[FEATURE] Support for Portkey-AI/gateway API Endpoint Configuration in Flowise

[seonghobae]

Describe the feature you'd like I propose that Flowise adds support for configuring custom API endpoints to integrate with different LLM providers, such as Portkey-AI/gateway. This enhancement would allow users to seamlessly switch between AI service providers and take full advantage of what Portkey-AI/gateway has to offer within the Flowise ecosystem.

Key benefits of integrating with Portkey-AI/gateway include:

• Load Balancing: Efficiently distributes workload across various API keys, which is crucial for handling high volumes of requests and managing rate limits.
• Failover Capabilities: Provides robust failover mechanisms that ensure continuous service availability, even in the event of an API provider outage.

These features are particularly important for maintaining a reliable and scalable AI-powered application, as they help prevent downtime and service interruptions that could affect user experience.

Additional context The ability to specify a custom API endpoint would be a valuable addition to Flowise's capabilities, enhancing its appeal to users who need advanced control over their AI integrations. The integration with Portkey-AI/gateway would complement Flowise's security features by providing additional flexibility without compromising on data privacy and security standards.

The inclusion of Portkey-AI/gateway would not only improve the resilience of AI services within Flowise but also provide users with more options to tailor their AI integrations to specific needs and preferences.

I hope this feature request aligns with the vision for Flowise's growth and user empowerment. It would be a significant step forward in offering a more adaptable and robust platform.

[roh26it]

@HenryHengZJ - happy to contribute to make this happen! Can you point me to the right direction here?