One key for every model

curl https://ai.overblast.app/v1/chat/completions \
  -H "Authorization: Bearer $OVERBLAST_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "anthropic/claude-sonnet-5.5",
    "messages": [{"role": "user", "content": "Say hello in Estonian"}]
  }'

# pip install openai
import os
from openai import OpenAI

client = OpenAI(
    base_url="https://ai.overblast.app/v1",
    api_key=os.environ["OVERBLAST_API_KEY"],
)
reply = client.chat.completions.create(
    model="openai/gpt-6.1-sol",
    messages=[{"role": "user", "content": "Say hello in Estonian"}],
)
print(reply.choices[0].message.content)

// npm install openai
import OpenAI from 'openai';

const client = new OpenAI({
  baseURL: 'https://ai.overblast.app/v1',
  apiKey: process.env.OVERBLAST_API_KEY,
});
const reply = await client.chat.completions.create({
  model: 'openai/gpt-6.1-sol',
  messages: [{ role: 'user', content: 'Say hello in Estonian' }],
});
console.log(reply.choices[0].message.content);

# Claude Code adds /v1/messages to the base URL itself
export ANTHROPIC_BASE_URL=https://ai.overblast.app
export ANTHROPIC_AUTH_TOKEN=$OVERBLAST_API_KEY
export ANTHROPIC_MODEL=anthropic/claude-sonnet-5.5
export ANTHROPIC_DEFAULT_HAIKU_MODEL=anthropic/claude-haiku-4.5
export CLAUDE_CODE_DISABLE_UNKNOWN_MODEL_WINDOW_ENFORCEMENT=1
# a real Anthropic key would be sent instead of yours
unset ANTHROPIC_API_KEY
claude

# ~/.codex/config.toml
[model_providers.overblast]
name = "Overblast"
base_url = "https://ai.overblast.app/v1"
env_key = "OVERBLAST_API_KEY"
wire_api = "responses"

# then, for one run
codex -c model_provider=overblast -c model=openai/gpt-6.1-sol