API Authentication

Authentication Guide

Learn how to authenticate your API requests and manage API keys securely.

Authentication Methods

API Key

Simple bearer token authentication. Best for server-to-server integrations.

Recommended

Quick Start Example

JavaScript

// Using your API key
const response = await fetch('https://signquick.app/api/v1/documents', {
  headers: {
    'Authorization': 'Bearer sq_your_api_key_here',
    'Content-Type': 'application/json'
  }
});

const data = await response.json();

API Key Types

sq_

Your secret API key

Every key starts with sq_ and is shown once, at creation. Generate and revoke keys at Settings → Developer, then send it as the Authorization: Bearer header. Keep it secret: it grants full access to your account.

Security Best Practices

Store API keys in environment variables, never in code.
Rotate keys regularly and revoke unused keys.
Use the minimum permissions required for each integration.
Monitor API usage for unusual patterns or spikes.

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API Documentation Try Playground