Anthropic

Messages shape. SDKs and Claude Code take the origin as the base URL. The path is still /v1/messages.

Base URL

https://kasva.dev

Local

http://127.0.0.1:8787

Auth

x-api-key: YOUR_API_KEY

Also

Authorization: Bearer YOUR_API_KEY

Version

anthropic-version: 2023-06-01

Model

kasva/auto

Path

POST /v1/messages

Use the Kasva kv_… key, not a provider sk-ant-…. If both Bearer and x-api-key are sent, Bearer wins. The anthropic-version header is optional.

curl

curl https://kasva.dev/v1/messages \
  -H "x-api-key: YOUR_API_KEY" \
  -H "anthropic-version: 2023-06-01" \
  -H "Content-Type: application/json" \
  -d '{"model":"kasva/auto","max_tokens":1024,"messages":[{"role":"user","content":"Hello"}]}'

OpenAI shape: OpenAI. Full path list: API reference.