10 best Langfuse alternatives

Laminar

Laminar is an open-source agent observability platform that captures LLM calls, tool calls, sub-agents, costs, and tokens, then surfaces failures through Signals and clustered failure modes. Hosted plans add retention, data limits, and support tiers for teams shipping production agents.

• From $30/mo
• Free plan
• API unknown

Best for: Engineering teams running AI agents who need trace visibility, automatic failure detection, and hosted retention without building observability in-house.

Executor

Executor is an open-source gateway that connects AI agents to the SaaS tools a team already uses, with cloud hosting and optional self-hosted enterprise deployment. It emphasizes safe tool execution, verified domains, and a single integration surface for agent workflows.

LangSmith

LangSmith is an enterprise LLM observability, evaluation, and monitoring platform built by LangChain.

• From $39/mo
• Free plan
• API available

Best for: Developers and engineering teams building LLM-powered applications and agents who need debugging, prompt optimization, latency tracking, and quality evaluation.

Tiptap Editor 3.0 Beta

Tiptap is a headless rich-text editor framework with 100+ extensions and a paid Tiptap Platform for collaboration, comments, DOCX conversion, AI toolkit agents, and cloud documents. Developers embed the open-source editor or buy hosted platform tiers for production document apps.

• From $49/mo

Mem0

Mem0 provides persistent memory infrastructure for AI agents and applications so context survives across sessions, users, and agents. The platform offers hosted plans with SDK integration plus open-source options for developers building production agents that need durable recall.

• From $19/mo
• Free plan
• API available

Novu

Novu is open-source notification infrastructure for connecting AI agents and products to customers across in-app, email, SMS, push, WhatsApp, Slack, Teams, and Telegram channels. Cloud plans meter workflow runs while enterprise options add compliance, residency, and self-hosted deployment.

Bubble

Bubble is a visual no-code platform for building web and mobile applications with databases, workflows, design tools, and AI-assisted development in a hosted workspace.

• From $59/mo
• Free plan
• API available

Best for: Founders and product teams shipping full-stack apps without traditional code who need Bubble-hosted infrastructure.

Pangolin

Pangolin is an open-source secure access and networking platform connecting workforces, AI agents, and infrastructure with identity-aware controls. Cloud plans add SSO, RBAC, audit logging, device posture, and an AI Gateway for identity-aware access to AI providers without sharing API keys.

• From $4/mo
• Free plan
• API available

Best for: Teams securing remote access to private apps, infrastructure, and AI workloads who want open-source software with optional managed cloud tiers.

PropelAuth

PropelAuth provides authentication and org management built for B2B and AI-native products. The platform covers hosted login UIs, SAML and enterprise SSO, RBAC, API keys, and MCP authentication so teams can ship secure multi-tenant apps faster.

• From $150/mo
• Free plan

Ravion

Ravion delivers a Vercel-like experience inside your AWS account for Terraform modules, CI/CD, deployments, previews, logs, and metrics. Teams pay per module category with compute remaining in their own cloud without platform markup on infrastructure.

• From $5/mo
• Free plan
• API unknown

Best for: Platform engineers and developers who want self-service AWS deployments and Terraform modules with included pipeline tooling.