--- title: "agent-prism vs langtrace" type: "comparison" canonical_url: "https://www.graphcanon.com/compare/evilmartians-agent-prism-vs-scale3-labs-langtrace" tools: ["evilmartians-agent-prism", "scale3-labs-langtrace"] --- # agent-prism vs langtrace *GraphCanon updated Aug 21, 2026* ## Verdict Pick agent-prism if agent-prism is a TypeScript-based React component library that facilitates trace visualization from AI agents offering comprehensive monitoring and evaluation capabilities; pick langtrace if langtrace stands out as an open-source observability solution for large language models, offering real-time tracing and evaluation capabilities through the Open Telemetry framework. [agent-prism](https://storybook.agent-prism.evilmartians.io/?utm_source=github&utm_medium=social) reports 380 GitHub stars, 23 forks, and 15 open issues, last pushed Jul 27, 2026. [langtrace](https://langtrace.ai) has 1.2k stars, 126 forks, and 1 open issues, last pushed Nov 17, 2025. Figures are from public GitHub metadata via [agent-prism's repository](https://github.com/evilmartians/agent-prism) and [langtrace's repository](https://github.com/Scale3-Labs/langtrace). | | [agent-prism](/tools/evilmartians-agent-prism.md) | [langtrace](/tools/scale3-labs-langtrace.md) | | --- | --- | --- | | Tagline | React components for visualizing traces from AI agents | Open Telemetry based observability tool for LLM applications | | Stars | 380 | 1,228 | | Forks | 23 | 126 | | Open issues | 15 | 1 | | Language | TypeScript | TypeScript | | Adopt for | Agent-prism is a TypeScript-based React component library that facilitates trace visualization from AI agents offering comprehensive monitoring and evaluation capabilities. | Langtrace stands out as an open-source observability solution for large language models, offering real-time tracing and evaluation capabilities through the Open Telemetry framework. | | Persona | - | - | | Runtime | - | - | | License | MIT | AGPL-3.0 | | Categories | AI Agents, Developer Tools, Evaluation & Observability | Evaluation & Observability | ## Trust and health _Sourced signals - not a safety guarantee. No winner column._ | | [agent-prism](/tools/evilmartians-agent-prism.md) | [langtrace](/tools/scale3-labs-langtrace.md) | | --- | --- | --- | | Maintenance | Active (82%) | Slowing (36%) | | Days since push | 12d | 276d | | Open issues (now) | 15 | 1 | | Stars delta | Unknown | +12 (30d) | | Open issues delta | Unknown | 0 (30d) | | Full report | [trust report](/tools/evilmartians-agent-prism/trust.md) | [trust report](/tools/scale3-labs-langtrace/trust.md) | ## Decision facts: agent-prism - **Adopt for:** Agent-prism is a TypeScript-based React component library that facilitates trace visualization from AI agents offering comprehensive monitoring and evaluation capabilities. ## Decision facts: langtrace - **Adopt for:** Langtrace stands out as an open-source observability solution for large language models, offering real-time tracing and evaluation capabilities through the Open Telemetry framework. ## Choose when ### Choose agent-prism if… - License: agent-prism is MIT, langtrace is AGPL-3.0. - Tags unique to agent-prism: ai-agents, ai-monitoring, component-library, distributed-tracing. - Also covers AI Agents, Developer Tools. - If your project uses TypeScript and React for front-end development, and you need to monitor AI agent behavior effectively without reinventing the UI wheel. ### Choose langtrace if… - License: langtrace is AGPL-3.0, agent-prism is MIT. - Tags unique to langtrace: ai, datasets, evaluations, gpt. - langtrace ships Docker support for self-hosted deployment. - When developing or using LLMs and frameworks where end-to-end visibility into every aspect of model performance is crucial. ## When NOT to use agent-prism - Consider other options if your project does not use TypeScript since adapting libraries specifically tailored for TypeScript might introduce unnecessary complexity. - If real-time dynamic updates are critical and the current data handling mechanisms of agent-prism do not meet these requirements, look elsewhere. ## When NOT to use langtrace - For teams that do not require real-time tracing and evaluations, as implementing Langtrace might introduce unnecessary overhead. - When working with non-LLM AI applications or other machine learning models, Langtrace’s specialized features for large language models may not provide much value. ## Common questions ### What is the difference between agent-prism and langtrace? agent-prism: React components for visualizing traces from AI agents. langtrace: Open Telemetry based observability tool for LLM applications. See the comparison table for live GitHub stats and shared categories. ### When should I choose agent-prism over langtrace? Choose agent-prism over langtrace when License: agent-prism is MIT, langtrace is AGPL-3.0; Tags unique to agent-prism: ai-agents, ai-monitoring, component-library, distributed-tracing; Also covers AI Agents, Developer Tools; If your project uses TypeScript and React for front-end development, and you need to monitor AI agent behavior effectively without reinventing the UI wheel. ### When should I choose langtrace over agent-prism? Choose langtrace over agent-prism when License: langtrace is AGPL-3.0, agent-prism is MIT; Tags unique to langtrace: ai, datasets, evaluations, gpt; langtrace ships Docker support for self-hosted deployment; When developing or using LLMs and frameworks where end-to-end visibility into every aspect of model performance is crucial. ### When should I avoid agent-prism? Consider other options if your project does not use TypeScript since adapting libraries specifically tailored for TypeScript might introduce unnecessary complexity. If real-time dynamic updates are critical and the current data handling mechanisms of agent-prism do not meet these requirements, look elsewhere. ### When should I avoid langtrace? For teams that do not require real-time tracing and evaluations, as implementing Langtrace might introduce unnecessary overhead. When working with non-LLM AI applications or other machine learning models, Langtrace’s specialized features for large language models may not provide much value. ### Is agent-prism or langtrace more popular on GitHub? langtrace has more GitHub stars (1,228 vs 380). Stars measure visibility, not whether either tool fits your constraints. ### Are agent-prism and langtrace open source? Yes - both are open-source projects on GitHub (agent-prism: MIT, langtrace: AGPL-3.0). ### Where can I find alternatives to agent-prism or langtrace? GraphCanon lists graph-backed alternatives at [agent-prism alternatives](/tools/evilmartians-agent-prism/alternatives) and [langtrace alternatives](/tools/scale3-labs-langtrace/alternatives) ([agent-prism markdown twin](/tools/evilmartians-agent-prism/alternatives.md), [langtrace markdown twin](/tools/scale3-labs-langtrace/alternatives.md)), ranked by typed relationship edges rather than popularity votes. ### Is there a machine-readable version of this comparison? Yes. The markdown twin at [this comparison](/compare/evilmartians-agent-prism-vs-scale3-labs-langtrace.md) mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers. ### Which is better maintained, agent-prism or langtrace? agent-prism: Active. langtrace: Slowing. Compare maintenance labels, days since push, and release cadence in the trust section below - stars alone do not measure maintenance. ### Where are the full trust reports for agent-prism and langtrace? GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: [agent-prism trust report](/tools/evilmartians-agent-prism/trust); [langtrace trust report](/tools/scale3-labs-langtrace/trust). --- **Machine-readable endpoints** - JSON: [`/api/graphcanon/graph?tool=evilmartians-agent-prism`](/api/graphcanon/graph?tool=evilmartians-agent-prism) - LLM index: [/llms.txt](/llms.txt) - Full corpus: [/llms-full.txt](/llms-full.txt) _GraphCanon - The knowledge graph for AI development. https://www.graphcanon.com/_