Costs not checked · Infrastructure · 6.2k★ · TypeScript · Open source · recorded license: Apache-2.0 · repository push 4 days ago · best for adding cost, latency and trace visibility to an llm app with minimal code changes - Shared terms in the records: change, observability, trace, tracing. These text matches do not establish equivalent capabilities. - **vs LangSmith:** The recorded use cases differ: LangSmith — Teams that need trace inspection, datasets and evaluations for an instrumented AI application; Helicone — Adding cost, latency and trace visibility to an LLM app with minimal code changes. - [Promptfoo](https://agentsearchengine.app/agents/promptfoo) — Evaluate prompts and AI applications, and generate configured red-team tests. · Community software; model/target costs; paid enterprise options · Infrastructure · Open source · recorded license: MIT · best for developers who can configure targets, assertions and model providers for repeatable evaluation or red-team runs - Shared terms in the records: evaluate, evaluation, prompt, team. These text matches do not establish equivalent capabilities. - **vs LangSmith:** The recorded use cases differ: LangSmith — Teams that need trace inspection, datasets and evaluations for an instrumented AI application; Promptfoo — Developers who can configure targets, assertions and model providers for repeatable evaluation or red-team runs. - [Pipecat Cloud](https://agentsearchengine.app/agents/pipecat-cloud) — Managed deployment and observability for Pipecat voice-agent pipelines. · Paid product · Infrastructure · License not checked · best for teams moving a pipecat application from a local prototype to managed production infrastructure - Shared terms in the records: observability, team. These text matches do not establish equivalent capabilities. - **vs LangSmith:** The recorded use cases differ: LangSmith — Teams that need trace inspection, datasets and evaluations for an instrumented AI application; Pipecat Cloud — Teams moving a Pipecat application from a local prototype to managed production infrastructure. - [toolhive](https://agentsearchengine.app/agents/toolhive) — ToolHive is an enterprise-grade platform for running and managing Model Context Protocol (MCP) servers. · Costs not checked · Infrastructure · 2.3k★ · Go · Open source · recorded license: Apache-2.0 · repository push 2 days ago · best for platform teams running mcp servers in isolated containers on existing kubernetes, with per-request access policy and production observability - Shared terms in the records: observability, team. These text matches do not establish equivalent capabilities. - **vs LangSmith:** The recorded use cases differ: LangSmith — Teams that need trace inspection, datasets and evaluations for an instrumented AI application; toolhive — Platform teams running MCP servers in isolated containers on existing Kubernetes, with per-request access policy and production observability. 7 task-related records from 60 category candidates. Complete category directory (not equivalent substitutes): https://agentsearchengine.app/category/agent-infrastructure ## FAQ **How were alternatives to LangSmith selected?** Recorded task topics and meaningful shared terms qualify same-type candidates in the same category. Results are ordered by that overlap, then information completeness and a stable identifier. Sponsorship and GitHub stars do not participate. The method can miss suitable tools whose records lack task information. **Does inclusion mean a tested replacement?** No. These are catalogue-based research candidates. Check current sources, costs, permissions and deployment requirements, then test your own task. ASE has not run a performance benchmark of this shortlist. --- Source: [Agent Search Engine](https://agentsearchengine.app) — https://agentsearchengine.app/alternatives/langsmith