For AI agents: a documentation index is available at the root level at /llms.txt and /llms-full.txt. Append /llms.txt to any URL for a page-level index, or .md for the markdown version of any page.
Search
/
Ask AI
Models
Chat
Rankings
Docs
Docs
API Reference
Client SDKs
Agent SDK
Cookbook
API Reference
Providers
List all providers
Copy page
GET
https://openrouter.ai/api/v1
/
providers
Docs
API Reference
Client SDKs
Agent SDK
Cookbook
API Guides
Overview
Streaming
Embeddings
Limits
Authentication
Parameters
Errors and Debugging
Responses API
API Reference
Responses
OAuth
Speech
Transcriptions
Analytics
Byok
Chat
Credits
Datasets
Embeddings
Endpoints
Generations
Guardrails
API Keys
Anthropic Messages
Models
Observability
Organization
Presets
Providers
GET
List all providers
Rerank
Video Generation
Workspaces
Models
Chat
Rankings
Docs
Authentication
Authorization
Bearer
API key as bearer token in Authorization header
Response
Returns a list of providers
data
list of objects
Show 7 properties
Errors
500
Internal Server Error
