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Quick Start

Get started with Monster API in under 2 minutes: 
from portkey_ai import Portkey

# 1. Install: pip install portkey-ai
# 2. Add @monsterapi provider in model catalog
# 3. Use it:

portkey = Portkey(api_key="PORTKEY_API_KEY")

response = portkey.chat.completions.create(
    model="@monsterapi/llama-3.1-8b-instruct",
    messages=[{"role": "user", "content": "Hello!"}]
)

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

import Portkey from 'portkey-ai'

// 1. Install: npm install portkey-ai
// 2. Add @monsterapi provider in model catalog
// 3. Use it:

const portkey = new Portkey({
    apiKey: "PORTKEY_API_KEY"
})

const response = await portkey.chat.completions.create({
    model: "@monsterapi/llama-3.1-8b-instruct",
    messages: [{ role: "user", content: "Hello!" }]
})

console.log(response.choices[0].message.content)

from openai import OpenAI
from portkey_ai import PORTKEY_GATEWAY_URL

# 1. Install: pip install openai portkey-ai
# 2. Add @monsterapi provider in model catalog
# 3. Use it:

client = OpenAI(
    api_key="PORTKEY_API_KEY",  # Portkey API key
    base_url=PORTKEY_GATEWAY_URL
)

response = client.chat.completions.create(
    model="@monsterapi/llama-3.1-8b-instruct",
    messages=[{"role": "user", "content": "Hello!"}]
)

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

import OpenAI from "openai"
import { PORTKEY_GATEWAY_URL } from "portkey-ai"

// 1. Install: npm install openai portkey-ai
// 2. Add @monsterapi provider in model catalog
// 3. Use it:

const client = new OpenAI({
    apiKey: "PORTKEY_API_KEY",  // Portkey API key
    baseURL: PORTKEY_GATEWAY_URL
})

const response = await client.chat.completions.create({
    model: "@monsterapi/llama-3.1-8b-instruct",
    messages: [{ role: "user", content: "Hello!" }]
})

console.log(response.choices[0].message.content)

# 1. Add @monsterapi provider in model catalog
# 2. Use it:

curl https://api.portkey.ai/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "x-portkey-api-key: $PORTKEY_API_KEY" \
  -d '{
    "model": "@monsterapi/llama-3.1-8b-instruct",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'

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Add Provider in Model Catalog

Before making requests, add Monster API to your Model Catalog:
  1. Go to Model Catalog → Add Provider
  2. Select Monster API
  3. Enter your Monster API key
  4. Name your provider (e.g., monsterapi)

Complete Setup Guide

See all setup options and detailed configuration instructions

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Supported Models

Monster API provides cost-effective access to open-source models:

Supported Models

View the complete list of Monster API models
Popular models include:
  • llama-3.1-8b-instruct
  • TinyLlama/TinyLlama-1.1B-Chat-v1.0
  • mistral-7b-instruct

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Next Steps

Gateway Configs

Add fallbacks, load balancing, and more

Observability

Monitor and trace your Monster API requests

Prompt Library

Manage and version your prompts

Metadata

Add custom metadata to requests
For complete SDK documentation:

SDK Reference

Complete Portkey SDK documentation
Last modified on March 13, 2026