For clients already using the Messages API. Base URL:

https://51kik.com/anthropic/v1

Supported endpoints

MethodPathAuth
POST/messagesx-api-key
GET/modelsx-api-key

Authentication

Prefer Anthropic headers:

x-api-key: YOUR_API_KEY
anthropic-version: 2023-06-01

Relation to the OpenAI surface

  • model ids match the OpenAI-compatible catalog (id / code).
  • Billing, limits, and tenant policy are shared; only HTTP shapes differ.

Reference index

TopicLink
MessagesCreate message
ModelsList models
StreamingStreaming
DifferencesAnthropic compatibility

Migration

From Anthropic