Langtail
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Introduction
Langtail is a prompt management platform for product teams to build, test, and deploy AI prompts collaboratively.
Listed on
July 23, 2026
What is Langtail?
Langtail is a prompt management platform that helps product teams build, test, and deploy AI prompts collaboratively. It provides a spreadsheet-like interface for managing prompts, supports all major LLM providers, and includes features like AI Firewall for security. The platform is designed to be easy for non-developers while offering advanced testing and evaluation capabilities for engineering teams.
How to use Langtail?
- To use Langtail, start by signing up for a free account. Create prompts or assistants using the spreadsheet-like interface, then test and validate them with natural language evaluation, pattern matching, or custom code. Integrate Langtail into your app using the TypeScript SDK or OpenAPI, and deploy prompts to production with confidence. Use the AI Firewall to protect against attacks and monitor performance with data-driven insights.
Core features of Langtail
- Spreadsheet-like interface for managing AI prompts
- Natural language evaluation, pattern matching, and custom code testing
- Works with all major LLM providers (OpenAI, Anthropic, Gemini, Mistral, etc.)
- AI Firewall for security (prompt injection, DoS, info leak prevention)
- Data-driven insights and performance monitoring
- TypeScript SDK and OpenAPI support
- Self-hosting option for maximum security
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