Quickstart

This guide gets you from zero to a working API call in under five minutes.

Step 1 — Get your API key

Log in to your Crucible dashboard and navigate to Settings → API Keys. Create a new key and store it securely. Your key will only be shown once.

Step 2 — Install the SDK

Crucible offers official SDKs for Node.js and Python. Install via your package manager:

npm install crucible-sdk

pip install crucible

Step 3 — Make your first request

js
import Crucible from 'crucible-sdk';

const client = new Crucible({ apiKey: process.env.CRUCIBLE_API_KEY });

const response = await client.completions.create({
  model: 'crucible-1',
  prompt: 'Summarize the key obligations in this contract: ...',
  reasoning_mode: 'deep',
});

console.log(response.output);

js
import Crucible from 'crucible-sdk';

const client = new Crucible({ apiKey: process.env.CRUCIBLE_API_KEY });

const response = await client.completions.create({
  model: 'crucible-1',
  prompt: 'Summarize the key obligations in this contract: ...',
  reasoning_mode: 'deep',
});

console.log(response.output);

js
import Crucible from 'crucible-sdk';

const client = new Crucible({ apiKey: process.env.CRUCIBLE_API_KEY });

const response = await client.completions.create({
  model: 'crucible-1',
  prompt: 'Summarize the key obligations in this contract: ...',
  reasoning_mode: 'deep',
});

console.log(response.output);

Step 4 — Read the response

The API returns a structured response object. The output field contains the final model output. The reasoning_trace field, available on deep reasoning mode, contains the model's step-by-step reasoning chain.

You're live. From here, explore Reasoning Modes to understand how to control model behavior, or check Available Models for a full breakdown of model tiers.

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