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Documentation Index

Fetch the complete documentation index at: https://mintlify.com/blindpaylabs/blindpay-node/llms.txt

Use this file to discover all available pages before exploring further.

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Authentication

The BlindPay Node.js SDK uses API key authentication. Every request to the BlindPay API requires both an API key and an Instance ID.

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Getting Your Credentials

1

Create a BlindPay account

If you don’t have an account yet, sign up at app.blindpay.com.
2

Create or select an instance

An instance represents your integration environment (e.g., production, staging). Each instance has its own API keys and configuration.Navigate to your dashboard and create a new instance or select an existing one.
3

Generate an API key

  1. Go to your instance dashboard
  2. Navigate to Settings → API Keys
  3. Click Create API Key
  4. Copy your API key immediately - you won’t be able to see it again
  5. Note your Instance ID (displayed at the top of the page)
Store your API key securely. It provides full access to your BlindPay instance and should be treated like a password.

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Initializing the Client

Once you have your credentials, initialize the BlindPay client: 
import { BlindPay } from '@blindpay/node';

const blindpay = new BlindPay({
  apiKey: 'your-api-key-here',
  instanceId: 'your-instance-id-here'
});

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Constructor Parameters

The BlindPay constructor accepts an object with the following required parameters:
ParameterTypeDescription
apiKeystringYour BlindPay API key
instanceIdstringYour instance identifier
Both parameters are required. The SDK will throw a BlindPayError if either is missing.

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Secure Credential Storage

Never hardcode your API credentials in your source code. Use environment variables instead.

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Using Environment Variables

Create a .env file in your project root:
.env
BLINDPAY_API_KEY=bp_live_abc123...
BLINDPAY_INSTANCE_ID=inst_xyz789...
Then reference them in your code: 
import { BlindPay } from '@blindpay/node';

const blindpay = new BlindPay({
  apiKey: process.env.BLINDPAY_API_KEY!,
  instanceId: process.env.BLINDPAY_INSTANCE_ID!
});

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Environment Variable Best Practices

Add to .gitignore

Never commit .env files to version control:
.gitignore
.env
.env.local
.env.*.local

Use different keys per environment

Maintain separate API keys for development, staging, and production environments.

Rotate keys regularly

Periodically rotate your API keys and revoke old ones to maintain security.

Use secret management

For production, use a secret management service like AWS Secrets Manager, HashiCorp Vault, or your platform’s secret store.

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Managing API Keys

You can manage your API keys programmatically using the SDK:

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List API Keys

Retrieve all API keys for your instance: 
const { data, error } = await blindpay.instances.apiKeys.list();

if (error) {
  console.error('Failed to list API keys:', error.message);
  return;
}

console.log('API Keys:');
data.forEach(key => {
  console.log(`- ${key.name} (created: ${key.created_at})`);
});

​
Create New API Key

Generate a new API key programmatically: 
const { data, error } = await blindpay.instances.apiKeys.create({
  name: 'Production API Key'
});

if (error) {
  console.error('Failed to create API key:', error.message);
  return;
}

console.log('New API Key created:');
console.log('Key:', data.key);
console.log('ID:', data.id);
The API key value is only returned once when created. Store it securely immediately.

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Delete API Key

Revoke an API key when it’s no longer needed: 
const { error } = await blindpay.instances.apiKeys.delete('key_id_here');

if (error) {
  console.error('Failed to delete API key:', error.message);
  return;
}

console.log('API key successfully revoked');
Before deleting an API key, ensure it’s not being used by any active applications or services.

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Authentication Headers

When you make requests through the SDK, the following headers are automatically included:
HeaderValueDescription
AuthorizationBearer {apiKey}Your API key for authentication
Content-Typeapplication/jsonRequest payload format
Acceptapplication/jsonExpected response format
User-Agentblindpay-node/{version}SDK identifier and version
You don’t need to set these manually - the SDK handles them automatically.

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Error Handling

The SDK provides clear error messages for authentication failures: 
try {
  const blindpay = new BlindPay({
    apiKey: '',  // Invalid: empty string
    instanceId: 'inst_123'
  });
} catch (error) {
  // Throws: BlindPayError: "Api key not provided, get your api key on blindpay dashboard"
  console.error(error.message);
}

try {
  const blindpay = new BlindPay({
    apiKey: 'bp_test_key',
    instanceId: ''  // Invalid: empty string
  });
} catch (error) {
  // Throws: BlindPayError: "Instance id not provided, get your instance id on blindpay dashboard"
  console.error(error.message);
}

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Invalid Credentials Response

When making API calls with invalid credentials, you’ll receive an error response: 
const { data, error } = await blindpay.available.getRails();

if (error) {
  // error.message will contain details like:
  // - "Unauthorized" (invalid API key)
  // - "Instance not found" (invalid instance ID)
  console.error('Authentication failed:', error.message);
}

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Security Best Practices

1

Use environment-specific keys

Create separate API keys for development, staging, and production environments. Never use production keys in development.
2

Implement key rotation

Regularly rotate your API keys (e.g., every 90 days). Create a new key, update your applications, then revoke the old key.
3

Monitor API key usage

Use the BlindPay dashboard to monitor API calls and detect any unusual activity.
4

Restrict key permissions

When the feature becomes available, use API keys with minimum required permissions for each application.
5

Secure your deployment environment

Ensure your production servers and deployment pipelines securely handle environment variables and secrets.

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Webhook Signature Verification

For webhook endpoints, verify the signature to ensure requests are from BlindPay: 
import { BlindPay } from '@blindpay/node';
import express from 'express';

const app = express();
const blindpay = new BlindPay({
  apiKey: process.env.BLINDPAY_API_KEY!,
  instanceId: process.env.BLINDPAY_INSTANCE_ID!
});

app.post('/webhooks/blindpay', express.raw({ type: 'application/json' }), (req, res) => {
  const signature = req.headers['svix-signature'] as string;
  const id = req.headers['svix-id'] as string;
  const timestamp = req.headers['svix-timestamp'] as string;
  const payload = req.body.toString();

  const isValid = blindpay.verifyWebhookSignature({
    secret: process.env.BLINDPAY_WEBHOOK_SECRET!,
    headers: {
      id,
      timestamp,
      signature
    },
    payload
  });

  if (!isValid) {
    return res.status(401).json({ error: 'Invalid signature' });
  }

  // Process the webhook
  const event = JSON.parse(payload);
  console.log('Webhook event:', event.type);
  
  res.json({ received: true });
});
The webhook secret is different from your API key. Get it from the webhook endpoint configuration in your BlindPay dashboard.

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Testing Authentication

Verify your authentication is working correctly:
test-auth.ts
import { BlindPay } from '@blindpay/node';

async function testAuthentication() {
  const blindpay = new BlindPay({
    apiKey: process.env.BLINDPAY_API_KEY!,
    instanceId: process.env.BLINDPAY_INSTANCE_ID!
  });

  console.log('Testing authentication...');

  const { data, error } = await blindpay.instances.get();

  if (error) {
    console.error('❌ Authentication failed:', error.message);
    process.exit(1);
  }

  console.log('✅ Authentication successful!');
  console.log('Instance name:', data.name);
  console.log('Instance ID:', data.id);
}

testAuthentication();

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Next Steps

Quickstart

Make your first API call with authenticated client

Receivers

Learn how to create and manage payment receivers

Webhooks

Set up webhook endpoints for event notifications

API Reference

Explore the complete API documentation

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