Custom API Authentication

Custom API authentication refers to the methods used to verify and secure connections between applications when communicating via APIs. In Activepieces, custom API authentication is supported through methods such as OAuth 2.0, API keys, and tokens, allowing users to integrate securely with third-party and internal services.

What Is Custom API Authentication?

Custom API authentication is the process of verifying that an application or user has the right to access a particular API. Since APIs act as gateways to valuable data and system functionality, authentication ensures that only trusted and authorized requests are allowed.

There are different methods of API authentication:

• API keys: Unique strings assigned to clients, used to verify requests.
• OAuth 2.0: A widely adopted protocol that allows secure delegated access without sharing passwords.
• Bearer tokens: Temporary tokens issued for short-lived access.
• Basic authentication: A simpler method using encoded usernames and passwords, though less secure than modern approaches.

The “custom” aspect of API authentication comes into play when developers or businesses configure workflows to match the specific requirements of each service.

In Activepieces, this flexibility is essential because different APIs demand different authentication methods.

How Does Custom API Authentication Work?

Custom API authentication works by pairing requests with credentials that prove identity and authorization. In Activepieces, the process typically involves:

• Authentication method selection: Depending on the API, users configure OAuth, API keys, or token-based authentication.
• Credential setup: Users securely input keys, client IDs, client secrets, or tokens into Activepieces.
• Request handling: The platform includes these credentials in API calls when flows run.
• Verification: The external service checks the credentials against its records.
• Access granted or denied: If the credentials are valid, the API responds with data or performs the requested action.

By supporting multiple methods, Activepieces ensures compatibility with a wide range of APIs, from modern SaaS platforms to custom-built internal tools.

Why Is Custom API Authentication Important?

Custom API authentication is important because APIs provide access to critical systems and data. Without proper authentication, systems would be vulnerable to unauthorized access, data leaks, or misuse.

The main reasons it matters include:

• Security: Protects sensitive information and prevents unauthorized access.
• Flexibility: Supports diverse APIs, each with unique authentication requirements.
• Scalability: Enables workflows to connect with hundreds of different services.
• Compliance: Meets industry standards for protecting customer and organizational data.
• User experience: Provides smooth, secure connections without needing to share passwords directly.

For Activepieces, supporting custom API authentication ensures the platform can integrate securely with virtually any app or service, making it a flexible hub for automation.

Common Use Cases

Custom API authentication is applied whenever workflows connect to external or internal services that require secure access. Examples in Activepieces include:

• SaaS integrations: Connect securely to apps like Slack, Google Sheets, or Notion using OAuth.
• Custom systems: Authenticate with in-house APIs using API keys or tokens.
• Finance: Access banking or payment APIs that require advanced security measures.
• Healthcare: Integrate with APIs that manage sensitive data while adhering to strict compliance rules.
• AI workflows: Connect to AI model APIs such as OpenAI or Hugging Face using tokens.
• Operations: Automate processes across proprietary systems using unique authentication methods.

These scenarios show how authentication is the foundation for reliable and secure automation.

FAQs About Custom API Authentication

What is custom API authentication?

Custom API authentication is the process of securing API connections by using credentials such as OAuth tokens, API keys, or client secrets. It makes sure only authorized requests can access data or perform actions.

Why is API authentication important in workflows?

It is important because APIs often expose sensitive data and functionality. Authentication prevents unauthorized access, ensures compliance with security standards, and builds trust in automated workflows.

How does Activepieces support custom API authentication?

Activepieces supports multiple authentication methods, including OAuth 2.0, API keys, and tokens. This flexibility allows users to integrate with a wide range of APIs securely, whether they are SaaS platforms or custom-built internal systems.

‍