AI Gateway

One API.
Your application.

Access models through an OpenAI-compatible API. Organize keys, review usage and choose an access plan for your application.

Model availability and BYOK depend on your plan and configuration.

Two software professionals review an integration at a shared desk.
One journey, three decisions
  1. API key
  2. Request
  3. Response

Your first request, with a clear foundation

Configure the URL and your key. Retrieve enabled identifiers with client.models.list() and choose one for NAPSIX_MODEL_ID.

import OpenAI from "openai";

const client = new OpenAI({
  baseURL: "https://www.napsix.com/api/gateway/v1",
  apiKey: process.env.NAPSIX_API_KEY,
});

// Mato v1.0 — nuestro modelo insignia: gratis en todos los planes.
const response = await client.chat.completions.create({
  model: "napsix/mato-v1.0",
  messages: [{ role: "user", content: "Hola Mato" }],
});

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

// Todos los modelos disponibles:
// const models = await client.models.list();

Integration example. Set NAPSIX_API_KEY and NAPSIX_MODEL_ID on your server; do not expose keys in the browser.

Start in 2 minutes

OpenAI-compatible: change the baseURL, use your API key, done. Mato v1.0 — our flagship model — is included free on every plan.

Start in 2 minutes
What you needValue
Base URLhttps://www.napsix.com/api/gateway/v1
AuthenticationAuthorization: Bearer nsx_live_…
Mato v1.0Free on every plan: 10M tokens/month on Free (separate quota, doesn't consume your plan)
Rate limits100 req/min per key · 300 req/min platform-wide for Mato
ErrorsOpenAI-style (401 / 402 / 403 / 429 / 503)

A clear foundation for integration

Separate access, model selection and usage monitoring.

  • A compatible interface

    Use the OpenAI-compatible chat completions format. Validate which parameters each model supports.

  • Model selection

    Choose a model enabled for your task and plan from the platform catalog.

  • BYOK by plan

    Connect your own keys when your plan includes it. Provider usage remains subject to its own terms.

  • Usage monitoring

    Review application usage in the Gateway console and compare it with your plan limits.

  • Streaming and tools

    Check the selected model's capabilities before adding streaming, tools or multimodal inputs.

  • API reference

    Consult the OpenAPI schema and use the example URL to prepare your integration.

Transparent pricing

BYOK always free. You pay for features and included tokens.

Gateway Free

USD 0/mo
  • 100,000 tokens a month
  • 5 API keys
  • Basic models (Llama 3.3, DeepSeek, GPT-OSS)
  • No credit card
Start free

Gateway Starter

USD 99/mo
  • 10 million tokens a month
  • 25 API keys
  • Basic and premium models (Sonnet, GPT-5-mini)
  • Bring your own Anthropic or OpenAI keys
  • 14-day trial
Try Starter

Gateway Enterprise

Custom
  • Unlimited tokens and keys
  • SLA defined in your contract, plus dedicated support
  • Your own keys, priority routing and white-label
  • Endpoint on your own domain
Talk to sales
Compare Gateway limits
What's includedGateway FreeGateway StarterGateway ProGateway Enterprise
Tokens per month100,00010,000,000100,000,000Unlimited
API keys525UnlimitedUnlimited
People1525Unlimited
BYOK · your own keysNoYesYesYes

Monthly limits where indicated. Features and conditions depend on your selected plan; consult the catalog for available models.

Your next step

From evaluation to a concrete integration.

Start with an account or talk to us about the scope of your team and application.

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