Getting Started with Capital Check In API

This guide will help you set up your first integration with Capital Check In API in less than 10 minutes.

Prerequisites

An account on Capital Check In
Basic knowledge of HTTP and JSON
A code editor (VS Code, Sublime Text, etc.)

Step 1: Create an Account

Go to Capital Check In
Click “Sign Up”
Complete the form with your information
Verify your email
Complete the initial onboarding

Create Account

Step 2: Get Credentials

Once you’ve completed registration:

Log in to your dashboard
Go to Settings > API
Copy your Company ID and API Key (if applicable)

For most integrations, you’ll only need your Company ID. The API Key is optional and used for specific applications.

Step 3: Configure Authentication

Capital Check In API uses JWT Bearer tokens for authentication. First, you need to obtain a token:

curl -X POST https://api.capitalcheckin.app/v1/auth/login \
  -H "Content-Type: application/json" \
  -d '{
    "email": "your-email@company.com",
    "password": "your-password"
  }'

Response:

{
  "access_token": "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9...",
  "token_type": "bearer",
  "expires_in": 86400,
  "user": {
    "id": "123",
    "name": "Your Name",
    "email": "your-email@company.com",
    "company_id": "456"
  }
}

Step 4: Make Your First Request

Now that you have a token, you can make authenticated requests:

Get User Profile

curl -X GET https://api.capitalcheckin.app/v1/auth/user \
  -H "Authorization: Bearer YOUR_ACCESS_TOKEN" \
  -H "X-Company-Id: YOUR_COMPANY_ID"

Response:

{
  "id": "123",
  "name": "Your Name",
  "email": "your-email@company.com",
  "company_id": "456",
  "role": "admin",
  "created_at": "2024-01-15T10:00:00Z"
}

List Collaborators

curl -X GET https://api.capitalcheckin.app/v1/collaborators \
  -H "Authorization: Bearer YOUR_ACCESS_TOKEN" \
  -H "X-Company-Id: YOUR_COMPANY_ID"

Implementation Examples

JavaScript/Node.js

// Install the SDK
// npm install @capitalcheckin/sdk

import { CapitalCheckInAPI } from '@capitalcheckin/sdk';

// Initialize the API client
const api = new CapitalCheckInAPI({
  baseURL: 'https://api.capitalcheckin.app/v1',
  token: 'your-jwt-token',
  companyId: 'your-company-id'
});

// Login
async function login() {
  try {
    const response = await api.auth.login({
      email: 'your-email@company.com',
      password: 'your-password'
    });
    
    console.log('Login successful:', response);
    return response.access_token;
  } catch (error) {
    console.error('Login failed:', error);
  }
}

// Get user profile
async function getUserProfile() {
  try {
    const user = await api.auth.getUser();
    console.log('User profile:', user);
    return user;
  } catch (error) {
    console.error('Failed to get user profile:', error);
  }
}

// List collaborators
async function getCollaborators() {
  try {
    const collaborators = await api.collaborators.list({
      page: 1,
      per_page: 10,
      status: 'active'
    });
    
    console.log('Collaborators:', collaborators);
    return collaborators;
  } catch (error) {
    console.error('Failed to get collaborators:', error);
  }
}

// Create a collaborator
async function createCollaborator() {
  try {
    const newCollaborator = {
      name: 'John Doe',
      email: 'john@company.com',
      phone: '+1234567890',
      position: 'Developer',
      department: 'Engineering'
    };
    
    const collaborator = await api.collaborators.create(newCollaborator);
    console.log('Collaborator created:', collaborator);
    return collaborator;
  } catch (error) {
    console.error('Failed to create collaborator:', error);
  }
}

Python

# Install the SDK
# pip install capitalcheckin

from capitalcheckin import CapitalCheckInAPI

# Initialize the API client
api = CapitalCheckInAPI(
    base_url='https://api.capitalcheckin.app/v1',
    token='your-jwt-token',
    company_id='your-company-id'
)

# Login
def login():
    try:
        response = api.auth.login(
            email='your-email@company.com',
            password='your-password'
        )
        print('Login successful:', response)
        return response['access_token']
    except Exception as e:
        print('Login failed:', e)

# Get user profile
def get_user_profile():
    try:
        user = api.auth.get_user()
        print('User profile:', user)
        return user
    except Exception as e:
        print('Failed to get user profile:', e)

# List collaborators
def get_collaborators():
    try:
        collaborators = api.collaborators.list(
            page=1,
            per_page=10,
            status='active'
        )
        print('Collaborators:', collaborators)
        return collaborators
    except Exception as e:
        print('Failed to get collaborators:', e)

# Create a collaborator
def create_collaborator():
    try:
        new_collaborator = {
            'name': 'John Doe',
            'email': 'john@company.com',
            'phone': '+1234567890',
            'position': 'Developer',
            'department': 'Engineering'
        }
        
        collaborator = api.collaborators.create(new_collaborator)
        print('Collaborator created:', collaborator)
        return collaborator
    except Exception as e:
        print('Failed to create collaborator:', e)

PHP

// Install the SDK
// composer require capitalcheckin/sdk

use CapitalCheckIn\CapitalCheckInAPI;

// Initialize the API client
$api = new CapitalCheckInAPI([
    'base_url' => 'https://api.capitalcheckin.app/v1',
    'token' => 'your-jwt-token',
    'company_id' => 'your-company-id'
]);

// Login
function login() {
    global $api;
    try {
        $response = $api->auth->login([
            'email' => 'your-email@company.com',
            'password' => 'your-password'
        ]);
        
        echo 'Login successful: ' . json_encode($response) . "\n";
        return $response['access_token'];
    } catch (Exception $e) {
        echo 'Login failed: ' . $e->getMessage() . "\n";
    }
}

// Get user profile
function getUserProfile() {
    global $api;
    try {
        $user = $api->auth->getUser();
        echo 'User profile: ' . json_encode($user) . "\n";
        return $user;
    } catch (Exception $e) {
        echo 'Failed to get user profile: ' . $e->getMessage() . "\n";
    }
}

// List collaborators
function getCollaborators() {
    global $api;
    try {
        $collaborators = $api->collaborators->list([
            'page' => 1,
            'per_page' => 10,
            'status' => 'active'
        ]);
        
        echo 'Collaborators: ' . json_encode($collaborators) . "\n";
        return $collaborators;
    } catch (Exception $e) {
        echo 'Failed to get collaborators: ' . $e->getMessage() . "\n";
    }
}

// Create a collaborator
function createCollaborator() {
    global $api;
    try {
        $newCollaborator = [
            'name' => 'John Doe',
            'email' => 'john@company.com',
            'phone' => '+1234567890',
            'position' => 'Developer',
            'department' => 'Engineering'
        ];
        
        $collaborator = $api->collaborators->create($newCollaborator);
        echo 'Collaborator created: ' . json_encode($collaborator) . "\n";
        return $collaborator;
    } catch (Exception $e) {
        echo 'Failed to create collaborator: ' . $e->getMessage() . "\n";
    }
}

Next Steps

Now that you have the basics working, here are some next steps:

Troubleshooting

Common Issues

401 Unauthorized

Check that your token is valid and not expired
Verify that you’re including the Authorization: Bearer header
Ensure your Company ID is correct

403 Forbidden

Verify that your user has the necessary permissions
Check that you’re using the correct Company ID

422 Validation Error

Review the request body format
Check that all required fields are included
Verify data types (strings, numbers, etc.)

429 Too Many Requests

You’ve exceeded the rate limit
Wait before making more requests
Consider implementing exponential backoff

Getting Help

If you encounter issues:

Check the documentation - This guide and the API reference
Review error messages - They often contain helpful information
Contact support - Email us at hi@capitalcheckin.app
Join the community - Connect with other developers

API Reference

Explore all available endpoints

Introduction

Authentication

Quickstart

Getting Started with Capital Check In API

Prerequisites

Step 1: Create an Account

Create Account

Step 2: Get Credentials

Step 3: Configure Authentication

Step 4: Make Your First Request

Get User Profile

List Collaborators

Implementation Examples

JavaScript/Node.js

Python

PHP

Next Steps

Troubleshooting

Common Issues

Getting Help

API Reference

​Getting Started with Capital Check In API

​Prerequisites

​Step 1: Create an Account

Create Account

​Step 2: Get Credentials

​Step 3: Configure Authentication

​Option A: Email/Password Login

​Step 4: Make Your First Request

​Get User Profile

​List Collaborators

​Implementation Examples

​JavaScript/Node.js

​Python

​PHP

​Next Steps

​Troubleshooting

​Common Issues

​Getting Help

API Reference

Getting Started with Capital Check In API

Prerequisites

Step 1: Create an Account

Step 2: Get Credentials

Step 3: Configure Authentication

Option A: Email/Password Login

Step 4: Make Your First Request

Get User Profile

List Collaborators

Implementation Examples

JavaScript/Node.js

Python

PHP

Next Steps

Troubleshooting

Common Issues

Getting Help