REST API

The Prysm proxy exposes OpenAI-compatible endpoints. Any HTTP client or SDK that works with OpenAI works with Prysm — just change the base URL and API key.

Base URL

https://prysmai.io/api/v1

Authentication

Authorization: Bearer sk-prysm-your-key-here

Endpoints

POST /chat/completions

Standard OpenAI chat completions endpoint. Supports all parameters including stream, tools, logprobs, response_format, etc.

curl -X POST https://prysmai.io/api/v1/chat/completions \
  -H "Authorization: Bearer sk-prysm-..." \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gpt-4o-mini",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'

POST /completions

Legacy text completions endpoint.

POST /embeddings

Generate embeddings using any supported embedding model.

curl -X POST https://prysmai.io/api/v1/embeddings \
  -H "Authorization: Bearer sk-prysm-..." \
  -H "Content-Type: application/json" \
  -d '{
    "model": "text-embedding-3-small",
    "input": "Hello world"
  }'

GET /models

Lists all supported models grouped by provider.

Custom Headers