Move from OpenRouter to ZevRouter

Before

base_url = "https://openrouter.ai/api/v1"
api_key = "sk-or-..."
model = "google/gemini-2.5-flash-lite"

After

base_url = "https://router.zev.city/api/v1"
api_key = "zvr_REPLACE_ME"
model = "google/gemini-3.8-flash"

OpenAI JavaScript SDK

import OpenAI from "openai";

const client = new OpenAI({
  baseURL: "https://router.zev.city/api/v1",
  apiKey: process.env.ZEVROUTER_API_KEY
});

const completion = await client.chat.completions.create({
  model: "google/gemini-3.8-flash",
  max_completion_tokens: 128,
  messages: [
    { role: "user", content: "Confirm the ZevRouter migration." }
  ]
});

console.log(completion.choices[0].message.content);

OpenAI Python SDK

from openai import OpenAI
import os

client = OpenAI(
    base_url="https://router.zev.city/api/v1",
    api_key=os.environ["ZEVROUTER_API_KEY"],
)

completion = client.chat.completions.create(
    model="google/gemini-3.8-flash",
    max_completion_tokens=128,
    messages=[
        {"role": "user", "content": "Confirm the ZevRouter migration."}
    ],
)

print(completion.choices[0].message.content)

LiteLLM Client

from litellm import completion
import os

response = completion(
    model="openai/google/gemini-3.8-flash",
    api_base="https://router.zev.city/api/v1",
    api_key=os.environ["ZEVROUTER_API_KEY"],
    messages=[
        {"role": "user", "content": "Confirm LiteLLM uses ZevRouter."}
    ],
)

print(response["choices"][0]["message"]["content"])

Agent Environment

export OPENAI_BASE_URL="https://router.zev.city/api/v1"
export OPENAI_API_KEY="zvr_REPLACE_ME"
export OPENAI_MODEL="google/gemini-3.8-flash"

Configure my agent harness to use ZevRouter as an OpenAI-compatible provider.

Base URL: https://router.zev.city/api/v1
Model: google/gemini-3.8-flash
API key: I will provide it separately.

Do not print or commit the full API key. Run one small request, then check /activity.

Provider Preferences

{
  "model": "google/gemini-3.8-flash",
  "models": ["google/gemini-3.8-flash", "google/gemini-3.7-flash"],
  "provider": {
    "allow_fallbacks": true,
    "sort": { "by": "price", "partition": "none" },
    "max_price": { "prompt": 1, "completion": 1 }
  },
  "messages": [{ "role": "user", "content": "Use a low-cost route." }]
}

ZevRouter Routing

{
  "model": "google/gemini-3.8-flash",
  "routing": "greenest",
  "messages": [{ "role": "user", "content": "Use the lowest-carbon estimated route." }]
}

{
  "model": "google/gemini-3.8-flash",
  "provider_server": "google-vertex/global",
  "messages": [{ "role": "user", "content": "Use this provider endpoint." }]
}