Switch Providers by
Changing a String

const models = {
  free:      'meta/llama-3.3-70b',  // $0 — built-in
  balanced:  'claude-sonnet-4-6',   // $2.70/1M tokens
  reasoning: 'deepseek-r1',         // $0.135/1M tokens
  premium:   'gpt-4o',              // $4.50/1M tokens
};

const response = await fetch('https://app.neureus.ai/ai/chat', {
  method: 'POST',
  headers: { 'Authorization': `Bearer ${'{API_KEY}'}` },
  body: JSON.stringify({
    model: models.balanced,  // ← change this
    messages: [{ role: 'user', content: prompt }],
    stream: false,
  }),
});
const { text, inputTokens, outputTokens, costUsd } = await response.json();

const stream = await fetch('https://app.neureus.ai/ai/chat', {
  method: 'POST',
  headers: { 'Authorization': `Bearer ${'{API_KEY}'}` },
  body: JSON.stringify({
    model: 'claude-sonnet-4-6',  // or any model
    messages: [{ role: 'user', content: prompt }],
    stream: true,
  }),
});
const reader = stream.body.getReader();
const decoder = new TextDecoder();
while (true) {
  const { done, value } = await reader.read();
  if (done) break;
  process.stdout.write(decoder.decode(value));
}

await fetch('https://app.neureus.ai/ai/providers/openai', {
  method: 'PUT',
  headers: { 'Authorization': `Bearer ${'{API_KEY}'}` },
  body: JSON.stringify({ apiKey: 'sk-your-key' }),
});

const providers = await fetch('https://app.neureus.ai/ai/providers', {
  headers: { 'Authorization': `Bearer ${'{API_KEY}'}` },
}).then(r => r.json());
// → [{ provider: 'openai', hasKey: true, rotatedAt: '...' }]

import { NeureuClient } from '@neureus/sdk';

const client = new NeureuClient({ apiKey: process.env.NEUREUS_API_KEY });

const result = await client.ai.chat({
  model: 'deepseek-r1',
  messages: [{ role: 'user', content: 'Solve: 2x + 5 = 13' }],
});
console.log(result.text, result.costUsd);

const stream = client.ai.stream({
  model: 'claude-haiku-4-5',
  messages: [{ role: 'user', content: 'Write a haiku' }],
});
for await (const chunk of stream) process.stdout.write(chunk);