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LangDB API Reference

Complete API reference for LangDB unified AI gateway services.

Introduction

This API is documented in OpenAPI format and provides access to LangDB's unified AI gateway services.

LangDB offers a comprehensive platform for managing and interacting with 250+ LLM models through a single unified interface. The API supports:

  • Multiple Model Providers: Access models from OpenAI, Anthropic, Google, Meta, and many more
  • Unified Interface: Use OpenAI-compatible API format for all models
  • Enterprise Features: Advanced routing, analytics, rate limiting, and more
  • Thread Management: Track and manage conversation threads across models
  • Usage Analytics: Monitor your API usage and costs in real-time

All API endpoints use Bearer Authentication with JWT tokens. Include your API key in the Authorization header:

Authorization: Bearer <your-api-key>

Additionally, include your Project ID in the x-project-id header for all requests:

x-project-id: <your-project-id>

API Specifications

Analytics API

Analytics and usage tracking endpoints for monitoring your LangDB usage.

View OpenAPI Specification