The same protection for every way text reaches a model.

from openai import OpenAI
from pii_gateway import PiiGateway
from pii_gateway.openai import wrap_openai

gateway = PiiGateway("https://api.obvelo.com", os.environ["OBVELO_KEY"])
client = wrap_openai(OpenAI(), gateway)   # OpenAI key: yours, called directly

client.chat.completions.create(
    model="gpt-4o",
    messages=[{"role": "user",
        "content": "Summarise the claim by Anna Kowalska."}],
)

import OpenAI from "openai";
import { PiiGateway, wrapOpenAI } from "@pii-gateway/sdk";

const gateway = new PiiGateway({
  baseUrl: "https://api.obvelo.com",
  apiKey: process.env.OBVELO_KEY,
});
const client = wrapOpenAI(new OpenAI(), gateway); // your OpenAI key, called directly

await client.chat.completions.create({
  model: "gpt-4o",
  messages: [{ role: "user",
    content: "Summarise the claim by Anna Kowalska." }],
});

# 1. mask — only the text comes to us
curl https://api.obvelo.com/v1/mask \
  -H "x-obvelo-key: $OBVELO_KEY" \
  -H "Content-Type: application/json" \
  -d '{ "text": "Summarise the claim by Anna Kowalska." }'

# 2. send the masked text to your model with your own key
# 3. put the values back from the "map" in step 1 — locally

from openai import OpenAI

client = OpenAI(
    base_url="https://api.obvelo.com/v1",
    api_key=os.environ["OPENAI_API_KEY"],
    default_headers={"x-obvelo-key": os.environ["OBVELO_KEY"]},
)

client.chat.completions.create(
    model="gpt-4o",
    messages=[{"role": "user",
        "content": "Summarise the claim by Anna Kowalska."}],
)

import OpenAI from "openai";

const client = new OpenAI({
  baseURL: "https://api.obvelo.com/v1",
  apiKey: process.env.OPENAI_API_KEY,
  defaultHeaders: { "x-obvelo-key": process.env.OBVELO_KEY },
});

await client.chat.completions.create({
  model: "gpt-4o",
  messages: [{ role: "user",
    content: "Summarise the claim by Anna Kowalska." }],
});

curl https://api.obvelo.com/v1/chat/completions \
  -H "x-obvelo-key: $OBVELO_KEY" \
  -H "Authorization: Bearer $OPENAI_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gpt-4o",
    "messages": [
      { "role": "user",
        "content": "Summarise the claim by Anna Kowalska." }
    ]
  }'

your model key never reaches us · we see only the text we mask · the values come back in your process

one address changed · your provider key passes through, never stored · OpenAI, Anthropic, Gemini, Mistral